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DATA SHEET
TDA8588J; TDA8588xJ I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Product specification 2004 Feb 24
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
FEATURES Amplifiers * I2C-bus control * Can drive a 2 load with a battery voltage of up to 16 V and a 4 load with a battery voltage of up to 18 V * DC load detection, open, short and present * AC load (tweeter) detection * Programmable clip detect; 1 % or 4 % * Programmable thermal protection pre-warning * Independent short-circuit protection per channel * Low gain line driver mode (20 dB) * Loss-of-ground and open VP safe * All outputs protected from short-circuit to ground, to VP or across the load * All pins protected from short-circuit to ground * Soft thermal-clipping to prevent audio holes * Low battery detection. APPLICATIONS Voltage regulators GENERAL * I2C-bus control * Good stability for any regulator with almost any output capacitor value * Five voltage regulators (microcontroller, display, mechanical digital, mechanical drive and audio) * Choice of non-adjustable 3.3 or 5 V microcontroller supply (REG2) versions reducing risk of overvoltage damage * Choice of non-adjustable 3.3 or 5 V digital signal processor supply (REG3) versions reducing risk of overvoltage damage * Selectable output voltages for regulators 1, 4 and 5 * Low dropout voltage PNP output stages * High supply voltage ripple rejection * Low noise for all regulators * Two power switches (antenna switch and amplifier switch) * Regulator 2 (microcontroller supply) operational during load-dump and thermal shut-down * Low quiescent current (only regulator 2 is operational) * Reset output (push-pull output stage) * Adjustable reset delay time * Backup functionality. 2004 Feb 24 2 PROTECTION
TDA8588J; TDA8588xJ
* If connection to the battery voltage is reversed, all regulator voltages will be zero * Able to withstand voltages at the output of up to 18 V (supply line may be short-circuited) * Thermal protection to avoid thermal breakdown * Load-dump protection * Regulator outputs protected from DC short-circuit to ground or to supply voltage * All regulators protected by foldback current limiting * Power switches protected from loss-of-ground.
* Boost amplifier and voltage regulator for car radios and CD/MD players. GENERAL DESCRIPTION Amplifiers The TDA8588 has a complementary quad audio power amplifier that uses BCDMOS technology. It contains four amplifiers configured in Bridge Tied Load (BTL) to drive speakers for front and rear left and right channels. The I2C-bus allows diagnostic information of each amplifier and its speaker to be read separately. Both front and both rear channel amplifiers can be configured independently in line driver mode with a gain of 20 dB (differential output). Voltage regulators The TDA8588 has a multiple output voltage regulator with two power switches. The voltage regulator contains the following: * Four switchable regulators and one permanently active regulator (microcontroller supply) * Two power switches with loss-of-ground protection * A reset output that can be used to communicate with a microcontroller. The quiescent current has a very low level of 150 A with only regulator 2 active.
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
QUICK REFERENCE DATA SYMBOL Amplifiers VP1, VP2 Iq(tot) Po(max) operating supply voltage total quiescent current maximum output power PARAMETER CONDITIONS
TDA8588J; TDA8588xJ
MIN.
TYP.
MAX. UNIT
8 - RL = 4 ; VP = 14.4 V; VIN = 2 V 44 RMS square wave RL = 4 ; VP = 15.2 V; VIN = 2 V 49 RMS square wave RL = 2 ; VP = 14.4 V; VIN = 2 V 83 RMS square wave
14.4 270 46 52 87 0.01 50 25
18 400 - - - 0.1 70 35
V mA W W W % V V
THD Vn(o)(amp) Vn(o)(LN)
total harmonic distortion noise output voltage in amplifier mode noise output voltage in line driver mode
- - -
Voltage regulators SUPPLY VP supply voltage regulator 1, 3, 4 and 5 on regulator 2 on jump starts for t 10 minutes load dump protection for t 50 ms and tr 2.5 ms overvoltage for shut-down Iq(tot) VO(REG1) total quiescent supply current standby mode; VP = 14.4 V 0.5 mA IO 400 mA; selectable via I2C-bus IB2[D3:D2] = 01 IB2[D3:D2] = 10 IB2[D3:D2] = 11 VO(REG2) output voltage of regulator 2 0.5 mA IO 350 mA TDA8588J; TDA8588AJ TDA8588BJ VO(REG3) output voltage of regulator 3 0.5 mA IO 300 mA TDA8588J TDA8588AJ; TDA8588BJ VO(REG4) output voltage of regulator 4 maximum current 1.6 A; 0.5 mA IO 800 mA; selectable via I2C-bus IB2[D7:D5] = 001 IB2[D7:D5] = 010 IB2[D7:D5] = 011 IB2[D7:D5] = 100 - - - - 5.0 6.0 7.0 8.6 - - - - V V V V - - 5.0 3.3 - - V V - - 5.0 3.3 - - V V - - - 8.3 8.5 8.7 - - - V V V VOLTAGE REGULATORS output voltage of regulator 1 10 4 - - 20 - 14.4 - - - - 150 18 - 30 50 - 190 V V V V V A
2004 Feb 24
3
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL VO(REG5) PARAMETER output voltage of regulator 5 CONDITIONS 0.5 mA IO 400 mA; selectable via I2C-bus IB1[D7:D4] = 0001 IB1[D7:D4] = 0010 IB1[D7:D4] = 0011 IB1[D7:D4] = 0100 IB1[D7:D4] = 0101 IB1[D7:D4] = 0110 IB1[D7:D4] = 0111 IB1[D7:D4] = 1000 IB1[D7:D4] = 1001 POWER SWITCHES Vdrop(SW1) Vdrop(SW2) dropout voltage of switch 1 dropout voltage of switch 2 IO = 400 mA IO = 400 mA
TDA8588J; TDA8588xJ
MIN.
TYP.
MAX. UNIT
- - - - - - - - -
6.0 7.0 8.2 9.0 9.5 10.0 10.4 12.5 VP - 1
- - - - - - - - -
V V V V V V V V V
- -
0.6 0.6
1.1 1.1
V V
ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA8588J TDA8588AJ TDA8588BJ Note 1. Permanent output voltage of regulator 2 and output voltage of regulator 3, respectively. DBS37P DESCRIPTION plastic DIL-bent-SIL power package; 37 leads (lead length 6.8 mm) VERSION SOT725-1 REGULATOR 2 5V 5V 3.3 V REGULATOR 3 5V 3.3 V 3.3 V OUTPUT VOLTAGE(1)
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
BLOCK DIAGRAM
TDA8588J; TDA8588xJ
BUCAP
36
REGULATOR 2
37
REG2
BACKUP SWITCH
REFERENCE VOLTAGE
TEMPERATURE & LOAD DUMP PROTECTION VOLTAGE REGULATOR
VP
35
REGULATOR 1
30
REG1
TDA8588
REGULATOR 3
31
REG3
ENABLE LOGIC
REGULATOR 4
33
REG4
REGULATOR 5 Vreg2 SWITCH 1
34
REG5
29
SW1
SWITCH 2 40 s RESCAP 28
27
SW2
26 32 20 6 25 22 STANDBY/ MUTE I2C-BUS INTERFACE CLIP DETECT/ DIAGNOSTIC
RST GND VP1 VP2 DIAG
SDA SCL STB
2 4
IN1
11
MUTE
9
26 dB/ 20 dB
OUT1+ OUT1-
7 PROTECTION/ DIAGNOSTIC
IN2
15
MUTE
17
26 dB/ 20 dB
OUT2+ OUT2-
19 PROTECTION/ DIAGNOSTIC
IN3
12
MUTE
5
26 dB/ 20 dB
OUT3+ OUT3-
3 PROTECTION/ DIAGNOSTIC
IN4
14 VP
MUTE
21
26 dB/ 20 dB
OUT4+ OUT4-
23 PROTECTION/ DIAGNOSTIC
TEMPERATURE & LOAD DUMP PROTECTION AMPLIFIER 10 SVR 13 SGND ACGND 16 8 1 18 24
mdb586
PGND1 PGND3 PGND2/TAB PGND4
Fig.1 Block diagram.
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
PINNING SYMBOL PGND2/TAB SDA OUT3- SCL OUT3+ VP2 OUT1- PGND1 OUT1+ SVR IN1 IN3 SGND IN4 IN2 ACGND OUT2+ PGND3 OUT2- VP1 OUT4+ STB OUT4- PGND4 DIAG RST SW2 RESCAP SW1 REG1 REG3 GND REG4 REG5 VP BUCAP REG2 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 I2C-bus data input and output channel 3 negative output I2C-bus clock input channel 3 positive output power supply voltage 2 to amplifier channel 1 negative output power ground 1 channel 1 positive output half supply voltage filter capacitor channel 1 input channel 3 input signal ground channel 4 input channel 2 input AC ground channel 2 positive output power ground 3 channel 2 negative output power supply voltage 1 to amplifier channel 4 positive output
TDA8588J; TDA8588xJ
DESCRIPTION power ground 2 and connection for heatsink
standby or operating or mute mode select input channel 4 negative output power ground 4 diagnostic and clip detection output, active LOW reset output antenna switch; supplies unregulated power to car aerial motor reset delay capacitor amplifier switch; supplies unregulated power to amplifier(s) regulator 1 output; supply for audio part of radio and CD player regulator 3 output; supply for signal processor part (mechanical digital) of CD player combined voltage regulator, power and signal ground regulator 4 output; supply for mechanical part (mechanical drive) of CD player regulator 5 output; supply for display part of radio and CD player power supply to voltage regulator connection for backup capacitor regulator 2 output; supply voltage to microcontroller
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
PGND2/TAB 1 SDA 2 OUT3- 3 SCL 4 OUT3+ 5 VP2 6 OUT1- 7 PGND1 8 OUT1+ 9 SVR 10 IN1 11 IN3 12 SGND 13 IN4 14 IN2 15 ACGND 16 OUT2+ 17 PGND3 18 OUT2- 19 VP1 20 OUT4+ 21 STB 22 OUT4- 23 PGND4 24 DIAG 25 RST 26 SW2 27 RESCAP 28 SW1 29 REG1 30 REG3 31 GND 32 REG4 33 REG5 34 VP 35 BUCAP 36 REG2 37
001aaa258
TDA8588
Fig.2 Pin configuration.
2004 Feb 24
7
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
FUNCTIONAL DESCRIPTION The TDA8588 is a multiple voltage regulator combined with four independent audio power amplifiers configured in bridge tied load with diagnostic capability. The output voltages of all regulators except regulators 2 and 3 can be controlled via the I2C-bus. However, regulator 3 can be set to 0 V via the I2C-bus. The output voltage of regulator 2 (microcontroller supply) and the maximum output voltage of regulator 3 (mechanical digital and microcontroller supplies) can both be either 5 V or 3.3 V depending on the type number. The maximum output voltages of both regulators are fixed to avoid any risk of damaging the microcontroller that may occur during a disturbance of the I2C-bus. The amplifier diagnostic functions give information about output offset, load, or short-circuit. Diagnostic functions are controlled via the I2C-bus. The TDA8588 is protected against short-circuit, over-temperature, open ground and open VP connections. If a short-circuit occurs at the input or output of a single amplifier, that channel shuts down, and the other channels continue to operate normally. The channel that has a short-circuit can be disabled by the microcontroller via the appropriate enable bit of the I2C-bus to prevent any noise generated by the fault condition from being heard. Start-up At power on, regulator 2 will reach its final voltage when the backup capacitor voltage exceeds 5.5 V independently of the voltage on pin STB. When pin STB is LOW, the total quiescent current is low, and the I2C-bus lines are high impedance. When pin STB is HIGH, the I2C-bus is biased on and then the TDA8588 performs a power-on reset. When bit D0 of instruction byte IB1 is set, the amplifier is activated, bit D7 of data byte 2 (power-on reset occurred) is reset, and pin DIAG is no longer held LOW. Start-up and shut-down timing (see Fig.12) A capacitor connected to pin SVR enables smooth start-up and shut-down, preventing the amplifier from producing audible clicks at switch-on or switch-off. The start-up and shut-down times can be extended by increasing the capacitor value. If the amplifier is shut down using pin STB, the amplifier is muted, the regulators and switches are switched off, and the capacitor connected to pin SVR discharges. The low current standby mode is activated 2 seconds after pin STB goes LOW.
TDA8588J; TDA8588xJ
Power-on reset and supply voltage spikes (see Fig.13 and Fig.14) If the supply voltage drops too low to guarantee the integrity of the data in the I2C-bus latches, the power-on reset cycle will start. All latches will be set to a pre-defined state, pin DIAG will be pulled LOW to indicate that a power-on reset has occurred, and bit D7 of data byte 2 is also set for the same reason. When D0 of instruction byte 1 is set, the power-on flag resets, pin DIAG is released and the amplifier will then enter its start-up cycle. Diagnostic output Pin DIAG indicates clipping, thermal protection pre-warning of amplifier and voltage regulator sections, short-circuit protection, low and high battery voltage. Pin DIAG is an open-drain output, is active LOW, and must be connected to an external voltage via an external pull-up resistor. If a failure occurs, pin DIAG remains LOW during the failure and no clipping information is available. The microcontroller can read the failure information via the I2C-bus. AMPLIFIERS Muting A hard mute and a soft mute can both be performed via the I2C-bus. A hard mute mutes the amplifier within 0.5 ms. A soft mute mutes the amplifier within 20 ms and is less audible. A hard mute is also activated if a voltage of 8 V is applied to pin STB. Temperature protection If the average junction temperature rises to a temperature value that has been set via the I2C-bus, a thermal protection pre-warning is activated making pin DIAG LOW. If the temperature continues to rise, all four channels will be muted to reduce the output power (soft thermal clipping). The value at which the temperature mute control activates is fixed; only the temperature at which the thermal protection pre-warning signal occurs can be specified by bit D4 in instruction byte 3. If implementing the temperature mute control does not reduce the average junction temperature, all the power stages will be switched off (muted) at the absolute maximum temperature Tj(max). Offset detection Offset detection can only be performed when there is no input signal to the amplifiers, for instance when the external digital signal processor is muted after a start-up. The output voltage of each channel is measured and
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
compared with a reference voltage. If the output voltage of a channel is greater than the reference voltage, bit D2 of the associated data byte is set and read by the microcontroller during a read instruction. Note that the value of this bit is only meaningful when there is no input signal and the amplifier is not muted. Offset detection is always enabled. Speaker protection If one side of a speaker is connected to ground, a missing current protection is implemented to prevent damage to the speaker. A fault condition is detected in a channel when there is a mismatch between the power current in the high side and the power current in the low side; during a fault condition the channel will be switched off. The load status of each channel can be read via the I2C-bus: short to ground (one side of the speaker connected to ground), short to VP (one side of the speaker connected to VP), and shorted load. Line driver mode An amplifier can be used as a line driver by switching it to low gain mode. In normal mode, the gain between single-ended input and differential output (across the load) is 26 dB. In low gain mode the gain between single-ended input and differential output is 20 dB. Input and AC ground capacitor values The negative inputs to all four amplifier channels are combined at pin ACGND. To obtain the best performance for supply voltage ripple rejection and unwanted audible noise, the value of the capacitor connected to pin ACGND must be as close as possible to 4 times the value of the input capacitor connected to the positive input of each channel. Load detection DC-LOAD DETECTION When DC-load detection is enabled, during the start-up cycle, a DC-offset is applied slowly to the amplifier outputs, and the output currents are measured. If the output current of an amplifier rises above a certain level, it is assumed that there is a load of less than 6 and bit D5 is reset in the associated data byte register to indicate that a load is detected. Because the offset is measured during the amplifier start-up cycle, detection is inaudible and can be performed every time the amplifier is switched on.
TDA8588J; TDA8588xJ
AC-LOAD DETECTION AC-load detection can be used to detect that AC-coupled speakers are connected correctly during assembly. This requires at least 3 periods of a 19 kHz sine wave to be applied to the amplifier inputs. The amplifier produces a peak output voltage which also generates a peak output current through the AC-coupled speaker. The 19 kHz sine wave is also audible during the test. If the amplifier detects three current peaks that are greater than 550 mA, the AC-load detection bit D1 of instruction byte IB1 is set to logic 1. Three current peaks are counted to avoid false AC-load detection which can occur if the input signal is switched on and off. The peak current counter can be reset by setting bit D1 of instruction byte IB1 to logic 0. To guarantee AC-load detection, an amplifier current of more than 550 mA is required. AC-load detection will never occur with a current of less than 150 mA. Figure 3 shows which AC loads are detected at different output voltages. For example, if a load is detected at an output voltage of 2.5 V peak, the load is less than 4 . If no load is detected, the output impedance is more than 14 .
102
mrc331
Zo(load) ()
no load present
(1)
undefined 10
(2)
load present
1 0 2.5 5 7.5 10 Vo(peak) (V)
(1) IO(peak) = < 150 mA. (2) IO(peak) = > 550 mA.
Fig.3
Tolerance of AC-load detection as a function of output voltage.
LOAD DETECTION PROCEDURE 1. At start-up, enable the AC- or DC-load detection by setting D1 of instruction byte 1 to logic 1. 9
2004 Feb 24
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
2. After 250 ms the DC load is detected and the mute is released. This is inaudible and can be implemented each time the IC is powered on. 3. When the amplifier start-up cycle is completed (after 1.5 s), apply an AC signal to the input, and DC-load bits D5 of each data byte should be read and stored by the microcontroller. 4. After at least 3 periods of the input signal, the load status can be checked by reading AC-detect bits D4 of each data byte. The AC-load peak current counter can be reset by setting bit D1 of instruction byte IB1 to logic 0 and then to logic 1. Note that this will also reset the DC-load detection bits D5 in each data byte. Low headroom protection The normal DC output voltage of the amplifier is set to half the supply voltage and is related to the voltage on pin SVR. An external capacitor is connected to pin SVR to suppress power supply ripple. If the supply voltage drops (at vehicle engine start), the DC output voltage will follow slowly due to the affect of the SVR capacitor.
TDA8588J; TDA8588xJ
The headroom voltage is the voltage required for correct operation of the amplifier and is defined as the voltage difference between the level of the DC output voltage before the VP voltage drop and the level of VP after the voltage drop (see Fig.4). At a certain supply voltage drop, the headroom voltage will be insufficient for correct operation of the amplifier. To prevent unwanted audible noises at the output, the headroom protection mode will be activated (see Fig.4). This protection discharges the capacitors connected to pins SVR and ACGND to increase the headroom voltage.
V (V)
14
VP
vehicle engine start
headroom voltage SVR voltage 8.4 7 amplifier DC output voltage
t (sec)
mdb515
Fig.4 Amplifier output during supply voltage.
2004 Feb 24
10
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
VOLTAGE REGULATORS The voltage regulator section contains: * Four switchable regulators and one permanent active regulator * Two power switches with loss-of-ground protection * Reset push-pull output * Backup functionality. The quiescent current condition has a very low current level of 150 A typical with only regulator 2 active. The TDA8588 uses low dropout voltage regulators for use in low voltage applications. All of the voltage regulators except for the standby regulator can be controlled via the I2C-bus. The voltage regulator section of this device has two power switches which are capable of delivering unregulated 400 mA continuous current, and has several fail-safe protection modes. It conforms to peak transient tests and protects against continuous high voltage (24 V), short-circuits and thermal stress. A reset warning signal is asserted if regulator 2 is out of regulation. Regulator 2 will try to maintain output for as long as possible even if a thermal shut-down or any other fault condition occurs. During overvoltage stress conditions, all outputs except regulator 2 will switch off and the device will be able to supply a minimum current for an indefinite amount of time sufficient for powering the memory of a microcontroller. Provision is made for an external reserve supply capacitor to be connected to pin BUCAP which can store enough energy to allow regulator 2 to supply a microcontroller for a period long enough for it to prepare for a loss-of-voltage. Regulator 2 Regulator 2 is intended to supply the microcontroller and has a low quiescent current. This supply cannot be shut down in response to overvoltage stress conditions, and is not I2C-bus controllable to prevent the microcontroller from being damaged by overvoltage which could occur during a disturbance of the I2C-bus. This supply will not shut down during load dump transients or during a high thermal-protection condition. Backup capacitor
TDA8588J; TDA8588xJ
The backup capacitor is used as a backup supply for the regulator 2 output when the battery supply voltage (VP) cannot support the regulator 2 voltage. Backup function The backup function is implemented by a switch function, which behaves like an ideal diode between pins VP and BUCAP; the forward voltage of this ideal diode depends on the current flowing through it. The backup function supplies regulator 2 during brief periods when no supply voltage is present on pin VP. It requires an external capacitor to be connected to pin BUCAP and ground. When the supply voltage is present on pin VP this capacitor will be charged to a level of VP - 0.3 V. When the supply voltage is absent from pin VP, this charge can then be used to supply regulator 2 for a brief period (tbackup) calculated using the formula: V P - ( V O ( REG2 ) - 0.5 ) t backup = C backup x R L x -------------------------------------------------------- - V O ( REG2 ) Example: VP = 14.4 V, VO(REG2) = 5 V, RL = 1 k and Cbackup = 100 F provides a tbackup of 177 ms. When an overvoltage condition occurs, the voltage on pin BUCAP is limited to approximately 24 V; see Fig.5.
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
V (V)
VP
VBUCAP
VO(REG2)
t (sec) tbackup out of regulation
mdb512
V P - V O ( REG2 ) - 0.5 t backup = C backup x --------------------------------------------------- - IL
Fig.5 Backup capacitor function.
Reset output A reset pulse is generated at pin RST when the output voltage of regulator 2 rises above the reset threshold value. The reset output is a push-pull output that both sources and sinks current. The output voltage can switch between ground and VO(REG2), and operates at a low regulator 2 voltage or VBUCAP. The RST signal is controlled by a low-voltage detection circuit which, when activated, pulls pin RST LOW (reset active) when VO(REG2) is Vth(rst). If VO(REG2) Vth(rst), pin RST goes HIGH. The reset pulse is delayed by 40 s internally. To extend the delay and to prevent oscillations occurring at the threshold voltage, an external capacitor can be connected to pin RESCAP. Note that a reset pulse is not generated when VO(REG2) falls below the reset threshold value. Reset delay capacitor A Reset Delay Capacitor (RDC) connected to pin RESCAP can be used to extend the delay period of the reset pulse and to ensure that a clean reset signal is sent to the microcontroller. The RDC is charged by a current source. The reset output (pin RST) will be released (pin RST goes HIGH) when the RDC voltage crosses the RDC threshold value.
Power switches There are two power switches that provide an unregulated DC voltage output for amplifiers and an aerial motor respectively. The switches have internal protection for over-temperature conditions and are activated by setting bits D2 and D3 of instruction byte IB1 to logic 1. The regulated outputs will supply pulsed current loads that can contaminate the line with high frequency noise, so it is important to prevent any cross-coupling between the regulated outputs, particularly with the 8.3 V audio supply, and the unregulated outputs. In the ON state, the switches have a low impedance to the battery voltage. When the battery voltage is higher than 22 V, the switches are switched off. When the battery voltage is below 22 V the switches are set to their original condition.
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Protection All regulator and switch outputs are fully protected by foldback current limiting against load dumps and short-circuits; see Fig.6. During a load dump all regulator outputs, except the output of regulator 2, will go low. The power switches can withstand `loss-of-ground'. This means that if pin GND becomes disconnected, the switch is protected by automatically connecting its outputs to ground.
TDA8588J; TDA8588xJ
Temperature protection If the junction temperature of a regulator becomes too high, the amplifier(s) are switched off to prevent unwanted noise signals being audible. A regulator junction temperature that is too high is indicated by pin DIAG going LOW and is also indicated by setting bit D6 in data byte 2. If the junction temperature of the regulator continues to rise and reaches the maximum temperature protection level, all regulators and switches will be disabled except regulator 2.
handbook, full pagewidth
VO(REGn)
Isc
Ilimit
IO(REGn)
MDB513
Fig.6 Foldback current protection.
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
I2C-BUS SPECIFICATION
TDA8588J; TDA8588xJ
handbook, halfpage
0 = write 1 = read LSB
MSB
1
1
0
1
1
0
0
R/W
MDB516
Fig.7 Address byte.
If address byte bit R/W = 0, the TDA8588 expects 3 instruction bytes: IB1, IB2 and IB3; see Table 1 to Table 6. After a power-on, all instruction bits are set to zero. If address byte bit R/W = 1, the TDA8588 will send 4 data bytes to the microcontroller: DB1, DB2, DB3 and DB4; see Table 7 to Table 10.
SDA
SDA
SCL S START condition P STOP condition
SCL
MBA608
Fig.8 Definition of start and stop conditions.
SDA
SCL data line stable; data valid change of data allowed
MBA607
Fig.9 Bit transfer.
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
I2C-WRITE SCL 1 2 7 8 9 1 2 7 8 9
SDA
MSB
MSB - 1
LSB + 1
ACK
MSB
MSB - 1
LSB + 1
LSB
ACK
S
ADDRESS
W
A
WRITE DATA
A
P
To stop the transfer, after the last acknowledge (A) a stop condition (P) must be generated I2C-READ SCL 1 2 7 8 9 1 2 7 8 9
SDA
MSB
MSB - 1
LSB + 1
ACK
MSB
MSB - 1
LSB + 1
LSB
ACK
S
ADDRESS
R
A
READ DATA
A
P
: generated by master (microcontroller) : generated by slave (TDA8588) S P A R/W : start : stop : acknowledge : read / write
To stop the transfer, the last byte must not be acknowledged and a stop condition (P) must be generated
mce641
Fig.10 I2C-bus read and write modes.
2004 Feb 24
15
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Table 1 BIT D7 D6 D5 D4 D3 SW2 control 0 = SW2 off 1 = SW2 on D2 SW1 control 0 = SW1 off 1 = SW1 on D1 AC- or DC-load detection switch 0 = AC- or DC-load detection off; resets DC-load detection bits and AC-load detection peak current counter 1 = AC- or DC-load detection on D0 amplifier start enable (clear power-on reset flag; D7 of DB2) 0 = amplifier OFF; pin DIAG remains LOW 1 = amplifier ON; when power-on occurs, bit D7 of DB2 is reset and pin DIAG is released Table 2 Regulator 5 (display) output voltage control BIT OUTPUT (V) D7 0 0 0 0 0 0 0 0 1 1 D6 0 0 0 0 1 1 1 1 0 0 D5 0 0 1 1 0 0 1 1 0 0 D4 0 1 0 1 0 1 0 1 0 1 0 (off) 6.0 7.0 8.2 9.0 9.5 10.0 10.4 12.5 VP - 1 (switch) D3 0 0 1 1 Table 5 Table 4 D0 D3 D2 D1 Instruction byte IB1 DESCRIPTION regulator 5 output voltage control (see Table 2) Table 3 BIT D7 D6 D5 D4
TDA8588J; TDA8588xJ
Instruction byte IB2 DESCRIPTION regulator 4 output voltage control (see Table 4)
regulator 3 (mechanical digital) control 0 = regulator 3 off 1 = regulator 3 on regulator 1 output voltage control (see Table 5) soft mute all amplifier channels (mute delay 20 ms) 0 = mute off 1 = mute on hard mute all amplifier channels (mute delay 0.4 ms) 0 = mute off 1 = mute on Regulator 4 (mechanical drive) output voltage control BIT OUTPUT (V)
D7 0 0 0 0 1
D6 0 0 1 1 0
D5 0 1 0 1 0 0 (off) 5 6 7 8.6
Regulator 1 (audio) output voltage control BIT OUTPUT (V) D2 0 1 0 1 0 (off) 8.3 8.5 8.7
2004 Feb 24
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Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Table 6 BIT D7 Instruction byte IB3 DESCRIPTION clip detection level 0 = 4 % detection level 1 = 1 % detection level D6 amplifier channels 1 and 2 gain select 0 = 26 dB gain (normal mode) 1 = 20 dB gain (line driver mode) D5 amplifier channels 3 and 4 gain select 0 = 26 dB gain (normal mode) 1 = 20 dB gain (line driver mode) D4 amplifier thermal protection pre-warning 0 = warning at 145 C 1 = warning at 122 C D3 disable channel 1 0 = enable channel 1 1 = disable channel 1 D2 disable channel 2 0 = enable channel 2 1 = disable channel 2 D1 disable channel 3 0 = enable channel 3 1 = disable channel 3 D0 disable channel 4 0 = enable channel 4 1 = disable channel 4 D0 D1 D2 D3 D4 D5 D6 Table 7 BIT D7
TDA8588J; TDA8588xJ
Data byte DB1 DESCRIPTION amplifier thermal protection pre-warning 0 = no warning 1 = junction temperature above pre-warning level amplifier maximum thermal protection 0 = junction temperature below 175 C 1 = junction temperature above 175 C channel 4 DC load detection 0 = DC load detected 1 = no DC load detected channel 4 AC load detection 0 = no AC load detected 1 = AC load detected channel 4 load short-circuit 0 = normal load 1 = short-circuit load channel 4 output offset 0 = no output offset 1 = output offset channel 4 VP short-circuit 0 = no short-circuit to VP 1 = short-circuit to VP channel 4 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground
2004 Feb 24
17
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Table 8 BIT D7 Data byte DB2 DESCRIPTION Power-on reset occurred or amplifier status 0 = amplifier on 1 = POR has occurred; amplifier off D6 regulator thermal protection pre-warning 0 = no warning 1 = regulator temperature too high; amplifier off D5 channel 3 DC load detection 0 = DC load detected 1 = no DC load detected D4 channel 3 AC load detection 0 = no AC load detected 1 = AC load detected D3 channel 3 load short-circuit 0 = normal load 1 = short-circuit load D2 channel 3 output offset 0 = no output offset 1 = output offset D1 channel 3 VP short-circuit 0 = no short-circuit to VP 1 = short-circuit to VP D0 channel 3 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground D0 D1 D2 D3 D4 Table 9 BIT D7 D6 D5 - -
TDA8588J; TDA8588xJ
Data byte DB3 DESCRIPTION
channel 2 DC load detection 0 = DC load detected 1 = no DC load detected channel 2 AC load detection 0 = no AC load detected 1 = AC load detected channel 2 load short-circuit 0 = normal load 1 = short-circuit load channel 2 output offset 0 = no output offset 1 = output offset channel 2 VP short-circuit 0 = no short-circuit to VP 1 = short-circuit to VP channel 2 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground
2004 Feb 24
18
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Table 10 Data byte DB4 BIT D7 D6 D5 - - channel 1 DC load detection 0 = DC load detected 1 = no DC load detected D4 channel 1 AC load detection 0 = no AC load detected 1 = AC load detected D3 channel 1 load short-circuit 0 = normal load 1 = short-circuit load D2 channel 1 output offset 0 = no output offset 1 = output offset D1 channel 1 VP short-circuit 0 = no short-circuit to VP 1 = short-circuit to VP D0 channel 1 ground short-circuit 0 = no short-circuit to ground 1 = short-circuit to ground DESCRIPTION
TDA8588J; TDA8588xJ
2004 Feb 24
19
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL VP supply voltage PARAMETER operating not operating
TDA8588J; TDA8588xJ
CONDITION
MIN. MAX. UNIT - -1 0 0 0 18 +50 50 7 13 V V V V V
with load dump protection VSDA, VSCL voltage on pins SDA and SCL VIN, VSVR, VACGND, VDIAG VSTB IOSM IORM Vsc Vrp Ptot Tj Tstg Tamb Vesd operating voltage on pins INn, SVR, ACGND and DIAG operating
voltage on pin STB non-repetitive peak output current repetitive peak output current AC and DC short-circuit voltage reverse polarity voltage total power dissipation junction temperature storage temperature ambient temperature electrostatic discharge voltage
operating
0 - -
24 10 6 18 -18 80 150 +85 200
V A A V V W C C V
short-circuit of output pins across loads and to ground or supply voltage regulator only Tcase = 70 C
- - - - -55 -40
+150 C 2000 V
note 1 note 2
- -
Notes 1. Human body model: Rs = 1.5 k; C = 100 pF; all pins have passed all tests to 2500 V to guarantee 2000 V, according to class II. 2. Machine model: Rs = 10 ; C = 200 pF; L = 0.75 mH; all pins have passed all tests to 250 V to guarantee 200 V, according to class II.
2004 Feb 24
20
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
THERMAL CHARACTERISTICS SYMBOL Rth(j-a) Rth(j-c) PARAMETER thermal resistance from junction to ambient thermal resistance from junction to case CONDITIONS in free air see Fig.11
TDA8588J; TDA8588xJ
VALUE 40 0.75
UNIT K/W K/W
Virtual junction
handbook, halfpage
Amplifier 0.5 K/W
Voltage regulator 1 K/W
0.2 K/W Case
MDB514
Fig.11 Equivalent thermal resistance network.
QUALITY SPECIFICATION In accordance with "General Quality Specification for Integrated Circuits SNW-FQ-611D".
2004 Feb 24
21
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
CHARACTERISTICS
TDA8588J; TDA8588xJ
Amplifier section Tamb = 25 C; VP = 14.4 V; RL = 4 ; measured in the test circuit Fig.26; unless otherwise specified. SYMBOL PARAMETER RL = 4 RL = 2 Iq(tot) Istb VO VP(mute) Vhr VPOR VOO Vstb Voper Vmute II twake total quiescent current standby current DC output voltage low supply voltage mute headroom voltage power-on reset voltage output offset voltage when headroom protection is activated; see Fig.4 see Fig.13 mute mode and power on no load CONDITION MIN. TYP. MAX. UNIT
Supply voltage behaviour VP1, VP2 operating supply voltage 8 8 - - - 6.5 - - -100 - 2.5 8 VSTB = 5 V via pin STB; see Fig.12 - - 14.4 14.4 280 10 7.2 7 1.4 5.5 0 - - - 4 18 16 400 50 - 8 - - +100 V V mA A V V V V mV
Mode select (pin STB) standby mode voltage operating mode voltage mute mode voltage input current 1.3 5.5 VP 25 V V V A s
Start-up, shut-down and mute timing wake-up time from standby before first I2C-bus transmission is recognised time from amplifier switch-on to mute release delay from mute to on 300 500
tmute(off) td(mute-on)
via I2C-bus (IB1 bit D0); CSVR = 22 F; see Fig.12 soft mute; via I2C-bus (IB2 bit D1 = 1 to 0) hard mute; via I2C-bus (IB2 bit D0 = 1 to 0) via pin STB; VSTB = 4 to 8 V
- 10 10 10 10 - - - 2.3
250 25 25 25 25 0.4 0.4 - - -
- 40 40 40 40 1 1
ms ms ms ms ms ms ms
td(on-mute)
delay from on to mute
soft mute; via (IB2 bit D1 = 0 to 1)
I2C-bus
hard mute; via I2C-bus (IB2 bit D0 = 0 to 1) via pin STB; VSTB = 4 to 8 V I2C-bus interface VIL VIH VOL LOW-level input voltage on pins SCL and SDA HIGH-level input voltage on pins SCL and SDA LOW-level output voltage on pin SDA IL = 3 mA
1.5 5.5 0.4
V V V
-
2004 Feb 24
22
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL fSCL Diagnostic VDIAG Vo(offset) THDclip Tj(warn) Tj(mute) Tj(off) Zo(load) Zo(open) Io(load) Io(open) Amplifier Po output power diagnostic pin LOW output voltage output voltage when offset is detected THD clip detection level average junction temperature for pre-warning average junction temperature for 3 dB muting average junction temperature when all outputs are switched off impedance when a DC load is detected impedance when an open DC load is detected amplifier current when an AC load is detected amplifier current when an open AC load is detected IB3 bit D7 = 0 IB3 bit D7 = 1 IB3 bit D4 = 0 IB3 bit D4 = 1 VIN = 0.05 V PARAMETER SCL clock frequency CONDITION
TDA8588J; TDA8588xJ
MIN. -
TYP. - - 2 4 1 145 122 160 175 - - - -
MAX. 400
UNIT kHz
fault condition; IDIAG = 200 A
- 1.5 - - 135 112 150 165 - 500 550 -
0.8 2.5 - - 155 132 170 185 6 - - 150
V V % % C C C C mA mA
RL = 4 ; VP = 14.4 V; THD = 0.5 % 20 RL = 4 ; VP = 14.4 V; THD = 10 % RL = 4 ; VP = 14.4 V; VIN = 2 V RMS square wave (maximum power) RL = 4 ; VP = 15.2 V; VIN = 2 V RMS square wave (maximum power) RL = 2 ; VP = 14.4 V; THD = 10 % RL = 2 ; VP = 14.4 V; VIN = 2 V RMS square wave (maximum power) 27 44
21 28 46
- - -
W W W
49
52
-
W
RL = 2 ; VP = 14.4 V; THD = 0.5 % 37 51 83
41 55 87
- - -
W W W
THD
total harmonic distortion
Po = 1 W to 12 W; f = 1 kHz; RL = 4 Po = 1 W to 12 W; f = 10 kHz Po = 4 W; f = 1 kHz line driver mode; Vo = 2 V (RMS); f = 1 kHz; RL = 600
- - - -
0.01 0.2 0.01 0.01
0.1 0.5 0.03 0.03
% % % %
2004 Feb 24
23
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL cs SVRR CMRR PARAMETER channel separation (crosstalk) supply voltage ripple rejection common mode ripple rejection CONDITION
TDA8588J; TDA8588xJ
MIN. 50 - 55 40
TYP. 60 80 70 70
MAX. - - - -
UNIT dB dB dB dB
f = 1 Hz to 10 kHz; Rsource = 600 Po = 4 W; f = 1 kHz f = 100 Hz to 10 kHz; Rsource = 600 amplifier mode; Vcommon = 0.3 V (p-p); f = 1 kHz to 3 kHz; Rsource = 0 f = 1 kHz filter 20 Hz to 22 kHz; Rsource = 600 filter 20 Hz to 22 kHz; Rsource = 600 single-ended in to differential out single-ended in to differential out CIN = 220 nF VO(on)/VO(mute) VIN = 1 V (RMS) -1 dB; THD = 1 %
Vcm(max)(rms) Vn(o)(LN) Vn(o)(amp) Gv(amp) Gv(LN) Zi mute Vo(mute) Bp
maximum common mode voltage level (rms value) noise output voltage in line driver mode noise output voltage in amplifier mode voltage gain in amplifier mode voltage gain in line driver mode input impedance mute attenuation output voltage mute power bandwidth
- - - 25 19 55 80 - -
- 25 50 26 20 70 90 70 20
0.6 35 70 27 21 - - - -
V V V dB dB k dB V kHz
Voltage regulator section Tamb = 25 C; VP = 14.4 V; measured in the test circuit Fig.26; unless otherwise specified. SYMBOL Supply VP supply voltage regulator 1, 3, 4 and 5 on regulator 2 switched on in regulation overvoltage for shut-down Iq(tot) total quiescent supply current standby mode; note 1 4 6.3 18.1 - - - 22 150 - 50 - 190 V V V A 10.0 14.4 18 V PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Reset output (push-pull stage, pin RST) VREG2(th)(r) VREG2(th)(f) Isink(L) Isource(H) tr tf rising threshold voltage of regulator 2 falling threshold voltage of regulator 2 LOW-level sink current HIGH-level source current rise time fall time VP is rising; IO(REG2) = 50 mA VP is falling; IO(REG2) = 50 mA VRST 0.8 V VRST = VO(REG2) - 0.5 V; VP = 14.4 V note 2 note 2 VO(REG2) - 0.2 VO(REG2) - 0.25 1 200 - - VO(REG2) - 0.1 VO(REG2) - 0.15 - 600 2 10 VO(REG2) - 0.04 VO(REG2) - 0.1 - - 50 50 V V mA A s s
2004 Feb 24
24
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL PARAMETER CONDITIONS MIN.
TDA8588J; TDA8588xJ
TYP.
MAX.
UNIT A mA V V s ms
Reset delay (pin RESCAP) Ich Idch Vth(rst) charge current discharge current reset signal threshold voltage reset signal delay VRESCAP = 0 V VRESCAP = 3 V; VP 4.3 V TDA8588AJ and TDA8588J TDA8588BJ td(rst) without CRESCAP; note 3 CRESCAP = 47 nF; note 3; see Fig.15 Regulator 1: REG1 (audio; IO = 5 mA) VO(REG1) output voltage 0.5 mA IO 400 mA; 12 V < VP < 18 V; IB2[D3:D2] = 01 IB2[D3:D2] = 10 IB2[D3:D2] = 11 VO(LN) VO(load) SVRR Vdrop line regulation voltage load regulation voltage supply voltage ripple rejection dropout voltage 12 V VP 18 V 5 mA IO 400 mA fripple = 120 Hz; Vripple = 2 V (p-p) VP = 7.5 V; note 4 IO = 200 mA IO = 400 mA Ilimit Isc current limit short-circuit current VO 7 V; note 5 RL 0.5 ; note 6 0.5 mA IO 350 mA; 10 V VP 18 V TDA8588AJ and TDA8588J TDA8588BJ VO(LN) VO(load) SVRR line regulation voltage load regulation voltage supply voltage ripple rejection 10 V VP 18 V 0.5 mA IO 300 mA fripple = 120 Hz; Vripple = 2 V (p-p) 4.75 3.1 - - 40 5.0 3.3 3 - 50 5.25 3.5 50 100 - V V mV mV dB - - 400 70 0.4 0.6 700 190 0.8 2.5 - - V V mA mA 7.9 8.1 8.3 - - 50 8.3 8.5 8.7 - - 60 8.7 8.9 9.1 50 100 - V V V mV mV dB 1 1 2.5 1.6 - 15 4 7 3 2.1 40 35 8 - 3.5 2.6 - 100
Regulator 2: REG2 (microprocessor; IO = 5 mA) VO(REG2) output voltage
2004 Feb 24
25
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL Vdrop PARAMETER dropout voltage CONDITIONS IO = 200 mA VBUCAP = 4.75 V; note 7 TDA8588AJ and TDA8588J TDA8588BJ IO = 350 mA; VBUCAP = 4.75 V; note 7 TDA8588AJ and TDA8588J TDA8588BJ Ilimit Isc current limit short-circuit current VO 2.8 V; note 5 RL 0.5 ; note 6 0.5 mA IO 300 mA; 10 V VP 18 V TDA8588AJ and TDA8588BJ TDA8588J VO(LN) VO(load) SVRR Vdrop line regulation voltage load regulation voltage supply voltage ripple rejection dropout voltage 10 V VP 18 V 0.5 mA IO 300 mA fripple = 120 Hz; Vripple = 2 V (p-p) VP = 4.75 V; IO = 200 mA; note 4 TDA8588AJ and TDA8588BJ TDA8588J VP = 4.75 V; IO = 300 mA; note 4 TDA8588AJ and TDA8588BJ TDA8588J Ilimit Isc current limit short-circuit current VO 2.8 V; note 5 RL 0.5 ; note 6 0.5 mA IO 800 mA; 10 V VP 18 V IB2[D7:D5] = 001 IB2[D7:D5] = 010 IB2[D7:D5] = 011 IB2[D7:D5] = 100 VO(LN) line regulation voltage 10 V VP 18 V 4.75 5.7 6.6 8.1 - - - 400 135 - - 3.1 4.75 - - 50 - - 400 160 - - MIN.
TDA8588J; TDA8588xJ
TYP.
MAX.
UNIT
0.5 1.75
0.8 2
V V
0.5 1.75 1000 300
1.3 2.7 - -
V V mA mA
Regulator 3: REG3 (mechanical digital; IO = 5 mA) VO(REG3) output voltage
3.3 5.0 3 - 65
3.5 5.25 50 100 -
V V mV mV dB
1.45 0.4
1.65 0.8
V V
1.45 0.4 700 210
1.65 1.5 - -
V V mA mA
Regulator 4: REG4 (mechanical drive; IO = 5 mA) VO(REG4) output voltage
5.0 6.0 7.0 8.6 3
5.25 6.3 7.4 9.1 50
V V V V mV
2004 Feb 24
26
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL VO(load) SVRR Vdrop IO(peak) Ilimit Isc PARAMETER load regulation voltage supply voltage ripple rejection dropout voltage peak output current limit current short-circuit current CONDITIONS 0.5 mA IO 400 mA fripple = 120 Hz; Vripple = 2 V (p-p) VP = VO(REG4) - 0.5 V; IO = 800 mA; note 4 t 3 s; VO = 4 V VO 4 V; t 100 ms; VP 11.5 V; note 5 RL 0.5 ; note 6 0.5 mA IO 400 mA 10 V VP 18 V; IB1[D7:D4] = 0001 10 V VP 18 V; IB1[D7:D4] = 0010 10 V VP 18 V; IB1[D7:D4] = 0011 10.5 V VP 18 V; IB1[D7:D4] = 0100 11 V VP 18 V; IB1[D7:D4] = 0101 11.5 V VP 18 V; IB1[D7:D4] = 0110 13 V VP 18 V; IB1[D7:D4] = 0111 14.2 V VP 18 V; IB1[D7:D4] = 1000 12.5 V VP 18 V; IB1[D7:D4] = 1001 VO(LN) VO(load) SVRR Vdrop line regulation voltage load regulation voltage supply voltage ripple rejection dropout voltage 10 V VP 18 V 0.5 mA IO 400 mA fripple = 120 Hz; Vripple = 2 V (p-p) VP = VO(REG5) - 0.5 V; note 4 IO = 300 mA IO = 400 mA Ilimit Isc Vdrop(SW1) Ilimit 2004 Feb 24 limit current short-circuit current VO 5.5 V; note 5 RL 0.5 ; note 6 IO = 300 mA IO = 400 mA limit current V 8.5 V 27 - - 400 100 - - 0.5 5.7 6.65 7.8 8.55 9.0 9.5 9.9 11.8 VP - 1 - - 50 - 50 - 1 1.5 240 MIN.
TDA8588J; TDA8588xJ
TYP. - 65 0.6 1.5 2 400 - 1 - - -
MAX. 100
UNIT mV dB V A A mA
Regulator 5: REG5 (display; IO = 5 mA) VO(REG5) output voltage 6.0 7.0 8.2 9.0 9.5 10.0 10.4 12.5 - 3 - 60 6.3 7.37 8.6 9.45 10.0 10.5 10.9 13.2 - 50 100 - V V V V V V V V V mV mV dB
0.4 0.5 950 200
0.8 2.3 - - 0.8 1.1 -
V V mA mA
Power switch 1: SW1 (antenna) dropout voltage 0.6 0.6 1 V V A
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SYMBOL PARAMETER CONDITIONS - - 0.5 MIN.
TDA8588J; TDA8588xJ
TYP.
MAX.
UNIT
Power switch 2: SW2 (amplifier) Vdrop(SW2) Ilimit IDC(BU) Vclamp(BU) Vdrop Notes 1. The quiescent current is measured in standby mode when RL = . 2. The rise and fall times are measured with a 50 pF load capacitor. 3. The reset delay time depends on the value of the reset delay capacitor: C RESCAP 3 t d ( rst ) = ------------------------ x V th ( rst ) = C RESCAP x ( 750 x 10 ) [ s ] I ch 4. The dropout voltage of a regulator is the voltage difference between VP and VO(REGn). 5. At current limit, VO(REGn) is held constant (see Fig.6). 6. The foldback current protection limits the dissipation power at short-circuit (see Fig.6). 7. The dropout voltage of regulator 2 is the voltage difference between VBUCAP and VO(REG2). dropout voltage limit current IO = 300 mA IO = 400 mA VO 8.5 V VBUCAP 6 V VP = 30 V; IO(REG2) = 100 mA IO = 500 mA; (VP - VBUCAP) Backup switch continuous current clamping voltage dropout voltage 0.4 - - 1.5 24 0.6 - 28 0.8 A V V 0.6 0.6 1 0.8 1.1 - V V A
2004 Feb 24
28
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
Vp
DIAG
VO(REG3) Regulator switched off when amplifier is completely muted
Amplifier status DB2 bit D7 IB1 bit D0 IB2 bit D4 twake STB
SVR
tmute(off) Soft mute
Amplifier output
Soft mute
mrc350
Fig.12 Start-up and shut-down timing.
2004 Feb 24
29
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
handbook, full pagewidth
VO (V)
Vp
14.4
Headroom protection activated: 1) fast mute 2) discharge of SVR Low Vp mute activated
8.8 8.6 7.2 Low Vp mute released SVR voltage 3.5 Headroom voltage Output voltage
DIAG
DB2 bit D7
VO(REG3)
MRC348
Fig.13 Low VP behaviour at VP > 5.5 V.
2004 Feb 24
30
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
VO (V) 14.4
Vp
Low Vp mute activated
POR activated 8.8 8.6 7.2 5.5 3.5 SVR voltage
DIAG
DB2 bit D7
POR has occured
VO(REG3)
mrc349
Fig.14 Low VP behaviour at VP < 5.5 V.
2004 Feb 24
31
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
V (V)
VP
Vth(rst) VO(REG2) VRST
t (sec) td(rst)
mdb511
Fig.15 Reset delay function.
2004 Feb 24
32
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Performance diagrams THD AS A FUNCTION OF OUTPUT POWER Po AT DIFFERENT FREQUENCIES
TDA8588J; TDA8588xJ
102 handbook, full pagewidth THD (%) 10
MRC345
1
10-1
(1)
10-2
(2) (3)
10-3 10-2
10-1
1
10
Po (W)
102
(1) f = 10 kHz. (2) f = 1 kHz. (3) f = 100 Hz.
VP = 14.4 V. RL = 4 .
Fig.16 THD as a function of Po.
2004 Feb 24
33
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
THD AS A FUNCTION OF FREQUENCY AT DIFFERENT OUTPUT POWERS
TDA8588J; TDA8588xJ
handbook, full pagewidth
10
MRC344
THD (%) 1
10-1
10-2
(1) (2)
10-3 10-2
10-1
1
10
f (kHz)
102
(1) Po = 1 W. (2) Po = 10 W.
VP = 14.4 V. RL = 4 .
Fig.17 THD as a function of frequency.
2004 Feb 24
34
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
LINE DRIVER MODE
TDA8588J; TDA8588xJ
MRC329
handbook, full pagewidth
1
THD (%)
10-1
10-2
10-3 10-1
1
10
Vo(rms)
(V)
102
VP = 14.4 V. RL = 600 . f = 1 kHz.
Fig.18 THD as a function of Vo in balanced line driver mode.
2004 Feb 24
35
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
OUTPUT POWER AS A FUNCTION OF FREQUENCY AT DIFFERENT THD LEVELS
TDA8588J; TDA8588xJ
handbook, full pagewidth
30
MRC330
Po (W) 28
(1)
26
(2)
24
22
(3)
20 10-2
10-1
1
10
f (kHz)
102
(1) THD = 10 %. (2) THD = 5 %. (3) THD = 0.5 %.
VP = 14.4 V.
Fig.19 Po as a function of frequency; RL = 4 .
2004 Feb 24
36
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
handbook, full pagewidth
60
MRC335
Po (W)
(1)
55
(2)
50
45
(3)
40
35 10-2
10-1
1
10
f (kHz)
102
(1) THD = 10 %. (2) THD = 5 %. (3) THD = 0.5 %.
VP = 14.4 V.
Fig.20 Po as a function of frequency; RL = 2 .
2004 Feb 24
37
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
OUTPUT POWER (PO) AS A FUNCTION OF SUPPLY VOLTAGE (VP)
TDA8588J; TDA8588xJ
100 Po (W) 80
001aaa283
60
(1)
40
(2) (3)
20
0 8 10 12 14 16 18 VP (V) 20
(1) Maximum power. (2) THD = 10 %. (3) THD = 0.5 %.
f = 1 kHz.
Fig.21 Po as a function of supply voltage; RL = 4 .
2004 Feb 24
38
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
handbook, full pagewidth
100
MRC332
Po (W) 80
(1)
60
(2)
(3)
40
20
0 8 12 16 Vp (V) 20
(1) Maximum power. (2) THD = 10 %. (3) THD = 0.5 %.
f = 1 kHz.
Fig.22 Po as a function of supply voltage; RL = 2 .
2004 Feb 24
39
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SUPPLY VOLTAGE RIPPLE REJECTION IN OPERATING AND MUTE MODES
TDA8588J; TDA8588xJ
handbook, full pagewidth
80
MRC333
SVRR (dB) 76
72
(1)
68
(2)
64
60 10-1
1
f (kHz)
10
VP = 14.4 V. RL = 4 . Vripple = 2 V (p-p). Rsource = 600 .
(1) Operating mode. (2) Mute mode.
Fig.23 SVRR as a function of frequency.
2004 Feb 24
40
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
CHANNEL SEPARATION AS A FUNCTION OF FREQUENCY
TDA8588J; TDA8588xJ
handbook, full pagewidth
100
MRC351
cs (dB) 90
80
70
60
50 10-2
10-1
1
10
f (kHz)
102
VP = 14.4 V. RL = 4 . Po = 4 W. Rsource = 600 .
Fig.24 Channel separation.
2004 Feb 24
41
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
POWER DISSIPATION AND EFFICIENCY
TDA8588J; TDA8588xJ
handbook, full pagewidth
50
MRC342
Ptot (W) 40
30
20
10
0 0 10 20 Po (W) 30
VP = 14.4 V. RL = 4 . f = 1 kHz.
Fig.25 Amplifier dissipation as a function of output power; all channels driven.
2004 Feb 24
42
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
handbook, full pagewidth
100
MRC343
(%) 80
60
40
20
0 0 8 16 24 32 Po (W) 40
VP = 14.4 V. RL = 4 . f = 1 kHz.
Fig.26 Amplifier efficiency as a function of output power; all channels driven.
2004 Feb 24
43
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
APPLICATION AND TEST INFORMATION
TDA8588J; TDA8588xJ
BUCAP REGULATOR 2
1000 F (16 V) 220 nF
37 REG2
10 F (50 V) 100 nF
microcontroller
36 TEMPERATURE & LOAD DUMP PROTECTION VOLTAGE REGULATOR
BACKUP SWITCH
REFERENCE VOLTAGE
14.4 V
220 F (16 V) 220 nF
VP
35
REGULATOR 1
30 REG1
10 F (50 V) 100 nF
audio
TDA8588
REGULATOR 3
31 REG3
10 F (50 V) 100 nF
mechanical digital
ENABLE LOGIC
REGULATOR 4
33 REG4
10 F (50 V) 100 nF
mechanical drive
REGULATOR 5 Vreg2 SWITCH 1
34 REG5
10 F (50 V) 100 nF
display
29 SW1
10 F (50 V) 100 nF
amplifiers
40 s RESCAP 47 nF 28
SWITCH 2
27 SW2
10 F (50 V) 100 nF
aerial motor
26 RST 32 GND 20 VP1 6 VP2 25 DIAG 22 STANDBY/ MUTE I2C-BUS INTERFACE CLIP DETECT/ DIAGNOSTIC
10 k 220 nF (1) 220 nF
microcontroller
SDA SCL STB
2 4
14.4 V
2200 F (16 V)
microcontroller
RS 470 nF
IN1
11
MUTE
9
26 dB/ 20 dB
OUT1+ OUT1-
7 PROTECTION/ DIAGNOSTIC
RS 470 nF
IN2
15
MUTE
17
26 dB/ 20 dB
OUT2+ OUT2-
19 PROTECTION/ DIAGNOSTIC
RS 470 nF
IN3
12
MUTE
5
26 dB/ 20 dB
OUT3+ OUT3-
3 PROTECTION/ DIAGNOSTIC
RS 470 nF
IN4
14 VP
MUTE
21
26 dB/ 20 dB
OUT4+ OUT4-
23 PROTECTION/ DIAGNOSTIC
TEMPERATURE & LOAD DUMP PROTECTION AMPLIFIER 10 SVR
22 F
13 SGND
2.2 F (4 x 470 nF)
16 ACGND
8
1
18
24
PGND1 PGND2/TAB PGND3 PGND4
mdb587
ACGND capacitor value must be close to 4 x input capacitor value. For EMC reasons, a capacitor of 10 nF can be connected between each amplifier output and ground.
(1) See "Supply decoupling".
Fig.26 Test and application diagram.
2004 Feb 24
44
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Supply decoupling (see Fig.26)
TDA8588J; TDA8588xJ
The high frequency 220 nF decoupling capacitors connected to power supply voltage pins 6 and 20 should be located as close as possible to these pins. It is important to use good quality capacitors. These capacitors should be able to suppress high voltage peaks that can occur on the power supply if several audio channels are accidentally shorted to the power supply simultaneously, due to the activation of current protection. Good results have been achieved using 0805 case-size capacitors (X7R material, 220 nF) located close to power supply voltage pins 6 and 20.
2004 Feb 24
45
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
PCB layout
TDA8588J; TDA8588xJ
handbook, full pagewidth
MDB533
Fig.27 Top of printed-circuit board layout of test and application circuit showing copper layer viewed from top.
handbook, full pagewidth
MDB534
Fig.28 Bottom of printed-circuit board layout of test and application circuit showing copper layer viewed from top.
2004 Feb 24
46
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
TDA8588J; TDA8588xJ
DZ 5.6 V on
Sense GND VP
220 F
1000 F
Mode
CBU
2200 F 10 F (50 V) 10 F (50 V) 10 F (50 V)
10 F (50 V)
4.7 k
TDA8588J
off
22 F 2.2 F
RGND REG2 REG5 REG4 REG3 REG1 SW1 SW2
GND VP
470 nF 470 nF
SDA +5V GND SCL
OUT SGND DIAG
OUT RESCAP off
I2C supply
IN RST RESCAP
10 F (50 V)
10 F
47 nF on
mdb588
Fig.29 Top of printed-circuit board layout of test and application circuit showing components viewed from top.
handbook, full pagewidth
100 nF
220 nF 100 nF
220 nF 10 k
220 nF 47 k
100 nF 100 nF
MDB536
Fig.30 Bottom of printed-circuit board layout of test and application circuit showing components viewed from bottom.
2004 Feb 24
47
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
Beep input circuit
TDA8588J; TDA8588xJ
Beep input circuit to amplify the beep signal from the microcontroller to all 4 amplifiers (gain = 0 dB). Note that this circuit will not affect amplifier performance.
TDA8588
ACGND
2.2 F
From microcontroller
1.7 k
0.22 F
100
47 pF
mdb589
Fig.31 Application diagram for beep input.
Noise The outputs of regulators 1 to 5 are designed to give very low noise with good stability. The noise output voltage depends on output capacitor Co. Table 11 shows the affect of the output capacitor on the noise figure. Table 11 Regulator noise figures REGULATOR 1 2 3 4 5 Note 1. Measured in the frequency range 20 Hz to 80 kHz. Stability The regulators are made stable by connecting capacitors to the regulator outputs. The stability can be guaranteed with almost any output capacitor if its Electric Series Resistance (ESR) stays below the ESR curve shown in Fig.32. If an electrolytic capacitor is used, its behaviour with temperature can cause oscillations at extremely low temperature. Oscillation problems can be avoided by adding a 47 nF capacitor in parallel with the electrolytic capacitor. The following example describes how to select the value of output capacitor. NOISE FIGURE (V) at IREG = 10 mA; note 1 Co = 10 F 225 750 120 225 320 Co = 47 F 195 550 100 195 285 Co = 100 F 185 530 95 185 270
2004 Feb 24
48
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
EXAMPLE REGULATOR 2
TDA8588J; TDA8588xJ
Regulator 2 is stabilized with an electrolytic output capacitor of 10 F which has an ESR of 4 . At Tamb = -30 C the capacitor value decreases to 3 F and its ESR increases to 28 which is above the maximum allowed as shown in Fig.32, and which will make the regulator unstable. To avoid problems with stability at low temperatures, the recommended solution is to use tantalum capacitors. Either use a tantalum capacitor of 10 F, or an electrolytic capacitor with a higher value.
handbook, halfpage
20
MGL912
ESR () 15 maximum ESR 10
5
stable region
0 0.1 1 10 C (F) 100
Fig.32 Curve for selecting the value of output capacitors for regulators 1 to 5.
2004 Feb 24
49
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
PACKAGE OUTLINE
TDA8588J; TDA8588xJ
DBS37P: plastic DIL-bent-SIL power package; 37 leads (lead length 6.8 mm)
SOT725-1
non-concave x Dh
D Eh
view B: mounting base side
d
A2
B j E A L3 L4
L 1 Z e1 e bp wM 37 Q m c e2 L2 vM
0
10 scale
20 mm
DIMENSIONS (mm are the original dimensions) UNIT mm Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT725-1 REFERENCES IEC --JEDEC --JEITA --EUROPEAN PROJECTION A 19 A2 bp c 0.5 0.3 D(1) d Dh 12 E(1) 15.9 15.5 e 2 e1 1 e2 4 Eh 8 j 3.4 3.1 L 6.8 L2 3.9 3.1 L3 L4 m 4 Q 2.1 1.8 v 0.6 w x Z(1) 3.30 2.65
4.65 0.60 4.35 0.45
42.2 37.8 41.7 37.4
1.15 22.9 0.85 22.1
0.25 0.03
ISSUE DATE 01-11-14 02-11-22
2004 Feb 24
50
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
SOLDERING Introduction to soldering through-hole mount packages This text gives a brief insight to wave, dip and manual soldering. A more in-depth account of soldering ICs can be found in our "Data Handbook IC26; Integrated Circuit Packages" (document order number 9398 652 90011). Wave soldering is the preferred method for mounting of through-hole mount IC packages on a printed-circuit board. Soldering by dipping or by solder wave Driven by legislation and environmental forces the worldwide use of lead-free solder pastes is increasing. Typical dwell time of the leads in the wave ranges from 3 to 4 seconds at 250 C or 265 C, depending on solder material applied, SnPb or Pb-free respectively.
TDA8588J; TDA8588xJ
The total contact time of successive solder waves must not exceed 5 seconds. The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg(max)). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. Manual soldering Apply the soldering iron (24 V or less) to the lead(s) of the package, either below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds.
Suitability of through-hole mount IC packages for dipping and wave soldering methods SOLDERING METHOD PACKAGE DIPPING DBS, DIP, HDIP, RDBS, SDIP, SIL PMFP(2) Notes 1. For SDIP packages, the longitudinal axis must be parallel to the transport direction of the printed-circuit board. 2. For PMFP packages hot bar soldering or manual soldering is suitable. suitable - suitable(1) not suitable WAVE
2004 Feb 24
51
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
DATA SHEET STATUS LEVEL I DATA SHEET STATUS(1) Objective data PRODUCT STATUS(2)(3) Development
TDA8588J; TDA8588xJ
DEFINITION This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN).
II
Preliminary data Qualification
III
Product data
Production
Notes 1. Please consult the most recently issued data sheet before initiating or completing a design. 2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. 3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status. DEFINITIONS Short-form specification The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. DISCLAIMERS Life support applications These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes Philips Semiconductors reserves the right to make changes in the products including circuits, standard cells, and/or software described or contained herein in order to improve design and/or performance. When the product is in full production (status `Production'), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.
2004 Feb 24
52
Philips Semiconductors
Product specification
I2C-bus controlled 4 x 50 Watt power amplifier and multiple voltage regulator
PURCHASE OF PHILIPS I2C COMPONENTS
TDA8588J; TDA8588xJ
Purchase of Philips I2C components conveys a license under the Philips' I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011.
2004 Feb 24
53
Philips Semiconductors - a worldwide company
Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com.
(c) Koninklijke Philips Electronics N.V. 2004
SCA76
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
R32/01/pp54
Date of release: 2004
Feb 24
Document order number:
9397 750 11401

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