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INTEGRATED CIRCUITS
DATA SHEET
TDA1556Q 2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic distortion detector
Product specification File under Integrated Circuits, IC01 July 1994
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and
FEATURES * Few peripheral components * High output power * Low output offset voltage * Fixed gain * Loudspeaker protection (with diagnostic facility) * Differential inputs * Dynamic Distortion Detector (DDD) * High common mode input signal * Very high CMRR * Good ripple rejection * Mute/stand-by switch * Load dump protection * Short-circuit safe QUICK REFERENCE DATA SYMBOL VP PARAMETER positive supply voltage operating non-operating load dump IORM IP Isb Isw Zi Tvj PO SVRR Vos Gv CMRR repetitive peak output current total quiescent current stand-by current switch-on current input impedance virtual junction temperature output power supply voltage ripple rejection DC output offset voltage channel separation channel unbalance rejection ratio 4 ; THD = 10% 6.0 - - - - - - 50 - - - 40 - - RS = 0 ; f = 100 Hz to 10 kHz 48 14.4 - - - 80 0.1 - - - 22 - - - - 72 CONDITION MIN. GENERAL DESCRIPTION * Thermally protected * Reverse polarity safe
TDA1556Q
* High energy handling capability at the outputs (VP = 0 V) * Electrostatic discharge protection * No switch-on/switch-off plop * Flexible leads * Low thermal resistance
TDA1556Q is a monolithic integrated class-B output amplifier containing two 22 Watt amplifiers in a BTL configuration. The device is contained in a 17-lead single-in-line (SIL) plastic power package. It has two differential inputs and is primarily intended for car booster applications.
TYP.
MAX. 18 30 45 4 - 100 60 - 150 - - 100 - 1 -
UNIT V V V A mA A A k C W dB mV dB dB dB
ORDERING INFORMATION PACKAGE EXTENDED TYPE NUMBER PINS TDA1556Q(1) Note 1. SOT243-1; 1996 August 19. 17 PIN POSITION SIL MATERIAL plastic CODE SOT243R
July 1994
2
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
TDA1556Q
VP
handbook, full pagewidth
5 1 mute switch
13
input 1A
input 1B
2 VA
6
output 1A
mute switch
VA
8
output 1B
DDD
4 14 stand-by switch 15 VA stand-by reference voltage mute switch x1 mute/stand-by
LSP
TDA1556Q
n.c.
9
input 2A
16
mute switch
input 2B
17 VA
10
output 2A
mute switch
VA 3
12
output 2B
n.c.
11
7
MLA383-2
powerground
Fig.1 Block diagram.
July 1994
3
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
PINNING SYMBOL IN1A IN1B n.c. DDD Vp1 OUT1A GND1 OUT1B n.c. OUT2A GND2 OUT2B VP2 M/SB LSP IN2A IN2B PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 DESCRIPTION input signal 1A input signal 1B not connected dynamic distortion detector positive supply voltage 1 output signal 1A power ground 1 output signal 1B not connected output signal 2A power ground 2 output signal 2B positive supply voltage 2 mute/stand-by switch loudspeaker protection input signal 2B input signal 2A
handbook, halfpage
TDA1556Q
IN 1A IN 1B n.c. DDD V P1 OUT 1A GND 1 OUT 1B n.c.
1 2 3 4 5 6 7 8 9
TDA1556Q
OUT 2A 10 GND 2 11 OUT 2B V P2 12 13
M/SB 14 LSP IN 2A IN 2B 15 16 17
MLA381 - 1
Fig.2 Pin configuration.
THERMAL RESISTANCE THERMAL SYMBOL Rth j-a Rth j-c PARAMETER RESISTANCE from junction to ambient in free air from junction to case (see Figs 3 and 4) 40 K/W 1.5 K/W
0.1 K/W
handbook, halfpage
output 1
output 2
virtual junction 2.8 K/W 2.8 K/W
case
MLA382
Fig.3 Thermal resistance.
July 1994
4
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
FUNCTIONAL DESCRIPTION The TDA1556Q contains two identical amplifiers each with a fixed gain of 26 dB and differential input stages. The device can be used for bridge-tied-load applications. The circuit has the following features: * low stand-by current (< 100 A) * low mute/stand-by switching current (low cost supply switch) * mute facility Loudspeaker protection
TDA1556Q
Should a short circuit to ground occur, thereby forcing a DC voltage 1 V across the loudspeaker, a built-in protection circuit is activated to limit the DC voltage across the speaker to 1 V. The delay time of the protection circuit can be influenced by the external capacitor connected to pin 15. A dynamic distortion detector (DDD) is activated when clipping occurs at one or both output stages. Its information may be used to operate a sound processor or DC volume control to attenuate the input signal, thereby minimizing the distortion.
LIMITING VALUES In accordance with the absolute maximum system (IEC 134) SYMBOL VP PARAMETER positive supply voltage operating non-operating during 50 ms (load dump protection); rise time 2.5 ms IOSM IORM Tstg Tvj Vpsc Vpr Ptot non-repetitive peak output current repetitive peak output current storage temperature range virtual junction temperature AC and DC short-circuit safe voltage energy handling capability at outputs reverse polarity total power dissipation VP = 0 - - - 18 30 45 V V V CONDITION MIN. MAX. UNIT
- - -55 - - - - -
6 4 +150 +150 18 200 6 60
A A C C V mJ V W
DC CHARACTERISTICS VP = 14.4 V; Tamb = 25 C; unless otherwise specified SYMBOL Supply VP IP VO Vos VON positive supply voltage quiescent current DC output voltage DC output offset voltage note 2 operating note 1 6.0 - - - 14.4 80 6.9 - - 18 160 - 100 - V mA V mV PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Mute/stand-by switch-on voltage level 8.5 V
July 1994
5
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
SYMBOL MUTE CONDITION Vmute VO Vos Vsb Isb Isw IPSC mute voltage output signal in mute position DC output offset voltage VI max = 1 V; f = 1 kHz 3.3 - - 0 V14 < 0.5 V 0.5 V V14 2.0 V switch-on current supply current short-circuit to ground; note 3 - - - - - - - - - - 25 10 PARAMETER CONDITIONS MIN. TYP.
TDA1556Q
MAX.
UNIT
6.4 2 100
V mV mV
STANDBY CONDITION stand-by voltage DC standby current 2 100 500 60 V A A A mA
Loudspeaker protection V6-8, 10-12 DC voltage across RL td delay time Protection active (V4-6 or V7-9 1.0 V I15 V15 current information voltage information - 3.6 - 25 - - - - A V - - - 0.5 1.0 - V s
Protection inactive (V6-8 and V10-12 0.1 V) V15 voltage information 0.3 V
Notes to the characteristics 1. The circuit is DC adjusted at VP = 6 to 18 V and AC operating at VP = 8.5 to 18 V 2. At 18 V < VP < 30 V the DC output voltage VP/2 3. Conditions: V14 = 0 V; short circuit to ground; switch V14 to MUTE or ON condition, rise time at V14 = 10 s 4. Frequency response externally fixed 5. Ripple rejection measured at the output with a source-impedance of 0 (maximum ripple amplitude of 2 V) and a frequency between 100 Hz and 10 kHz 6. Mismatching is given by the following equation: Z i1 - Z i2 Z i = -------------------- x 100 Z i1 Z i3 - Z i4 Z i = -------------------- x 100 Z i3 7. Noise measured in a bandwidth of 20 Hz to 20 kHz 8. Noise output voltage independent of RS (VI = 0 V) 9. Common mode rejection ratio measured at the output with both inputs tied together. VI(RMS) < 3.5 V; f = 100 Hz - 10 kHz
July 1994
6
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
AC CHARACTERISTICS Vp = 14.4 V; RL = 4 ; f = 1 kHz; Tamb = 25 C; unless otherwise specified SYMBOL PO PARAMETER output power CONDITION THD = 0.5% THD = 10% THD = 0.5%; VP = 13.2 V THD = 10%; VP = 13.2 V THD B total harmonic distortion power bandwidth PO = 1 W THD = 0.5%; PO = -1 dB; with respect to 15 W -1 dB; note 4 -1 dB note 5 ON condition MUTE condition stand-by condition Zi Zi Vno input impedance input impedance noise output voltage note 6 ON: Rs = 0 ; note 7 ON: Rs = 10 k; note 7 MUTE: Rs = 10 k; notes 7 and 8 Gv CMRR THD channel separation channel unbalance common mode rejection ratio total harmonic distortion note 9 IDDD = 50 A (peak) Rs = 10 k 48 48 80 100 - - - - 40 - 64 - - - - 120 4 70 100 60 - - 72 3.5 MIN. 15 20 - - - - TYP. 17 22 12 17 0.1 20 to 15000 25 - 26
TDA1556Q
MAX. - - - - - -
UNIT W W W W % Hz
fl fh Gv SVRR
low frequency roll-off high frequency roll-off closed loop voltage gain supply voltage ripple rejection
- 20 25
- - 27 - - - 150 - 120 - - - 1 - -
Hz kHz dB dB dB dB k % V V V dB dB dB %
July 1994
7
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
TDA1556Q
DDD
handbook, full pagewidth
mute/stand-by
VP 100 nF 2200 F
4 1/2 R s 220 nF
14
5
13
1 6 Z i1
audio source Z i2 1/2 R s 220 F 8 2
R load
n.c.
9 Vref 15 4.7 F
n.c.
3
TDA1556Q
1/2 R s
220 nF
16 10 Z i3
audio source Z i4 1/2 R s 220 F 12 17
R load
7
11
MLA380-2
Fig.4 Stereo BTL test diagram.
July 1994
8
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
PACKAGE OUTLINE DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm)
TDA1556Q
SOT243-1
non-concave D x Dh
Eh
view B: mounting base side
d
A2
B j E A
L3
L
Q c
1 Z e e1 bp wM
17 m e2 vM
0
5 scale
10 mm
DIMENSIONS (mm are the original dimensions) UNIT mm A 17.0 15.5 A2 4.6 4.2 bp 0.75 0.60 c 0.48 0.38 D (1) 24.0 23.6 d 20.0 19.6 Dh 10 E (1) 12.2 11.8 e 2.54 e1 e2 Eh 6 j 3.4 3.1 L 12.4 11.0 L3 2.4 1.6 m 4.3 Q 2.1 1.8 v 0.8 w 0.4 x 0.03 Z (1) 2.00 1.45
1.27 5.08
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT243-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION
ISSUE DATE 92-11-17 95-03-11
July 1994
9
Philips Semiconductors
Product specification
2 x 22 W stereo BTL differential amplifier with speaker protection and dynamic
SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our "IC Package Databook" (order code 9398 652 90011). Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA1556Q
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. Repairing soldered joints Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, 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.
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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 Where application information is given, it is advisory and does not form part of the specification. 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 customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
July 1994
10

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