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TA2125AF
Preliminary TOSHIBA Bipolar Liner Integrated Circuit
Silicon Monolithic
TA2125AF
Power Driver IC for CD Player
TA2125AF is power driver IC developed for CD players. This IC have built-in 4 channel BTL power amplifiers and 1 channel H-Bridge driver. Which drives focus-coil and tracking coil for 3-beam pick-up head, disc motor, feed motor and loading motor.
Features
* 4 channel BTL linear drivers High output power: Vout = 5.1 Vp-p (VCC = 8 V, RL = 8 ) Stand-by switch for BTL drivers 1 channel H-Bridge: VCE (H) + VCE (L) = 1.3 V (VR = VM = 8 V, IO = 200 mA) Logic control (forward, revers, brake, stand-by) Punch through current restriction diode for H-bridge 5 V regulator reference amp (with external output Tr.) Thermal shut down protection Operating supply voltage range: VCC = 5.0 to 9.0 V Weight: 0.74 g (typ.)
*
* * * *
Block Diagram
4ch Driver REG RIN FIN STB IN3 IN4 STB VCC RL4 REG OUT 36 35 34 33 STBY 32 31 30 STBY 29 28 FIN 27 26 25 N.C. 24 23 x3 22 21 20 19 RL3
VR
Control Logic
x3
x3
x3
Iref
TSD
x3
x3
x3
x3
1
2 RL5
3
4
5
6
7
8
9
FIN GND
10
11
12
13
14
15
16
17
18
N.C. N.C. VCIN IN1
N.C. N.C. IN2 RL2 RL1
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TA2125AF
Terminal Explanation
No. 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 Symbol OUT5A VM OUT5B VCIN IN1 N.C. N.C. N.C. N.C. N.C. IN2 N.C. N.C. VCC1 OUT2M OUT2P OUT1M OUT1P OUT3P OUT3M OUT4P OUT4M VCC2 N.C. REG REG OUT N.C. N.C. N.C. Output terminal Supply voltage terminal for Logic Output terminal Input reference voltage Input for ch1 Open Open 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) Input for ch2 Open Open Supply voltage terminal for ch1/ch2 Inverted output for ch2 Non-inverted output for ch2 Inverted output for ch1 Non-inverted output for ch1 Non-inverted output for ch3 Inverted output for ch3 Non-inverted output for ch4 Inverted output for ch4 Supply voltage terminal for ch3/ch4 Open Connection with BASE of PNP Tr Output for regulator (5 V) 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) Function H-bridge H-bridge H-bridge 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL 4ch BTL Regulator Regulator Regulator 4ch BTL 4ch BTL 4ch BTL H-bridge H-bridge H-bridge
REG STBY Standby control for regulator IN4 IN3 STBY FIN RIN VR Input for ch4 Input for ch3 Standby control for 4ch BTL Logic control input Logic control input Supply voltage terminal for motor driver
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Precaution Use
(4ch BTL)
* Input stage Minimum input DC voltage range for buffer is 0.2 V * Driver stage Each channel driver consists of BTL configuration linear amplifier. Voltage gain is fixed: Gv = 15.2dB * VCIN terminal VCIN is reference voltage terminal for input signal * GND Pin 8~10 and Pin 27~29 are connected to FIN through inner lead frame. Each FIN are not connected each other also. The heat of power dissipation is transferred to PCB, through PW-GND Pin. PW GND is connected to substrate of Pellet to connected copper foil area as large as possible. * VCC1/VCC2 Pin 14 and pin 23 are not connected through AL layer on chip.
(H-Bridge)
* VR/VM terminal VR terminal is control for H-brige dynamic range. I36 = 30 mA (Brake Mode) VM terminal is VCC terminal for H-Bridge. * STBY/REG STBY STBY is standby control terminal for 4ch BTL. REG STBY is standby control terminal for regulator.
Maximum Ratings (Ta = 25C)
Characteristics
Supply voltage Power dissipation Operating temperature Storage temperature
Symbol
VCC PD Topr Tstg
Rating
12 1.7 -35~85 -55~150
Unit
V W C C
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TA2125AF
Electrical Characteristics
Characteristics Operating supply voltage Quiescent current
(Unless otherwise specified, VCC = 8 V, RL = 8 , VBIAS = 2.1 V, f = 1 kHz, Ta = 25C)
Symbol VCC1, 2 Iccq Test Circuit Test Condition Min 5 27 Typ. 8 37 Max 9 60 Unit V mA
VIN = VBIAS, RL = OPEN (With out H-SW)
4ch BTL Driver
Characteristics Output offset voltage Maximum output voltage Voltage gain Stand-by 1 control voltage Symbol VOS VOM Gv VSTB (on) VSTB (off) Stand-by current ISTB1 Test Circuit VIN = VBIAS, RL = OPEN H-Bridge: Stand-by 5 V REG: Stand-by Rg = 0 VIN = 4 V/GND VIN = VBIAS 200 mV Test Condition Min -50 4.5 14.0 3.0 Typ. 10 5.1 15.2 Max 50 16.4 0.5 1 Unit mV V dB V V A
Regulator Reference Amp
Characteristics Output voltage Symbol Vreg Vreg (on) Vreg (off) Test Circuit Test Condition Io = 200 mA Tr. 2SA1203Y Min 4.6 2.5 GND Typ. 5 Max 5.2 VCC 1.5 Unit V V V
Regulator control voltage
H-Bridge
Characteristics Output saturation voltage Stand-by current Symbol VCE ISTB2 VHB (on) VHB (off) Test Circuit Test Condition Io = 200 mA 4ch BTL: Stand-by 5 V REG: Stand-by Min 2.5 GND Typ. 1.3 Max 1.4 1 VCC 0.7 Unit V A V V
Control voltage
H-Bridge Control Logic/VR Current (36pin)
Operation Mode Forward Revers Brake Stand-by Fin H L H L Rin L H H L Out5A L H L Open Out5B H L L Open VR Current 19.5 19.5 30 1 Unit mA mA mA A
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TA2125AF
Test Circuit
100 F 0.1 F
0.1 F
47 F
RL4 N.C. 26 25 24 23 x3 22 21
RL3
36
35
34
33 STBY
32
31
30 STBY
29
28
FIN
27
20
19
Control Logic
x3
x3
x3
Iref
TSD
x3
x3
x3
x3
1
2
3
4
5
6
7
8
9
FIN GND
10
11
12
13
14
15
16
17
18
N.C. N.C. RL5
N.C. N.C. RL2 RL1
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TA2125AF
Package Dimensions
Weight: 0.74 g (typ.)
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TA2125AF
RESTRICTIONS ON PRODUCT USE
* The information contained herein is subject to change without notice.
030619EBF
* The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of TOSHIBA or others. * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced and sold, under any law and regulations. * This product generates heat during normal operation. However, substandard performance or malfunction may cause the product and its peripherals to reach abnormally high temperatures. The product is often the final stage (the external output stage) of a circuit. Substandard performance or malfunction of the destination device to which the circuit supplies output may cause damage to the circuit or to the product.
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2003-10-07

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