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TA2125AF
Power Driver IC for CD Player
TtMBll4llllBlh
TA2125AF
TOSHIBA Bipolar Liner Integrated Circuit Silicon Monolithic
Preliminary
TAIM 25AF
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, /E
disc motor, feed motor and loading motor.
Featuers
o 4 channel BTL linear drivers
High output power: Vout = 5.1 Vp-p (Vcc = 8 V, RL = 8 Q) HSOP36-P-375-0.80
Stand-by switch for BTL drivers
q 1 channel H-Bridge:
IO = 200 mA)
"s. mmffl
VCE (H) + VCE (L) = 1.3 V (VR = VM = 8 V,
Weight: g (typ.)
Logic control (forward, revers, brake, stand-by)
0 Punch through current restriction diode for H-bridge
o 5 V regulator reference amp (with external output Tr.)
q Thermal shut down protection
. Operating supply voltage range: VCC = 5.0-9.0 V
Block Diagram
Jie,, REG VCCO
VR RIN I? STB l? "Y SIB
REG OUT T.
Control
VCIN INI
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Terminal Explanation
No. Symbol Function
1 OUT5A Output terminal H-bridge
2 VM Supply voltage terminal for Logic H-bridge
3 OUT5B Output terminal H-bridge
4 VCIN Input reference voltage 4ch BTL
5 INI Input for ch1 4ch BTL
6 N.C. Open -
7 N.C. Open -
8 N.C. 8, 9, 10, 27, 28, 29 are connected to PW GND (FIN) -
9 NC. 8, 9, 10, 27, 28,29 are connected to PW GND (FIN) -
10 N.C. 8, 9, 10,27, 28,29 are connected to PW GND (FIN) -
11 IN2 Input for ch2 4ch BTL
12 N.C. Open -
13 N.C. Open -
14 V001 Supply voltage terminal for ch1/ch2 4ch BTL
15 OUT2M Inverted output for ch2 4ch BTL
16 OUT2P Non-inverted output for ch2 4ch BTL
17 OUT1M Inverted output for ch1 4ch BTL
18 OUT1 P Non-inverted output for ch1 4ch BTL
19 OUT3P Non-inverted output for ch3 4ch BTL
20 OUT3M Inverted output for ch3 4ch BTL
21 OUT4P Non-inverted output for ch4 4ch BTL
22 OUT4M Inverted output for ch4 4ch BTL
23 V002 Supply voltage terminal for ch3/ch4 4ch BTL
24 N.C. Open -
25 REG Connection with BASE of PNP Tr Regulator
26 REG OUT Output for regulator (5 V) Regulator
27 N.C. 8, 9, 10,27, 28,29 are connected to PW GND (FIN) -
28 N.C. 8, 9, 10,27, 28,29 are connected to PW GND (FIN) -
29 N.C. 8, 9, 10,27, 28,29 are connected to PW GND (FIN) -
30 REG STBY Standby control for regulator Regulator
31 IN4 Input for ch4 4ch BTL
32 IN3 Input for ch3 4ch BTL
33 STBY Standby control for 4ch BTL 4ch BTL
34 FIN Logic control input H-bridge
35 RIN Logic control input H-bridge
36 VR Supply voltage terminal for motor driver H-bridge
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Precaution Use
(4ch BTL)
. Input stage
Minimum input DC voltage range for buffer is 0.2 V
q Driver stage
Each channel driver consists of BTL configuration linear amplifier.
Voltage gain is fixed: Gv = 15.2dB
q VCIN terminal
VCIN is reference voltage terminal for input signal
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.
q VCCI/VCC2
Pin 14 and pin 23 are not connected through AL layer on chip.
(H-Bridge)
0 VR/VM terminal
VR terminal is control for H-brige dynamic range. 136 = 30 mA (Brake Mode)
VM terminal is Vcc terminal for H-Bridge.
o STBY/REG STBY
STBY is standby control terminal for 4ch BTL.
REG STBY is standby control terminal for regulator.
Maximum Ratings (Ta = 25°C)
Characteristics Symbol Rating Unit
Supply voltage Vcc 12 V
Power dissipation PD 1.7 W
Operating temperature Topr -35-85 "C
Storage temperature Tstg -55-150 ''C
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Electrical Characteristics
(Unless otherwise specified, Vcc = 8 V, RL = 8 n, VBIAS = 2.1 V, f= 1 kHz, Ta = 25°C)
Characteristics Symbol CTiisutit Test Condition Min Typ. Max Unit
Operating supply voltage VCC1, 2 - - 5 8 9 V
Quiescent current Iccq 7 mt: ),(ftr)/ji0)- = OPEN 27 37 60 mA
4ch BTL Driver
. . Test . . . .
Characteristics Symbol Circuit Test Condition Min Typ. Max Unit
Output offset voltage Vos - R9 = 0 -50 10 50 mV
Maximum output voltage VOM 7 VIN = 4 V/GND 4.5 5.1 7 V
Voltage gain Gv - VIN = VBIAS l- 200 mV 14.0 15.2 16.4 dB
VSTB (on) i i i 0.5
Stand-by 1 control voltage
VSTB (off) - 3.0 - - V
VIN = VBIAS, RL = OPEN
Stand-by current ISTB1 - H-Bridge: Stand-by - - 1 HA
5 V REG: Stand-by
Regulator Reference Amp
. . Test . . . .
Characteristics Symbol Circuit Test Condition Min Typ. Max Unit
Output voltage vreg - [[9:228921QS3Y 4.6 5 5.2 v
Vreg (on) - 2.5 - VCC
Regulator control voltage
Vreg (off) - GND - 1.5
H-Bridge
. . Test . . . .
Characteristics Symbol Circuit Test Condition Min Typ. Max Unit
Output saturation voltage VCE - Io = 200 mA - 1.3 1.4 V
4ch BTL: Stand-b
Stand-by current ISng - 5 V REG: Stand-b); - - 1 PA
VHB (on) - 2.5 - VCC V
Control voltage
VHB (off) - GND - 0.7 V
H-Bridge Control LogicNR Current (36pin)
Operation Mode Fin Rin Out5A OUISB VR Current i' Unit
Forward H L L H 19.5 i' mA
Revers L H H L 19.5 i mA
Brake H H L L 30 5 mA
Stand-by L L Open Open 1 i pA
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TtMBll4llllliUh TA2125AF
Test Circuit
Control _-_---- f--------------------
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TtMBll4llllliUh TA2125AF
Package Dimensions
HSOP36-P-375-0.80 Unit : mm
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Weight: g (typ.)
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RESTRICTIONS ON PRODUCT USE
000707EBF
. 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.
. 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 Mal 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.
. The products described in this document are subject to the foreign exchange and foreign trade laws.
. The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
o The information contained herein is subject to change without notice.
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