TA2125AF Toshiba Semiconductor, TA2125AF Datasheet

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TA2125AF

Manufacturer Part Number
TA2125AF
Description
Power Driver IC for CD Player
Manufacturer
Toshiba Semiconductor
Datasheet

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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.
Featuers
·
·
·
·
·
·
Block Diagram
Preliminary
4 channel BTL linear drivers
High output power: V
Stand-by switch for BTL drivers
1 channel H-Bridge: V
I
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: V
O
= 200 mA)
V
36
R
1
RIN FIN
RL5
Control
35
Logic
2
34
3
Driver
VCIN IN1
STBY
STB IN3 IN4
4ch
TOSHIBA Bipolar Liner Integrated Circuit Silicon Monolithic
33
out
4
CE (H)
= 5.1 Vp-p (V
32
5
+ V
N.C. N.C.
31
6
CE (L)
STBY
CC
REG
STB
30
7
= 5.0-9.0 V
TA2125AF
CC
= 1.3 V (V
29
8
= 8 V, R
Iref
28
9
V
GND
CC
R
L
REG OUT
= V
FIN
FIN
= 8 Ω)
TSD
1
M
= 8 V,
27
10
IN2
26
11
N.C. N.C.
25
12
Weight:
N.C.
24
13
23
14
´ 3
g (typ.)
22
15
RL4
´ 3
RL2
´ 3

21

16
´ 3
´ 3
20


17
RL3
RL1
´ 3
´ 3
19


18
TA2125AF
2002-02-12
´ 3


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TA2125AF Summary of contents

Page 1

... TOSHIBA Bipolar Liner Integrated Circuit Silicon Monolithic Preliminary 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. ...

Page 2

... STBY Standby control for 4ch BTL 34 FIN Logic control input 35 RIN Logic control input 36 VR Supply voltage terminal for motor driver Function 2 TA2125AF H-bridge H-bridge H-bridge 4ch BTL 4ch BTL ¾ ¾ ¾ ¾ ¾ 4ch BTL ¾ ¾ 4ch BTL ...

Page 3

... STBY is standby control terminal for 4ch BTL. REG STBY is standby control terminal for regulator. ( 25°C) Maximum Ratings Characteristics Supply voltage Power dissipation Operating temperature Storage temperature Symbol Rating Unit 1 -35~85 T °C opr -55~150 T °C stg 3 TA2125AF 2002-02-12 ...

Page 4

... BTL: Stand-by ¾ I STB2 5 V REG: Stand-by ¾ (on) ¾ (off) Current (36pin) R Rin Out5A Out5B Open Open 4 TA2125AF Min Typ. Max ¾ OPEN Min Typ. Max - ¾ 4.5 5.1 14.0 15.2 16.4 ¾ ¾ 0.5 ¾ ¾ ...

Page 5

... Test Circuit Control STBY Logic RL5 FIN STBY Iref TSD FIN N.C. N.C. GND 5 TA2125AF RL4 RL3 N. ´ 3 ´ 3 ´ 3 ´ ´ 3 ´ 3 ´ 3 ´ N.C. N.C. RL2 RL1 ...

Page 6

... Package Dimensions Weight: g (typ.) 6 TA2125AF 2002-02-12 ...

Page 7

... 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. · The information contained herein is subject to change without notice. 7 TA2125AF 000707EBF 2002-02-12 ...

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