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PD-H300mkⅡM
Power Driver IC for CD Player: TA2125AF
Featuers
Block Diagram
24
6
7
12
13
1
2
RL5
36
V
R
35
34
33
32
31
30
Control
Logic
3
STBY
STBY
RIN FIN
4ch
Driver
STB IN3 IN4
REG
STB
29
27
28
FIN
V
CC
26
25
REG OUT
N.C.
23
22
21
3
3
3
3
20
19
4
VCIN IN1
5
N.C. N.C.
3
3
3
3
15
16
17
18
IN2
N.C. N.C.
11
14
8
9
FIN
10
GND
Iref
TSD
RL4
RL3
RL2
RL1
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.
4 channel BTL linear drivers
High output power: Vout = 5.1 Vp-p (VCC = 8 V, RL = 8 Ω)
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 = 5.0-9.0 V
Summary of Contents for PD-H300mkIIM
Page 5: ...5 PD H300mk M CD Block System TC94A54MFG...
Page 7: ...3 PD H300mkIIM EXPLODED VIEW 7 PD H300mk M...
Page 9: ...9 4 PC BOARDS AND PARTS LIST PD H300mk M...
Page 10: ...10 PD H300mk M...
Page 14: ...8 6 7 4 5 2 3 1 E D C B A SCHEMATIC DIAGRAM PD H300mk M...
Page 15: ...8 6 7 4 5 2 3 1 E D C B A WIRING DIAGRAM PD H300mk M...
