TA2125AF_03 Datasheet, PDF (1/7 Pages) Toshiba Semiconductor – Power Driver IC for CD Player

Preliminary ^{TOSHIBA Bipolar Liner Integrated Circuit Silicon Monolithic}
TA2125AF
Power Driver IC for CD Player
TA2125AF
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 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 to 9.0 V
Weight: 0.74 g (typ.)
Block Diagram
4ch
Driver
REG
V_R RIN FIN _STB IN3 IN4 _STB
V_CC
REG OUT
RL4
RL3
N.C.
36 35 34 33 32 31 30 29 28 FIN 27 26 25 24 23 22 21 20 19
Control _STBY
Logic
STBY
×3 ×3 ×3 ×3
Iref TSD
×3 ×3 ×3 ×3
12345678
N.C. N.C.
RL5
VCIN IN1
9 FIN
GND
10 11 12 13 14 15 16 17 18
N.C. N.C.
RL2
RL1
IN2
1
2003-10-07