la6557h Sanyo Semiconductor Corporation, la6557h Datasheet - Page 5

• Manufacturer Part Number: la6557h
• Description: Five-channel Bridge Driver For Md And Cd Players
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Notes: The center frame (FR) functions as the power system ground. It must be, along with S-GND, at the lowest potential in the system.
Pin No.
19
20
21
22
25
26
27
28
The power supply pins, V
REG-OUT
V
REG-IN
S-GND
V
MUTE
REF
FWD
REV
Pin
CC
-S
-IN
Regulator input (base of the external pnp transistor)
Regulator output (collector of the external pnp transistor)
Reference voltage input
Signal system power supply (shorted to V
Output on/off control for channels 1 to 4 (the BTL amplifiers)
Signal system ground
Channel 5 (VLO) output switching (FWD), logic input to the
loading block
Channel 5 (VLO) output switching (REV), logic input to the
loading block
CC
-S, V
CC
1, and V
Function
CC
2 must be shorted together externally to the IC.
CC
1 and V
LA6557H
CC
2)
S-GND
MUTE
V CC
100 k
100 k
( 12 )
25
26
1
Equivalent circuit
27
No. 6350-5/8
HM0005
HM0004
FWD