LA6565
Pin Function
Pin No.
Pin name
Pin function
1
FWD
Loading output direction switching (FWD). Loading system logic input.
2
REV
Loading output direction switching (REV). Loading system logic input.
3
VCC2
4
VLO−
5
VLO+
6
VO4+
7
VO4−
8
VO3+
9
VO3−
10
VO2+
11
VO2−
12
VO1−
13
VO1+
14
VCCP1
15
VCCS
16
VIN1+
17
VIN1−
18
VIN1
19
VIN2+
20
VIN2−
21
VIN2
22
VIN3−
23
VIN3
24
VO_OP
25
VIN−OP
26
VIN+OP
27 REG_IN
Channels 3, 4, and loading power stage power supply.
Loading output (−)
Loading output (+)
Channel 4 output (+)
Channel 4 output (−)
Channel 3 output (+)
Channel 3 output (−)
Channel 2 output (+)
Channel 2 output (−)
Channel 1 output (−)
Channel 1 output (+)
Channels 1 and 2 power stage power supply.
Signal system power supply.
Channel 1 input. Input operational amplifier + input.
Channel 1 input. Input operational amplifier − input.
Channel 1 input. Input operational amplifier output.
Channel 2 input. Input operational amplifier + input.
Channel 2 input. Input operational amplifier − input.
Channel 2 input. Input operational amplifier output.
Channel 3 input. Input operational amplifier − input.
Channel 3 input. Input operational amplifier output.
Operational amplifier output.
Operational amplifier − input
Operational amplifier + input
Regulator error amplifier output. Connect this pin to the base of the external PNP-transistor.
28 REG_OUT
Regulator error amplifier input (+).
29 VREF_OUT
VREF amplifier (voltage follower) output.
30 VREF_IN
VREF input. Apply the external reference voltage to this pin.
31
VIN4
32
VIN4−
33 MUTE234
Channel 4 input. Input operational amplifier output.
Channel 4 input. Input operational amplifier − input.
Controls the on/off state of channels 2, 3, and 4.
34 MUTE1
Channel 1 output on/off control
35 VCONT
Loading block output high-level voltage setting.
36 S_GND
Signal system ground.
* center frame (FR) becomes GND for the power system, Set this to the minimum potential together with S_GND (signal system ground).
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