LA4905 Datasheet, PDF (4/10 Pages) Sanyo Semicon Device – 17-W, 2-Channel BTL AF High-Efficiency Power Amplifier for Car Stereo Systems

Equivalent Circuit Block Diagram
LA4905
Pin Voltages V_CC = 13.2 V, 5 V applied to STBY through a 10-kΩ resistor, using a digital voltmeter
Pin No.
1
2
3
Pin
IN2
Pre-GND
IN1
Pin voltage (V)
1.36
0
1.36
4
5
6
7
8
BEEP
PWR-GND 1
–OUT1
+OUT1
C
1.36
0
2.03
2.03
13.0
Pin No.
9
Pin
C
Pin voltage (V)
3.92
10
V_CC
13.2
11
V_CC (SW)
13.2
12
SW OUT 1
3.70
13
SW OUT 2
3.70
14
SW E
3.73
15
SW B
4.0
16
SW-GND
0
Pin No.
Pin
Pin voltage (V)
17
+OUT 2
2.03
18
–OUT 2
2.03
19
PWR-GND 2
0
20
D. C
12.1
21
STAND-BY
3.21
22
N. C
0
23
ON-TIME
2.81
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