Audiovox DM8900-00, Service Manual, Page: 14 / 19

15
IC601 BA5901K PINS DESCRIPTION
Pin No. Pin Name Function
1 BSEN Battery voltage monitor terminal
2 BATT Battery power supply input terminal
3 RESET Cassette detection output terminal
4 DEAD Dead-time setting terminal
5 SW Booster transistor drive terminal
6 EO Error amplifier output terminal
7 EI Error amplifier input terminal
8 SPRT Short-circuit protection setting terminal
9 CT Triangular wave output terminal
10 N.C
11 OP- Operational amplifier negative input terminal
12 VSYSI Control circuit power supply input terminal
13 OPOUT Operational amplifier output terminal
14 OP+ Operational amplifier positive input terminal
15 VSYS2 Pre-driver power supply input terminal
16 VREF Reference power supply input terminal
17 IN3 CH3 control signal input terminal
18 IN4 CH4 control signal input terminal
19 MUTE34 CH3/CH4 mute terminal
20 IN2 CH2 control signal input terminal
21 MUTE2 CH2 mute terminal
22 IN1 CH1 control signal input terminal
23 BRAKE1 CH1 brake terminal
24 OUT4R CH4 negative output
25 OUT4F CH4 positive output
26 OUT3R CH3 negative output
27 OUT3F CH3 positive output
28 POWGND Power unit power supply ground
29 OUT2F CH2 positive output
30 OUT2R CH2 negative output
31 OUT1F CH1 positive output
32 OUT1R CH1 negative output
33 RCHG Charging current setting terminal
34 AMUTE Reset inversion output terminal
35 EMP "Empty" detection output terminal
36 HVCC H-bridge power supply input terminal
37 PSW PWM transistor drive terminal
38 CLK External clock synchronization input terminal
39 START Boost DC/DC converter starting terminal
40 OFF Boost DC/DC converter OFF terminal
41 CHGVCC Charging circuit power supply input terminal
42 SEL "Empty" detection level switching terminal
43 PREGND Pre-unit power supply ground terminal
44 PWMFIL PWM phase compensation terminal