Read Sharp HT-CN410DVH (serv.man2) Service Manual online
HT-CN410DVH
61
IC502 & IC504, Power Half Bridge (STA518)
Table 2. Functional Pin Status
Note: 1.The pin is open collector. To have the high logic value, it needs to be pulled up by a resistor.
2.To put CONFIG = 1 means connect Pin 24 (CONFIG) to Pins 21, 22 (Vdd) to implemented single BTL (MONO MODE) operation
for high current.
Pin Connection
Pin Name
Pin No
Logical value
IC-Status
FAULT
27
0
Fault detected (Short circuit, or Thermal)
FAULT*
27
1
Normal Operation
TRI-STATE
26
0
All powers in Hi-Z state
TRI-STATE
26
1
Normal Operation
PWRDN
25
0
Low consumption
PWRDN
25
1
Normal Operation
THWAR
28
0
Temperature of the IC=130C
THWAR(1)
28
1
Normal Operation
CONFIG
24
0
Normal Operation
CONFIG(2)
24
1
OUT1A=OUT1B ; OUT2A=OUT2B (IF IN1A=IN1B ; IN2A=IN2B)
GND-SUB
OUT2B
OUT2B
V
CC
2B
GND1B
V
CC
1A
GND1A
OUT1A
OUT1A
GND-Reg
VDD
VDD
CONFIG
V
SS
V
SS
V
CC
Sign
V
CC
Sign
18
16
17
15
6
5
4
3
2
21
22
31
32
33
35
34
36
20
1
19
N.C.
GND-Clean
D01AU1273
OUT1B
V
CC
1B
OUT1B
PWRDN
FAULT
TRI-STATE
9
8
7
28
29
30
OUT2A
TH_WAR
10
27
GND2B
OUT2A
V
CC
2A
IN1A
IN2B
IN1B
14
12
11
23
25
26
GND2A
IN2A
13
24
VL
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