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Descriprion of major ICs
BA5926S(IC581):CD/POSITION/TRAY DRIVER
1.Terminal layout & Block diagram
32
31
x2
D
LEVEL SHIFT
D
D
1
2
2.Pin function
No. Symbol
1
OUT1-
Driver CH1 negative output
2
OUT+
Driver CH1 positive output
3
OUT2-
Driver CH2 negative output
4
OUT2+
Driver CH2 positive output
5
IN 2
Driver CH2 input
6
IN 1
Driver CH1 input
7
VCC
Power supply
8
VCC
Power supply
9
REG-B
Connect to external TR.BASE
10
REG OUT
Constant voltage output(5V)(*3)
11
VCC
Power supply
12
IN3-R
driver CH3 reverse input
13
IN3-F
Driver CH3 forward input
14
OUT3+
Driver CH3 positive output
15
OUT3-
Driver CH3 negative output
16
GND
ground
Note 1) Positive output and negative output of phasing with input.
Note 2) Loading positive output and loading negative output of phasing with mode.
1‑27
*3
Connect to external PNP transistor collector.
30
29
28
27
x2
VCC
D
x3/8
x3/8
LEVEL SHIFT
LEVEL SHIFT
13.3K
100
13.3K
D
D
100
3
4
5
6
Function
26
25
24
23
VCC
BIAS
100
13.3K
T.S.D
10K
10K
VCC
VCC
7
8
9
10
T.S.D: Thermal shut down circuit
D: Driver buffer
Unit of resistor:[
No.
Symbol
17
OUT4-
18
OUT4+
19
OUT5-
20
OUT5+
21
IN 5
22
IN 4
23
VCC
24
BIAS IN
25
GND
26
GND
27
VCC
28
IN6-R
29
IN6-F
30
OUT6+
31
OUT6-
32
GND
22
21
20
19
D
D
100
13.3K
LEVEL SHIFT
LEVEL SHIFT
x3/8
x3/8
D
VCC
x2
11
12
13
14
]
Function
Driver CH4 negative output
Driver CH4 positive output
Driver CH5 negative output
Driver CH5 positive output
Driver CH5 input
Driver CH4 input
Power supply
Bias input
Substrate ground
Substrate ground
Power supply
Driver CH6 reverse input
Driver CH6 forward input
Driver CH6 positive output
Driver CH6 negative output
ground
18
17
D
D
LEVEL SHIFT
D
x2
16
15
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