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LC-37AD1E
Ë
VHIFA3675F/-1 (ASSY:IC1702)
6-channel DC-DC converter IC
»
Block Diagram
»
Pin Function
Pin No
.
Pin Name
I/O
Pin Function
1
VCC1
—
Power supply for control circuit.
2R
T
—
Oscillator timing resistor.
3C
T
—
Oscillator timing capacitor.
4
CS3
—
Soft start for Ch.3 & Ch.4.
5
CS5
—
Soft start for Ch.6.
6
CS4
—
Soft start for Ch.5.
7
CS1
—
Soft start for Ch.1
8
CS2
—
Soft start for Ch.2.
9
VREF
O
Reference voltage output.
10
CREF
O
C
apacitor for reference voltage output.
11
VREG
O
Regulated for voltage output.
12
IN2-
I
Ch.2 inverting input to error amplifier.
13
FB2
O
Ch.2 output of error amplifier.
14
IN1-
I
Ch.1 inverting input to error amplifier.
15
FB1
O
Ch.1 output of error amplifier.
16
IN5+
I
Ch.5 non-inverting input to error amplifier.
17
IN5-
I
Ch.5 inverting input to error amplifier.
18
FB5
O
Ch.5 output of error amplifier.
19
IN6-
I
Ch.6 inverting input to error amplifier.
20
FB6
O
Ch.6 output of error amplifier.
21
IN3+
I
C
h.3 non-inverting input to error amplifier.
22
IN3-
I
Ch.3 inverting input to error amplifier.
23
FB3
O
Ch.3 output of error amplifier.
24
IN4+
I
C
h.4 non-inverting input to error amplifier.
25
IN4-
I
Ch.4 inverting input to error amplifier.
26
FB4
O
Ch.4 output of error amplifier.
27
CP
I
T
iming capacitor for timer latch delay.
28
GND
—
Ground.
29
TLSEL
I
Ch.3 & Ch.4 timer latch selection(Low:disable).
30
CNT5
I
Ch.6 ON/OFF function.
31
CNT4
I
C
h.5 ON/OFF function.
32
CNT2
I
Ch.2 ON/OFF function.
33
CNT3
I
Ch.3 & Ch.4 ON/OFF function.
34
CNT1
I
C
h.1 ON/OFF function.
35
VCC2
—
Power supply for output stage.
36
VDRV
O
Bias for logic circuit of output.
37
PGND1
—
Power ground.
38
OUT1S
O
Ch.1 source electrode of output stage.
39
OUT1
O
Ch.1 output(for Pch-MOSFET)
40
OUT4
O
Ch.4 output(for Pch-MOSFET)
41
OUT3
O
Ch.3 output(for Pch-MOSFET)
42
OUT2S
O
Ch.2 source electrode of output stage.
43
OUT2
O
Ch.2 output(for Pch-MOSFET)
44
OUT6S
O
Ch.6 source electrode of output stage.
45
OUT6
O
Ch.6 output(for Pch-MOSFET)
46
OUT5
O
Ch.5 output(for Pch-MOSFET)
47
OUT5S
O
Ch.5 source electrode of output stage.
48
PGND2
—
Power ground.
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