FA3675F Datasheet, PDF (3/8 Pages) Fuji Electric – For Switching Power Supply Control

FA3675F
Pin Pin
No. symbol
1 VCC1
2 RT
3 CT
4 CS3
5 CS5
6 CS4
7 CS1
8 CS2
9 VREF
10 CREF
11 VREG
12 IN2-
13 FB2
14 IN1-
15 FB1
16 IN5+
17 IN5-
18 FB5
19 IN6-
20 FB6
21 IN3+
22 IN3-
23 FB3
24 IN4+
Description
Power supply for control circuit
Oscillator timing resistor
Oscillator timing capacitor
Soft start for Ch. 3 & Ch. 4
Soft start for Ch. 6
Soft start for Ch. 5
Soft start for Ch. 1
Soft start for Ch. 2
Reference voltage output
Capacitor for reference voltage output
Regulated voltage output
Ch. 2 inverting input to error amplifier
Ch. 2 output of error amplifier
Ch. 1 inverting input to error amplifier
Ch. 1 output of error amplifier
Ch. 5 non-inverting input to error amplifier
Ch. 5 inverting input to error amplifier
Ch. 5 output of error amplifier
Ch. 6 inverting input to error amplifier
Ch. 6 output of error amplifier
Ch. 3 non-inverting input to error amplifier
Ch. 3 inverting input to error amplifier
Ch. 3 output of error amplifier
Ch. 4 non-inverting input to error amplifier
s Absolute maximum ratings
Item
Power supply voltage
Source peak current
Sink peak current
Input voltage for analog input
Input voltage for logic input
Total power dissipation *
Junction temperature
Ambient temperature
Storage temperature
* Ta < 25°C
s Recommended operating conditions
Item
Power supply voltage
Input voltage for logic input
Oscillation frequency
Oscillator timing resistor
Oscillator timing capacitor
CREF terminal by-pass capacitor
Vcc ≤ 5.0
Vcc > 5.0
Symbol
VCC
IOUT
IOUT
VANA
VLOG
Pd
TJ
TOP
Tstg
Symbol
VCC
VLOG
fOSC
RT
CT
CREF
Pin Pin
No. symbol
25 IN4-
26 FB4
27 CP
28 GND
29 TLSEL
30 CNT5
31 CNT4
32 CNT2
33 CNT3
34 CNT1
35 VCC2
36 VDRV
37 PGND1
38 OUT1S
39 OUT1
40 OUT4
41 OUT3
42 OUT2S
43 OUT2
44 OUT6S
45 OUT6
46 OUT5
47 OUT5S
48 PGND2
Description
Ch. 4 inverting input to error amplifier
Ch. 4 output of error amplifier
Timing capacitor for timer latch delay
Ground
Ch. 3 & Ch. 4 timer latch selection (Low: disable)
Ch. 6 ON/OFF function
Ch. 5 ON/OFF function
Ch. 2 ON/OFF function
Ch. 3 & Ch. 4 ON/OFF function
Ch. 1 ON/OFF function
Power supply for output stage
Bias for logic circuit of outputs
Power ground
Ch. 1 source electrode of output stage
Ch. 1 output (for Pch-MOSFET)
Ch. 4 output (for Pch-MOSFET)
Ch. 3 output (for Pch-MOSFET)
Ch. 2 source electrode of output stage
Ch. 2 output (for Pch-MOSFET)
Ch. 6 source electrode of output stage
Ch. 6 output (for Nch-MOSFET)
Ch. 5 output (for Pch-MOSFET)
Ch. 5 source electrode of output stage
Power ground
Rating
Unit
20.0
V
–200
mA
200
mA
–0.3 to +2.5
V
–0.3 to Vcc +0.5 (Vcc ≤ 5.0V)
–0.3 to +5.5 (Vcc > 5.0V)
V
550
mW
125
°C
–20 to +85
°C
–40 to +150
°C
Min.
2.5
0.0
0.0
50
6.8
22
0.01
Max.
Unit
18.0
V
Vcc +0.25
V
5.25
1000
kHz
100
kΩ
1000
pF
µF
124