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FA3630V Schematic ( PDF Datasheet ) - Fuji Electric

Teilenummer FA3630V
Beschreibung For Switching Power Supply Control
Hersteller Fuji Electric
Logo Fuji Electric Logo 




Gesamt 6 Seiten
FA3630V Datasheet, Funktion
FFAA36330V630V
s Description
FA3630V is a DC-DC converter controller.
This IC can directly drive a Nch/Pch-MOSFET.
This IC is suitable to reduce converter size because it has
many functions in a small package TSSOP.
s Features
• Low input voltage: 2.5V to 6.5V
• 2-channels PWM control: Rail-to-rail output
Output impedance of output stage = 3.5(typ.)
Nch-MOSFET driving (Ch1)
Nch/Pch-MOSFET driving (Ch2)(selected by SEL pin)
• Low power consumption: 0.7mA (typ.)
• ON/OFFcontrol: Standby current= 0.1µA (typ.)
±2% high accuracy reference voltage
• Adjustable soft start time and maximum duty cycle
• Adjustable built-in timer latch for short circuit protection
• Wide range of operation frequency: 100kHz to 1MHz
• Package: TSSOP-16 (Thin and small)
s Applications
• Power supply for general equipment
CMOS IC
For Switching Power Supply Control
s Dimensions, mm
TSSOP-16
16 9
18
5.2
0.2±0.05
0.65
0.5±0.08
s Block diagram
Pin Pin
No. symbol
Description
1 ON/OFF ON/OFF function
2 IN2+
Ch. 2 non-inverting input to error
amplifier
3 IN2–
Ch.2 inverting input to error
amplifier
4 FB2
Ch. 2 output of error amplifier
5 SEL
Selection of type of MOSFET
drived
6 GND
Ground
7 CS2
Soft start for Ch. 2
8 OUT2
Ch. 2 output (for Nch or Pch-
MOSFET)
9 OUT1
Ch.1 outout (for Nch-MOSFET)
10 CS1
Soft start for Ch.1
11 VCC
Power supply
12 VREG Regulated voltage output
13 FB1
Ch.1 output of error amplifier
14 IN1–
Ch.1 inverting input to error
amplifier
15 CP
Timing capacitor for timer latch
delay
16 CT
Oscillator timing capacitor
1






FA3630V Datasheet, Funktion
s Application circuit
FA3630V
Parts tolerances characteristics are not defined in the circuit design
sample shown above. When designing an actual circuit for a product,
you must determine parts tolerances and characteristics for safe and
economical operation.
6

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