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FA3687V Datasheet

  • FA3687V

  • SMPS Controller

  • 18頁

  • ETC

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FA3687V
s
Description
FA3687V is a PWM type DC-to-DC converter control IC with
2ch outputs that can directly drive power MOSFETs. CMOS
devices with high breakdown voltage are used in this IC and
low power consumption is achieved. This IC is suitable for very
small DC-to-DC converters because of their small and thin
package (1.1mm max.), and high frequency operation (up to
1.5MHz). You can select Pch or Nch of MOSFETs driven, and
design any topology of DC-to-DC converter circuit like a buck, a
boost, inverting, a fly-back, or a forward.
CMOS IC
For Switching Power Supply Control
FA3687V
s
Dimensions, mm
TSSOP-16
16
9
鈥?Wide range of supply voltage: V
CC
=2.5 to 20V
鈥?MOSFET direct driving
鈥?Selectable output stage for Pch/Nch MOSFET on each
channel
鈥?Low operating current by CMOS process: 2.5mA (typ.)
鈥?2ch PWM control IC
鈥?High frequency operation: 300kHz to 1.5MHz
鈥?Simple setting of operation frequency by timing resistor
鈥?Soft start function at each channel
鈥?Adjustable maximum duty cycle at each channel
鈥?Built-in undervoltage lockout
鈥?High accuracy reference voltage: V
REF
: 1.00V鹵1%
V
REG
: 2.20V鹵1%
鈥?Adjustable built-in timer latch for short-circuit protection
鈥?Thin and small package: TSSOP-16
5
0.10
鹵0.05
1
0.105 to
0.145
s
Features
8
4.4
6.4
鹵0.2
0~8藲
0.5
鹵0.08
0.22
鹵0.02
0.65
s
Block diagram
Pin No. Pin symbol Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CP
SEL2
FB2
IN2鈥?/div>
IN2+
VCC
CS2
OUT2
OUT1
CS1
GND
RT
VREG
IN1鈥?/div>
FB1
SEL1
Timer latched short circuit protection
Selection of type of driven MOSFET (OUT2)
Ch.2 output of error amplifier
Ch.2 inverting input to error amplifier
Ch.2 non-inverting input to error amplifier
Power supply
Soft start for Ch.2
Ch.2 output
Ch.1 output
Soft start for Ch.1
Ground
Oscillator timing resistor
Regulated voltage output
Ch.1 inverting input to error amplifier
Ch.1 output of error amplifier
Selection of type of driven MOSFET (OUT1)
1.1max
1

FA3687V相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    THIN SMD HIGH-FREQUENCY CRYSTAL UNIT
    ETC
  • 英文版
    THIN SMD HIGH-FREQUENCY CRYSTAL UNIT
    ETC [ETC]
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    For Switching Power Supply Control
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  • 英文版
    For Switching Power Supply Control
    ETC [ETC]
  • 英文版
    For Switching Power Supply Control
    FUJI
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    For Switching Power Supply Control
    FUJI [Fuji...
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    FUJI
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    For Switching Power Supply Control
    FUJI [Fuji...
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    For Switching Power Supply Control
    FUJI
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