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FA3647P Datasheet

  • FA3647P

  • PWM control IC with light load power saving function For Swi...

  • 21頁

  • FUJI

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FA3641P(N), FA3647P(N)
FA3641P(N), FA3647P(N)
s
Description
The FA3641P(N) and FA3647P(N) are the PWM type switching
power supply control ICs that can directly drive power MOSFET.
These ICs use a CMOS device with high dielectric strength
(30V) to implement low power consumption. They feature a
number of functions that are equivalent to those of the FA531X
series consisting of bipolar devices. In addition, they have a
function that reduces the oscillation frequency to suppress loss
of the power supply in light load mode and support an
overvoltage protection detecting Vcc voltage. These ICs are
most suitable for high-performance, energy-saving power
supplies that require low input power in standby or no-load
mode.
PWM control IC with light load power saving function
For Switching Power Supply Control
s
Dimensions, mm
SOP-8
8
5
1
4.9
4
+0.1
鈥?.05
6.0
鹵0.2
3.9
s
Features
鈥?Uses a newly developed CMOS process with high dielectric
strength (30V) for implementing low power consumption
鈥?Standby current of 2碌A(chǔ) or less (at Vcc=14V), and operating
current of 1.9mA (typ.)
鈥?Automatically reduces the oscillation frequency to suppress
loss of the power supply in light load mode
鈥?Overvoltage protection function detecting Vcc voltage
鈥?A drive circuit for connecting a power MOSFET directly
鈥?Output peak current: Source current 鈥?00mA
Sink current
+1A
鈥?Pulse-by-pulse overcurrent limiting function
鈥?Overload cutoff function (latch or non-latch mode selectable)
鈥?Output ON/OFF control function by external signal
鈥?Latch mode overvoltage shutdown function
鈥?Undervoltage lockout function
(16.5V ON / 9V OFF)
鈥?Reference voltage output (5V)
鈥?8-pin package (DIP/SOP)
0.4
鹵0.1
1.27
鹵0.2
DIP-8
8
5
1
9.3
1.5
4
6.4
3.0min 4.5max
3.3
0~8
擄
0.25
鈥?/div>
7.62
0~15
藲
5藲
0~1
2.54
鹵0.25
0.46
鹵0.1
58
1.7max
+0.1 5
0.0
0.20

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