FA3641N Datasheet PDF - Fuji Electric
Part Number | FA3641N | |
Description | PWM control IC with light load power saving function For Switching Power Supply Control | |
Manufacturers | Fuji Electric | |
Logo | ||
There is a preview and FA3641N download ( pdf file ) link at the bottom of this page. Total 21 Pages |
Preview 1 page No Preview Available ! FA3641P(N), FA3647P(N)FA3641P(N), FA3647P(N)
PWM control IC with light load power saving function
For Switching Power Supply Control
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.
s Features
• Uses a newly developed CMOS process with high dielectric
strength (30V) for implementing low power consumption
• Standby current of 2µA or less (at Vcc=14V), and operating
current of 1.9mA (typ.)
• Automatically reduces the oscillation frequency to suppress
loss of the power supply in light load mode
• Overvoltage protection function detecting Vcc voltage
• A drive circuit for connecting a power MOSFET directly
• Output peak current: Source current –500mA
Sink current
+1A
• Pulse-by-pulse overcurrent limiting function
• Overload cutoff function (latch or non-latch mode selectable)
• Output ON/OFF control function by external signal
• Latch mode overvoltage shutdown function
• Undervoltage lockout function
(16.5V ON / 9V OFF)
• Reference voltage output (5V)
• 8-pin package (DIP/SOP)
s Dimensions, mm
SOP-8
85
14
4.9
0.4±0.1 1.27±0.2
DIP-8
8
5
1 9.3 4
1.5
2.54±0.25 0.46±0.1
7.62
0~15˚
0.25+–00.1.05
0~15˚
58
|
|
FA3641P(N), FA3647P(N)
s Characteristic curves (Ta=25˚C)
Oscillation frequency (fosc) vs.
timing resistor resistance (RT)
1000
100
VCC = 18V
FB = 1.5V
10
1 10 100
Rt [kΩ]
Oscillation frequency (fosc) vs.
junction temperature (Tj)
105
Rt = 47kΩ
104 FB = 2.5V
103
102
101
100
99
98
97
–50
0 50 100
Tj [°C]
Supply current (Icc) vs. supply voltage (Vcc)
Operating mode
2
1000
150
1.95
1.9
1.85
1.8
1.75
10
Rt = 47kΩ
FB = 0V
15
20
Vcc [V]
62
25
30
Oscillation frequency (fosc) vs. supply voltage (Vcc)
105
104
103
102
101
100
99
98
97
96
95
10
OUT = No load
Rt = 47 kΩ
FB = Open, CS = 3V
15 20
Vcc [V]
25
30
L-level output vltage (VOL) vs. supply voltage (Vcc)
1
0.8
0.6
0.4
0.2
Io = 100 mA
0
10 15 20
Vcc [V]
25
30
Supply current (Icc) vs. junction temperature (Tj)
Operating mode
2
1.95
1.9
1.85
1.8
1.75
–50
Rt = 47kΩ
Vcc = 18V
FB = 0V
0
50
Tj [°C]
100
150
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FA3641N electronic component. |
Information | Total 21 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ FA3641N.PDF Datasheet ] |
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Part Number | Description | MFRS |
FA3641 | The function is PWM control IC with light load power saving function For Switching Power Supply Control. Fuji Electric | |
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FA3641N | The function is PWM control IC with light load power saving function For Switching Power Supply Control. Fuji Electric | |
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