FA3635P Datasheet, PDF (2/5 Pages) Fuji Electric – For Switching Power Supply Control

FA3635P
s Absolute maximum ratings
Item
Symbol
Rating
Unit
Supply voltage
VCC
50.0
V
Error amplifier input voltage VIN
5.5
V
Total Power dissipation Pd
1.1
W
(Ta = 25°C)
Junction temperature
Tj
125
°C
Operating temperature
Top
–20 to +85°C
°C
Storage temperature
Tstg
–40 to +150
°C
s Recommended operating conditions
Item
Symbol Min. Max. Unit
Supply voltage
VCC
10.0 45.0
V
REF terminal by-pass capacitor CREF
0.047 0.22
µF
VCC terminal by-pass capacitor CO
470
µF
s Electrical characteristics (Ta=25°C, VCC=44V, CREF=0.1µF)
Reference voltage section
Item
terminal Voltage
Symbol
VREG
Test condition
CREF=0.1µF
Min.
3.00
Typ.
3.12
Max. Unit
3.24 V
Oscillator section
Item
Oscillation frequency
Frequency change with supply voltage
Frequency change with temperature
Symbol
fOSC
fdV
fdT
Test condition
VCC=10 to 45V
Ta=–20 to +85°C
Min.
70
Typ.
81
±1
±3
Max. Unit
100
kHz
±3
%
±5
%
Error amplifier section
Item
Input common mode voltage range
Open-loop gain
Unity-gain bandwidth
Output sink current
Output source current
Reference Voltage
Input threshold voltage (Pin 2)
Symbol
VICOM
AVOL
fT
IFBL
IFBH
Vref
VFB 0
VFB 100
Test condition
Voltage follower
VFB=Vref+0.05V
Voltage follower
VFB=Vref–0.05V
Voltage follower
VCC=10 to 45V
Ta=–20 to +85°C
Duty cycle=0%
Duty cycle=100%
Min.
0.2
3.0
Typ.
55
1.0
3.8
Max.
2.5
Unit
V
dB
MHz
mA
–140 –100 µA
0.97 1.00 1.03 V
0.5
0.6
0.7
V
2.3
2.5
2.7
V
Soft-start circuit section
Item
Input threshold voltage (Pin 7)
Charge current
Symbol
VCS 0
VCS 100
ICS
Test condition
Duty cycle=0%
Duty cycle=100%
Min.
0.5
2.3
–2.8
Typ.
0.6
2.5
–2.2
Max. Unit
0.7
V
2.7
V
–1.6 µA
Undervoltage lockout circuit section
Item
Operating voltage
Symbol
VUVLO
Test condition
Min.
5.0
Typ.
6.1
Max. Unit
8.5
V
2