FA7611CP Datasheet, PDF (2/6 Pages) Fuji Electric – Bipolar IC For Switching Power Supply Control

s Absolute maximum ratings
Item
Symbol
Rating
Unit
Supply voltage
VCC
22
V
Reference voltage output current IOR
5
mA
Output current
IO
±50
mA
Total power dissipation
Pd
400
mW
Operating temperature
Topr
–20 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
FA7611CP(E)
s Recommended operating conditions
Item
Supply voltage
Feedback resistance
Oscillator timing capacitor
Oscillator timing resistance
Oscillation frequency
Symbol
VCC
RNF
CT
RT
fOSC
Min.
3.6
100
220
10
5
Max.
20
22,000
100
200
Unit
V
kΩ
pF
kΩ
kHz
s Electrical characteristics (Ta = 25°C, VCC = 6V, RT = 33kΩ, CT = 1000pF)
Reference voltage section
Item
Output voltage
Line regulation
Load regulation
Output voltage variation due to temperature change
Symbol
VREF
LINE
LOAD
VTC1
VTC2
Test condition
Min. Typ. Max. Unit
IOR = 1mA
2.425 2.475 2.525 V
VCC = 3.6 to 20V, IOR =1mA
4
12
mV
IOR = 0.1 to 1mA
1
6
mV
Ta = –20 to +25°C
–1
1
%
Ta = +25 to +85°C
–1
1
%
Oscillator section
Item
Oscillation frequency
Frequency variation 1 (due to supply voltage change)
Frequency variation 2 (due to temperature change)
Symbol
fOSC
fdV
fdT
Test condition
CT = 1000pF, RT = 33kΩ
VCC = 3.6 to 20V
Ta = –20 to +85°C
Min.
95
Typ.
115
1
5
Max. Unit
135
kHz
%
%
Error amplifier section
Item
Reference voltage
Input bias current
Open-loop voltage gain
Unity-gain bandwidth
Maximum output voltage (Pin 6 and Pin 12)
Output source current (Pin 6 and Pin 12)
Symbol
VB
IB
AV
GB
VOM+
VOM–
IOM+
Test condition
RNF = 100kΩ
RNF = 100kΩ
VOM = 1V
Min. Typ.
0.484 0.494
5
70
0.6
VREF–0.2
40
85
Max.
0.504
100
200
200
Unit
V
nA
dB
MHz
V
mV
µA
PWM comparator section
Item
Input threshold voltage (Pin 6 and Pin 12)
Input threshold voltage (Pin 6 and Pin 12)
Symbol
VTH0
VTH50
Test condition
Duty cycle = 0%
Duty cycle = 50%
Min.
Typ.
0.85
1.1
Max. Unit
0.95 V
V
2