FA7610CP Datasheet, PDF (3/7 Pages) Fuji Electric – FA7610CPN/FA7612CPN/FA7617CPN Bipolar IC Switching Power Supply Control

FA7610CP(N)/FA7612CP(N)/FA7617CP(N)
s Absolute maximum ratings (Ta = 25°C)
Item
Supply voltage
Reference voltage output current
Output current
Total power dissipation
Operating temperature
Storage temperature
Symbol
VCC
IOR
IO
Pd
Topr
Tstg
Rating
FA7610C
22
5
±50
400
–20 to +85
–40 to +150
Unit
FA7612C/17C
22
V
5
mA
80
mA
400
mW
–20 to +85 °C
–40 to +150 °C
s Recommended operating conditions
Item
Supply voltage
Feedback resistance
Oscillator timing capacitor
Oscillator timing resistance
Oscillation frequency
Symbol
FA7610C
FA7612/17C
Unit
Min.
Max.
Min.
Max.
VCC
3.6
20
3.6
20
V
RNF
100
100
kΩ
CT
220
22,000
220
22,000
pF
RT
10
100
10
100
kΩ
fOSC
5
200
5
500
kHz
s Electrical characteristics (Ta = 25°C, VCC = 6V, RT = 33kΩ, CT = 1000pF)
Reference voltage section Common to FA7610C/12C/17C
Item
Output voltage
Line regulation
Load regulation
Output voltage variation due to temperature change
Symbol
VREF
LINE
LOAD
VTC1
VTC2
Test condition
Min.
IOR = 1mA
2.528
VCC = 3.6 to 20V, IOR = 1mA
IOR = 0.1 to 1mA
Ta = –20 to +25°C
–1
Ta = +25 to +85°C
–1
Typ.
2.580
4
1
Max.
2.632
12
6
1
1
Unit
V
mV
mV
%
%
Oscillator section Common to FA7610C/12C/17C
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.
100
Typ.
111
1
5
Max. Unit
122
kHz
%
%
Error amplifier section Common to FA7610C/12C/17C
Item
Reference voltage
Input bias current
Open-loop voltage gain
Unity-gain bandwidth
Maximam output voltage (Pin 2)
Output source current (Pin 2)
Symbol
VB
IB
AV
GB
VOM+
VOM–
IOM+
Test condition
RNF = 100kΩ
RNF = 100kΩ
VOM = 1V
Min. Typ.
0.515 0.525
5
70
0.6
VREF–0.2
40
85
Max.
0.535
100
200
200
Unit
V
nA
dB
MHz
V
mV
µA
PWM comparator section
Item
Input threshold voltage (pin 2)
Input threshold voltage (pin 2)
Maximum duty cycle
Symbol Test condition FA7610C
Min. Typ.
VTH0 Duty cycle = 0%
0.85
VTH50 Duty cycle = 50%
1.1
αM
(Pin 2 = 1.2V)
58 64
Max.
0.95
75
FA7612C
Min. Typ.
0.85
1.1
100
Max.
0.95
FA7617C
Min. Typ.
0.85
1.1
63 67
Unit
Max.
0.95 V
V
71 %
3