FA7622CP Datasheet, PDF (2/8 Pages) Fuji Electric – Bipolar IC For Switching Power Supply Control

FA7622CP(E)
s Absolute maximum ratings
Item
Supply
voltage
Voltage boost
circuit not used
Voltage boost
circuit used
Supply voltage
ON/OFF pin voltage
Out pin output current
Total power dissipation
Junction temperature
Operating temperature
Storage temperature
Symbol
VCC1
VCC1
VCC2
VON/OFF
IOUT
Pd
Tj
Topr
Tstg
Rating
28
20
28
–0.3 to +7
±600
650
125
–30 to +85
–40 to +150
Unit
V
V
V
V
mA
mW
°C
°C
°C
s Recommended operating conditions
Item
Symbol Min. Max. Unit
Supply
Voltage boost
VCC1
3.6 26
V
voltage
circuit not used
Voltage boost
VCC1
3.6 18
V
circuit used
Feedback resistance
Timing capacitance
RNF
100
kΩ
CT
50 2200 pF
Timing resistance
RT
24 100
kΩ
Oscillation frequency
fOSC
50 1000 kHz
s Electrical characteristics (Ta = 25°C, VCC = 6V, RT = 36kΩ, CT = 180pF)
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
2.400 2.475 2.550 V
VCC = 3.6 to 26V, IOR = 1mA
5
15
mV
IOR = 0.1 to 1mA
2
mV
Ta = –30 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 = 180pF, RT = 36kΩ
VCC = 3.6 to 26V
Ta = –30 to +25°C
Min.
100
Typ.
110
1
5
Max. Unit
120
kHz
%
%
Error amplifier section (ch. 1)
Item
Reference voltage
Input bias current
Open-loop voltage gain
Unity-gain bandwidth
Maximum output voltage
Output source current
Symbol
VB
IB
AVO
fT
VOH
VOL
IOH
Test condition
No load
No load
VOH = 0V
Min.
0.832
1.8
30
Typ.
0.858
5
40
1.0
60
Max.
0.884
100
300
90
Unit
V
nA
dB
MHz
V
mV
µA
Error amplifier section (ch. 2)
Item
Input offset voltage
Input bias current
Common-mode input voltage
Open-loop voltage gain
Unity-gain bandwidth
Maximum output voltage
Output source current
Symbol
VIO
IB
VCOM
AVO
fT
VOH
VOL
IOH
Test condition
No load
No load
VOH = 0V
Min.
0
70
1.8
40
Typ.
2
5
1.0
80
Max.
10
100
1.0
300
120
Unit
mV
nA
V
dB
MHz
V
mV
µA
2