FA551 Datasheet, PDF (2/22 Pages) List of Unclassifed Manufacturers – CMOS IC For Switching Power Supply Control

FA551X
■ Absolute maximum ratings
Item
Supply Voltage
Low impedance source (ICC>15mA)
Internal zener clamp (ICC<15mA)
Output peak current
FB pin input voltage
IS pin input voltage
REF pin source current
CS pin sink current
Total power dissipation (Ta=25˚C)
Ambient temperature
Maximum junction temperature
Storage temperature
Symbol
VCC1
VCC2
IOUT
VFB
VIS
IREF
ICS
Pd
Ta
Tj
Tstg
Rating
30
Self limiting
±1.5
–0.3 to 5.0
–0.3 to 5.0
–10
+2.0
800 (DIP-8)
400 (SOP-8)
–30 to +85
125
–40 to +150
Note: There are cases where the IC cannot output the rating current depending on Vcc voltage or temperature.
Unit
V
V
A
V
V
mA
mA
mW
˚C
˚C
˚C
Maximum power dissipation curve
400mW (SOP)
800mW (DIP)
0
–30
25
85
125
Ambient temperature Ta [˚C]
■ Recommended operating conditions
Item
Supply voltage
Oscillation frequency
REF-GND capacitor
Soft start capacitor
Symbol
VCC
fOSC
Cref
CS
Min.
10
10
0.1
0.01
Typ.
0.47
Max.
Unit
28
V
500
kHz
µF
1
µF
2