FA5546 Datasheet, PDF (11/27 Pages) Fuji Electric – Switching Power Supply Control IC

FA5546/47
Latch cutoff threshold voltage (VthLAT)
vs. Junction temperature (Tj)
1.15
1.10
1.05
1.00
0.95
-50
0
50
100
Tj (℃)
Output shutdown threshold voltage (VthFB0)
vs. Junction temperature
0.44
0.42
0.40
0.38
0.36
150
-50
0
50
100
150
Tj (℃)
FB pin input resistance (Rfb)
vs. Junction temprature (Tj)
22
21
20
19
18
-50
0
50
100
Tj (℃)
-220
FB pin source current (Ifb0)
vs. Junction temperature (Tj)
-230
-240
-250
-260
-270
VFB=0V
-280
150
-50
0
50
100
150
Tj (℃)
OLP detection voltage (VthOLP)
vs. Junction temperature (Tj)
3.2
3.1
VIS=0V
3.0
2.9
2.8
2.7
2.6
2.5
2.4
-50
0
50
100
150
Tj (℃)
Current sense maximum input threshold voltage(VthIS)
vs. Junction temperature (Tj)
-0.90
-0.92
-0.94
-0.96
-0.98
-1.00
-50
0
50
100
150
Tj (℃)
Fuji Electric Co., Ltd.
AN-027E Rev.0.4
April -2011
11
http://www.fujielectric.co.jp/products/semiconductor/