FA5640 Datasheet, PDF (10/35 Pages) Fuji Electric – Fuji Switching Power Supply Control IC

FA5640/41/42
Soft start part
Item
Soft-start time
Symbol
Conditions
Tsoft at start-up only
MIN.
0.7
TYP.
1.0
MAX. Unit
1.3
ms
Standby-mode function (IS pin)
Item
Stand-by detection threshold
voltage at IS pin
Stand-by detection timing
Symbol
VISstb
Conditions
Read timing is turn-off
after Tstb.
MIN.
0.5
Tstb Delay from turn-off
1.5
TYP. MAX. Unit
0.55
0.6
V
2.0
2.5
us
Maximum threshold voltage at
stand-by
VthISsｔ1
VthISsｔ2
Vfb=3.2V
Vvh=141V
FA5640,FA5641
Vfb=3.2V
Vvh=324V
Other protection part
Item
Maximum on pulse width
Minimum switching frequency
Symbol
Tonmax
Fmin
Conditions
Vis=0V, Vis=2V
Vzcd=0V
FA5641
Vis=0V,Vfb=3.2V
0.12
0.15
0.18
V
0.07
0.10
0.13
V
MIN.
20
TYP.
24
MAX. Unit
28
us
20.8
25
30.3 kHz
Drive Output part (OUT pin)
Item
OUT Low voltage
OUT High voltage
Rise time
Fall time
Symbol
VOL
VOH
tr
tf
Condition
IOL=100mA
Vcc=15V
IOH=-100mA,
Vcc=15V
Vcc=15V, CL=1nF
Tj=25℃
Vcc=15V, CL=1nF
Tj=25℃
MIN.
0.5
TYP.
1.0
MAX. Unit
2.0
V
12
13.2
14.5
V
20
40
80
ns
12.5
25
60
ns
Fuji Electric Co., Ltd.
AN-064E Rev.1.1
April 2011
10
http://www.fujielectric.co.jp/products/semiconductor/