FA5540 Fuji Electric holdings CO.,Ltd, FA5540 Datasheet - Page 9

• Manufacturer Part Number: FA5540
• Description: Fuji Switching Power Supply Control Ic
• Manufacturer: Fuji Electric holdings CO.,Ltd

Rev.0 July-2007
Over load protection part (FB pin)
Soft start part
Output part (OUT pin)
High voltage input part (VH pin)
Low voltage malfunction protection circuit (UVLO) part (VCC pin)
FB pin over load
detection Threshold level
OLP delay time
OLP output shutdown
time
Soft start time
L output voltage
H output voltage
Start up time
Fall down time
VH pin input current
VCC pin charging
current
ON threshold voltage
OFF threshold voltage
Hysteresis width
Startup circuit shutdown
voltage
Startup circuit reset
voltage
Item
Item
Item
Item
Item
Symbol
Symbol
Symbol
Symbol
Symbol
V
V
V
V
V
V
T
T
T
STRST1
V
I
I
V
I
I
CCOFF
STOFF
CCON
Hrun
VHO
pre0
pre1
HYS1
OLP
OLP
OFF
SFT
tr
tf
OH
OL
FA5540: Switching duration
after detecting over load.
FA5541: Switching duration
after detecting over load.
FA5542: Timer latch delay
time after detecting over load.
Switching
shutdown time
after T
I
I
V
I
V
CL=1nF, Tj=25°C
CL=1nF, Tj=25°C
V
V
V
Tj=25°C
V
Tj=25°C
V
Tj=25°C
Vcc increasing
Vcc decreasing
OL
OH
OH
FA5540/5541/5542
CC
CC
VH
CC
CC
CC
CC
=100mA
=-100mA
=-100mA
=400V,
=15V
=15V
>V
=0V, V
=0V, V
=VCCOFF, V
OLP
STOFF
Condition
Condition
Condition
Condition
Condition
period
VH
VH
=100V
=100V
FA5540
FA5541/42
VH
9
FA5540
FA5541
=100V
10.4
12.5
10.9
MIN
MIN
MIN
MIN
MIN
3.0
8.7
7.5
0.7
8.7
10
Fuji Electric Device Technology
1260
1400
TYP
TYP
TYP
13.5
TYP
TYP
10.2
12.4
10.2
11.4
180
200
-7.5
-6.3
3.3
1.0
1.0
7.6
9.0
1.2
50
40
20
MAX
MAX
MAX
MAX
MAX
11.7
10.5
13.9
11.7
3.6
2.0
1.7
30
Unit
Unit
Unit
Unit
Unit
mA
mA
mA
ms
ms
ms
µA
ns
ns
V
V
V
V
V
V
V
V