FA5604 Datasheet, PDF (8/31 Pages) Fuji Electric – FUJI Power Supply Control IC

FA5604/5605/5606
Latch Protection Section (CS pin)
Item
Latch threshold voltage
Latch delay time
Clamp voltage of CS pin
Symbol
VthLAT
TpdLAT
VCSP
Conditions
ICS=2mA
MIN.
6.6
35
13
TYP.
7.3
50
15
MAX. Unit
7.7
V
70
s
17
V
Frequency Control Section at Overload (VF pin)
Item
Symbol
Conditions
Threshold voltage of frequency
VVF FB=open
reducing at overload
Switching frequency at overload
FoscL1
FoscL2
Rt=12kΩ
FB=open, VF=5V
Rt=12kΩ
FB=open, VF=2V
FA5604
FA5605/06
FA5604
FA5605/06
Difference of switching frequency
Rt=24kΩ
Foscdiff2
FB=open, VF=5V
FA5604
FA5605/06
VF voltage at timer enable
VFcstim
VF voltage at timer reset
VFcstmr FB=open,VF increasing
Hysteresis width at timer
Vhyscst VFcstmr-VFcstim
Input bias current at VF pin
IVF VF=0V
MIN.
3.9
145
155
90
110
-15
-10
2.7
3.15
0.45
-2
TYP.
4.2
165
180
115
140
-7.5
-5
3.0
3.5
0.5
-0.5
MAX. Unit
4.5
V
Fosc
kHz
Fosc
160
kHz
170
0
%
0
3.3
V
3.85
V
0.55
V
-
A
Hiccup Section (CS pin)
Item
Threshold voltage of timer
Voltage width of timer
Difference voltage between
timer-upper voltage and Latch
threshold voltage
Timer Charge current
Timer Charge current
Delay time of OLP
The time of OLP
Time ratio of OFF/ON time
Symbol
VcstimH
VcstimL
VcstimW
Conditions
MIN.
4.9
3.3
1.5
TYP.
5.7
3.8
1.9
MAX. Unit
6.5
V
4.3
V
2.3
V
VcsdLT VCC=18V, Ccs=10nF
0.9
1.6
2.5
V
Icschg2
-13
-10
-7
A
Icsdis2
7
10
13
A
Tolp1 VCC=18V, Ccs=10nF
179
256
333
ms
Tolp2
VCC=18V,
Ccs=10nF
FA5604/06 1225 1792 2330
ms
FA5605
2688 3840 4992
Konoff Tolp2/Tolp1
FA5604/06
-
7
-
－
FA5605
-
15
-
Under Voltage Lock Out Section (VCC pin)
Item
Symbol
Startup threshold voltage
VCCON
Shutdown threshold voltage
VCCOFF
UVLO hysteresis width
VCCHYS
Conditions
MIN.
15.5
8.5
6
TYP.
17.5
9.7
7.8
MAX. Unit
19.5
V
10.5
V
10
V
Fuji Electric Co., Ltd.
AN-033E Rev.1.2
April-2011
8
http://www.fujielectric.co.jp/products/semiconductor/