FA7764 Datasheet, PDF (8/18 Pages) Fuji Electric – FUJI Power Supply Control IC

FA7764
(6)Under voltage lockout circuit section (VCC pin)
Item
Symbol
Condition
ON threshold voltage
OFF threshold voltage
Hysteresis voltage
V_UVLOON
V_UVLOOFF
V_UVLOHYS
IC is enabled.
IC is disabled.
MIN.
4.9
0.4
TYP.
6.9
5.9
1.0
MAX.
8.2
Units
V
V
V
(7)ON/OFF control section (ENB pin)
Item
Symbol
Condition
MIN. TYP. MAX. Units
Source current of ENB
ON threshold voltage
OFF threshold voltage
I_ENB
V_ENBON
V_ENBOFF
V_ENB=0V
IC is enabled
IC is disabled *7
10
15
μA
1
V
2
V
*7 External voltage input is not necessary to the ENB pin because it clamps to the self-limited voltage near 5V.
(8)Thermal shutdown section
Item
Symbol
Thermal shutdown enable
Thermal shutdown disable
T_OHPON
T_OHPON
Condition
Output is disabled
Output is enabled
MIN.
125
TYP.
135
115
MAX.
Units
°C
°C
(9)Output section (OUT pin)
Item
Symbol
On resistance of built-in
P-channel MOSFET
R_ONP
Current limit
Short circuit detect current
Open diode detect voltage
Maximum duty limit
I_OLMT12
I_OLMT42
I_OSH
V_DOP
D_MAX
Condition
V_CC=10V，I_DS=1.0A
Ta=85°C
V_CC=10V，I_DS=1.0A
V_CC=12V
V_CC=42V
V_CC=42V
MIN.
2.3
2.5
4.0
-10
TYP.
0.8
1.2
3.0
3.5
6.0
-9
95
MAX. Units
1.0
Ω
1.5
Ω
3.7
A
5.0
A
8.5
A
-8
V
%
(10)Overall section (VCC,VBIAS pin)
Item
Symbol
Condition
Switching at non-load
Supply current (VCC)
I_CCVCC
(at VBIAS<3.1V)
Switching at non-load
(at VBIAS>3.1V)
I_CCSTBVCC Stand by (ENB=open)
Switching at non-load
Supply current (VBIAS)
I_CCVBIAS
(at VBIAS<3.1V)
Switching at non-load
(at VBIAS>3.1V)
I_CCSTBVBIAS Stand by (ENB=open)
MIN.
TYP.
0.85
0.5
50
0
MAX. Units
1.5
mA
1.0
100 μA
20
μA
0.5
0.8 mA
0
20
μA
Fuji Electric Systems Co., Ltd.
AN-059E Rev.1.0
8
June.2010
http://www.fujielectric.co.jp/fdt/scd/