●Operating conditions (Ta=25℃)
Parameter
Symbol
Min.
Input voltage 1
EXTVCC
3.9 *1 *2
Input voltage 2
VCC
3.9 *1 *2
BOOT-SW voltage
BOOT-SW
4.5
Carrier frequency
OSC
250
Synchronous frequency
SYNC
OSC
Synchronous pulse duty
Duty
40
Min OFF pulse
TMIN
-
★This product is not designed to provide resistance against radiation.
*1 After more than 4.5V, voltage range.
*2 In case of using less than 6V, Short to VCC, EXTVCC and VREG5.
Typ.
Max.
Unit
12
30
V
12
30
V
5
VREG5
V
300
550
kHz
-
550
kHz
50
60
%
100
-
nsec
●Electrical characteristics (Unless otherwise specified, Ta=25℃ VCC=12V STB=5V EN1,2=5V)
Parameter
Symbol
Limit
Unit
Min.
Typ.
Max.
VIN bias current
IIN
-
5
10
mA
Shutdown mode current
IST
-
0
10
μA
[Error Amp Block]
Feedback reference voltage
Feedback reference voltage
(Ta=-40 to 105℃)
Open circuit voltage gain
VO input bias current
[FET Driver Block]
HG high side ON resistance
HG low side ON resistance
LG high side ON resistance
LG low side ON resistance
[Oscillator]
Carrier frequency
Synchronous frequency
[Over Current Protection Block]
CL threshold voltage
CL threshold voltage
(Ta=-40 to 105℃)
[VREG Block]
VOB
VOB+
Averr
IVo+
HGhon
HGlon
LGhon
LGlon
FOSC
Fsync
Vswth
Vswth+
0.792 0.800 0.808
V
0.784 0.800 0.816
V
-
46
-
dB
-
-
1
μA
-
1.5
-
Ω
-
1.0
-
Ω
-
1.5
-
Ω
-
0.5
-
Ω
270
300
330
kHz
-
500
-
kHz
70
90
110
mV
67
90
113
mV
VREG5 output voltage
VREG5
4.8
5
5.2
V
VREG33 reference voltage
VREG33
3.0
3.3
3.6
V
VREG5 threshold voltage
VREG_UVLO
2.6
2.8
3.0
V
VREG5 hysteresis voltage DVREG_UVLO 50
100
200
mV
[Soft start block]
Charge current
ISS
6.5
10
13.5
μA
Charge current
(Ta=-40 to 105℃)
ISS+
6
10
14
μA
Note: Not all shipped products are subject to outgoing inspection.
2/28
Conditions
VSTB=0V
Ta=-40 to 105℃ ※
RT=100 kΩ
RT=100 kΩ,SYNC=500kHz
Ta=-40 to 105℃ ※
IREF=6mA
IREG=6mA
VREG:Sweep down
VREG:Sweep up
VSS=1V
VSS=1V,Ta=-40 to 105℃ ※