Electrical Characteristics: -40˚C < TA < 85˚C; -40˚C < TJ < 125˚C; 3V < VC < 15V; 4.7V < VCC < 15V; Rt=12K, Ct=390pF
Unless otherwise stated.
PARAMETER
ꢀ Overcurrent Protection
Overcurrent Threshold
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I
SET = 0.5V, Ramp ISENSE
0.475
50
0.500
90
0.525
125
V
I
SENSE to GATE Delay
ns
ꢀ External Voltage Monitors
Overvoltage Threshold
OV increasing
OV = 2.15V
1.9
2.0
2.1
V
Overvoltage Hysteresis
Current
10.0
12.5
15.0
µA
Undervoltage Threshold
Undervoltage Hysteresis
UV increasing
0.95
25
1.00
75
1.05
125
V
mV
ꢀ Soft Start (SS)
Charge Current
SS = 2V
SS = 2V
40
4
50
5
70
7
µA
µA
Discharge Current
Charge Voltage
2.8
3.0
0.3
3.4
V
V
V
V
Discharge Voltage
Soft Start Clamp Offset
Soft Start Fault Voltage
0.25
1.15
0.35
1.35
0.2
FF = 1.25V
1.25
0.1
OV = 2.15V or LV = 0.85V
ꢀ Blanking
Blanking Time
SS Blanking Disable
Threshold
50
150
3.0
250
3.3
ns
V
VFB < 1
2.8
COMP Blanking Disable
Threshold
VFB < 1, SS > 3V
2.8
3.0
3.3
V
ꢀ Thermal Shutdown
Thermal Shutdown
Thermal Hysteresis
(Note 1)
(Note 1)
125
5
150
10
180
15
˚C
˚C
Note 1: Guaranteed by design, not 100% tested in production.
5
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
