NIS5102
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4
ELECTRICAL CHARACTERISTICS (continued) (V
CC
= 12 V, R
LIMIT
= 36 W, C
Charge
= 100 pF, T
J
= 25°C unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
CURRENT LIMIT
Current Limit (Short Circuit, R
LIMIT
= 36 W)
I
LIM1
3.8 4.8 5.8 A
Current Limit (Overload, R
LIMIT
= 36 W) (Note 3)
I
LIM2
7.0 7.8 8.6 A
ENABLE/TIMER
Enable Voltage (Turn-On)
V
ENon
2.2 - - V
Enable Voltage (Turn-Off) V
ENoff
- - 1.6 V
Charging Current (Into External Capacitor) I
Charge
65 77 88
mA
Turn-on Delay (Time from Enable High to I
source
= 100 mA) t
delay
- 2.2 - ms
CHARGE PUMP
C
Charge
(Voltage on Pin 5 with Respect to Ground)
V
CC
= 18 Vdc
V
Ccharge
-
-
18
26
-
-
V
V
POWER GOOD
Power Good → High Z Signal when FET is Fully Enhanced
- - - - -
Low Z State Output Voltage (I
Sink
= 2 mA) Vpin7 - 230 300 mV
Leakage Current (Vpin7 = 12 V, High Z State) I
Leak
- 2.0 10
mA
Power Good Delay
(Time from Power FET is Fully Enhanced to Power Good FET Changing State)
t
pwrgood
- 15 - ms
TOTAL DEVICE
Bias Current (Operational, V
CC
= 12 V) I
Bias
- 1.3 2.0 mA
Bias Current (Non-operational, V
CC
= 7 V)) I
Bias
- 400 700
mA
Minimum Operating Voltage Vcc
min
- 8.5 9.0 V
Enable/Timer
Input
Threshold
Source Voltage
Output Current
Figure 2. Timing Diagram for External Enabled Delay
