Datasheet

13.50
13.75
14
14.25
14.50
9 19 29 39 49 59 69 79
− Gate Output Voltage − V
T
J
= −405C
T
J
= 255C
T
J
= 1255C
V
CC
− Supply Voltage − V
V
Gate
18
20
22
24
26
28
30
32
9 19
29
39 49 59 69 79
− Timer Pullup Current −
T
J
= −405C
T
J
= 255C
T
J
= 1255C
I
Timer
Aµ
V
CC
− Supply Voltage − V
75
95
115
135
155
175
195
215
9 19 29 39 49 59 69 79
T
J
= −405C
T
J
= 255C
T
J
= 1255C
− Gate Pulldown Current − mA
I
Gate
V
CC
− Supply Voltage − V
0
200
400
600
800
1000
1200
9 14 19 24 29 34 39 44 49
T − Current Limit Response Time − nS
T
J
= −405C
T
J
= 255C
T
J
= 1255C
V
CC
− Supply Voltage − V
TPS2490
TPS2491
SLVS503D –NOVEMBER 2003–REVISED JULY 2012 www.ti.com
TYPICAL CHARACTERISTICS (continued)
GATE PULLDOWN CURRENT CURRENT LIMIT RESPONSE TIME
vs vs
SUPPLY VOLTAGE SUPPLY VOLTAGE
(EN = 4 V, V(vcc – sense) = 200 mV) (EN = 4 V, V(vcc – sense) = 200 mV)
Figure 6. Figure 7.
GATE OUTPUT VOLTAGE TIMER PULLUP CURRENT
vs vs
SUPPLY VOLTAGE SUPPLY VOLTAGE
Figure 8. Figure 9.
6 Copyright © 2003–2012, Texas Instruments Incorporated