Datasheet

LTC4252-1/LTC4252-2
LTC4252A-1/LTC4252A-2
8
425212fe
For more information www.linear.com/LTC4252-1
Typical perForMance characTerisTics
I
TMR
vs I
DRN
∆I
TMRACC
/∆I
DRN
vs Temperature I
DRN
vs V
DRAIN
V
DRNL
vs Temperature V
DRNCL
vs Temperature V
PGL
vs Temperature
I
TMR
(Circuit Breaker, Sourcing)
vs Temperature
I
TMR
(Circuit Breaker, I
DRN
= 50µA,
Sourcing) vs Temperature
I
TMR
(Cooling Cycle, Sinking)
vs Temperature
TEMPERATURE (°C)
–55
I
TMR
(µA)
280
260
240
220
200
180
–15
25
45 125
425212 G22
–35 5
65
85
105
TIMER = 2V
I
DRN
= 0µA
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
550
I
TMR
(µA)
570
590
610
690
425212 G32
630
650
670
TIMER = 2V
I
DRN
= 50µA
TEMPERATURE (°C)
–55
I
TMR
(A)
10
9
8
7
6
5
4
3
2
1
0
–15
25
45 125
425212 G23
–35 5
65
85
105
TIMER = 2V
I
DRN
(mA)
0.001 0.01
0.1
I
TMR
(mA)
1
10
0.1 1 10
425212 G33
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
∆I
TMRACC
/I
DRN
(µA/µA)
425212 G34
9.0
8.8
8.6
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
TIMER ON
(CIRCUIT BREAKING,
I
DRN
= 50µA)
V
DRAIN
(V)
0 2 4 6 8 10 12 14 16
I
DRN
(mA)
100
10
1
0.1
0.01
0.001
0.0001
0.00001
425212 G25
I
IN
= 2mA
T
A
= –40°C
T
A
= 25°C
T
A
= 125°C
T
A
= 85°C
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
V
DRNL
(V)
425212 G35
2.60
2.55
2.50
2.45
2.40
2.35
2.30
2.25
2.20
FOR PWRGD STATUS (MS ONLY)
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
V
DRNCL
(V)
425212 G36
8.0
7.8
7.6
7.4
7.2
7.0
6.8
6.6
6.4
6.2
6.0
I
DRN
= 50µA
TEMPERATURE (°C)
–55 –35 –15 5 25 45 65 85 105 125
V
PGL
(V)
425212 G37
3.0
2.5
2.0
1.5
1.0
0.5
0
(MS ONLY)
I
PG
= 10mA
I
PG
= 5mA
I
PG
= 1.6mA