Datasheet

LTC1921
4
1921f
Undervoltage Response Time Overvoltage Response Time
Fuse Window Positive Threshold
vs Temperature
Fuse Window Negative Threshold
vs Temperature Output R
DS(ON)
vs Temperature
TEMPERATURE (°C)
FUSE POSITIVE THRESHOLD (V)
1921 G07
2.7
2.5
2.3
2.1
1.9
1.7
1.5
–50 –30 –10 10
30 50 70
90
TEMPERATURE (°C)
FUSE NEGATIVE THRESHOLD (V)
1921 G08
–2.0
–2.2
–2.4
–2.6
–2.8
–3.0
–3.2
–50 –30 –10 10
30 50 70
90
SUPPLY STEP FROM UNDERVOLTAGE
RECOVERY THRESHOLD (V)
4.6
10000
4.8
1921 G10
RESPONSE TIME (µs)
4.5
5.24.7
4.9 5.0 5.1
100
1000
T
A
= 25°C
SUPPLY STEP FROM OVERVOLTAGE
RECOVERY THRESHOLD (V)
1.5
10000
1.9
1921 G11
RESPONSE TIME (µs)
1.3
2.51.7
2.1 2.3
100
1000
T
A
= 25°C
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
OUTPUT R
DS(ON)
(Ω)
20
25
30
10 50
1921 G09
15
10
–30 –10
30 70 90
5
0
OUT A (OUT F = 0V)
OUT F, OUT B (OUT A = 0V)
V
A
= –35V
V
B
= –35V
I = –10mA