Datasheet

LTC1155
3
1155fb
For more information www.linear.com/LTC1155
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 4.5V to 18V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LTC1155M (OBSOLETE) LTC1155C/LTC1155I
UNITSMIN TYP MAX MIN TYP MAX
t
OFF
Turn OFF Time V
S
= 5V, C
GATE
= 1000pF
Time for V
GATE
< 1V 10 36 60 10 36 60 µs
V
S
= 12V, C
GATE
= 1000pF
Time for V
GATE
< 1V 10 26 60 10 26 60 µs
t
SC
Short-Circuit Turn OFF Time V
S
= 5V, C
GATE
= 1000pF
Time for V
GATE
< 1V 5 16 30 5 16 30 µs
V
S
= 12V, C
GATE
= 1000pF
Time for V
GATE
< 1V 5 16 30 5 16 30 µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Quiescent current OFF is for both channels in OFF condition.
Note 3: Quiescent current ON is per driver and is measured independently.
TYPICAL PERFORMANCE CHARACTERISTICS
Input Threshold Voltage Drain Sense Threshold Voltage Low Side Gate Voltage
Standby Supply Current Supply Current/Side (ON) High Side Gate Voltage
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT (µA)
30
35
40
45
50
5 10 20
1155 G01
5
10
15
20
25
15
V
IN1
= V
IN2
= 0V
T
J
= 25°C
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT (µA)
600
700
800
900
1000
5 10 20
1155 G02
100
200
300
400
500
15
V
IN1
OR V
IN2
= 2V
T
J
= 25°C
SUPPLY VOLTAGE (V)
0
4
V – V (V)
16
18
20
22
24
5 10 20
1155 TPC03
6
8
10
12
14
15
S
GATE
SUPPLY VOLTAGE (V)
0
0.4
INPUT THRESHOLD VOLTAGE (V)
1.6
1.8
2.0
2.2
2.4
5 10 20
1155 G04
0.6
0.8
1.0
1.2
1.4
15
V
ON
V
OFF
SUPPLY VOLTAGE (V)
0
50
DRAIN SENSE THRESHOLD VOLTAGE (V)
110
120
130
140
150
5 10 20
1155 G05
60
70
80
90
100
15
SUPPLY VOLTAGE (V)
0
0
V
GATE
(V)
18
21
24
27
30
2 4 10
1155 G06
3
6
9
12
15
6
8