Datasheet

LT3796/LT3796-1
8
3796fa
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INTV
CC
Current Limit
vs Temperature
INTV
CC
vs V
IN
INTV
CC
Dropout Voltage vs
Current, Temperature
INTV
CC
vs Temperature
V
(CSP-CSN)
Offset Voltage with
Different I
CSOUT
vs V
S
INTV
CC
Current Limit vs V
IN
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise noted.
Current Sense Amplifier Gain
Error vs Temperature
V
(CSP-CSN)
Offset Voltage vs
Temperature
SENSE Current Limit Threshold vs
Duty Cycle
DUTY CYCLE (%)
0
120
115
37961 G17
20 40 60 80 100
110
105
100
SENSE THRESHOLD (mV)
V
IN
(V)
0
40
60
120
37961 G18
4020
60 80 100
20
0
80
100
INTV
CC
CURRENT LIMIT (mA)
TEMPERATURE (°C)
–50
70
80
100
37961 G19
0–25
25 50 75 150100 125
60
50
90
INTV
CC
CURRENT LIMIT (mA)
V
IN
= 24V
V
IN
= 48V
V
IN
(V)
0
9
37961 G20
20 40 60 80 100
7
8
6
5
4
3
2
1
0
INTV
CC
(V)
INTV
CC
LOAD (mA)
0
1800
V
IN
= 6V
37961 G21
5 10 15 20
125°C
25°C
–55°C
1600
1400
1200
1000
800
600
400
200
0
INTV
CC
DROPOUT (mV)
150°C
75°C
0°C
–40°C
TEMPERATURE (°C)
–50
37961 G22
–25 0 5025 75 125100 150
7.9
8.0
7.8
7.7
7.6
7.5
7.4
7.3
INTV
CC
(V)
V
S
(V)
0
2
37961 G23
20 40 60 80 100
1
0
–1
–2
V
(CSP-CSN)
(mV)
I
CSOUT
= 100µA
I
CSOUT
= 10µA
SEE NOTE 5 FOR TEST SETUP
I
CSOUT
= 50µA
TEMPERATURE (°C)
–50
0.6
37961 G24
–25 0 25 50 75 100 125 150
0.4
0.2
0
–0.2
V
(CSP-CSN)
(mV)
I
CSOUT
= 10µA
I
CSOUT
= 100µA
I
CSOUT
= 50µA
TEMPERATURE (°C)
–50
2.0
37961 G25
–25 0 25 50 75 100 125 150
1.0
1.5
0
–0.5
0.5
–1.0
–2
–1.5
GAIN ERROR (%)
I
CSOUT
= 10µA
I
CSOUT
= 100µA
I
CSOUT
= 50µA