Datasheet

LT3756/LT3756-1/LT3756-2
6
375612fb
Typical perForMance characTerisTics
INTV
CC
Voltage vs V
IN
INTV
CC
Current Limit
vs Temperature INTV
CC
Voltage vs Temperature
Quiescent Current vs V
IN
SENSE Current Limit Threshold
vs Temperature
SHDN/UVLO Threshold
vs Temperature
T
A
= 25°C, unless otherwise noted.
375612 G11
SENSE THRESHOLD (mV)
TEMPERATURE (°C)
90
100
110
95
105
–50 0
50
75
–25
25
100
150125
375612 G12
SHDN/UVLO VOLTAGE (V)
TEMPERATURE (°C)
1.18
1.22
1.28
1.20
1.24
1.26
SHDN/UVLO RISING
SHDN/UVLO FALLING
–50 0
50
75
–25
25
100
150125
Gate Rise/Fall Time
vs Capacitance
SENSE Current Limit Threshold
vs Duty Cycle V
(ISP-ISN)
Threshold vs FB Voltage
V
IN
(V)
0
V
IN
CURRENT (mA)
1.0
2.0
0.5
1.5
375612 G10
0 20 40 8060 100
PWM = 0V
V
IN
(V)
V
INTVCC
(V)
375612 G13
0
4
8
2
6
0 20 40 8060
100
375612 G14
INTV
CC
CURRENT LIMIT (mA)
TEMPERATURE (°C)
10
14
20
12
16
18
–50 0
50
75
–25
25
100
150125
375612 G15
INTV
CC
(V)
TEMPERATURE (°C)
–50 0
50
75
–25
25
100
150125
7.0
7.2
7.4
7.1
7.3
DUTY CYCLE (%)
90
SENSE THRESHOLD (mV)
100
110
95
105
375612 G16
0 25 50 75 100
FB VOLTAGE (V)
375612 G17
1.2 1.22 1.24 1.26 1.28
0
50
125
25
75
100
V
(ISP –ISN)
THRESHOLD (mV)
V
CTRL
= 2V
CAPACITANCE (nF)
375612 G18
0 2 4 6 108
0
40
100
20
60
80
TIME (ns)
GATE RISE
TIME
GATE
FALL TIME
10% TO 90%