Datasheet

5
LTC3717
sn3717 3717fs
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
3.0
RUN/SS THRESHOLD (V)
3.5
4.0
4.5
5.0
–25 0 25 50
3717 G16
75 100 125
LATCHOFF ENABLE
LATCHOFF THRESHOLD
TEMPERATURE (C)
–50
2.0
UNDERVOLTAGE LOCKOUT THRESHOLD (V)
2.5
3.0
3.5
4.0
–25 0 25 50
3717 G17
75 100 125
V
RNG
(V)
0.50
MAXIMUM CURRENT SENSE THRESHOLD (mV)
300
250
200
150
100
50
0
0.75
1.00 1.25 1.50
3717 G18
1.75 2.00
RUN/SS (V)
2.0
MAXIMUM CURRENT SENSE THRESHOLD (mV)
3.6
3717 G19
2.8 3.0 3.2 3.42.2
2.4
2.6
160
140
120
100
80
60
40
20
0
Maximum Current Sense Threshold
vs V
RNG
Voltage
Maximum Current Sense Threshold
vs RUN/SS Voltage, V
RNG
= 1V
RUN/SS Latchoff Thresholds
vs Temperature
Undervoltage Lockout Threshold
vs Temperature
INTV
CC
LOAD CURRENT (mA)
0
∆INTV
CC
(%)
–0.2
–0.1
0
40
3717 G14
–0.3
–0.4
–0.5
10
20
30
50
TEMPERATURE (°C)
–50 –25
–2
FCB PIN CURRENT (µA)
0
3
0
50
75
3717 G15
–1
2
1
25
100
125
PULL-UP CURRENT
PULL-DOWN CURRENT
INTV
CC
Load Regulation
RUN/SS Latchoff Thresholds
vs Temperature
TEMPERATURE (°C)
MAXIMUM CURRENT SENSE THRESHOLD (mV)
70
180
160
140
120
100
80
60
40
20
0
3717 G20
–50 130
–30 –10
10 30 50 90
110
TEMPERATURE (°C)
gm (ms)
70
1.50
1.40
1.30
1.20
1.10
1.00
0.90
0.80
0.70
3717 G21
–50 130
–30 –10
10 30 50 90
110
Error Amplifier gm
vs Temperature
Maximum Current Sense Threshold
vs Temperature, V
RNG
= 1V