Datasheet

LT3487
5
3487f
TEMPERATURE (°C)
–50
I
RUN/SS
(µA)
2.0
2.5
3.0
25 75
3487 G16
1.5
1.0
–25 0
50 100 125
0.5
0
V
IN
(V)
2
0
RUN/SS PIN CURRENT (µA)
0.5
1.0
1.5
2.0
46810
3487 G17
12 14 16
Output Disconnect Current Limit
Switch Current Limits
Switch Current Limits
vs Duty Cycle
Switch Current Limits vs RUN/SS
Voltage (at 55% Duty Cycle)
RUN/SS Pin Current in Shutdown
TYPICAL PERFOR A CE CHARACTERISTICS
UW
RUN/SS Pin Current
vs V
IN
in Shutdown
UVLO Voltage
TEMPERATURE (°C)
–50
100
CURRENT LIMIT (mA)
125
150
175
200
–25 0 25 50
3487 G12
75 100 125
V
CAP
= 15V
V
BAT
= 3.6V
V
POS
= 0V
TEMPERATURE (°C)
–50
CURRENT LIMITS (mA)
1150
25
3487 G13
1000
900
–25 0 50
850
800
1200
1100
1050
950
75 100 125
NEG CHANNEL
POS CHANNEL
DUTY CYCLE (%)
0
0
CURRENT LIMITS (mA)
200
400
600
800
1000
1200
20 40 60 80
3487 G14
100
NEG CHANNEL
P0S CHANNEL
RUN/SS (mV)
0
0
CURRENT LIMITS (mA)
200
400
600
800
1000
250
500 750 1000
3487 G15
1250 1500
NEG CHANNEL
P0S CHANNEL
TEMPERATURE (°C)
–50 –25
2.0
UVLO (V)
2.2
2.5
0
50
75
3487 G18
2.1
2.4
2.3
25
100
125
TEMPERATURE (°C)
–50
V
RUN/SS
(mV)
200
250
300
25 75
3487 G19
150
100
–25 0
50 100 125
50
0
RUN/SS Shutdown Threshold