Datasheet

LTC1871
6
1871fe
TYPICAL PERFORMANCE CHARACTERISTICS
RUN Thresholds vs V
IN
RUN Thresholds vs Temperature R
T
vs Frequency
Frequency vs Temperature
Maximum Sense Threshold
vs Temperature
SENSE Pin Current
vs Temperature
INTV
CC
Load Regulation INTV
CC
Line Regulation
INTV
CC
Dropout Voltage
vs Current, Temperature
V
IN
(V)
0
1.2
RUN THRESHOLDS (V)
1.3
1.4
10 20
30
40
1871 G10
1.5
TEMPERATURE (°C)
–50
RUN THRESHOLDS (V)
1.30
1.35
150
1871 G11
1.25
1.20
0
50
100
–25
25
75
125
1.40
FREQUENCY (kHz)
100
R
T
(kΩ)
300
1000
1871 G12
10
100
200 1000
900
800700600
500
400
0
TEMPERATURE (°C)
–50
275
GATE FREQUENCY (kHz)
280
290
295
300
325
310
0
50
75
1871 G13
285
315
320
305
–25 25
100
125
150
TEMPERATURE (°C)
–50
140
MAX SENSE THRESHOLD (mV)
145
150
155
160
–25 0 25 50
1871 G14
75 100 125 150
TEMPERATURE (°C)
–50
25
SENSE PIN CURRENT (µA)
30
35
0
50
75
1871 G15
–25 25
100
125
150
GATE HIGH
V
SENSE
= 0V
INTV
CC
LOAD (mA)
0
INTV
CC
VOLTAGE (V)
5.2
30 50 80
1871 G16
5.1
5.0
10 20
40
60 70
V
IN
= 7.5V
V
IN
(V)
0
5.1
INTV
CC
VOLTAGE (V)
5.2
5.3
10 20
30
40
1871 G17
5.4
515
25
35
INTV
CC
LOAD (mA)
0
0
DROPOUT VOLTAGE (mV)
50
150
200
250
500
350
5
10
1871 G18
100
400
450
300
15
20
150°C
75°C
125°C
25°C
–50°C
0°C