Datasheet

LTC3865/LTC3865-1
8
3865fb
TYPICAL PERFORMANCE CHARACTERISTICS
Undervoltage Lockout Threshold
(INTV
CC
) vs Temperature
Oscillator Frequency
vs Input Voltage
Shutdown Current
vs Input Voltage
Shutdown Current vs Temperature
Quiescent Current vs Temperature
without EXTV
CC
TEMPERATURE (°C)
–50 –25
0
INTV
CC
VOLTAGE (V)
2
5
0
50
75
3865 G18
1
4
3
25
100
125
FALLING
RISING
INPUT VOLTAGE (V)
4
450
FREQUENCY (kHz)
470
490
510
10
16
22 28
3865 G19
34
530
550
460
480
500
520
540
40
INPUT VOLTAGE (V)
05
0
INPUT CURRENT (µA)
20
50
10
20
25
3865 G20
10
40
30
15
30 35
40
TEMPERATURE (°C)
–50 –25
0
QUIESCENT CURRENT (mA)
2
5
0
50
75
3865 G22
1
4
3
25
100
125
V
IN
= 15V
TEMPERATURE (°C)
–50 –25
0
SHUTDOWN CURRENT (µA)
20
50
0
50
75
3865 G21
10
40
30
25
100
125
V
IN
= 15V
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
TEMPERATURE (°C)
–50
100
OSCILLATOR FREQUENCY (kHz)
200
400
500
600
50
1000
3865 G17
300
0
–25
75 100
25 125
700
800
900
V
FREQ
= INTV
CC
V
FREQ
= 1.2V
V
FREQ
= 0V
TEMPERATURE (°C)
–50
REGULATED FEEDBACK VOLTAGE (V)
0.604
0.606
0.608
25 75
3865 G16
0.602
0.600
–25 0
50 100 125
0.598
0.596
Shutdown (RUN) Threshold
vs Temperature
TEMPERATURE (°C)
–50 –25
1.0
RUN PIN VOLTAGE (V)
1.2
1.5
0
50
75
3865 G15
1.1
1.4
1.3
25
100
125
OFF
ON