LTC3890
Typical perForMance characTerisTics
Regulated Feedback Voltage
vs Temperature
TRACK/SS Pull-Up Current
vs Temperature
Shutdown (RUN) Threshold
vs Temperature
1.40
1.35
808
1.10
1.05
1.00
0.95
806
804
RUN1 RISING
1.30
1.25
1.20
1.15
1.10
1.05
1.00
RUN2 RISING
802
800
798
796
794
RUN1 FALLING
RUN2 FALLING
792
0.90
–50 –25
75 100 125 150
TEMPERATURE (°C)
–75
0
25 50
25
100 125 150
50 75
–75 –50 –25
0
–75 –50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
TEMPERATURE (°C)
3890 G21
3890 G20
3890 G19
SENSE– Pin Total Input Bias Current
vs Temperature
Shutdown Current
vs Input Voltage
Oscillator Frequency
vs Temperature
600
550
500
450
800
700
600
500
400
300
200
100
0
30
25
20
15
10
5
FREQ = INTV
CC
V
> INTV + 0.5V
CC
OUT
400
350
300
FREQ = GND
25 50
V
< INTV – 0.5V
CC
OUT
0
–100
0
–50 –25
75 100 125 150
–75
25 50
75 125 150
100
–75 –50 –25
0
5
10 15 20 25 30 35 40 45 50 55 60 65
TEMPERATURE (°C)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
3890 G22
3890 G23
3890 G24
Undervoltage Lockout Threshold
vs Temperature
Oscillator Frequency
vs Input Voltage
Shutdown Current vs Temperature
22
20
18
4.2
4.1
4.0
3.9
3.8
3.7
3.6
356
354
352
350
348
V
= 12V
FREQ = GND
IN
RISING
16
14
12
10
8
FALLING
346
344
–75 –50 –25
0
25 50 75 100 125 150
–75
–25
0
25 50 75 100 125 150
–50
5
10 15 20 25 30 35 40 45 50 55 60 65
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
3890 G27
3890 G26
3890 G25
3890fb
7
Linear Systems [ Linear Systems ]
