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