Datasheet

LTC3854
6
3854fb
TYPICAL PERFORMANCE CHARACTERISTICS
Current Sense Threshold
vs I
TH
Voltage
Shutdown Current
vs Input Voltage Shutdown Current vs Temperature
INTV
CC
Load Regulation INTV
CC
vs Temperature
RUN/SS Shutdown Threshold
vs Temperature
V
IN
(V)
4
SHUTDOWN CURRENT (µA)
30
5
10
15
20
25
0
28 32
3854 G19
40362416 20128
V
ITH
(V)
0
CURRENT SENSE THRESHOLD (mV)
60
10
0
20
30
40
50
–10
2
3854 G18
32.51.510.5
TEMPERATURE (°C)
–45
SHUTDOWN CURRENT (µA)
20
11
12
13
15
14
16
19
18
17
10
45 60
3854 G20
10575 90300 15–15–30
V
IN
= 15V
LDO CURRENT (mA)
0
INTV
CC
(V)
5.20
5.15
5.05
4.90
4.95
5.10
5.00
4.85
4.80
2010 30 35
3854 G21
40155 25
V
IN
= 15V
TEMPERATURE (°C)
–45
INTV
CC
(V)
5.20
5.15
5.05
4.90
4.95
5.10
5.00
4.85
4.80
15–15 45 60 75 90
3854 G22
1050–30 30
I
LOAD
= 10mA
V
IN
= 15V
TEMPERATURE (°C)
–45
RUN/SS (V)
1.40
1.35
1.25
1.15
1.30
1.20
1.10
15–15 45 60 75 90
3854 G23
1050–30 30
Oscillator Frequency
vs Temperature
Undervoltage Lockout Falling
Threshold vs Temperature Oscillator Frequency vs V
IN
TEMPERATURE (°C)
–40
FREQUENCY (kHz)
440
420
410
430
390
400
380
8040
3854 G15
12060200–20 100
TEMPERATURE (°C)
–40
UVLO (V)
4.0
3.7
3.8
3.6
3.9
3.1
3.2
3.3
3.4
3.5
3.0
8040
3854 G16
12060200–20 100
V
IN
(V)
5
FREQUENCY (kHz)
440
400
410
420
430
390
370
380
360
2515
3854 G17
402010 30 35