LTC3774 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
일치하는 목록
LTC3774 Datasheet PDF : 38 Pages
| |||
LTC3774
TYPICAL PERFORMANCE CHARACTERISTICS
Maximum Current Sense Threshold
vs Common Mode Voltage
35
30
25
20
15
10
5
INTVCC
3/4 INTVCC
1/4 INTVCC
0
1/2 INTVCC
0
0 0.5 1 1.5 2 2.5 3 3.5
COMMON MODE VOLTAGE (V)
3774 G01
Maximum Current Sense
Threshold vs Feedback Voltage
(Current Foldback)
35
ILIM = INTVCC
30
ILIM = 3/4 INTVCC
25
ILIM = 1/2 INTVCC
20
ILIM = 1/4 INTVCC
15
ILIM = 0
10
5
0
0 0.1 0.2 0.3 0.4 0.5 0.6
FEEDBACK VOLTAGE (V)
3774 G02
Current Sense Threshold
vs ITH Voltage
35
ILIM = 0
30
ILIM = 1/4 INTVCC
ILIM = 1/2 INTVCC
25
ILIM = 3/4 INTVCC
ILIM = INTVCC
20
15
10
5
0
–5
–10
0
0.25 0.5 0.75 1 1.25 1.5 1.75 2
V(ITH) (V)
3774 G03
Input Quiescent Current
vs Input Voltage
12
Shutdown Current
vs Input Voltage
60
INTVCC Line Regulation
6
10
50
5
8
40
4
6
30
3
4
20
2
2
10
1
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3774 G04
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3774 G05
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3774 G06
Oscillator Frequency
vs Input Voltage
1200
1000
75kΩ
800
47.5kΩ
600
400
200
23.2kΩ
Load Step (Continuous
Conduction Mode)
VIN = 12V
VOUT = 1.5V
50mV/DIV
AC-COUPLED
ILOAD
5A-DIV
15A TO 30A
50µs/DIV
3774 G08
0
0 5 10 15 20 25 30 35 40
INPUT VOLTAGE (V)
3774 G07
3774f
For more information www.linear.com/LTC3774
5
Share Link: 