LT3475IFE-PBF 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
제조사
LT3475IFE-PBF Datasheet PDF : 20 Pages
| |||
LT3475/LT3475-1
TYPICAL PERFOR A CE CHARACTERISTICS
LED Current vs VADJ
1.50
TA = 25°C
1.25
1.00
0.75
0.50
0.25
0
0 0.25 0.5 0.75
VADJ (V)
1
1.25
3475 G01
Switch Current Limit
vs Duty Cycle
3.0
TYPICAL
2.5
2.0
MINIMUM
1.5
1.0
0.5
0
0
TA = 25°C
20
40
60
80
100
DUTY CYCLE (%)
3475 G04
Oscillator Frequency
vs Temperature
700
RT = 24.3kΩ
650
600
550
500
450
400
–50 –25
0 25 50 75
TEMPERATURE (˚C)
100 125
3475 G07
LED Current vs Temperature
1.2
VADJ = VREF • 2/3
1.0
0.8
0.6
0.4
VADJ = VREF • 7/30
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (˚C)
100 125
3475 G02
Switch Current Limit vs
Temperature
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3475 G05
Switch On Voltage
600
TA = 25°C
500
400
300
200
100
0
0
0.5
1.0
1.5
2.0
SWITCH CURRENT (A)
3475 G03
Current Limit vs Output Voltage
3.0
TA = 25°C
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VOUT (V)
3475 G06
Oscillator Frequency Foldback
700 TA = 25°C
600 RT = 24.3kΩ
500
400
300
200
100
0
0
0.5 1.0 1.5 2.0 2.5
VOUT (V)
3475 G08
Oscillator Frequency vs RT
TA = 25°C
1000
10
1
10
RT (kΩ)
100
3475 G09
3475fb
4
Share Link: 