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LTC3453 датащи(PDF) 4 Page - Linear Technology

номер детали LTC3453
подробное описание детали  True Color PWM Delivers Constant Color with 400:1 Dimming Range
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  LINER [Linear Technology]
домашняя страница  http://www.linear.com
Logo LINER - Linear Technology

LTC3453 датащи(HTML) 4 Page - Linear Technology

  LTC3453 Datasheet HTML 1Page - Linear Technology LTC3453 Datasheet HTML 2Page - Linear Technology LTC3453 Datasheet HTML 3Page - Linear Technology LTC3453 Datasheet HTML 4Page - Linear Technology LTC3453 Datasheet HTML 5Page - Linear Technology LTC3453 Datasheet HTML 6Page - Linear Technology LTC3453 Datasheet HTML 7Page - Linear Technology LTC3453 Datasheet HTML 8Page - Linear Technology LTC3453 Datasheet HTML 9Page - Linear Technology Next Button
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LT3474/LT3474-1
4
3474fd
TYPICAL PERFORMANCE CHARACTERISTICS
Current Limit vs Duty Cycle
Switch Current Limit vs
Temperature
Current Limit vs Output Voltage
Oscillator Frequency vs
Temperature
Oscillator Frequency vs RT
Oscillator Frequency Foldback
LED Current vs VADJ
LED Current vs Temperature
Switch Voltage Drop
VADJ (V)
0
600
800
1000
1
3474 GO3
400
200
0
0.25
0.5
0.75
1.25
TA = 25°C
TEMPERATURE (°C)
–50
800
1000
1200
25
75
3474 G04
600
400
–25
0
50
100
125
200
0
VADJ = VREF
VADJ = VREF/5
SWITCH CURRENT (mA)
0
700
600
500
400
300
200
100
0
3474 G05
500
1000
1500
TA = 25°C
DUTY CYCLE (%)
0
1.5
2
2.5
80
3474 G06
1
0.5
0
20
40
60
100
TYPICAL
MINIMUM (125°C)
MINIMUM (85°C)
TEMPERATURE (°C)
–50
–25
0
1
2.5
0
50
75
3474 G07
0.5
2
1.5
25
100
125
VOUT (V)
0
0
0.5
1
1.5
2
2.5
2
46
8
3474 G08
10
12
TA = 25°C
RT (kΩ)
10
100
1000
100
3474 G09
TA = 25°C
TEMPERATURE (°C)
–50
400
450
500
550
600
–25
0
25
50
3474 G10
75
100
125
RT = 80.6k
VOUT (V)
0
0
100
200
300
400
500
600
0.5
1
1.5
2
3474 G11
2.5
TA = 25°C
RT = 80.6k



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