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LT3754 데이터시트(PDF) 6 Page - Linear Technology

부품명 LT3754
상세설명  16-Channel 횞 50mA LED Driver
PDF  28 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LT3754 데이터시트(HTML) 6 Page - Linear Technology

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LT3754
6
3754f
TYPICAL PERFORMANCE CHARACTERISTICS
SHDN/UVLO Pin (Hysteresis)
Current vs Junction Temperature
VIN Shutdown Current
vs Junction Temperature
VIN Quiescent Current vs VIN
VIN Quiescent Current
vs Junction Temperature
Switching Frequency
vs Junction Temperature
VC High Clamp, Active
and Low Clamp Levels
vs Junction Temperature
LED Current Waveforms
3000:1 PWM Dimming (100Hz)
VREF vs Junction Temperature
SHDN/UVLO Threshold
vs Junction Temperature
TA = 25°C, unless otherwise noted.
5μs/DIV
I(LEDx)
20mA/DIV
PWM
10V/DIV
I(L)
1A/DIV
3754 G04
JUNCTION TEMPERATURE (°C)
–50
1.525
1.485
1.465
1.505
1.445
25
100
75
050
3754 G05
125
–25
JUNCTION TEMERATURE (°C)
–50
1.525
1.485
1.465
1.505
1.445
25
100
75
050
3754 G06
125
–25
JUNCTION TEMPERATURE (°C)
–50
2.80
2.60
2.50
2.40
2.30
2.70
2.20
25
100
75
050
3754 G07
125
–25
JUNCTION TEMPERATURE (°C)
–50
5
3
2
1
4
0
25
100
75
050
3754 G08
125
–25
VIN = 6V, SHDN/UVLO = 0V
VIN (V)
0
12
6
4
2
8
10
0
15
30
35
25
10
20
3754 G09
40
5
PWM = 1.5V, NO SWITCHING,
V(LED1-16) = 1.2V, CTRL = 0.1V
PWM = 0V, CTRL = 0.1V
RISET = 14.7k
JUNCTION TEMPERATURE (°C)
–50
15
5
10
0
25
100
75
050
3754 G10
125
–25
VIN = 6V, RISET = 14.7k, CTRL = 0.1V
PWM = 1.5V, NO SWITCHING,
V(LED1-16) = 1.2V, CTRL = 0.1V
PWM = 0V, CTRL = 0.1V
JUNCTION TEMPERATURE (°C)
–50
1100
950
1050
1000
900
25
100
75
050
3754 G11
125
–25
RT = 39.2k
JUNCTION TEMPERATURE (°C)
–50
2.5
2.0
1.5
1.0
0.5
0.0
25
100
75
050
3754 G12
125
–25
VC HIGH CLAMP
VC LOW CLAMP
VC ACTIVE (SWITCHING)



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