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LT3952 Datasheet(PDF) 9 Page - Linear Technology

Part # LT3952
Description  60V LED Driver with 4A Switch Current
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3952 Datasheet(HTML) 9 Page - Linear Technology

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LT3952
9
3952fb
For more information www.linear.com/LT3952
TYPICAL PERFORMANCE CHARACTERISTICS
PWM Generator Duty Cycle
vs DIM Voltage
PWM Generator Currents
vs Temperature
PWM Generator Frequency
vs PWM Capacitor
PWM Generator Thresholds
vs Temperature
PWM Generator Operation
and Step
IVINP-IVINN Threshold
vs Temperature
IVINCOMP vs IVINN-IVINP
OVLO Thresholds vs Temperature
10ms/DIV
PWM
0.5V/DIV
DIM
0.5V/DIV
ILED
200mA/DIV
3952 G35
1.2V PWM
THRESHOLD
IVINP-IVINN (mV)
0
0.8
1.2
80
3952 G29
0.4
0
20
40
60
1.6
TEMPERATURE (°C)
–50
58
60
150
3954 G28
56
54
0
50
100
64
62
TEMPERATURE (°C)
–50
1.125
1.150
1.175
1.200
1.225
1.250
1.275
OVLO RISING
OVLO FALLING
0
50
100
150
3952 G30
DIM VOLTAGE (V)
0
40
60
2
3952 G31
20
0
0.5
1
1.5
120
100
80
PWM CAPACITOR (nF)
10000
1000
100
10
1
0
100
1000
10
3952 G32
TEMPERATURE (°C)
–50
5
10
15
150
3952 G33
0
–5
–15
0
50
100
–10
25
20
DIM PULLUP CURRENT
PWM PULLUP CURRENT
PWM PULLDOWN CURRENT
TEMPERATURE (°C)
–50
0.8
1.2
150
3952 G34
0.4
0
0
50
100
1.6
0.6
1
0.2
1.4
DIM = 0.5V
UPPER THRESHOLD
LOWER THRESHOLD



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