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LT3476 Datasheet(PDF) 4 Page - Linear Technology

Part # LT3476
Description  High Current Quad Output LED Driver
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3476 Datasheet(HTML) 4 Page - Linear Technology

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LT3476
4
3476fa
TEMPERATURE (°C)
–45
106
107
108
30
80
3476 G04
105
104
–20
5
55
105
103
102
DUTY CYCLE (%)
0
1.5
2
2.5
80
3476 G02
1
0.5
0
20
40
60
100
TYPICAL
MINIMUM
TEMPERATURE (°C)
0
1
2.5
3476 G05
0.5
2
1.5
–45
30
80
–20
5
55
105
RT (kΩ)
1
100
1000
10000
100
10
1000
3476 G03
V(CAP-LED) Threshold vs VADJ
V(CAP-LED) Threshold
vs Temperature, VADJ = VREF
Current Limit vs Duty Cycle
Switch Current Limit
vs Temperature
Oscillator Frequency vs RT
TYPICAL PERFOR A CE CHARACTERISTICS
–45
30
80
–20
5
55
105
TEMPERATURE (°C)
3476 G06
RT = 21k
1050
1100
1150
1000
950
900
850
Oscillator Frequency
vs Temperature
TEMPERATURE (°C)
1.040
1.050
1.065
3476 G07
1.045
1.060
1.055
–45
30
80
–20
5
55
105
Reference Voltage
VCAP (V)
102
106
3476 G08
105
104
103
108
107
010
20
515
25
35
30
VADJ = 1.05V
V(CAP-LED) Threshold vs V(CAP)
VIN (V)
0
10
15
16
3476 G09
5
0
4
8
12
25
20
PWM 1-4 = 3.6V
PWM 1-4 = 0V
VC = GND, NOT SWITCHING
TA = 25°C
Quiescent Current
VADJ (V)
0
0.3
0
60
150
0.6
0.9
3476 G01
30
120
90
1.2
1.5
TA = 25°C
TA = 25°C, unless otherwise noted.



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