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LT3474 Datasheet(PDF) 8 Page - Analog Devices

Part # LT3474
Description  40VIN, 75VOUT LED Controllers
PDF  28 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3474 Datasheet(HTML) 8 Page - Analog Devices

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LT3755/LT3755-1/LT3755-2
8
Rev. E
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C, unless otherwise noted.
SENSE Current Limit Threshold
vs Duty Cycle
V(ISP-ISN) Threshold vs FB Voltage
Gate Rise/Fall Time
vs Capacitance
DUTY CYCLE (%)
95
105
115
100
110
37551 G16
0
25
50
75
100
FB VOLTAGE (V)
37551 G17
1.2
1.22
1.24
1.26
1.28
0
50
125
25
75
100
VCTRL = 2V
CAPACITANCE (nF)
37551 G18
0
2
4
6
10
8
0
40
100
20
60
80
GATE RISE
TIME
GATE
FALL TIME
10% TO 90%
INTVCC Dropout Voltage
vs Current, Temperature
ISP/ISN Input Bias Current
vs CTRL Voltage
CTRL (V)
37551 G19
0
0.5
1
1.5
2
0
10
40
20
30
ISP
ISN
LDO CURRENT (mA)
37551 G20
0
5
10
15
25
20
30
–2.5
–1.5
–2.0
0
–1.0
–0.5
TA = –45°C
VIN = 7V
TA = 125°C
TA = 150°C
TA = 25°C



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