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LT1937 Datasheet(PDF) 4 Page - Linear Technology

Part # LT1937
Description  20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1937 Datasheet(HTML) 4 Page - Linear Technology

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LT3498
4
3498f
TEMPERATURE (
°C)
–50
–25
300
350
500
0
50
75
3498 G07
450
400
25
100
125
VIN (V)
0
25
26
27
28
29
2
46
8
3498 G08
10
12
T = –50
°C
T = 150
°C
T = 25
°C
VIN (V)
0
0
3
6
9
12
15
2
46
8
1635 G07
10
12
T = –50
°C
T = 125
°C
T = 25
°C
SWITCH CURRENT (mA)
0
0
50
150
200
250
500
350
100
200
250
100
400
450
300
50
150
300 350
400
3498 G02
T = –50
°C
T = 125
°C
T = 25
°C
SCHOTTKY FORWARD DROP (mV)
0
150
200
250
600
1000
100
50
0
200
400
800
300
350
400
3498 G03
T = –50
°C
T = 125
°C
T = 25
°C
VCTRL1 (mV)
0
0
40
80
120
160
200
240
500
1000
1500
2000
3498 G04
T = 25
°C
T = –50
°C
T = 125
°C
TEMPERATURE (
°C)
–50
–25
186
194
206
0
50
75
3498 G05
190
202
198
25
100
125
T = –50
°C
CAP1 VOLTAGE (V)
0
198
202
206
20
194
190
186
5
10
15
25
3498 G06
T = 125
°C
T = 25
°C
TYPICAL PERFORMANCE CHARACTERISTICS
Shutdown Current
(VCTRL1 = VCTRL2 = 0V)
LED Switch Saturation
Voltage (VCESAT1)
LED Schottky Forward
Voltage Drop
Sense Voltage (VCAP1 – VLED1)
vs VCTRL1
Sense Voltage (VCAP1 – VLED1)
vs Temperature
Sense Voltage (VCAP1 – VLED1)
vs VCAP1
LED Current Limit
vs Temperature
Open Circuit Output
Clamp Voltage
Input Current in Output
Open Circuit
TA = 25°C, unless otherwise specified.
VIN (V)
2
0
1
2
3
4
5
6
468
10
12
3498 G09
T = –50
°C
T = 150
°C
T = 25
°C



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