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STLD41 Datasheet(PDF) 13 Page - STMicroelectronics

Part # STLD41
Description  White LED driver for mid-size LCD display backlight
PDF  19 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLD41 Datasheet(HTML) 13 Page - STMicroelectronics

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STLD41
Typical performance characteristics
Doc ID 022283 Rev 5
13/19
8
Typical performance characteristics
Figure 7.
Eff. vs. VIN, 6 x 6 LEDs, VOUT = 24 V Figure 8.
Eff. vs. VIN, 5 x 7 LEDs, VOUT = 27 V
Figure 9.
Eff. vs. VIN, matrix 4 x 9 LEDs,
VOUT = 33 V
Figure 10.
Application eff. vs. VIN, matrix 4 x
10 LEDs
Figure 11.
Output current regulation at 4 x 10
LEDs
Figure 12.
VFB vs. PWM 25 kHz, VIN = 5.5 V,
IOUTset = 120 mA
50
55
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567
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10111213
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VIN [V]
IOUT=120m
IOUT=81mA
IOUT=66mA
IOUT=51mA
IOUT=35mA
IOUT=25mA
IOUT=15mA
50
55
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567
8
910
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VIN [V]
IOUT=120mA
IOUT=81mA
IOUT=66mA
IOUT=51mA
IOUT=35mA
IOUT=25mA
IOUT=15mA
50
55
60
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567
8
9
10111213
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VIN [V]
IOUT=120mA
IOUT=81mA
IOUT=66mA
IOUT=51mA
IOUT=35mA
IOUT=25mA
IOUT=15mA
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55
60
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90
95
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456
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910 11 12 13 14 15 16 17 18 19 20 21 22
VIN [V]
0
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1200
IOUT=120mA
IOUT=78mA
IOUT=25mA
IIN@120mA
IIN@78mA
IIN@25mA
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VIN [V]
120mA / Rsense=1R3
100mA / Rsense=1R6
50mA / Rsense=3R3
20mA / Rsense=8R2
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010
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40506070
8090
100
DC [%]



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