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LP3958TL Datasheet(PDF) 17 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LP3958TL
Description  Lighting Management Unit with High Voltage Boost Converter
PDF  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3958TL Datasheet(HTML) 17 Page - National Semiconductor (TI)

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Backlight Driver Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typical
Max
Units
I
MAX
Maximum Sink Current
25.5
30
mA
I
LEAKAGE
Leakage Current
V
SUB, MAIN =18V
0.03
1
µA
I
MAIN
I
SUB
MAIN Current tolerance
SUB Current tolerance
I
MAIN and ISUB set to 12.8mA (80H)
11.1
12.8
14.1
mA
Match
MAIN-SUB
Sink Current Matching Error
I
SINK=12.8mA, DISPL=1
0.2
%
Match
MAIN-SUB
Sink Current Matching Error
I
SINK=12.8mA, DISPL=0
5
%
V
SAT
95% Saturation Voltage
I
SINK=25mA
400
600
800
mV
Note: Matching is the maximum difference from the average.
WLED Dimming, SLOPE=0
WLED Dimming, SLOPE=1
20175539
20175540
WLED Output Current vs. Voltage
20175592
www.national.com
17



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