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SC657 Datasheet(PDF) 7 Page - Semtech Corporation

No. de pieza SC657
Descripción Electrónicos  Backlight Driver for 5 LEDs with SemPulseTM Interface
PDF  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC657 Datasheet(HTML) 7 Page - Semtech Corporation

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7
Typical Characteristics (continued)
SC657
1ms�div
s�div
�div
Output Short Circuit Current Limit
V
OUT (V/div)
I
OUT (50mA/div)
Backlight Accuracy (5 LEDs) — 12mA Each
-8
-6
-4
-2
0
2
4
6
8
2.7
3
3.3
3.6
3.9
4.2
ACC Max %
ACC Min %
VIN (V)
Ripple — 2x Mode
20µs�div
s�div
�div
V
IN (00mV/div)
V
OUT (00mV/div)
I
BL (0mA/div)
C
IN = COUT = 4.7µF, VIN = 2.9V, 5 LEDs — 5mA each
Ripple — 1x Mode
20µs�div
s�div
�div
V
IN (00mV/div)
V
OUT (00mV/div)
I
BL (0mA/div)
C
IN = COUT = 4.7µF, 5 LEDs, — 5mA each
Ripple — 1.5x Mode
20µs�div
s�div
�div
V
IN (00mV/div)
V
OUT (00mV/div)
I
BL (0mA/div)
Output Open Circuit Protection
20µs�div
s�div
�div
V
BL (500mV/div)
V
OUT (V/div)
I
BL (0mA/div)
0
0
C
IN = COUT = 4.7µF, VIN = 2.9V, 5 LEDs, — 5mA each
0



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