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SC658 Fiches technique(PDF) 7 Page - Semtech Corporation

No de pièce SC658
Description  Backlight Driver for 4 LEDs with SemPulseTM Interface
PDF  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC658 Fiches technique(HTML) 7 Page - Semtech Corporation

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7
Typical Characteristics (continued)
SC658
Backlight Accuracy (4 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, 4 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, 4 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 Short Circuit Current Limit
1ms�div
s�div
�div
V
OUT (V/div)
I
OUT (50mA/div)
0
0
C
IN = COUT = 4.7µF, VIN = 2.9V, 4 LEDs, — 5mA each
Output Open Circuit Protection
20µs�div
s�div
�div
V
BL (500mV/div)
V
OUT (V/div)
I
BL (0mA/div)
0



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