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ALT80800KLPATR Datasheet(PDF) 20 Page - Allegro MicroSystems

No. de pieza ALT80800KLPATR
Descripción Electrónicos  Automotive-Grade, Constant-Current 2.0 A PWM Dimmable Synchronous Buck LED Driver
PDF  23 Pages
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Fabricante Electrónico  ALLEGRO [Allegro MicroSystems]
Página de inicio  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

ALT80800KLPATR Datasheet(HTML) 20 Page - Allegro MicroSystems

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Automotive-Grade, Constant-Current 2.0 A
PWM Dimmable Synchronous Buck LED Driver
ALT80800
20
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
APPLICATION CIRCUIT DIAGRAMS
Figure 17: Application Circuit Example for ALT80800
(LED current = 1 A, 500 kHz)
LED+
VIN
PWM
CBOOT
RON
L1
2.2 µF
RSENSE
ADIM
CLED
External PWM
dimming signal
BOOT
FFn
CSH
CSL
TON
PWM
ADIM
VCC
ALT80800
GND
SW
VIN
VCCIN
EN
VIN
FDSET
VIN
FFn
0.2 Ω
178 kΩ
33 µH
0.47 µF
0.1 µF
187 kΩ
187 kΩ
100 kΩ
10 kΩ
0.1 µF
+
33 µF
4.7 µF
SGND
PGND
VCC
VCC



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