A8509 View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
A8509
Allegro MicroSystems
'A8509' PDF : 28 Pages View PDF
A8509
Wide Input Voltage Range, High Efficiency
4-Channel Fault Tolerant LED Driver
CDR
CDD
VIN
CIN
VC
R1
RFSET
RISET
CP1
L1
D1
VOUT
Q1
COUT
VIN GATE
FAULT
RSENSE
SENP SENN
PWM
EN
VDR
VDD
MODE
FSET/SYNC
ISET
COMP
A8509
(master)
PAD
ROVP
OVP
LED1
LED2
LED3
LED4
AGND PGND
CDR
CDD
RFSET
RISET
VIN
VOUT
RGATE
50 kΩ
ROVP
VIN
FAULT
GATE
SENP SENN
PWM
EN
VDR
VDD
MODE
FSET/SYNC
ISET
COMP
A8509
(one slave)
PAD
OVP
LED1
LED2
LED3
LED4
AGND PGND
CP2
Application C. Parallel operation of two A8509s; overvoltage protection on master must be
set higher than the OVP on the slave
Allegro MicroSystems, Inc.
26
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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