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A1569E Datasheet(PDF) 3 Page - Allegro MicroSystems

Part # A1569E
Description  LED Driver with Integrated Hall-Effect Switch
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A1569E Datasheet(HTML) 3 Page - Allegro MicroSystems

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LED Driver with Integrated Hall-Effect Switch
A1569E
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Pinout Drawing and Terminal List
1
2
3
4
5
6
7
8
PAD
VIN
SEN_EN
EXT
LA
GND
THTH
IREF
FADE
Package LJ, 8-Pin SOICN Pinout Drawing
Terminal List
Pin Number
Pin Name
Description
1
VIN
Supply
2
SEN_EN
Hall sensor enable
3
EXT
External override input
4
LA
LED anode (+) connection
5
FADE
Fade-in/fade-out dimming
6
IREF
Current reference
7
THTH
Thermal threshold
8
GND
Ground reference
PAD
Exposed thermal pad (may be left
floating or tied to ground)
Clock/Logic
Control Logic
Current
Regulator
Slew
Limit
Thermal
Shutdown
Temp
Monitor
Current Reference
LA
THTH
IREF
RIREF
FADE
CFADE
(optional)
EXT
SEN_EN
Wake Up
Regulator
VIN
GND
+
RPD
RPD
Functional Block Diagram


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