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A8434 Datasheet(PDF) 2 Page - Allegro MicroSystems

Part No. A8434
Description  6-Channel High Efficiency Charge Pump White LED Driver
Download  11 Pages
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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A8434 Datasheet(HTML) 2 Page - Allegro MicroSystems

 
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6-Channel High Efficiency Charge Pump
White LED Driver
A8434
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Functional Block Diagram
Absolute Maximum Ratings
Input or Output Voltage
VIN, VOUT, C1+, C1– , C2+, C2– to GND..................... –0.3 to 6 V
All other pins..................................................... –0.3 to V
IN + 0.3 V
VOUT Short Circuit to GND ....................................................Continuous
Operating Ambient Temperature, TA ..................................... –40°C to 85°C
Junction Temperature, TJ(max)..............................................................150°C
Storage Temperature, TS ................................................... –55°C to 150°C
ES Package RθJA = 68 °C/W
(vendor data, on 4-layer PCB; unverified)
Additional information is available on the Allegro website.
Package Thermal Characteristics
+
+
+
+
+
+
+
C1
Fractional Charge Pump
(1
×, 1.5×, and 2×)
VIN
RSET
LED1
LED2
LED3
LED4
LED5
LED6
VOUT
C1+
C1
C2+
C2
ISET
GND
1
μF
1
μF
C2
1
μF
1
μF
CIN
COUT
Minimum Select
Current Mirror
Control, Clock,
and Reference
ENM
ENS
Use the following complete part number when ordering:
Part Number
Packaging*
Package Type
A8434EESTR-T
7-in. reel, 1500 pieces/reel
ES, 3 × 3 mm MLP-16
*Contact Allegro for additional packing options.
The device package is lead (Pb) free, with 100% matte tin
leadframe plating.


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