MAX1984 Ultra-High-Efficiency White LED Drivers

Maxim

Description

19-2761; Rev 0; 1/03 KIT ATION EVALU E L B A AVAIL Ultra-High-Efficiency White LED Drivers General .
Features o Synchronous Step-Up Regulator Achieves >95% Efficiency Internal Switch and Synchronous Rectifier Eliminates External MOSFETs and Diodes 1MH.

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Datasheet Specifications

Part number: MAX1984
Manufacturer: Maxim
File Size: 333.93 KB
Datasheet: MAX1984_MaximIntegratedProducts.pdf
Description: Ultra-High-Efficiency White LED Drivers

Features

* o Synchronous Step-Up Regulator Achieves >95% Efficiency Internal Switch and Synchronous Rectifier Eliminates External MOSFETs and Diodes 1MHz Fixed Frequency Minimizes Component Sizes o o o o Up to 90% Total LED Efficiency Accurate LED Current Matching (8% max) Adjustable Maximum LED Current Multim

Applications

* PDAs and Hand-Held PCs Cellular Phones Digital Cameras Pin Configurations MODE MODE BITC BITC SEL SEL SEL BITC 13 12 BITA 11 BITB 10 REF 9 SETI 5 LD2 6 LDG 7 LD3 8 LD4 BITA BITA TOP VIEW MODE 15 IN IN 20 OUT 1 LX 2 GND 3 LD1 4 LD2 5 6 LD3 19 18 17 16 15 BITB 14 REF OUT 1 LX 2 GND 3 N. C. 4

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MAX1984 Ultra-High-Efficiency White LED Drivers Maxim

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