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MAX1985

Maxim Integrated
Part Number MAX1985
Manufacturer Maxim Integrated
Description Ultra-High-Efficiency White LED Drivers
Published Dec 8, 2017
Detailed Description 19-2761; Rev 0; 1/03 EVAALVUAAILTAIOBNLEKIT Ultra-High-Efficiency White LED Drivers MAX1984/MAX1985/MAX1986 General D...
Datasheet PDF File MAX1985 PDF File

MAX1985
MAX1985

Overview
19-2761; Rev 0; 1/03 EVAALVUAAILTAIOBNLEKIT Ultra-High-Efficiency White LED Drivers MAX1984/MAX1985/MAX1986 General Description The MAX1984/MAX1985/MAX1986 are white light-emitting diode (LED) drivers that use individual regulators to control the current of up to eight LEDs.
A high-efficiency step-up regulator generates just enough voltage to keep all the current regulators in regulation.
A versatile dimming interface accommodates analog, digitally adjusted pulse-width modulation (DPWM), or parallel control.
The individual current regulators allow good current matching between LEDs.
Open or shorted LEDs cannot affect the performance of other LEDs.
The step-up regulator achieves high efficiency by using synchronous rectification.
The internal N-channel switch and P-channel synchronous rectifier eliminate the need for external MOSFETs and diodes.
The 1MHz switching frequency allows the use of low-profile inductors and ceramic capacitors.
The brightness can be easily adjusted using a m...


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