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MAX17105 - 8-String WLED Driver

Description

The MAX17105 is a high-efficiency driver for white-lightemitting diodes (WLEDs).

It is designed for large liquidcrystal displays (LCDs) that employ an array of LEDs as the light source.

Features

  • to protect the controller from fault conditions. Separate feedback loops limit the output voltage under any circumstance, ensuring safe operation. Once an open string is detected, the string is disabled while other strings operate normally. The MAX17105 also features short LED detection. The shorted strings are also disabled. The controller features cycle-by-cycle current limit to provide constant operation and soft-start capability. If the MAX17105 is in currentlimit condition, the step-up regu.

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Datasheet Details

Part number MAX17105
Manufacturer Maxim
File Size 577.15 KB
Description 8-String WLED Driver
Datasheet download datasheet MAX17105 Datasheet
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Full PDF Text Transcription

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19-4562; Rev 1; 12/09 TION KIT EVALUA BLE AVAILA 8-String WLED Driver with Integrated Step-Up Regulator and SMBus/PWM Dimming Capability General Description The MAX17105 is a high-efficiency driver for white-lightemitting diodes (WLEDs). It is designed for large liquidcrystal displays (LCDs) that employ an array of LEDs as the light source. An internal switch-current mode step-up controller drives the LED array, which can be configured for up to 8 strings in parallel and 10 LEDs per string. Each string is terminated with ballast that achieves Q2% current regulation accuracy, ensuring even LED brightness. The MAX17105 has a wide input voltage range from 6V to 28V, and provides adjustable 0 to 30mA fullscale LED current.
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