Product Summary

The MAX17105ETG is an 8-string WLED driver with integrated step-up regulator and SMBus/PWM dimming capability. It is designed for large liquid- crystal 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. Its applications include Notebook, Subnotebook, and Tablet Computer, Displays, Automotive Systems, Handy Terminals.

Parametrics

MAX17105ETG absolute maximum ratings: (1)fault, IN to SGND: -0.3 to 30V; (2)PGND to SGND: -0.3 to 0.3V; (3)LX switch maximum continuous current: 1.6A; (4)continuous power dissipation: 1667mW; (5)junction temperature: 150℃; (6)lead temperature: 300℃; (7)storage temperature range: -65 to 150℃.

Features

MAX17105ETG features: (1)6V to 28V Input Supply Voltage; (2)Up to Eight Parallel-String Multiple Series Connected LEDs; (3)500kHz-to-2MHz Adjustable Switching Frequency; (4)0.15I Internal HV Power MOSFET (45V max); (5)Low-String Feedback Voltage: 500mV at 20mA LED current; (6)Full-Scale LED Current Adjustable from 0mA to 30mA; (7)Q2% Current Regulation Accuracy Between Strings; (8)100:1 Dimming Ratio at 25kHz Direct PWM Frequency; (9)100Hz to 30kHz PWMI Input Range for DPWM Mode and 10kHz Q5% for SMBus Mode.

Diagrams

MAX17105ETG pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MAX17105ETG+T
MAX17105ETG+T
Maxim Integrated Products
LED Lighting Drivers 8-String WLED Driver w/Step-Up Reg
Data Sheet
0-2080: $1.85
2080-2500: $1.85
MAX17105ETG+
MAX17105ETG+
Maxim Integrated Products
LED Lighting Drivers 8-String WLED Driver w/Step-Up Reg
Data Sheet
0-2080: $1.81