LD5805GS datasheet(8/18 Pages) LEADTREND

Part #	LD5805GS

Description	Step up, 4 strings, Max. 250mA/string, Multi-dimming mode WLED Backlight Controller

PDF	18 Pages

Scroll/Zoom	100%

Manufacturer	LEADTREND [Leadtrend Technology]

Direct Link	https://www.leadtrend.com.tw/

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8 / 18 page

LD5805

06/15/2015

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD5805-DS-01 June 2015

Note:

The device is not guaranteed to function outside of its operating conditions.

Its ILED1~ILED2 recommend range is defined by PWM is 100% dimming duty.

If all the channels are in use, IC’s

thermal would be affected due to the voltage tolerance between the light bars and layout condition. It’s recommended

to choose a fit package to improve it. The maximum allowable power dissipation is a function of the maximum junction

temperature TJ (MAX), the junction-to-

ambient thermal resistance θJA, and the ambient temperature TA. The maximum

allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)-TA

)/θJA.

Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go

into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage.

LD5805GS Datasheet(PDF) 8 Page - Leadtrend Technology