BD60910GU_11 datasheet, PDF - EEWORLD Datasheet

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BD60910GU_11: DescriptionWhite backlight LED Drivers for Small to Medium LCD Panels (Switching Regulator Type); File Size608KB，33 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/

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BD60910GU_11 Overview

White backlight LED Drivers for Small to Medium LCD Panels (Switching Regulator Type)

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LED Drivers for LCD Backlights

White backlight LED Drivers

for Small to Medium LCD Panels

(Switching Regulator Type)

BD60910GU

No.11040EBT30

●Description

BD60910GU is maximum 8LED(minimum 4LED) serial LED driver with ALC (Auto Luminous Control) function.

Best match for mobile application that needs long battery life.

●Features

1) Boost DC/DC for LED back lighting

Drives maximum 8 to minimum 4 serial LEDs.

Integrated high voltage switching transistor

Soft start function.

Over voltage protection (Detect voltage is controllable)

Over current protection (2nd side)

VOUT short to GND protection

VOUT open protection.

2) Constant current driver for LED back lighting

Current step can be set in 7bit(0.2mA 128steps), and 8bit(0.1mA 256steps) in sloping.

Rise and fall time of sloping are set independently.

Iout max = 25.6mA

PWM brightness control by external input.

3) Auto Luminous Control (ALC)

Periodic ambient detection reduces sensor consumption current.

LED brightness can be controlled by 16steps ambient brightness level.

LED current for each ambient level is freely customizable.

SBIAS for sensor bias is integrated. (3.0V or 2.6V)

Photo Diode, Photo Transistor, Photo IC(Linear/ Logarithm) can be connected.

Automatic gain control built-in, so BH1600FVC can be connected directly.

4) Thermal shutdown (Auto-return type)

5) I C BUS FS mode（max 400kHz）Write/Read

6) VCSP85H3(3.00mm x 3.00mm) Small Size CSP package

●Absolute

Maximum Ratings (Ta=25

℃)

Parameter

Maximum voltage 1

Maximum voltage 2

Maximum voltage 3

Power Dissipation

Operating Temperature Range

Storage Temperature Range

Symbol

VMAX1

VMAX2

VMAX3

Topr

Tstg

Ratings

1250

-40 ~ +85

-55 ~ +150

Unit

℃

Pins

except for VLED VOUT, SW

VLED

VOUT, SW

*1) Power dissipation deleting is 10mW/

℃,

when it’s used in over 25

℃.

It’s deleting is on the board that is ROHM’s standard.

Dissipation by LSI should not exceed tolerance level of Pd.

●Operating

conditions (VBAT≥VIO, Ta=-40~85

℃)

Parameter

VBAT input voltage

VIO pin voltage

Symbol

VBAT

VIO

Ratings

2.7~5.5

1.65~3.3

Unit

www.rohm.com

1/30

2011.07 - Rev.B

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