Datasheet > BD8113EFV-E2

BD8113EFV-E2

更新时间： 2022-10-15 21:09:54

品牌	Logo	应用领域
罗姆 - ROHM		驱动器稳压器开关
页数	文件大小	规格书
20页	383K
描述
White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)

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BD8113EFV-E2 数据手册

LED Drivers for LCD Backlights

White Backlight LED Driver

for Medium to Large LCD Panels

(Switching Regulator Type)

BD8113EFV

No.11040EAT04

●Description

BD8113EFV is a white LED driver with the capability of withstanding high input voltage (36V MAX). This driver has 2ch

constant-current drivers integrated in 1-chip, which each channel can draw up to 150mA max, so that high brightness LED

driving can be realized. Furthermore, a current-mode buck-boost DC/DC controller is also integrated to achieve stable

operation against voltage input and also to remove the constraint of the number of LEDs in series connection.

The brightness can be controlled by either PWM or VDAC techniques.

●Features

1) Input voltage range 5.0 – 30 V

2) Integrated buck-boost current-mode DC/DC controller

3) Two integrated LED current driver channels (150 mA max. each channel)

4) PWM Light Modulation(Minimum Pulse Width 25µs)

5) Oscillation frequency accuracy ±5%

6) Built-in protection functions (UVLO, OVP, TSD, OCP, SCP)

7) LED abnormal status detection function (OPEN/ SHORT)

8) HTSSOP-B24 package

●Applications

Backlight for display audio, small type panels, etc.

●Absolute maximum ratings (Ta=25℃)

Parameter

Symbol

VCC

Ratings

Unit

Power supply voltage

BOOT ,OUTH Voltage

SW,CS Voltage

VBOOT, VOUTH

VSW, VCS

VBOOT-SW

VLED1,2

BOOT-SW Voltage

LED output voltage

VREG, OVP, OUTL, FAIL1, FAIL2, LEDEN,

ISET, VDAC, PWM, SS, COMP, RT,

SYNC, EN voltage

VVREG, VOVP, VOUTL, VFAIL1, VFAIL2,

VLEDEN, VISET, VVDAC, VPWM, VSS,

VCOMP, VRT, VSYNC, VEN

-0.3～7 < VCC

※

Power Consumption

Topr

Tstg

1.10

℃

Operating temperature range

Storage temperature range

LED maximum output current

Junction temperature

-40～+105

-55～+150

℃

※

ILED

150

℃

Tjmax

150

*1 IC mounted on glass epoxy board measuring 70mm×70mm×1.6mm, power dissipated at a rate of 8.8mw/℃ at temperatures above 25℃.

*2 Dispersion figures for LED maximum output current and V_Fare correlated. Please refer to data on separate sheet.

*3 Amount of current per channel.

●Operating conditions (Ta=25℃)

Parameter

Power supply voltage

Symbol

VCC

Ratings

5.0～30

Unit

Oscillating frequency range

FOSC

250～600

fosc～600

40～60

kHz

※

External synchronization frequency range

External synchronization pulse duty range

FSYNC

FSDUTY

*4 Connect SYNC to GND or OPEN when not using external frequency synchronization.

*5 Do not switch between internal and external synchronization when an external synchronization signal is input to the device.

www.rohm.com

2011.07 - Rev.A

1/19

12 3 4 5 6 7...20

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