Datasheet > BD81842MUV-M

BD81842MUV-M

更新时间： 2024-11-12 01:19:55

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
35页	1607K
描述
Automotive Panel Power Management IC

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BD81842MUV-M 数据手册

Datasheet

Power Supply IC Series for TFT-LCD Panels

Automotive Panel Power Management IC

BD81842MUV-M

●Applications

TFT-LCD Panels which are used in car navigation,

in-vehicle center panel, and instrument cluster.

●General Description

The BD81842MUV-M is a power management IC for

TFT-LCD panels which are used in car navigation,

in-vehicle center panel, and instrument cluster.

Incorporates high-power FET with low on resistance for

large currents that employ high-power packages, thus

driving large current loads while suppressing the

generation of heat. A charge pump controller is

incorporated as well, thus greatly reducing the number

of application components. Also Gate Shading Function

is included.

●Features

 AEC-Q100 Qualified^{(Note 1)}

 Boost DC/DC converter; 18 V / 2.5 A switch current.

 Switching frequency: 2.1 MHz

 Operational Amplifier (short current 200mA)

 Incorporates Positive / Negative Charge-pump

Controllers.

 Gate Shading Function

 Protection circuits:

●Key Specifications

Under Voltage Lockout

Protection Circuit



Input voltage range :

2.0V to 5.5V

6.0V to 18V

12V to 34V

200mA (Typ.)

2.1MHz (Typ.)

AVDD Output voltage range :

SRC Output voltage range :

VCOM Output current :

Oscillator Frequency :

Thermal Shutdown Circuit (Latch Mode)

Over Current Protection Circuit (AVDD)

Timer Latch Mode Short Circuit Protection (AVDD

SRC /VGL)

Over / Under Voltage Protection Circuit for Boost

DC/DC Output

Operating temperature range : -40℃ to +105℃

●Special Characteristics

No SCP time included (185ms from UVLO-off)



FB Regulation voltage :

Oscillator Frequency : ±10.5% (Ta=-40～105℃)

±3% (Ta=-40～105℃)

(Note1: Grade 2)

●Package

W(Typ.) x D(Typ.) x H(Max.)

4.0mm x 4.0mm x 1.0mm

●Typical Application Circuit (TOP VIEW)

VQFN24SV4040

TDK

SLF7055T-100M2R5(10μH,2.5A)

VIN

10V/0.5Amax

AVDD

RSX301LA-30

10uF

AVDD

10uF 10uF 10uF

18k

33nF

SRC GSOUT

22k

91k

13k

INP

PGND

5.5V

VCOM

INN

VCOM

COMP

RSTIN

24k

1uF

AGND1

AVDD

10k

2.2nF

AVDD

DRP

AGND2

VIN

DA227

VIN

0.1uF

3.3V

1uF

0.1uF

10k

DA227

CTL

RST

20V/20mA max

SRC

1uF

16k

0.22μF

VGL

0.1uF

120k

150k

10k

1uF

DA227

-7.1V/20mA max

1uF

Figure 1. Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays

www.rohm.com

TSZ02201-0313AAF00540-1-2

23. Jun. 2016 Rev.002

1/31

TSZ22111・14・001

12 3 4 5 6 7...35

中文翻译

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