Datasheet > BD83854MUV

BD83854MUV

更新时间： 2024-11-05 11:14:35

品牌	Logo	应用领域
罗姆 - ROHM		开关便携式便携式设备泵显示器稳压器
页数	文件大小	规格书
23页	1311K
描述
BD83854MUV是小型TFT-LCD显示器用的升压开关稳压器/电荷泵变频器。该IC的输入电压范围大，为2.5V~4.5V，并采用小型封装，适用于便携式设备。

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中文翻译

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数据手册

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BD83854MUV 数据手册

Datasheet

Single-chip Type with Built-in FET Switching Regulator Series

Step-up and inverted Output

Power Supply for TFT-LCD Displays

BD83854MUV

General Description

Key Specifications

BD83854MUV is a step-up switching regulator and

charge pump inverter for small TFT-LCD Displays. It has

a wide input voltage range of 2.5V to 4.5V that is

suitable for portable applications. In addition, its small

package design is ideal for miniaturizing the power

supply.

2.5V to 4.5V

5.4V(typ)

■

Input Voltage Range

Output Boost Voltage

Output Inverted Voltage

Maximum Current

Operating Frequency

Efficiency

-5.4V(typ)

50mA(max)

1.0MHz(typ)

>85 %(typ)

±2 %(typ)

Features

Output Voltage Accuracy

Standby Current



Wide input voltage range of 2.5V to 4.5V

High frequency operation

1µA(max)

Output Discharge Independent ON/OFF

signal(STBYP, STBYN)

Package

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



Circuit protection



Over Current Protection (OCP)

Short Current Protection (SCP)

Under Voltage Lock Out (UVLO)

Thermal Shutdown (TSD)

Applications



TFT LCD Smart phones

TFT LCD Tablets

UCSP50L1C

VQFN20PV3535

1.80mm x 1.50mm x 0.57mm

3.50mm x 3.50mm x 1.00mm

Typical Application Circuit

LLX

4.7µH

VIN

VREG_OUT

VREG_IN

VREG_CP

4.7µF

CVREG

4.7µF

2.5V to 4.5V

PGND1

PGND2

AGND

V+

VOUTP

5.4V/max50mA

CVOP

4.7µF

CP1

CP2

STBYP

STBYN

CCP

2.2µF

V-

VOUTN

-5.4V/max50mA

CVON

4.7µF

Figure 1. Application Circuit

〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

.www.rohm.com

TSZ02201-0242AAJ00040-1-2

29.Aug.2014 Rev. 001

1/20

TSZ22111 • 15 • 001

12 3 4 5 6 7...23

中文翻译

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