Datasheet > MP3801

MP3801

更新时间： 2024-10-01 01:18:35

品牌	Logo	应用领域
芯源 - MPS		/
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7页	442K
描述
190Vpp High Voltage EL Lamp Driver

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MP3801 数据手册

MP3801

190Vpp High Voltage

EL Lamp Driver

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP3801 is a high output voltage, DC to AC

•

2.5V to 5.5V DC Input Voltage

converter

designed

for

driving

190V_PPRegulated AC Output Waveform

Single Cell Lithium-Ion Compatible

10nA Shutdown Current

Adjustable EL Lamp Frequency

Adjustable Converter Frequency

Available in MSOP-8

Electroluminescent (EL) lamps of up to 5 square

inches. The device operates from an input

voltage range of 2.5V to 5.5V, making it suitable

for

1-cell

Li-Ion

and

3-cell

alkaline/NiCad/NiMH battery applications. The

device uses a single inductor and a minimum

number of passive components. The MP3801

converts a low-voltage DC input to a ±95V

regulated output voltage that drives the EL lamp.

Split Supply Capability

APPLICATIONS

•

Portable Multimedia Players

LCD Backlighting

PDAs

Handheld Wireless Communication

Mobile Phones

Remote Controls

The MP3801 is comprised of two stages: a boost

stage and a H-bridge lamp driver stage. The

boost stage converts the input voltage up to 95V.

The H-bridge stage alternately switches the 95V

to each terminal of the EL lamp.

Global Positioning Systems (GPS)

The MP3801 has two separate internal

oscillators for the boost and H-bridge stages.

The frequency of each oscillator is set

independently via external resistors. This

flexibility allows the EL lamp circuit to be

optimized for maximum performance. Also, the

IC can be enabled /disabled by connecting these

two resistors to V_DD/GND.

“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of

Monolithic Power Systems, Inc.

The MP3801 is available in an 8-pin MSOP

package.

TYPICAL APPLICATION

OFF ON

EL LAMP

SW_OSC

MP3801

EL_OSC

OUT

BAS21

3.3nF

100V

GND

MP3801 Rev. 1.0

1/25/2010

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7

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