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MP3802DH

更新时间： 2024-11-27 01:18:35
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描述
240Vpp High Voltage EL Lamp Driver

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MP3802DH 数据手册

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MP3802  
240Vpp High Voltage  
EL Lamp Driver  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP3802 is a high output voltage, DC to AC  
•
•
•
•
•
•
•
•
2.5V to 5.5V DC Input Voltage  
converter  
designed  
for  
driving  
240VPP Regulated 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  
2
or  
3-cell  
alkaline/NiCad/NiMH battery applications. The  
device uses a single inductor and a minimum  
number of passive components. The MP3802  
converts a low-voltage DC input to a ±120V  
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 MP3802 is comprised of two stages: a boost  
stage and a H-bridge lamp driver stage. The  
boost stage converts the input voltage up to  
120V. The H-bridge stage alternately switches  
the 120V to each terminal of the EL lamp.  
Global Positioning Systems (GPS)  
The MP3802 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 VDD/GND.  
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of  
Monolithic Power Systems, Inc.  
The MP3802 is available in an 8-pin MSOP  
package.  
TYPICAL APPLICATION  
1
2
3
4
8
OFF ON  
EN  
V
V
A
DD  
EL LAMP  
7
R
R
V
SW_OSC  
B
MP3802  
6
5
C
EL_OSC  
S
C
OUT  
BAS21  
3.3nF  
150V  
GND  
L
X
V
IN  
MP3802 Rev. 0.91  
12/10/2013  
www.MonolithicPower.com  
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.  
© 2013 MPS. All Rights Reserved.  
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