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EV3205DJ-00A

EV3205DJ-00A首页预览图
型号: EV3205DJ-00A
PDF文件:
  • EV3205DJ-00A PDF文件
  • EV3205DJ-00A PDF在线浏览
功能描述: 1.3MHz Fixed Frequency 5 White LED Driver
PDF文件大小: 277.03 Kbytes
PDF页数: 共6页
制造商: MPS[Monolithic Power Systems]
制造商LOGO: MPS[Monolithic Power Systems] LOGO
制造商网址: http://www.monolithicpower.com
捡单宝EV3205DJ-00A
PDF页面索引
120%
MP3205
1.3MHz Fixed Frequency
5 White LED Driver
MP3205 Rev. 1.3 www.MonolithicPower.com 1
7/13/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
The Future of Analog IC Technology
TM
TM
DESCRIPTION
The MP3205 is a step-up converter designed
for driving up to 5 series white LEDs from a
single cell Lithium Ion battery. The MP3205
uses current mode, fixed frequency architecture
to regulate the LED current, which is measured
through an external current sense resistor. Its
low 104mV feedback voltage reduces power
loss and improves efficiency.
The MP3205 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload. The MP3205 is available in a small
5-pin TSOT23 package.
EVALUATION BOARD REFERENCE
Board Number Dimensions
EV3205DJ-00A 1.9”X x 1.8”Y x 0.4”Z
FEATURES
On Board Power MOSFET
Drives up to 5 Series White LEDs
Up to 87% Efficiency
Over 1MHz Fixed Switching Frequency
Low 104mV Feedback Voltage
Soft-Start/PWM Dimming
UVLO, Thermal Shutdown
Internal Current Limit
Available in a TSOT23-5 Package
APPLICATIONS
Cell Phones
Handheld Computers and PDAs
Digital Still Cameras
Small LCD Displays Application
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
MP3205
V
IN
5V
LED1
LED2
LED3
LED4
LED5
EN
MP3205-TAC-S01
CMDSH-3
FB
3
SWIN
15
EN
GND
4
2
88
87
86
85
84
83
82
81
80
79
78
77
EFFICIENCY (%)
5 101520
LED CURRENT (mA)
MP3205-EC01
Efficiency vs
LED Current
3 LEDs
4 LEDs
V
IN
=3.6V
5 LEDs
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