|
|
|
부품번호 | EV0035 기능 |
|
|
기능 | 20mA Precision WLED Driver Evaluation Board | ||
제조업체 | MPS | ||
로고 | |||
전체 4 페이지수
www.DataSheet4U.com
TM
The Future of Analog IC Technology TM
DESCRIPTION
The EV0035 is the evaluation board for the
MP1523, which is designed for driving up to six
(6) series WLEDs from a single cell Lithium Ion
battery. The board is set up to obtain 20mA
LED current. The current can be adjusted by
varying the resistor R2.
The MP1523 uses current limited, variable
frequency architecture to regulate the LED
current while maintaining high efficiency. The
BIAS pin measures the output voltage and turns
off the converter if an over voltage condition is
present to prevent damage due to an open
circuit condition. The LED current is measured
with an external current sense resistor. The low
0.4V full-scale regulation threshold and 0.5Ω
power switch minimize power loss to improve
efficiency.
ELECTRICAL SPECIFICATIONS
Parameter
Input Voltage
# of WLEDs
LED Current
Symbol
VIN
ILED
Value
2.7 – 25
up to 6
20
Units
V
mA
EV0035
6 White LEDs, 20mA Precision
WLED Driver Evaluation Board
FEATURES
• 2.7V to 25V Input Voltage Range
• Drives up to 6 Series White LEDs
• Surface-Mount Components
• Fully Assembled and Tested
APPLICATIONS
• Cell Phones
• Handheld Computers and PDAs
• Digital Still and Video Cameras
• Small LCD Displays
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV0035 EVALUATION BOARD
Efficiency vs VIN
85
80
(L x W x H) 2.0” x 1.4” x 0.5”
(5.0cm x 3.5 x 1.2cm)
Board Number
EV0035
MPS IC Number
MP1523DT
75
70
2.5
3.0 3.5 4.0 4.5
VIN (V)
EV0035_AC01
EV0035 Rev. 1.2
3/30/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
1
TM
EV0035 – 6 WHITE LEDs, 20mA PRECISION WLED DRIVER EVALUATION BOARD
QUICK START GUIDE
1. Solder LED1 – LED6 onto the board.
2. Connect VCC to the power source’s positive output.
3. Connect GND to supply ground.
4. Remove the jumper J1 to allow the MP1523 to automatically start when power is applied. Place the
shorting clip across J1 to disable the MP1523. A logic signal may be applied to EN to
enable/disable the MP1523, provided the shorting clip is not installed across J1.
5. To dim the LEDs, remove the shorting clip from J1 and apply a PWM signal to the EN pin. Adjusting
the duty cycle of the PWM signal determines the brightness of the LEDs.
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV0035 Rev. 1.2
3/30/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
4
4페이지 | |||
구 성 | 총 4 페이지수 | ||
다운로드 | [ EV0035.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
EV0030 | 20W Stereo Class D Single Ended Audio Amplifier | MPS |
EV0033 | 800KHz Synchronous Rectified Step-Down Converter | MPS |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |