EV0062 반도체 회로 부품 판매점
1.3MHz Low Power LED Torch/Flash Driver
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 MPS |
www.DataSheet4U.com
Monolithic Power Systems
EV0062 (MP1541)
1.3MHz Low Power
LED Torch/Flash Driver
EVALUATION BOARD - INITIAL RELEASE
GENERAL DESCRIPTION
The EV0062 is an evaluation board designed to
drive up to four (4) white LEDs in series. The
board is based on MPS’ MP1541 SOT23
current mode step up converter. The MP1541 is
intended for small, low power applications. The
MP1541 switches at 1.3MHz and allows the use
of tiny, low cost capacitors and inductors 2mm
or less in height. Internal soft start results in
small inrush current and extends the battery
life. The MP1541 operates from an input voltage
as low as 2.5V and can generate 12V at up to
200mA from a 5V supply.
The MP1541 includes under-voltage lockout,
current limiting and thermal overload protection
preventing damage in the event of an output
overload. The MP1541 is available in a small
5-lead TSOT23 package.
ELECTRICAL SPECIFICATION
Parameter
Supply Voltage
LED Current (Torch)
LED Current (Flash)
Symbol
VIN
IOUT1
IOUT2
Value
2.5 – 6
20
100
Units
V
mA
mA
FEATURES
• On Board Power MOSFET
• Uses Tiny Capacitors and Inductors
• 1.3MHz Fixed Switching Frequency
• Internally Compensated
• Internal Soft Start
• Operates with Input Voltage as Low as 2.5V
and Output Voltage as High as 22V
• 12V at 200mA from 5V Input
• UVLO, Thermal Shutdown
• Internal Current Limit
• Available in a TSOT23-5 Package
APPLICATIONS
• Camera Phone Flash
• Handheld Computers and PDAs
• Digital Still and Video Cameras
• External Modems
• Small LCD Displays
• White LED Driver
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
EV0062 EVALUATION BOARD
(2.5”X x 2.5”Y x 0.8”Z)
Board Number
EV0062 Rev. B
MPS IC Number
MP1541
Waveform in Flash Mode
VFLASH
2V/Div.
0
VOUT
5V/Div.
0
VIN = 3.6V (3 LEDs)
EV0062_MP1541_TAC_EC01
06/04, Rev. 1.0
www.MonolithicPower.com
1
EV0062 (MP1541) 1.3MHz LOW POWER TORCH/FLASH LED DRIVER
EVALUATION BOARD - INITIAL RELEASE
EVALUATION BOARD SCHEMATIC
VIN
5V
GND
EN
D1
MBR0520L
51
4
IN
EN
SW
FB
3
MP1541
2 GND
LED1
LED2
LED3
LED4
VOUT
GND
Q1
FLASH
EV0062_MP1541_SCH01
EV0062 BILL OF MATERIALS
Qty Ref Description
1 C1 Ceramic Capacitor, 10uF,
10V, X5R
1 C2 Ceramic Capacitor, 1uF,
16V, X5R
1 D1 Schottky Diode, 0.5A, 20V
1 L1 Inductor, 10uH, 1.7A
1 Q1 N-Channel Mosfet, 60V, 3A
1 U1 1.3MHz Boost Converter
1 R1 Resistor, 100kΩ, 5%
1 R2 Resistor, 470kΩ, 5%
1 R3 Resistor, 61.9Ω, 1%
1 R4 Resistor, 15.4Ω, 1%
1 LED1 Flash LED (2)
1 LED2 Flash LED (2)
1 LED3 Flash LED (2)
1 LED4 Flash LED (2)
Note
1) Distributor: Digikey
2) Not included with board.
Package
1210
1206
SOD-123
SOT23-6
SOT23-5
0603
0603
0603
0603
Manufacturer P/N
Distributor P/N (1)
Panasonic: ECJ-4YB1A106K PCC2170CT-ND
Panasonic: ECJ-3YB1C105K PCC1882CT-ND
Fairchild: MBR0520L
Sumida: CDRH6D28-100NC
Zetex: ZXMN6A08E6TA
MPS: MP1541
Panasonic: ERJ-6ENF1003V
Panasonic: ERJ-6GEYJ474V
Panasonic: ERJ-6ENF61R9V
Panasonic: ERJ-6ENF15R4V
MBR0520LCT-ND
ZXMN6A08E6CT-ND
P100KCCT-ND
P470KACT-ND
P61.9CCT-ND
P15.4CCT-ND
06/04, Rev. 1.0
www.MonolithicPower.com
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PDF 파일 내의 페이지 : 총 4 페이지
제조업체: MPS
( mps )
EV0062 led
데이터시트 다운로드 :
[ EV0062.PDF ]
[ EV0062 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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