EV0021 datasheet(1/4 Pages) MPS

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Giải thích chi tiết về linh kiện	MP1521 High Efficiency White LED Driver

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EV0021

MP1521 High Efficiency

White LED Driver

EVALUATION BOARD

EV0021 Rev 1.1_01/21/03

www.monolithicpower.com

1

Monolithic Power Systems

General Description

The EV0021 evaluation board uses the

MP1521 to drive up to three strings of 5 White

LEDs.

This MP1521 uses a peak current,

constant minimum off-time architecture and

has

three

individual

current-sensing

feedbacks. The OLS pin is designed for

detecting loose or open LED connections.

The feedback pins measure voltage across

sense resistors in series with the LED strings.

When supplying a bias current of 20mA, the

voltage drop across the sense resistor is only

0.4V to minimize power loss. Either a DC

voltage or a PWM signal at the BRT/PWM

input can control the LED brightness.

The

MP1521 has an on board power MOSFET

switch that is protected by current limit, open

load shutdown, thermal shutdown, and under

voltage lockout.

Ordering Information

Board Number

MPS IC Number

EV0021

MP1521EQ

Absolute Maximum Ratings

Supply Voltage (VIN)

28V

Switch Voltage to GND

-0.5V to 28V

VEN,VREF, VBRT, VFB1, VFB2, VFB3

–0.3V to 6V

Storage Temperature

-55

°C to +150°C

Recommended Operating Conditions

Supply Voltage (VIN)

2.7 V to 25V

Figure 1: EV0021 Evaluation Board

Số phần tương tự - EV0021

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
List of Unclassifed Man...	EV0021	171Kb / 2P	High Efficiency White LED Driver
Monolithic Power System...	EV0021	170Kb / 8P	High Efficiency White LED Driver

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nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
List of Unclassifed Man...	MP1521_R2.7W	171Kb / 2P	High Efficiency White LED Driver
New Japan Radio	NJU6050	108Kb / 8P	High Efficiency White LED Driver
New Japan Radio	NJU6048	163Kb / 13P	High Efficiency White LED Driver
ON Semiconductor	NCP5604A	359Kb / 15P	High Efficiency White LED Driver March, 2006 ??Rev. 0
Monolithic Power System...	MP1521	170Kb / 8P	High Efficiency White LED Driver
ON Semiconductor	NCP5680	985Kb / 27P	High Efficiency White LED Driver May, 2009 ??Rev. 0
Diodes Incorporated	AP3152FG-7	601Kb / 13P	120mA HIGH EFFICIENCY WHITE LED DRIVER Rev 3
Texas Instruments	LM3530	7Mb / 50P	High-Efficiency White-LED Driver
Texas Instruments	LM3699	1Mb / 25P	High-Efficiency White LED Driver
Diodes Incorporated	AP3154A	1Mb / 14P	120mA HIGH EFFICIENCY WHITE LED DRIVER Rev 1

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