PAM2804 datasheet(1/11 Pages) PAM

부품명	PAM2804

상세설명	1A Step-Down Constant Current, High Efficiency LED Driver

PDF	11 Pages

Scroll/Zoom	100%

제조업체	PAM [Power Analog Micoelectronics]

홈페이지	http://www.poweranalog.com

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1 / 11 page

Features

Applications

General Description

n

Efficiency up to 93%

180 A(TYP.) Quiescent Current

Output Current: Up to 1A

Internal Synchronous Rectifier

1.5MHz Switching Frequency

Soft Start

Under-Voltage Lockout

Short LED Protection

Open LED Protection

Thermal Shutdown

5-pin Small SOT23-5 Packages

3AA or 4AA Batteries Powered Flashlight

1 Cell Li-Ion Battery Powered Flashlight

The PAM2804 is a step-down constant current

LED driver. When the input voltage down to lower

than LED forward voltage, then PAM2804 run into

LDO mode.

The PAM2804 supports a range of input voltages

from 2.5V to 6.0V, allowing the use of a single

Li+/Li-polymer cell, 3AA or 4AA cell, USB, and

other standard power sources.

The FB voltage is only 0.1V to achieve high

efficiency.

PAM2804 employ internal power switch and

synchronous rectifier to minimize external part

count and realize high efficiency.

During shutdown, the input is disconnected from

the output and the shutdown current is less than

1 A. Other key features include under-voltage

lockout to prevent deep battery discharge of the

Li+ battery.

.

μ

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Pb-Free Package

Typical Application

1

www.poweranalog.com

PAM2804

1A Step-Down Constant Current, High Efficiency LED Driver

10/2010 Rev1.0

,

Power Analog Microelectronics Inc

VIN

SW

GND

EN

L

4.7µH

Co

10µF

V

C

IN

10µF

Rs

FB

WLED

1~5W

ILED =0.1/Rs

3AA or 4AA Batteries

1 Cell Li-Ion Battery

유사한 부품 번호 - PAM2804

제조업체	부품명	데이터시트	상세설명
Diodes Incorporated	PAM2804	461Kb / 10P	1A STEP-DOWN CONSTANT CURRENT, HIGH EFFICIENCY LED DRIVER Rev 3

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List of Unclassifed Man...	XL8002	214Kb / 13P	80V 1A High Efficiency Buck PFM LED Constant Current Driver
Diodes Incorporated	PAM2804	461Kb / 10P	1A STEP-DOWN CONSTANT CURRENT, HIGH EFFICIENCY LED DRIVER Rev 3
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PAM2804 데이터시트(PDF) 1 Page - Power Analog Micoelectronics

PAM2804 데이터시트(HTML) 1 Page - Power Analog Micoelectronics

유사한 부품 번호 - PAM2804

유사한 설명 - PAM2804

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