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PDF PAM2863 Data sheet ( Hoja de datos )
| Número de pieza | PAM2863 | |
| Descripción | 2A LED DRIVER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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A Product Line of
Diodes Incorporated
PAM2863
2A LED DRIVER with INTERNAL SWITCH
Description
The PAM2863 is a continuous mode inductive step-down converter,
designed for driving single or multiple series connected LEDs
efficiently from a voltage source higher than the LED voltage. The
device operates from an input supply between 4.5V and 40V and
provides an externally adjustable output current of up to 2A.
Depending upon supply voltage and external components, this can
provide up to 30 watts of output power.
The PAM2863 includes the output switch and a high-side output
current sensing circuit, which uses an external resistor to set the
nominal average output current.
Output current can be adjusted below the set value, by applying an
external control signal to the VSET pin.
The VSET pin will accept either a DC voltage or a PWM waveform.
The soft-start time can be increased using an external capacitor from
the VSET pin to ground. Applying a voltage of 0.2V or lower to the
VSET pin turns the output off and switches the device into a low
current standby state.
Features
• Simple Low Parts Count
• Internal 40V NDMOS Switch
• 2A Output Current
• Single Pin On/Off and Brightness Control Using DC Voltage or
PWM
• Soft-Start
• High Efficiency (up to 97%)
• Wide Input Voltage Range: 4.5V to 40V
• Output Shutdown
• Open LED Protection
• Short LED Protection
• Up to 1MHz Switching Frequency
• Typical 5% Output Current Accuracy
• Pb-Free SOP-8(EP) Packages
Pin Assignments
Applications
• High End LED Flashlight
• LED Light Bar
PAM2863
Document number: DSxxxxx Rev. 1 - 0
1 of 11
www.diodes.com
October 2012
© Diodes Incorporated
1 page  
A Product Line of
Diodes Incorporated
PAM2863
Typical Performance Characteristics (@TA = +25°C, VIN = 16V, unless otherwise specified.)
PAM2863
Document number: DSxxxxx Rev. 1 - 0
5 of 11
www.diodes.com
October 2012
© Diodes Incorporated
5 Page 
A Product Line of
Diodes Incorporated
PAM2863
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2012, Diodes Incorporated
www.diodes.com
PAM2863
Document number: DSxxxxx Rev. 1 - 0
11 of 11
www.diodes.com
October 2012
© Diodes Incorporated
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PAM2863.PDF ] | |
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