pt4115 China Resources Powtech (Shanghai) Co., Ltd, pt4115 Datasheet

pt4115

Manufacturer Part Number

pt4115

Description

30v, 1.2a Step-down High Brightness Led Driver With 5000 1 Dimming

Manufacturer

China Resources Powtech (Shanghai) Co., Ltd

Datasheet

1.PT4115.pdf (2 pages)

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Download datasheet (48Kb)

30V, 1.2A Step-down High Brightness LED Driver with 5000:1

FEATURES

APPLICATION

PT4115-EN-BRIEF

www.crpowtech.com

Simple low parts count

Wide input voltage range: 8V to 30V

Up to 1.2A output current

Single pin on/off and brightness control

using DC voltage or PWM

Up to 1MHz switching frequency

Typical 5% output current accuracy

Inherent open-circuit LED protection

High efficiency (up to 97%)

High-Side Current Sense

Hysteretic Control: No Compensatio

Adjustable Constant LED Current

Low voltage halogen replacement LEDs

Automotive lighting

Low voltage industrial lighting

LED back-up lighting

Illuminated signs

SELV lighting

LCD TV backlighting

Dimming

GENERAL DESCRIPTION

The PT4115 is a continuous conduction mode

inductive step-down converter, designed for

driving single or multiple series connected LED

efficiently from a voltage source higher than the

total LED chain voltage. The device operates

from an input supply between 8V and 30V and

provides an externally adjustable output current

of up to 1.2A. Depending upon the supply

voltage

PT4115can provide more than 30 watts of output

power.

The PT4115 includes the power switch and a

high-side output current sensing circuit, which

uses an external resistor to set the nominal

average output current, and a dedicated DIM

input accepts either a DC voltage or a wide

range of pulsed dimming. Applying a voltage of

0.3V or lower to the DIM pin turns the output off

and switches the device into a low current

standby state. The PT4115 is available in

SOT89-5 packages.

and

external

components,

PT4115

the

Related parts for pt4115

pt4115 Summary of contents

Page 1

... PT4115can provide more than 30 watts of output power. The PT4115 includes the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts either a DC voltage or a wide range of pulsed dimming ...

Page 2

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