ACT4514 datasheet(1/16 Pages) ACTIVE-SEMI

부품명	ACT4514

상세설명	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

PDF	16 Pages

Scroll/Zoom	100%

제조업체	ACTIVE-SEMI [Active-Semi, Inc]

홈페이지	http://www.active-semi.com

Logo

1 / 16 page

Innovative Power

TM

- 1 -

www.active-semi.com

FEATURES

• Up to 40V Input Voltage

• Up to 1.5A Constant Output Current

• Output Voltage up to 12V

• Patent Pending ActiveCC Constant Current

Control

− Integrated Current Control Improves

Efficiency, Lowers Cost, and Reduces

Component Count

• Resistor Programmable Outputs

− Current Limit from 400mA to 1500mA

− Patented cable compensation from DC Cable

Compensation from 0Ω to 0.5Ω

• 2% Feedback Voltage Accuracy

• Up to 93% Efficiency

• 210kHz Switching Frequency Eases EMI Design

• Advanced Feature Set

− Integrated Soft Start

− Thermal Shutdown

− Secondary Cycle-by-Cycle Current Limit

− Protection Against Shorted ISET Pin

• SOP-8 Package

APPLICATIONS

• Car Charger

• Rechargeable Portable Devices

• General-Purpose CC/CV Power Supply

GENERAL DESCRIPTION

ACT4514 is a wide input voltage, high efficiency

ActiveCC step-down DC/DC converter that operates

in either CV (Constant Output Voltage) mode or CC

(Constant

Output

Current)

mode.

ACT4514

provides up to 1.5A output current at 210kHz

switching frequency.

ActiveCC is a patent-pending control scheme to

achieve highest accuracy sensorless constant

current control. ActiveCC eliminates the expensive,

high accuracy current sense resistor, making it ideal

for

battery

charging

applications

and

high-

brightness LED drive for architectural lighting. The

ACT4514 achieves higher efficiency than traditional

constant current switching regulators by eliminating

the sense resistor and its associated power loss.

Protection features include cycle-by-cycle current

limit, thermal shutdown, and frequency foldback at

short circuit. The devices are available in a SOP-8

package and require very few external devices for

operation.

ACT4514

Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

Active-Semi

Rev 1, 21-Jul-11

CC/CV Curve vs. Load Current

6.0

5.0

4.0

3.0

2.0

1.0

0.0

IOUT Current (mA)

0

150

300

450

600

750

900

VIN = 12V

VIN = 24V

V0UT = 5V

유사한 부품 번호 - ACT4514

제조업체	부품명	데이터시트	상세설명
Active-Semi, Inc	ACT4513	664Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 29-Jul-11
	ACT4513	673Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 7, 14-Nov-12
	ACT4513	678Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 7, 14-Nov-12
	ACT4513YH-T	664Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 29-Jul-11
	ACT4513YH-T	673Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 7, 14-Nov-12

More results

유사한 설명 - ACT4514

제조업체	부품명	데이터시트	상세설명
Active-Semi, Inc	ACT4513	664Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 29-Jul-11
	ACT4513	673Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 7, 14-Nov-12
	ACT4515	463Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 14-Nov-12
	ACT4513	678Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 7, 14-Nov-12
	ACT4515	462Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 14-Nov-12
	ACT4533	602Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 1, 25-Feb-13
	ACT4533A	452Kb / 18P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
	ACT4523A	400Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 25-Jul-13
	EA4533AYH	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
	EA4533BYH	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13

More results

ACT4514 데이터시트(PDF) 1 Page - Active-Semi, Inc

ACT4514 데이터시트(HTML) 1 Page - Active-Semi, Inc

유사한 부품 번호 - ACT4514

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