ACT4533C datasheet(1/16 Pages) ACTIVE-SEMI

Nome de Peças	ACT4533C

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

PDF	16 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ACTIVE-SEMI [Active-Semi, Inc]

Página de início	http://www.active-semi.com

Logo

1 / 16 page

Innovative Power

TM

- 1 -

www.active-semi.com

FEATURES

• 40V Input Voltage Surge

• 36V Steady State Operation

• Up to 3.5A output current

• Output Voltage up to 18V

• 125kHz Switching Frequency Eases EMI Design

• 91% Efficiency (Vout=5V@2.4A at Vin=12V)

• Stable with Low-ESR Ceramic Capacitors to

Allow Low-Profile Designs

• Integrated Over Voltage Protection

• Excellent EMI Performance

• Patented ActiveCC Sensorless Constant Current

Control Improves Efficiency and Lowers Cost.

• Resistor Programmable

− Current Limit from 1.5A to 4.0A

− Patented Cable Compensation from 0 to

0.25Ω

• ±7.5% CC Accuracy

− Compensation of Input /Output Voltage Change

− Temperature Compensation

− Independent of inductance and Inductor DCR

• 2% Feedback Voltage Accuracy

• Advanced Feature Set

− Integrated Soft Start

− Thermal Shutdown

− Secondary Cycle-by-Cycle Current Limit

− Protection Against Shorted ISET Pin

• SOP-8EP Package

APPLICATIONS

• Car Charger/ Adaptor

• Rechargeable Portable Devices

• General-Purpose CV/CC Power Supply

GENERAL DESCRIPTION

ACT4533C 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. ACT4533C

provides up to 3.5A output current at 125kHz

switching frequency.

ActiveCC is a patented control scheme to achieve

high-accuracy sensorless constant current control.

ActiveCC eliminates the expensive, high accuracy

current sense resistor, making it ideal for CLA

applications.

ACT4533C integrates adaptive gate drive to

achieve

excellent

EMI

performance

passing

EN55022 Class B EMC standard without adding

additional EMI components while maintaining high

conversion efficiency.

Protection features include cycle-by-cycle current

limit, thermal shutdown, and frequency foldback at

short circuit. The devices are available in a SOP-

8EP package and require very few external devices

for operation.

ACT4533C

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

Rev 1, 14-Nov-14

Output Current (A)

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

CC/CV Curve

VIN = 18V

VIN = 24V

VIN = 12V

Nº de peça semelhante - ACT4533C

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Active-Semi, Inc	ACT4533	602Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 1, 25-Feb-13
Active-Semi, Inc	ACT4533A	452Kb / 18P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
Qorvo, Inc	ACT4533AB	3Mb / 19P	Wide Input Sensorless CC/CV Step-Down DC/DC Converter Rev. B, January 2025
Active-Semi, Inc	ACT4533AYH-T	452Kb / 18P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
Active-Semi, Inc	ACT4533AYH-T	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13

More results

Descrição semelhante - ACT4533C

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Active-Semi, Inc	ACT4513	664Kb / 15P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 6, 29-Jul-11
	ACT4514	472Kb / 16P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 1, 21-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
	EA4533BYH	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13

More results

ACT4533C Folha de dados(PDF) 1 Page - Active-Semi, Inc

ACT4533C Folha de dados(HTML) 1 Page - Active-Semi, Inc

Nº de peça semelhante - ACT4533C

Descrição semelhante - ACT4533C

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Folha de dados Download

Ligação URL