ACT4533B datasheet(1/18 Pages) ACTIVE-SEMI

tên linh kiện	ACT4533B

Giải thích chi tiết về linh kiện	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

PDF	18 Pages

Scroll/Zoom	100%

nhà sản xuất	ACTIVE-SEMI [Active-Semi, Inc]

Trang chủ	http://www.active-semi.com

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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 12V

• 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

ACT4533A/B 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. ACT4533A/B

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.

ACT4533A/B 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.

The only difference between ACT4533A and

ACT4533B is that Pin 7 provides OVP for

ACT4533A and EN/OVP for ACT4533B.

ACT4533A/B

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

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

Rev 0, 14-Aug-13

VIN = 18V

VIN = 24V

VIN = 12V

Số phần tương tự - ACT4533B

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Active-Semi, Inc	ACT4533BYH-T	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
Active-Semi, Inc	ACT4533BYH-T	452Kb / 17P	Wide-Input Sensorless CC/CV Step-Down DC/DC Converter Rev 0, 14-Aug-13
Qorvo, Inc	ACT4533BYH-T	3Mb / 19P	Wide Input Sensorless CC/CV Step-Down DC/DC Converter Rev. B, January 2025

More results

Mô tả tương tự - ACT4533B

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
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
	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

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