ACT410 datasheet(1/16 Pages) ACTIVE-SEMI

Part #	ACT410

Description	ActivePSRTM Quasi-Resonant PWM Controller

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	ACTIVE-SEMI [Active-Semi, Inc]

Direct Link	http://www.active-semi.com

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1 / 16 page

Innovative PowerTM

- 1 -

www.active-semi.com

Active-Semi Proprietary―For Authorized Recipients and Customers

ActivePSR

TM is a trademark of Active-Semi.

ActivePSR

TM Quasi-Resonant PWM Controller

FEATURES

• Patented Primary Side Regulation

Technology

• Quasi-Resonant Operation

• Adjustable up to 120kHz Switching

Frequency

• +/-5% Output Voltage Regulation

• Accurate OCP/OLP Protection

• Integrated Output Cord Compensation

• Integrated Line and Primary Inductance

Compensation

• Built-in Soft-Start Circuit

• Line Under-Voltage, Thermal, Output Over-

voltage, Output Short Protections

• Current Sense Resistor Short Protection

• Transformer Short Winding Protection

• Less than 100mW Standby Power

• Complies with Global Energy Efficiency and

CEC Average Efficiency Standards

• Tiny SOT23-6 Package

APPLICATIONS

• AC/DC Adaptors/Chargers for Smart Phones,

iPADs, ADSL, PDAs, E-books

• Adaptors for Portable Media Player, DSCs,

and Other

GENERAL DESCRIPTION

The ACT410 is a high performance peak current

mode PWM controller which applies ActivePSRTM

and ActiveQRTM technology. ACT410 achieves

accurate voltage regulation without the need of an

opto-coupler or reference device.

The ACT410 is designed to achieve less than

100mW Standby Power. By applying frequency fold

back and

ActiveQR

TM

technology,

ACT410

exceeds the latest ES2.0 efficiency standard.

ACT410 integrates comprehensive protection. In

case of over temperature, over voltage, short

winding, short current sense resistor, open loop

and overload conditions, it would enter auto restart

mode including cycle-by-cycle current limiting.

ACT410 is to achieve no overshoot and very short

rise time even with big capacitive load (4000µF)

with the built-in fast and soft start process, .

The Quasi-Resonant (QR) operation mode can

effectively improve efficiency, reduce the EMI noise

and further reduce the components in input filter.

ACT410 is idea for application up to 36 Watt.

Figure 1:

Simplified Application Circuit

ACT410

Rev 3, 27-Feb-14

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ACT410 Datasheet(PDF) 1 Page - Active-Semi, Inc

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