ACT366
Rev 1, 14-Nov-12
High Performance ActivePSRTM Primary Switching Regulator
The ACT366 ActivePSRTM is optimized for high
performance, cost-sensitive applications, and
FEATURES
• Patented Primary Side Regulation
utilizes Active-Semi’s proprietary primary-side
feedback architecture to provide accurate constant
voltage, constant current (CV/CC) regulation
without the need of an opto-coupler or reference
device. Integrated line and primary inductance
compensation circuitry provides accurate constant
current operation despite wide variations in line
voltage and primary inductance. Integrated output
cord resistance compensation further enhances
output accuracy. The ACT366 achieves excellent
regulation and transient response, yet requires less
than 150mW of standby power.
Technology
• No Opto-Coupler
• Suitable Operation Frequency up to 85kHZ
• Best-in-Class Constant Voltage Accuracy
• Proprietary Fast Startup with Big Capacitive
Load
• Built-in Soft-Start Circuit
• Integrated Line and Primary Inductance
Compensation
The ACT366 is optimized for compact size 6W to
14W adapter applications. It is available in SOP-
8/EP (Exposed Pad) package.
• Integrated Programmable Output Cord
Resistance Compensation
• Line Under-Voltage, Output Over-Voltage,
Output Short-Circuit and Over-Temperature
Protection
Figure 1:
Simplified Application Circuit
• Complies with all Global Energy Efficiency
and CEC Average Efficiency Standards
• Dedicate Adapter Application from 6W to
14W
APPLICATIONS
• RCC Adapter Replacements
• Linear Adapter Replacements
• Standby and Auxiliary Supplies
GENERAL DESCRIPTION
The ACT366 belongs to the high performance
patented ActivePSRTM Family of Universal-input
AC/DC off-line controllers for adapter applications.
It is designed for flyback topology working in
discontinuous conduction mode (DCM). The
ACT366 meets all of the global energy efficiency
regulations (CEC, European Blue Angel, and US
Energy Star standards) while using very few
external components.
Table 1:
Output Power Table
85-265VAC
PART
TYPICAL
NUMBER
Po MAX
APPLICATION
The ACT366 ensures safe operation with complete
protection against all fault conditions. Built-in
protection circuitry is provided for output short-
circuit, output over-voltage, line under-voltage, and
over temperature conditions.
ACT366YH-T
(SOP-8/EP)
12V/1A
14W
Innovative PowerTM
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Copyright © 2012 Active-Semi, Inc.