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HT7A3942 Datasheet (PDF) - Holtek Semiconductor Inc

HT7A3942 Datasheet PDF - Holtek Semiconductor Inc
Part # HT7A3942
Download  HT7A3942 Download

File Size   1464.32 Kbytes
Page   11 Pages
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc
Description High Performance Current Mode PWM Controller

HT7A3942 Datasheet (PDF)

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HT7A3942 Datasheet PDF - Holtek Semiconductor Inc

Part # HT7A3942
Download  HT7A3942 Click to download

File Size   1464.32 Kbytes
Page   11 Pages
Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc
Description High Performance Current Mode PWM Controller

HT7A3942 Datasheet (HTML) - Holtek Semiconductor Inc

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HT7A3942 Product details

Description
The HT7A3942 is a high performance, low cost Current Mode PWM controller for providing necessary feature to implement Off-Line application. By Optimizing for the Energy Star 2.0 spec., the Power Supply Unit (PSU) implemented using the HT7A3942 can satisfy the “Energy Star No-Load Mode” Stand-by Power standard, which is less than 0.3W within all Nameplate Output Power Range of 0~250W. Internally implemented circuits include a trimmed Oscillator for precise frequency control, a temperature-compensated Voltage Reference, Slope Compensation, Leading-Edge Blanking, and a patented Non-Audible Noise Green Mode Control Scheme.
The HT7A3942 features a range of various protection functions such Short-Circuit Protection (SCP, which can also be used for Over-Load Protection, OLP), Cycle-by-Cycle Current Limiting and Under Voltage Lock-Out (UVLO).

Feature
• High performance, low cost current mode PWM controller especially designed for energy star 2.0
• High-Voltage CMOS process with excellent ESD protection (>3KV)
• Very low startup current (<20μA) and operating current
• ±5% trimmed oscillator for precise frequency control
• Non-audible-noise Green Mode control
• LEB (Leading-Edge Blanking) on CS pin
• Internal slope compensation
• Programmable switching frequency
• Internally trimmed reference with UVLO (Under Voltage Lockout)
• Cycle-by-Cycle Current Limiting
• Build-in Short-Circuit-Protection(SCP) for Short-Circuit and Over-Load condition
• 8-Pin SOP package

Applications
• Switching AC-DC adaptor
• Open frames switching power supply
• LCD TV




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About Holtek Semiconductor Inc


Holtek Semiconductor Inc. is a Taiwanese semiconductor company that specializes in the design and manufacture of microcontrollers, mixed-signal integrated circuits, and other semiconductor products. The company was founded in 1998 and is headquartered in Taipei, Taiwan.

Holtek Semiconductor's products are used in a wide range of applications, including consumer electronics, home appliances, security systems, and industrial automation. The company's product portfolio includes a variety of microcontrollers, such as 8-bit, 16-bit, and 32-bit microcontrollers, as well as mixed-signal integrated circuits, such as power management ICs, motor control ICs, and LED driver ICs.

Holtek Semiconductor is committed to quality and reliability, and it has obtained various certifications, including ISO 9001 and ISO 14001. The company's manufacturing facilities use advanced production equipment and quality control processes to ensure the highest levels of product performance and reliability.

Today, Holtek Semiconductor is recognized as a leading semiconductor company in Taiwan, with a strong reputation for providing high-quality and cost-effective solutions to its customers. The company continues to invest in research and development to stay at the forefront of new technologies and applications in the semiconductor industry.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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