DatasheetsPDF.com

HT7L2102

Holtek Semiconductor
Part Number HT7L2102
Manufacturer Holtek Semiconductor
Description High Efficiency Dimmable LED Lighting Driver
Published Jan 1, 2012
Detailed Description www.DataSheet.co.kr HT7L2102 Anti-EMI, High Efficiency Dimmable LED Lighting Driver with Green Mode and Integrated Prot...
Datasheet PDF File HT7L2102 PDF File

HT7L2102
HT7L2102

Overview
www.
DataSheet.
co.
kr HT7L2102 Anti-EMI, High Efficiency Dimmable LED Lighting Driver with Green Mode and Integrated Protections Feature • Frequency Jitter for EMI Restriction • Integrated Soft-Start Function • Very Low Operating Current and Start-up Current (<20mA) for satisfying Energy-Star 2.
0 "No-Load Mode" (Stand-by) Power standard • ±5% Trimmed Oscillator for Precise Frequency • Non-Audible-Noise Green Mode Control to maintain efficiency for both Light and Heavy Loads • LEB (Leading-Edge Blanking) on CS Pin • Internal Slope Compensation • Cycle-by-Cycle Current Limiting • Short-Circuit-Protection(SCP) for Short-Circuit and Over-Load Condition • Over-Voltage-Protection(OVP) on VCC Pin • Over-Temperature-Protection(OTP) on TS pin for External Thermistor Sensing • 1~99% PWM Dimming Range • 8-pin SOP package General Description The HT7L2102 is an advanced, highly integrated LED Lighting driver using an AC-DC isolation topology.
The device provides many protection functions and uses ultra low power circuit design, and is optimized to restrict EMI.
By integrating a Non-Audible Noise Green Mode Control Structure, users can implement a single circuit for different LED load levels for various series/parallel configurations but still maintain high efficiency for different load conditions.
This device also integrates various protection functions for LED Lighting requirements such as Cycle-by-Cycle Current Limiting, Short-Circuit Protection (SCP), Over-Voltage Protection (OVP), Over-Temperature Protection (OTP) for external thermistor sensing, and a Soft-Start function to reduce inrush currents during LED power system initialization for the prevention of device burn-out.
The HT7L2102 provides a 1~99% PWM Dimming Range with duty-cycle scale precision lower than 1%.
Applications • Isolation AC-DC LED Lighting • AC-DC Switching Power Supply/Adapter Application Circuits L Vac=85V~265V BD1 C2 R7 R3 C14 R4 8 T1 1 7 D1 Vout C4 N D4 U1 C15 Vref VCC C12 5...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)