HT7L2103中文資料合泰數(shù)據(jù)手冊PDF規(guī)格書

General Description

The HT7L2103 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 special multi-function interface, this device can be used for different LED power topologies such as Primary Feedback Isolation Flyback, Secondary Feedback Isolation Flyback, DC-DC Buck/Boost/ BuckBoost. 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), Internal Over-Temperature Protection (OTP), and a Soft-Start function to reduce inrush currents during LED power system initialization for the prevention of device burn-out.

The HT7L2103 provides a 1~99 PWM Dimming Range with duty-cycle scale precision lower than 1.

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 Precision Oscillator

? 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

? Internal Over-Temperature-Protection(OTP)

? 1~99 PWM Dimming Range

? 8-pin SOP package

Applications

? Isolation AC-DC LED Lighting

? AC-DC Switching Power Supply/Adapter