LD5516C数据手册Leadtrend中文资料规格书

描述 Description

The LD5516C is a primary-side Quasi-Resonant feedback controller capable to operate in CV/CC mode for small power AC/DC charger and adapter, a superior solution for Pump Express Plus™ based application. It minimizes the components counts and is available in a tiny SOT-26 package. Those make it an ideal design for low cost and high performance applications.
The LD5516C provides fixed constant current operation to boost more power. Both of them are programmable constant voltage, requiring neither photo-coupler nor secondary-side control circuit. Also, the LD5516C feature feedback loop open protection, internal OTP (Over Temperature Protection), wide-range and different output voltage level OVP (Over Voltage Protection)… etc., to prevent the circuit from being damaged under abnormal conditions.

特性 Features

·Speedy Charge™ technology
·Pump Express Plus™ protocol compatible
·Normally 5V output
·Programmable output voltage
·12V, 9V, 7V, and 5V to 3.6V in 0.2V step
·Meet CoC Tier-2 no load power saving for 75mW
·Adjustable constant current control
·Adjustable load regulation compensation
·Ultra low Startup current
·75kHz maximum switching frequency
·LEB (Leading-Edge Blanking) on CS Pin
·Up to 29V OVP (Over Voltage Protection) on VCC
·120mA/-200mA unbalanced MOS driving capability

应用 Application

·Pump Express Plus™ based Charger
·AC/DC Adaptor for Phone and Tablet