The SDH771XG is a high- precision LED constant current driver IC, it is applicable to non-isolated buck LED constant current power system with full AC input voltage range of 85VAC~265VAC.
SDH771XG has built-in high-voltage power supply circuit, which can realize the independent power supply of the IC without startup resistor and auxiliary winding. At the same time, the conventional external power supply capacitor is omitted, which greatly saves system cost while speeding up system startup.
The SDH771XG works in inductor current boundary conduction mode, it uses a unique high-precision current sense technology, combined with internal compensation to achieve high constant current accuracy and excellent line/load regulation.
The SDH771XG provides various protections, such as output short circuit protection, cycle-by-cycle over current protection, over temperature regulation, and open circuit protection for sensing resistor, which greatly improves the safety and reliability of the system.The open-circuit protection voltage can be set externally through the ROVP pin.
Built-in 500V high voltage power MOSFET
Integrated high-voltage power supply, no startup resistor or VCC capacitor
Accurate constant current (<±3%) for LED
Output open/short circuit protection
Open circuit protection threshold value external adjustable
Over temperature regulation
Cycle-by-cycle over current protection
No auxiliary winding
Product Name | Package form | Marking | Hazardous Substance Control | Packing Type | Remarks |
---|---|---|---|---|---|
SDH7713SG | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7713SGTR | SOP-7-225-1.27 | / | Halogen free | Tape&Reel | |
SDH7714SG | SOP-7-225-1.27 | / | Halogen free | Tube | |
SDH7714SGTR | SOP-7-225-1.27 | / | Halogen free | Tape&Reel |
title | Types of | Size (KB) | date | Download the latest English version |
---|---|---|---|---|
SDH771XG | 262 | 2023-03-02 | SDH771XG 简要版说明书 |