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Discrete Divice

LVMOS

Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET

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Planar HVMOS Multi-Epi DPMOS Trench DPMOS

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LVMOS

Planar LVMOS Normal Trench LVMOS Split Gate Trench LVMOS Automotive MOSFET

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Planar HVMOS Multi-Epi DPMOS Trench DPMOS

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Planar IGBT Trench IGBT SiC Hybrid IGBT RC IGBT

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SiC MOS

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PSR Flyback Controller IC

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Power Bank Fast Charger IC

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AC-DC Fast Charging Protocol IC

DC-DC Converter

DC-DC Converter IC

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LED Lighting Driver

Dimming LED Lighting Driver

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Automotive LED Driver

Automotive Low-Voltage Motor Driver

Smart Power Switches

Gate Driver IC

Three-phase Half Bridge Driver

Single Half-bridge Driver

PFC IGBT Gate Driver

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Triaxial Acceleration Sensor

Six- Axis Inertial Sensor

Proximity Detection and Digital Ambient Light Sensor

Heart Rate Sensor

Silicon Microphone Sensor

MCU IC

8bit MCU

32bit MCU

Integrated Driver MCU

Digital Audio/Video

CD SERVO

Audio Decode

Audio Effects Processing

Intelligent Audio

ASIC

Bipolar PWM Controller

Bipolar DC-DC

LDO

Volume and Sound Control Circuit

DC Drive Circuit

Darlington Circuit

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Operational Amplifier Circuit

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Reference IC

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GaN

GaAs

SDH771XL

NON-ISOLATED BUCK LED CONSTANT CURRENT DRIVER IC

Description Main feature Product specification classification Internal block diagram Technical documentation Relevant package outline drawing

The SDH771XL is a high accuracy 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.

The SDH771XL integrates a built-in high-voltage power circuit, it is able to supply power to itself without any startup resistor or auxiliary winding, and at the same time, a conventional external power supply capacitor is omitted, which greatly shortens the startup time as well as saves the system cost. The SDH771XL works in inductor current boundary conduction mode, it uses a unique high-accuracy current sense technology, combined with internal compensation, can achieve high constant current accuracy and excellent line/load regulation.

The SDH771XL 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 system safety and reliability.

Main feature

Built-in 500V high voltage power MOSFET
Integrated high-voltage power supply, without the need of startup resistor and VCC capacitor
Accurate constant current threshold(<±3%)
Output short circuit protection
Over temperature regulation
Over temperature protection
Cycle-by-cycle over current protection
No auxiliary winding

Ordering Information

Product Name	Package form	Marking	Hazardous Substance Control	Packing Type
SDH7711CSL	SOP-7-225-1.27	/	Halogen free	Tube
SDH7711CSLTR	SOP-7-225-1.27	/	Halogen free	Tape&Reel
SDH7711BSL	SOP-7-225-1.27	/	Halogen free	Tube
SDH7711BSLTR	SOP-7-225-1.27	/	Halogen free	Tape&Reel
SDH7711ASL	SOP-7-225-1.27	/	Halogen free	Tube
SDH7711ASLTR	SOP-7-225-1.27	/	Halogen free	Tape&Reel
SDH7711SL	SOP-7-225-1.27	/	Halogen free	Tube
SDH7711SLTR	SOP-7-225-1.27	/	Halogen free	Tape&Reel
SDH7712SL	SOP-7-225-1.27	/	Halogen free	Tube
SDH7712SLTR	SOP-7-225-1.27	/	Halogen free	Tape&Reel
SDH7712DL	DIP-8A-300-2.54	/	Halogen free	Tube

Block Diagram

SDH771XL 英文.png

Documents

title	Types of	Size (KB)	date	Download the latest English version
SDH771XL		0	2022-01-26	SDH771XL Datasheet

Packages

DIP-8A-300-2.54

SOP-7-225-1.27

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