LD7830GS datasheet(1/18 Pages) LEADTREND

Part #	LD7830GS

Description	High Power Factor Flyback LED Controller with HV Start-up

PDF	18 Pages

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Manufacturer	LEADTREND [Leadtrend Technology]

Direct Link	https://www.leadtrend.com.tw/

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LD7830

8/17/2012

1

Leadtrend Technology Corporation

www.leadtrend.com.tw

LD7830-DS-01a

August 2012

High Power Factor Flyback LED Controller with HV Start-up

REV: 01a

General Description

The LD7830 is a HV start-up Flyback PFC controller,

specially designed for LED lighting appliances. It operates

in transition(TM) mode and integrates with complete

protections required for safety and therefore it

’s an

excellent solution to minimize the components counts.

Those make it ideal for cost- effective applications.

With HV start-up technology, high power factor and TM

control, the start-up time and resistor loss could be

minimized efficiently. The circuit can easily achieve

PF>0.90 to meet most of the international standard

requirements.

With completed protection built inside this IC,

such as

over voltage protection (OVP), over current protection

(OCP), over load protection (OLP), over temperature

protection (OTP), and short circuit protection (SCP), It

enable the circuit to meet most safety requirements either

in normal and abnormal test.

Features

 High voltage (600V) startup circuit

 High Power Factor Flyback PFC controller

 High-efficiency Transition mode operation

 Wide UVLO (16Von and 7.5 Voff)

 VCC OVP (Over Voltage Protection)

 OLP (Over Load Protection)

 OCP (Cycle by cycle current limiting) Vcs=0.5V

 Internal OTP (Over Temperature Protection)

 500/-800mA Driving Capability

 Internal OTP function

Applications

 LED Power Supply

 Flyback PFC Power Supply

Typical Application

AC

Input

LD7830

GATE

CS

GND

ZCD

VCC

COMP

LED+

LED-

LF1

C1

EMI

Filter

HV

IREF

OUT

VSEN

VCC

GND ISEN

0.1V

1.25V

LED+

LD8105

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Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	TEA1751LT_1301	277Kb / 31P	HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller Rev. 3-9 January 2013
	TEA1755T	949Kb / 35P	HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller Rev. 1-25 October 2012
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	TEA1753T	346Kb / 32P	HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller Rev. 3-24 August 2012
Leadtrend Technology	LD7831	569Kb / 17P	High Power Factor Primary Side Flyback LED Controller With HV Start-up
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	LD7832A	514Kb / 16P	High Power Factor LED Controller with HV Start-up
	LD7838	571Kb / 15P	High Power Factor Flyback LED Controller with HV Start-up
NXP Semiconductors	TEA1751T	273Kb / 31P	HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller Rev. 3-10 January 2013
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LD7830GS Datasheet(PDF) 1 Page - Leadtrend Technology

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