What are the key protection features?

It includes Over Voltage Protection (OVP), Over Load Protection (OLP), Over Temperature Protection (OTP) via external NTC, and Under Voltage Lockout (UVLO).

What is the switching frequency?

The controller operates at a nominal switching frequency of 65kHz.

What should engineers review before using this part?

Engineers should ensure proper PCB layout, especially for the CS pin, and verify the NTC selection for the desired OTP threshold.

What is the pinout of LD7750RGR?

Use the LD7750RGR datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about LD7750RGR pinout to locate pins, power rails, and interface signals before layout.

LD7750RGR Datasheet, Specs, Alternatives & ECAD | Leadtrend

AI summary

The LD7750RGR is a high-efficiency green-mode PWM controller for AC/DC power supplies, featuring integrated high-voltage startup and comprehensive protection.

Best for

AC/DC Adapters
Battery Chargers
LCD Power Supplies

Avoid if

Applications requiring non-isolated topologies without transformer feedback

Check before use

NTC thermistor values for OTP
CS pin filtering requirements

Key specifications

Switching Freq: 65kHz
Output Drive: 500mA
Max Duty Cycle: 75%
Startup Current: 320µA

Compliance & Environment

RoHS: Compliant
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Power SupplyBattery Charger

Datasheet

625da83bd48cab478a1afa736a8aad53_2006301913_Leadtrend-Tech-LD7750RGR_C648777.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for LD7750RGR: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is a high-voltage green-mode PWM controller designed for power supplies, integrating a 500V startup circuit and various protection features.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the LD7750RGR?+×

What are the key protection features?+×

What is the switching frequency?+×

What should engineers review before using this part?+×

What is the pinout of LD7750RGR?+×