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LD7577B - High Voltage Green-Mode PWM Controller

Datasheet Summary

Description

The LD7577B integrates several functions of protections, and EMI-improved solution in SOP-8/ DIP-8 package.

It minimizes the component counts and the circuit space.

Features

  • more protections like OLP (Over Load Protection), OVP (Over Voltage Protection), and brownout protection to prevent the circuit from being damaged under abnormal conditions. Features z High-Voltage (500V) Startup Circuit z Current Mode Control z Non-Audible-Noise Green Mode Control z UVLO (Under Voltage Lockout) z LEB (Leading-Edge Blanking) on CS Pin z Internal Slope Compensation z OVP (Over Voltage Protection) on Vcc Pin z OLP (Over Load Protection) z Precision Brownout Protection z 500mA Dri.

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Datasheet preview – LD7577B

Datasheet Details

Part number LD7577B
Manufacturer Leadtrend
File Size 313.72 KB
Description High Voltage Green-Mode PWM Controller
Datasheet download datasheet LD7577B Datasheet
Additional preview pages of the LD7577B datasheet.

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Full PDF Text Transcription

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LD7577B 7/10/2009 High Voltage Green-Mode PWM Controller with Brown-Out Protection Rev. 00 General Description The LD7577B integrates several functions of protections, and EMI-improved solution in SOP-8/ DIP-8 package. It minimizes the component counts and the circuit space. The device provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation. Also, it features more protections like OLP (Over Load Protection), OVP (Over Voltage Protection), and brownout protection to prevent the circuit from being damaged under abnormal conditions.
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