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LD7550 Datasheet Green-Mode PWM Controller

Manufacturer: Unknown Manufacturer

Overview: LD7550 8/27/2004 Green-Mode PWM Controller General.

Datasheet Details

Part number LD7550
Manufacturer Unknown Manufacturer
File Size 203.81 KB
Description Green-Mode PWM Controller
Download LD7550 Download (PDF)

General Description

The LD7550 is a low cost, low startup current, current mode PWM controller with green-mode power-saving operation.

The integrated functions such as the leading-edge blanking of the current sensing, internal slope compensation and the small SOT-26 package provide the users a high efficiency, low external component counts, and low cost solution for AC/DC power applications.

The special green-mode control is not only to achieve the low power consumption but also to offer a non-audible-noise operation when the LD7550 is operating under light load or no load condition.

Key Features

  • High-Voltage CMOS Process with Excellent ESD protection Very Low Startup Current (Typical 5µA) Under Voltage Lockout (UVLO) Current Mode Control with Cycle-by-Cycle Peak Current Limiting Leading-Edge Blanking on CS Pin Programmable Switching frequency Internal Slope Compensation Proprietary Green-Mode Control for Power Saving Non-audible-noise Green Mode Control 300mA Driving Capability 1.

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