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LD7550-B

Leadtrend
Part Number LD7550-B
Manufacturer Leadtrend
Description Green-Mode PWM Controller
Published Sep 14, 2013
Detailed Description LD7550-B 12/22/2006 Green-Mode PWM Controller REV: 01a General Description The LD7550-B is a low cost, low startup cur...
Datasheet PDF File LD7550-B PDF File

LD7550-B
LD7550-B

Overview
LD7550-B 12/22/2006 Green-Mode PWM Controller REV: 01a General Description The LD7550-B is a low cost, low startup current, current mode PWM controller with green-mode power-saving operation.
The integrated functions such as the Features z z z z z z z z z z z High-Voltage CMOS Process with Excellent ESD protection Very Low Startup Current (<20µA) 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 OVP (Over Voltage Protection) on Vcc Pin 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.
Compared with LD7550, LD7550-B has different parameters or functions on the following c...


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