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LD7752

Leadtrend
Part Number LD7752
Manufacturer Leadtrend
Description Green-Mode PWM Controller
Published Mar 7, 2015
Detailed Description LD7752 01/16/2013 Green-Mode PWM Controller with HV Start-Up Circuit and Soft Start time Adjustment REV. 00 General Des...
Datasheet PDF File LD7752 PDF File

LD7752
LD7752

Overview
LD7752 01/16/2013 Green-Mode PWM Controller with HV Start-Up Circuit and Soft Start time Adjustment REV.
00 General Description The LD7752 brings high performance, highly integrated functions, protections and EMI-improve solution.
It’s an ideal solution for those cost-sensitive system, reducing component count and overall system cost.
The LD7752 features high voltage startup circuit, minimum loss and green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation.
They also consist of more protections of OLP (Over Load Protection) and OVP (Over Voltage Protection) to prevent the circuit from damage under abnormal conditions.
Furthermore, the proprietary frequency swapping function can reduce the noise and help the power circuit designers to enhance EMI performance with fewer components and less developing time.
Features  High-Voltage Startup Circuit  UVLO (Under Voltage Lockout)  LEB (Leading-Edge Blanking) on CS Pin  Internal Frequency swapping  Internal Slope Compensation  Internal OCP Compensation  OVP (Over Voltage Protection) on Vcc Pin  OLP (Over Load Protection)  +250mA/-500mA Driving Capability  Soft-Driving  Soft Start Time and Grouping Frequency Adjustment Applications  LCD Monitor/TV Power  Switching AC/DC Adaptor and Battery Charger  Open Frame Switching Power Supply Typical Application AC EMI input Filter HV VCC CT OUT LD7752 * CS GND COMP photocoupler Leadtrend Technology Corporation LD7752-DS-00 January 2013 1 www.
leadtrend.
com.
tw Pin Configuration SOP-7 (TOP VIEW) SOP-8 /DIP-8(TOP VIEW) LD7752 HV VCC OUT HV NC VCC OUT 7 65 TOP MARK YYWWPP 1 YY2WW3PP4 8 765 TOP MARK YYWWPP 1 YY2WW3PP4 YY: WW: PP: Year code Week code Production code CT COMP CS GND CT COMP CS GND Ordering Information Part number Switching Freq.
Package LD7752 GS 65kHz SOP-8 LD7752 GR 65kHz SOP-7 LD7752 GN 65kHz DIP-8 The LD7752 is ROHS compliant/ Green Packaged.
Top Mark LD7752 GS LD7752 GR...


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