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LD7523A

Leadtrend
Part Number LD7523A
Manufacturer Leadtrend
Description Smart Green-Mode PWM Controller
Published Apr 27, 2016
Detailed Description LD7523A 12/3/2008 Smart Green-Mode PWM Controller with Multiple Protections REV: 01 General Description The LD7523A is ...
Datasheet PDF File LD7523A PDF File

LD7523A
LD7523A

Overview
LD7523A 12/3/2008 Smart Green-Mode PWM Controller with Multiple Protections REV: 01 General Description The LD7523A is a low startup current, current mode PWM controller with green-mode power-saving operation.
The SOP-8/DIP-8 package integrates functions such as the leading- edge blanking of the current sensing, internal slope compensation, line compensation, and several protection features including cycle-by-cycle current limit, OVP, OTP, OLP, and brownout protection.
It provides the users a high efficiency, low external component counts solution for AC/DC power applications.
Furthermore, to satisfy various protection requirements, both latch-mode protection and auto-recoverable protection can be easily achieved by configuring LD7523A on different operation modes.
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 LD7523A is operating under light load or no load condition.
Typical Application Features z High-Voltage CMOS Process with Excellent ESD protection z Very Low Startup Current (< 35μA) 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 Programmable Line Compensation z OVP (Over Voltage Protection) z OLP (Over Load Protection) z OTP (Over Temperature Protection) through a NTC z Brownout Protection z Flexibility on Latch/Auto-Recoverable Protection Mode z 500mA Driving Capability Applications z Switching AC/DC Adaptor and Battery Charger z Open Frame Switching Power Supply z LCD Monitor/TV Power Leadtrend Technology Corporation LD7523A-DS-01 December 2008 1 www.
leadtrend.
com.
tw Pin Configuration SOP-8 & DIP-8(TOP VIEW) LD7523A OVP VCC OUT GND 8 765 TOP MARK YYWWPP 1 234 YY : Year code (D: 2004, E: 2005….
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) WW : Week code ## : Production code BNO COMP (-)LATCH CS Ordering Information Part number Package LD7523A GS SOP-8 Green Package LD7523A GN DIP-...


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