LD7523 Datasheet – Smart Green-Mode PWM Controller

Part Number : LD7523, LD7523GS, LD7523GN

Function : Smart Green-Mode PWM Controller with Multiple Protections

Package : SOP-8 Pin, DIP-8 Pin Type

Manufacturers : Leadtrend Technology ( http://www.leadtrend.com.tw/ )

Image

LD7523 PWM controller

Description

The LD7523 is a low startup current, current mode PWM controller with green-mode power-saving operation. The SOP-8/DIP-8 package integrated functions such as the leading- edge blanking of the current sensing, internal slope compensation, line compensation, and several protection features. The protection functions include cycle-by-cycle current limit, OVP, OLP, and brownout protection. It provides the users a high efficiency, low external component counts solution for AC/DC power applications.

 

Pinout

LD7523 datasheet pinout
Features

1. High-Voltage CMOS Process with Excellent ESD protection
2. Very Low Startup Current (< 35μA)
3. Current Mode Control
4. Non-audible-noise Green Mode Control
5. UVLO (Under Voltage Lockout)
6. LEB (Leading-Edge Blanking) on CS Pin
7. Internal Slope Compensation
8. Programmable Line Compensation
9. OVP (Over Voltage Protection)
10. OLP (Over Load Protection)
11. Brownout Protection
12. Built in OLP De-Latch Timer
13. 500mA Driving Capability

 

LD7523 Datasheet