A Green-Mode PWM Controller is a type of integrated circuit (IC) used in power supply applications, primarily in switched-mode power supplies (SMPS) and voltage regulator circuits. The term “Green-Mode” indicates that these controllers are designed to optimize power efficiency, reduce standby power consumption, and meet various energy efficiency standards and regulations, making electronic devices more environmentally friendly.
Part Number: LD7577JA
Function: High Voltage Green-Mode PWM Controller
Package: SOP-7, SOP-8 or DIP-8 Type
Manufacturer: Leadtrend
Images:
Description
The LD7577JA integrated several functions of protections, and EMI-improved solution in a SOP-7, SOP-8/or DIP-8 package. It minimizes the component counts and the circuit space, and it’s perfect for the low cost of applications.
It provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation. Also, the device features more protections like OLP (Over Load Protection), OVP (Over Voltage Protection), and brownout protection to prevent the circuit being damaged from the abnormal conditions.
Features
1. High-Voltage (500V) Startup Circuit
2. Current Mode Control
3. Non-Audible-Noise Green Mode Control
4. UVLO (Under Voltage Lockout)
5. LEB (Leading-Edge Blanking) on CS Pin [ … ]
Pinouts:
Applications:
1. Switching AC/DC Adaptor and Battery Charger
2. Open Frame Switching Power Supply
3. LCD Monitor/TV Power
LD7577JA PDF Datasheet
