Leadtrend Technology LD7922
The LD7922 integrates a 700V power MOSFET and a primary-side feedback PWM controller with CV/CC operation in a DIP-7 package. The LD7922 is designed for low power adapter/charger and LED lighting applications. It minimizes the components counts and is available in tiny packages.| Part No. | LD7922 |
|---|---|
| Datasheet | LD7922 Download |
| Manufacturer |  Leadtrend Technology |
| Description | Primary-Side PWM Power Switch |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Those make it an ideal design for low cost applications. The LD7922 provides constant voltage, constant current (CV/CC) operation requiring neither photo-coupler nor secondary control circuit. Also, the LD7922 features OTP (Over Temperature Protection) and OVP (Over Voltage Protection) to prevent the circuit from being damaged under abnormal conditions.FEATURES
● Built-in 700V Power MOSFET● Primary-side Feedback Control
● Constant Current Control
● Built-in Load Regulation Compensation
● Built-in Primary Winding Inductance Compensation
● Low Startup Current (<16A)
● Current Mode Control with Cycle-by-Cycle Current Limit
● Green Mode Control
● UVLO (Under Voltage Lockout)
● LEB (Leading-Edge Blanking) on CS Pin
● OVP (Over Voltage Protection) on Vcc
● OTP (Over Temperature Protection)
APPLICATIONS
● AC-DC Adapter and Charger● AC-DC LED Lighting Typical Application AC Input AC Input EMI Filter FB COMP VCC LD7922 Drain GND S Leadtrend Technology Corporation LD7922-DS-00 Aug.
