MD6751
MD6751 is Fully Digital-controlled Power Supply Control IC manufactured by Sanken.
Fully Digital-controlled Power Supply Control IC with Bridgeless PFC and LLC Current-resonant Circuits
Data Sheet
Description
The MD6751 is a fully digital-controlled power supply IC, which incorporates a bridgeless PFC control circuit and an LLC current-resonant circuit. The PFC circuit, driven by continuous conduction mode (CCM), is controlled with frequencies suitable for applied input voltages and loads. The LLC circuit incorporates a floating drive circuit that drives an external high-side power MOSFET, in addition to its functionally-rich protections such as capacitive mode detection. These digitally controlled strategies allow application-specific optimal settings. pared to conventional analog control circuits, the IC can achieve more cost-effective, high-efficient, yet low-noise power systems with fewer external ponents.
Features
- Fully Digital-controlled PFC and LLC Currentresonant Circuits
- Soft Start
- X-capacitor Discharge (No Discharge Resistor
Required)
- Bridgeless PFC Circuit
- Continuous Conduction Mode (CCM) PFC Control
- LLC Capacitive Mode Detection
- LLC Automatic Standby Mode
- Protections Include:
- AC Power Supply Input Undervoltage Lockout
- PFC Output Undervoltage Protection (PFC_UVP)
- PFC Output Overvoltage Protection (PFC_OVP)
- PFC Overcurrent Protection (PFC_OCP)
- LLC High-side Driver Undervoltage Lockout
(VB_UVLO)
- LLC Overcurrent Protection (LLC_OCP)
- LLC Overload Protection (LLC_OLP)
- VCC Pin Overvoltage Protection (VCC_OVP)
- Thermal Shutdown (TSD)
Typical Application
Package
SOP28
Not to scale
Applications
For devices requiring high power supplies such...
