HR1201

HR1201

NOT RECOMMENDED FOR NEW DESIGNS

High-Performance Digital PFC + Analog LLC Combo Controller with Standby Power Input to VCC

ALTERNATIVE PART

NRFND Datasheet

HR1201 continues to be in production for existing customers. Please consider this alternative for new designs:

HR1204

High-Performance Digital PFC + Analog LLC Combo Controller with Standby Power Input to VCC

Features & Benefits

General System Features

Meets EuP Lot 6 and CoC Version 5 Tier 2 Specifications
Standard I²C Interface
1k EEPROM to Store Parameters
User-Friendly GUI for Digital PFC
VCC Supplied by External DC Input from Additional Isolated Power Source

PFC Controller

High Efficiency from Light Load to Full Load by CCM/DCM Multi-Mode Control
High PF Due to Patented Input Capacitor Current Compensation
Programmable Filter for Noise Suppression
Programmable Frequency Jittering
Programmable Brown-In and Brown-Out
Programmable Soft Start
Cycle-by-Cycle Current Limit
Open-Loop Protection

LLC Controller

600V High-Side Gate Driver with Integrated Bootstrap Diode and High dV/dt Immunity
Adaptive Dead-Time Adjustment of HB LLC with Minimum and Maximum Limit
Burst Mode Switching
Safe Start-Up in Case of System Fault
Two-Level Over-Current Protection (OCP)
Latch Shutdown Protection
Over-Temperature Protection (OTP)
Capacitive Mode Protection

… and many more!

Description

The HR1201 is a high-performance controller that integrates an advanced digital PFC controller and a half-bridge LLC resonant controller. The HR1201 requires low input power at no-load or ultra-light load, making it compliant with the Energy Using Product Directive (EuP) Lot 6 and Code of Conduct Version 5 Tier 2 specifications.
The PFC of the HR1201 employs a patented average current control scheme, which can operate both in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) according to the instantaneous condition of the input voltage and output load. The IC exhibits excellent efficiency and a high power factor (PF) at light load. In CCM, the HR1201 can be used in applications up to 500W with minimal board size limitations. The performance of the PFC can be optimized by programming multiple parameters through an I2C GUI. Programming can be completed either by the factory or by the customer with a detailed user guide.
The half-bridge LLC resonant converter achieves high efficiency with zero-voltage switching (ZVS). The HR1201 implements an adaptive dead-time adjustment (ADTA) function to guarantee ZVS in different load conditions. Additionally, the HR1201 can prevent the LLC converter from operating in capacitive mode, making it more robust and easier to design.
Full protection features include thermal shutdown, open-loop protection (OLP), over-current protection (OCP), over-voltage protection (OVP), and brown-in/-out protection.
The HR1201 is suitable for standby power applications. The HR1201 is available in a SOIC-28 package.

Features & Benefits

General System Features
Meets EuP Lot 6 and COC Version 5 Tier 2 Specifications
Standard I2C Interface
1k EEPROM to Store Parameters
User-Friendly GUI for Digital PFC
VCC Supplied by External DC Input from Additional Isolated Power Source
PFC Controller
Variable Frequency Control for Flat Efficiency and PF Curve
High PF Due to Patented Input Capacitor Current Compensation
Programmable Frequency Jittering
Programmable Brown-In and Brown-Out
Programmable Soft Start (SS)
Cycle-by-Cycle Current Limit
Open-Loop Protection
LLC Controller
600V High-Side Gate Driver with Integrated Bootstrap Diode and High dv/dt Immunity
Adaptive Dead-Time Adjustment of HB LLC with Minimum and Maximum Limit
Burst Mode Switching
Safe Start-Up in Case of System Fault
Two-Level Over-Current Protection (OCP)
Latch Shutdown Protection
Over-Temperature Protection (OTP)
Capacitive Mode Protection