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HR1211

更新时间： 2024-11-19 17:02:15
品牌 Logo 应用领域
芯源 - MPS 控制器功率因数校正
页数 文件大小 规格书
39页 2201K
描述
多模式 PFC 和电流模式 LLC 组合控制器，提供可编程的降低音频噪声控制功能

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HR1211 数据手册

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HR1211  
Multi-Mode PFC and Current Mode  
LLC Controller with Configurable Audible  
Noise Reduction Control  
o HV Current Source for Start-Up  
o Smart X-Capacitor Discharge during AC  
Dropout, Approved by IEC62368 and  
IEC60950  
o UART Interface for Configurations  
o User-Friendly GUI for Digital PFC  
DESCRIPTION  
The HR1211 is a multi-mode PFC and current  
mode LLC combo controller that is configurable  
via UART interface. Power-saving technology  
helps achieve optimized efficiency across the full  
operating range.  
PFC Controller:  
The PFC controller employs a patented, digital  
average current control scheme to achieve  
hybrid CCM/DCM operation. Under heavy loads,  
CCM reduces the peak MOSFET current so the  
controller can be used across a wider load range.  
Under light loads, DCM reduces the switching  
frequency for better efficiency. Burst mode has  
configurable, digital soft switching to improve  
both light-load efficiency and audible noise.  
o CCM/DCM Multi-Mode PFC Control with  
High Efficiency across All Loads  
o Operating Frequency Up to 250kHz  
o High PF due to Input Capacitor Current  
Compensation  
o Configurable Frequency Jittering  
o Configurable Soft Start and Burst On  
o Configurable AC Input Brown-In/Out  
o Cycle-by-Cycle Current Limiting  
o OLP, OVP  
Current mode control is implemented in the LLC  
stage to achieve good stability and fast  
response. Three operation modes are  
implemented based on the different load  
conditions: steady state, skip, and burst mode.  
This allows different load conditions to be  
independently optimized for efficiency. At light  
loads, digital, frequency-controlled burst mode is  
applied to reduce both switching power loss and  
audible noise. Adaptive dead-time adjustment  
(ADTA) and capacitive mode protection (CMP) is  
also applied to guarantee zero-voltage switching  
(ZVS) without capacitive mode operation.  
LLC Controller:  
o 600V High Side Gate Driver with  
Bootstrap Diode and High dV/dt  
Immunity  
o Current Mode Control  
o Up to 500kHz in Steady State  
o Adaptive Dead-Time Adjustment with  
Minimum and Maximum Limit  
o Burst/Skip Mode Switching at Light Load  
o Configurable Burst Frequency with Low  
Audible Noise  
o Configurable Soft Start  
o Configurable DC Input Brown In/Out  
o Capacitive Mode Protection  
o OCP, OPP with Auto-Restart or Latch  
o Configurable Protection on SO Pin  
The HR1211 has an internal, high-voltage  
current source for start-up, meaning that a  
traditional start-up resistor or external circuit is  
not required. The high-voltage (HV) current  
source can be implemented as an X-capacitor  
discharger when the AC input is in dropout, so a  
capacitor resistor is not required.  
APPLICATIONS  
Desktop PCs and ATX Power Supplies  
All-in-One and Gaming Power Supplies  
Notebook Adapters  
LCD TV and Plasma TV Power Supplies  
Power Tools Power Supply LED Drivers  
Protections include thermal shutdown (TSD),  
PFC open-loop protection (OLP), over-voltage  
protection (OVP), over-current limit (OCL) and  
LLC over-current protection (OCP), SO pin  
protection, and over-power protection (OPP).  
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.  
For MPS green status, please visit the MPS website under Quality  
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are  
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.  
The HR1211 is available in SOIC-20 and  
TSSOP-20 packages.  
FEATURES  
General System Features:  
HR1211 Rev. 1.0  
1/4/2021  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2021 MPS. All Rights Reserved.  
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