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HR1215

更新时间： 2024-11-19 17:02:07
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 1411K
描述
多模式 PFC 和电流模式 LLC组合控制器，X 电容放电期间无需关断

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HR1215 数据手册

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HR1215  
DESCRIPTION  
FEATURES  
The HR1215 is a multi-mode PFC and current  
mode LLC combo controller that is configurable  
via a UART interface. Power-saving technology  
optimizes efficiency across the entire operating  
range.  
•
General System Features:  
o HV Current Source for Start-Up  
o Smart X-Capacitor Discharge during AC  
Dropout, Approved by IEC62368  
o UART Interface for Configurations  
o User-Friendly GUI for Digital PFC  
PFC Controller:  
o CCM/DCM Multi-Mode PFC Control with  
High Efficiency across All Loads  
o Up to 250kHz Operating Frequency  
o High PF due to Input Capacitor (CIN)  
Current Compensation  
o Configurable Frequency Jittering  
o Configurable Soft Start (SS)  
o Configurable Burst On  
o Configurable AC Input Brown-In/Out  
o Cycle-by-Cycle Current Limiting  
o OLP and OVP  
The PFC controller employs a patented, digital  
average current control scheme to achieve  
hybrid continuous conduction mode and  
discontinuous conduction mode (CCM/DCM). At  
heavy loads, CCM reduces the peak MOSFET  
current so that the controller can be used across  
a wider load range. At light loads, DCM reduces  
the switching frequency (fSW) for improved  
efficiency. Burst mode has configurable, digital  
soft switching that can improve both light-load  
efficiency and audible noise.  
•
Current mode control is implemented in the LLC  
stage for improved system stability and fast  
transient response. Three operation modes are  
implemented based on the different load  
conditions: steady state, skip mode, and burst  
mode. This allows different load conditions to be  
optimized independently for improved 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) are also applied to guarantee  
zero-voltage switching (ZVS) without capacitive  
mode.  
•
LLC Controller:  
o 600V High-Side MOSFET (HS-FET)  
Gate Driver with Bootstrap (BST) Diode  
and High dV/dt Immunity  
o Current Mode Control  
o Up to 500kHz in Steady State  
o ADTA with Min and Max Limit  
o Burst Mode/Skip Mode Switching at  
Light Loads  
o Configurable Burst Frequency with Low  
Audible Noise  
o Configurable SS  
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 HR1215 has an internal, high-voltage  
current source for start-up. This means 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 while 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  
Full protection features include thermal  
shutdown, open-loop protection (OLP), over-  
voltage protection (OVP), over-current limit  
(OLC), 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 HR1215 is available in a SOIC-20 package.  
HR1215 Rev. 1.0  
1/30/2023  
MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2023 MPS. All Rights Reserved.  
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