HR1213GY中文資料美國(guó)芯源數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

DESCRIPTION

The HR1213 is a multi-mode PFC and current

mode LLC combo controller that can be

configured via the UART interface. Powersaving technology helps the device optimize

efficiency across the full operating range.

The PFC controller employs a patented, digital

average current control scheme to achieve

hybrid continuous conduction mode (CCM) and

discontinuous conduction mode (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.

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.

The HR1213 has an internal, high-voltage (HV)

current source for start-up, meaning that a

traditional start-up resistor or external circuit is

not required. An external DC source can provide

a supply for VCC.

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).

The HR1213 is available in SOIC-20 and

TSSOP-20 packages.

FEATURES

? General System Features:

o High-Voltage Current Source for StartUp

o UART Interface for Configurations

o User-Friendly GUI

o Available in SOIC-20 and TSSOP-20

Packages

? PFC Controller:

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

? LLC Controller:

o 600V HS 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 under Light

Loads

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 and OPP with Auto-Restart or

Latch-Off Mode

o Configurable Protections on the SO Pin

APPLICATIONS

? Desktop PCs and ATX Power Supplies

? All-in-One and Gaming Power Supplies

? Notebook Adapters

? TV Power Supplies

? Power Tools Power Supplies

? LED Drivers