Datasheet > HFC0511GS

HFC0511GS

更新时间： 2024-02-23 00:16:02

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
26页	1567K
描述
Fixed-Frequency Flyback Controller with Ultra-Low, No-Load Power Consumption

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HFC0511GS 数据手册

HFC0511

Fixed-Frequency Flyback Controller with

Ultra-Low, No-Load Power Consumption

DESCRIPTION

The HFC0511 is a fixed-frequency, current-

FEATURES



Fixed-Frequency, Current-Mode Control

with Internal Slope Compensation

Frequency Foldback down to 27kHz at Light

Load

Burst Mode for Low Standby Power

Consumption, Meeting EuP Lot 6

Frequency Jitter to Reduce EMI Signature

X-Cap Discharge Function

Adjustable Over-Power Compensation

Internal High-Voltage Current Source

VCC Under-Voltage Lockout (UVLO) with

Hysteresis

mode

controller

with

internal

designed

slope

for

compensation

specifically

medium-power, offline, flyback, switch-mode

power supplies. The HFC0511 is a highly

efficient green-mode controller. At light loads,

the controller freezes the peak current and

reduces its switching frequency down to 27kHz

to achieve excellent light-load efficiency. At very

light loads, the controller enters burst mode to

achieve very low standby power consumption.



The HFC0511 offers frequency jittering to help

dissipate energy generated by the conducted

noise.



Brown-Out Protection on HV

Overload Protection with Programmable

Delay

The HFC0511 employs an over-power

compensation function to narrow the difference

of the over-power protection point between the

low line and high line.



Thermal Shutdown (Auto-Restart with

Hysteresis)

Latch-Off for External Over-Voltage

Protection (OVP) and Over-Temperature

Protection (OTP) on TIMER

Latch-Off for VCC Over-Voltage Protection

(OVP)

The HFC0511 also has an X-cap discharge

function to discharge the X-capacitor when the

input is unplugged. This helps lower the power

at no load.



Short-Circuit Protection (SCP)

Programmable Soft Start (SS)

Available in a SOIC8-7A Package

Full protection features include thermal

shutdown, VCC under-voltage lockout (UVLO),

overload

protection

(OLP),

over-voltage

APPLICATIONS

protection (OVP), and brown-out protection.



AC/DC Power for Small and Large

Appliances

The HFC0511 is available in a SOIC8-7A

package.



AC/DC Adapters for Notebook Computers,

Tablets, and Smart Phones

Offline Battery Chargers



LCD TVs and Monitors

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” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

HFC0511 Rev. 1.0

5/3/2017

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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