Datasheet > HF500-15

HF500-15

更新时间： 2024-10-29 01:15:59

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
24页	1579K
描述
Fixed Frequency Multi-Mode Flyback Regulator Integrated with Highly Rugged MOSFET

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HF500-15 数据手册

HF500-15

Fixed Frequency Multi-Mode

Flyback Regulator

Integrated with Highly Rugged MOSFET

DESCRIPTION

FEATURES

The HF500-15 is a fixed-frequency, current-

mode regulator with built-in slope compensation.

It combines a 700V MOSFET of high avalanche

ruggedness and a full-featured controller into

one chip for a low-power, offline, flyback,

switch-mode power supply.



700V/4.5 Integrated MOSFET with high

single pulse avalanche energy

Fixed-Frequency

Current-Mode-Control

Operation with Built-In Slope Compensation

Frequency Foldback Down to f_OSC(min)at

Light Load

Burst Mode for Low Standby Power

Consumption

At medium and heavy loads, the regulator

works in a fixed frequency with frequency

jittering, which helps to spread energy out in a

conducted mode. During a light-load condition,

the regulator freezes the peak current and

reduces its switching frequency to f_OSC(min)to

offer excellent efficiency at light load. At very

light loads, the regulator enters burst mode to

achieve low standby power consumption.

Frequency Jittering for a Reduced EMI

Signature



Over-Power Compensation

Internal High-Voltage Current Source

VCC Under-Voltage Lockout (UVLO) with

Hysteresis



Programmable Input B/O and OVP

Full protection features include thermal

shutdown, brown-in and brownout, VCC under-

voltage lockout (UVLO), overload protection

(OLP), short-circuit protection (SCP), input and

output over-voltage protection (OVP), and over-

temperature protection (OTP) .

Overload

Programmable Delay

Latch-Off Protection on TIMER

Thermal Shutdown (Auto-Restart with

Hysteresis)

Protection

(OLP)

with



Short-Circuit Protection (SCP)

Programmable Soft Start

The HF500-15 features timer-based fault

detection and over-power compensation to

ensure that the overload is independent of the

input voltage.

APPLICATIONS



Power Supplies for Home Appliances

Set-Top Boxes

Standby and Auxiliary Power

Adapters

The HF500-15 is available in a SOIC8-7B

package.

Maximum Output Power³

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.

230Vac±15%

85Vac~265Vac

Open

Adapter¹

Frame²

P_OUT

(W)

Notes:

1. Maximum continuous power in a non-ventilated enclosed adapter

measured at 50℃ ambient temperature.

2. Maximum continuous power in an open frame design at 50℃

ambient temperature.

3. The junction temperature can limit the maximum output power.

HF500-15 Rev. 1.03

1/10/2018

www.MonolithicPower.com

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

12 3 4 5 6 7...24

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