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MPS - Fixed-Frequency Flyback Controller

Numéro de référence HFC0310
Description Fixed-Frequency Flyback Controller
Fabricant MPS 
Logo MPS 





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HFC0310 fiche technique
HFC0310
The Future of Analog IC Technology
DESCRIPTION
The HFC0310 is a flyback contro ller with fixed-
frequency operation.
The controller uses p eak current mode to
provide exc ellent transient response and ease
loop compensation. W hen the ou tput power
falls below a given level, the cont roller enters
burst mod e to lower the stand-by power
consumption.
An external capacitor connected between the
FSET pin and GND programs the HFC031 0
switching fr equency. Otherwise, th e HFC0310
uses a frequency shaping function that greatly
reduces the noise level, and reduces the cost of
the EMI filter.
The HFC0 310 provides various protection s,
such as the rmal shutdown, V CC un der-voltage
lockout, o ver-load p rotection, over-voltage
protection, and short-circuit protection.
The HFC0310 is available in a SOIC8 package.
Fixed-Frequency
Flyback Controller
FEATURES
Programmable switch ing frequency up to
600kHz
Frequency shaping (±3.5%)
Current-mo de operation
Very low start-up current (12μA)
Very low standby power consumption via
active-burst mode
Internal 350ns leading-edge blanking
Built-in 3ms soft-start function
Internal slope compensation
Built-in PRO pin pull-up (>3.25V) auto-
restart function
Over-te mperature protection
V CC under-voltage lockout with hysteresis
Over-voltage protection on VCC
Time-based over-load protection
Short-circuit protection
APPLICATIONS
Power Meters
Switching Mode Power Supplies
AC/DC Adapters, Switching Chargers
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
HFC0310 Rev. 1.01
www.MonolithicPower.com
6/19/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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