MPS EVHF900-P-00A Manual

DESCRIPTION
The HF900 is a flyback regulator with a 900V
MOSFET integrated, targeting high AC input
voltage application. The switching frequency
can be programmed with one external resistor
The EVHF900-P-00A Evaluation Board is
designed to demonstrate the capabilities of
HF900 and is also designed for off-line high
input voltage (85VAC~420VAC) application with
triple outputs (13.5V/300mA,
8V/50mA). The 8V output rail can power the
LDO for MCU power supply.
The EVHF900-P-00A
performance and meets EN55022 conducted
EMI requirements easily with frequency jittering
function. It has various protections like Over
Temperature Protection (OTP), VCC Under
Voltage Lockout (UVLO), Over Load Protection
(OLP), Over Voltage Protection (OVP), Short
Circuit Protection (SCP) and built-in PRO pin
for extra protection setting.
ELECTRICAL SPECIFICATION
Parameter Symbol
Input Voltage
Output1 Voltage V
Output1 Current I
Output2 Voltage V
Output2 Current I
Output3 Voltage V
Output3 Current I
EVHF900-P-00A Rev. 1.1
4/11/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
8V/50mA,
has an excellent
Value Units
V 85 to 420 VAC
IN
13.5 V
OUT1
300 mA
OUT1
8 V
OUT2
50 mA
OUT2
8 V
OUT3
50 mA
OUT3
www.MonolithicPower.com
© 2017 MPS. All Rights Reserved.
EVHF900-P-00A
85VAC/60Hz~420VAC/60Hz,
13.5V/300mA;8V/50mA;8V/50mA
Off-line SWITCHING Regulator
FEATURES

Internal Integrated 900V MOSFET

Programmable switching frequency up to
300kHz

Frequency jittering

Current-mode operation

Internal high voltage current source

Low standby power consumption via active
burst mode

Internal leading-edge blanking

Built-in soft-start function

Internal slope compensation

Built-in PRO pin pull-up auto restart function

Over-temperature protection

V under-voltage lockout with hysteresis
CC

Over-voltage protection on V

Time-based over-load protection

Short-circuit protection
APPLICATIONS

Power supply for meter

Any high AC input voltage power supply
All MPS parts are lead-free, halogen-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.
Warning: Although this board is designed to satisfy safety
requirements, the engineering prototype has not been
agency approved. Therefore, all testing should be performed
using an isolation transformer to provide the AC input to the
prototype board.
Evaluation Board
CC
1