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OB2223F

On-Bright Electronics
Part Number OB2223F
Manufacturer On-Bright Electronics
Description High Precision Low Cost MCM Power Switch
Published Jun 14, 2016
Detailed Description OB2223F High Precision Low Cost MCM Power Switch GENERAL DESCRIPTION OB2223F is a high performance, high precision and ...
Datasheet PDF File OB2223F PDF File

OB2223F
OB2223F

Overview
OB2223F High Precision Low Cost MCM Power Switch GENERAL DESCRIPTION OB2223F is a high performance, high precision and low cost PWM Power switch for non-isolated buck and flyback application.
It combines a dedicated current mode PWM controller (with a high voltage power MOSFET with SOP8/DIP7 package) and built-in error amplifier optimized for good overshoot and dynamic response for low cost and component count.
With precise inner resistor divider, precise reference of EA ， accurate constant voltage regulation 12V at universal AC input can be guaranteed.
For high efficiency, oscillator with frequency-reduction and burst mode control is implemented.
And EMI performance is achieved with On-Bright proprietary frequency shuffling technique and soft gate driver design.
OB2223F offers power on soft start control and protection coverage with auto-recovery features including Cycle-by-Cycle current limiting, Over Loading Protection, Output Short-Circuit Protection, On-Chip OTP,VDD OVP, and UVLO.
TYPICAL APPLICATION FEATURES • Low cost and component count buck application • Current Mode Control • Multiple mode control with good dynamic response • Oscillator of fixed maximum switching frequency with frequency-reduction and burst mode control for high efficiency • Frequency shuffling for EMI improvement • Power on Soft-start • Built-in Leading Edge Blanking (LEB) • Cycle-by-Cycle Current Limiting • Over Loading Protection • Output Short-Circuit Protection • VDD Under Voltage Lockout with Hysteresis (UVLO) • VDD OVP • On-Chip OTP APPLICATIONS Low Power AC/DC offline SMPS for • Electrical Appliance • Linear Regulator/RCC Replacement OB2223F is offered in SOP8/DIP7 package.
AC IN OB2223F 1 VDD GND 8 2 COMP GND* 7 3 ENB DRAIN 6 4 CS DRAIN 5 Note : GND* Only in SOP8 package ©On-Bright Electronics Confidential -1- DC OUT Preliminary Datasheet OB_DOC_DS_2223F00 OB2223F High Precision Low Cost MCM Power Switch GENERAL INFORMATION Pin Configuration The pin map is shown as ...


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