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OB OB2269CAP

Manufacturer
OBAsian Brands
MPN
OB2269CAP
LCSC Part #
C107220
Packaging
DIP-8
Customer #
Key Attributes
20mA 60kHz~70kHz 12V~23V Flyback DIP-8 AC DC Converters, Offline Switchers
DatasheetOB OB2269CAP
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerOB
PackagingDIP-8
Operating Temperature-20℃~+85℃
Output Current20mA
Frequency - Switching60kHz~70kHz
Pd - Power Dissipation-
Voltage - Breakdown-
Voltage - Supply12V~23V
TopologyFlyback
FeaturesLight load efficient mode;EMI optimization (spread spectrum);Audio noise elimination;Leading edge blanking;Slope compensation;Under-voltage lockout;Over Voltage Protection;Overtemperature protection (OTP);Over Current Protection;Under Voltage Protection
Output Voltage-
Duty Cycle(Max)80%
Feedback SystemSecondary-Side Feedback
Working ModePWM Modulation
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Introduction

AI Translation

OB2269C is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design with OB2269C. A large value resistor could thus be used in the startup circuit to minimize the standby power. The internal slope compensation improves system large signal stability and reduces the possible subharmonic oscillation at high PWM duty cycle output. Leading-edge blanking on current sense input removes the signal glitch due to snubber circuit diode reverse recovery. This greatly helps to reduce the external component count and system cost in application. OB2269C offers complete protection coverage with automatic self-recovery feature including Cycle-byCycle current limiting (OCP), over load protection (OLP), over temperature protection (OTP), VDD over voltage protection (OVP) and under voltage lockout (UVLO). The Gate-drive output is clamped at 18V to protect the power MOSFET. In OB2269C, OCP threshold slope is internally optimized to reach constant output power limit over universal AC input range. Excellent EMI performance is achieved with OnBright proprietary frequency shuffling technique together with soft switching control at the totem pole gate drive output.

Features

AI Translation
  • On-Bright Proprietary Frequency Shuffling Technology for Improved EMI Performance
  • Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
  • Audio Noise Free Operation
  • External Programmable PWM Switching Frequency
  • Internal Synchronized Slope Compensation
  • Low VIN/VDD Startup Current(6.5uA) and Low Operating Current (2.3mA)
  • Leading Edge Blanking on Current Sense Input
  • Complete Protection Coverage With Auto SelfRecovery
  • External Programmable Over Temperature Protection (OTP)
  • With On-chip VDD OVP for System OVP
  • Under Voltage Lockout with Hysteresis (UVLO)
  • Gate Output Maximum Voltage Clamp (18V)
  • Line Compensated Cycle-by-Cycle Overcurrent Threshold Setting For Constant Output Current Limiting Over Universal Input Voltage Range (OCP)
  • Over Load Protection. (OLP)

Applications

AI Translation
  • Offline AC/DC flyback converter for
  • Laptop Power Adaptor
  • PC/TV/Set-Top Box Power Supplies
  • Open-frame SMPS
  • Battery Charger