On-Bright OB2273
OB2273 is a highly integrated current mode PWM ■ Power on Soft Start Reducing MOSFET Vds control IC optimized for high performance, low Stress standby power and cost effective offline flyback ■ Frequency shuffling for EMI converter applications. OB2273 offers complete protection coverage with ■ 科 Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design ■ ■ ■ 乐 Audio Noise Free Operation Fixed 65KHZ Switching Frequency Comprehensive Protection Coverage o o VDD Under Voltage Lockout with Hysteresis (UVLO)...| Part No. | OB2273 |
|---|---|
| Datasheet | OB2273 Download |
| Manufacturer |  On-Bright |
| Description | High Performance Current Mode PWM Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
FEATURES
PWM switching frequency at normal operation is internally fixed and is 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 and low standby design with OB2273. OB2273 offers complete protection coverage with● 科 Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
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● 乐 Audio Noise Free Operation Fixed 65KHZ Switching Frequency Comprehensive Protection Coverage o o VDD Under Voltage Lockout with Hysteresis (UVLO) Cycle-by-cycle over current threshold o setting for constant output power limiting t over universal input voltage range auto-recovery including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), and l VDD under voltage lockout (UVLO). It also provides the protections with latched shut down a including over temperature protection (OTP), and i over voltage (fixed or adjustable) protection (OVP).
