OB2734D Datasheet PDF | On-Bright Electronics

On-Bright Electronics OB2734D

OB2734x is a highly integrated current mode PWM controller with a 650V GaN FET integrated. It is optimized for high performance, low EMI, low standby power consumption and wide output voltage range PD adapter solutions, together with PD secondary controller, such as OB2623. The controller is as well compatible with cost effective offline flyback converter applications covering a wide output range.

Part No.	OB2734D
Datasheet	OB2734D Download
Manufacturer	On-Bright Electronics
Description	High Performance Multi-Mode PWM Power Switch
Buy	Stock & Price

GENERAL DESCRIPTION

At full load conditions, it operates in the valley switching QR mode both in the low line input and high line input. When the loading goes low, it operates in PFM mode for high power conversion efficiency. When the load is very small, the IC operates in ‘Extended Burst Mode’ to minimize the standby power loss. As a result, high conversion efficiency can be achieved in the whole loading range. In addition, at high AC line input conditions, it operates in a forced quasi-resonance (QR) valley switching mode with On-Bright proprietary technology for excellent EMI performance. OB2734x offers complete protection including cycle-by-cycle current limiting (OCP), over load protection (OLP), internal over temperature protection (OTP), output short protection (SCP), output and VDD over voltage protection. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. The tone energy at below 20KHz is minimized to avoid audio noise during operation.