Preliminary
R7914
Enhanced Burst Triple-Mode PWM Controller with Integrated Power MOSFET for Flyback Converts
General Description
Features
The R7914 series consists of a high voltage power MOSFET and a high-performance, low cost, low start-up current and current mode PWM controller with burst triplemode to support green mode power saving operation. The R7914 integrates functions of soft start, Under VoItage LockOut (UVLO), Leading Edge Blanking (LEB), Over Temperature Protection (OTP) and i.
Enhanced Burst Triple-Mode PWM Controller
Preliminary
R7914
Enhanced Burst Triple-Mode PWM Controller with Integrated Power MOSFET for Flyback Converts
General Description
Features
The R7914 series consists of a high voltage power MOSFET and a high-performance, low cost, low start-up current and current mode PWM controller with burst triplemode to support green mode power saving operation. The R7914 integrates functions of soft start, Under VoItage LockOut (UVLO), Leading Edge Blanking (LEB), Over Temperature Protection (OTP) and internal slope compensation. It provides the users a superior AC/DC power application of higher efficiency, low external component counts and lower cost solution.
To protect the internal power MOSFET from being damaged by supply over voltage, the R7914 driver is clamped at 12V. Furthermore, R7914 features fruitful protections like Over Load Protection (OLP) and Over Voltage Protection (OVP) to eliminate the external protection circuits and provide reliable operation. R7914 is available in DIP-8 package.
Integrated 650V Power MOSFET Very Low Start-up Current (<30µA) 10/14V UVLO Soft Start Function Current Mode Control Jittering Switching Frequency Internal Leading Edge Blanking Built-in Slope Compensation Burst Triple-Mode PWM for Green-Mode Cycle-by-Cycle Current Limit Feedback Open Protection Over Voltage Protection Output Temperature Protection Over Load Protection Soft Driving for Reducing EMI High Noise Immunity Opto-Coupler Short Protection RoHS Compliant and Halogen Free
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