GR8837E

Preliminary GR8837E Green-Mode PWM Controller with Latch Protection Features Current Mode Control Standby Power below 100mW Non-Audible-Noise Green-Mode Control 65KHz Switching Frequency Internal Leading-Edge Blanking Internal Slope Compensation Internal Soft Start Gate Output Voltage Clamp Jitter and Soft Driving for Reducing EMI External OVP Latch Off Mode External OTP Latch Off Mode Over-Load Protection (OLP)-Auto Recovery Mode Vcc OVP Protection- Latch Mode 400mA Driving Capability Description The GR8837E is a highly-integrated, low startup current, current mode PWM controller with green-mode function. The integrated functions also include the leading-edge blanking of the current sensing, internal slope compensation, soft start OLP, and OCP. Besides, The RTL pin latch function by injecting a high over 3.5V to provide OVP latch off and low below 1V to provide OTP latch off protection. These functions enable the power supply to easily meet even the strictest power requirements. The GR8837E improves the performance and reduces the cost of power supplies. It is a 6-pin SOT-26 package which could drive up to around 65W power converter. Application Switching AC/DC Adapter Battery Charger Open Frame SMPS Ordering and Marking Information SOT-26 Code 1 8 Year 2008 Code 2 1 Month Jan. 9 2009 2 Feb. A 2010 3 Mar. B 2011 4 Apr. ● ● ● G 2016 9 Sep. H 2017 A Oct. I 2018 B Nov. J 2019 C Dec. Grenergy OPTO Inc. reserves the right to make changes to improve reliability or ...