GR8837H

Preliminary GR8837H Green-Mode PWM Controller with Hiccup Protection Features Current mode control Standby power below 100mW Under-voltage lockout (UVLO) Non-audible-noise green-mode control 100KHz 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 mode External OTP latch mode Over-load protection (OLP)-Auto recovery Mode Vcc OVP protection- Auto recovery Mode 300mA driving capability Description The GR8837H 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 GR8837H improves the performance and reduces the cost of power supplies. It is 6-pin SOT-26 package. Application Switching AC/DC Adapter Battery Charger Open frame SMPS Ordering and Marking Information SOT-26 Code 1 Code 2 Month Year 2008 Jan. 1 8 2009 Feb. 2 9 2010 Mar. 3 A 2011 Apr. 4 ● ● ● B 2016 Sep. 9 G 2017 Oct. A H 2018 Nov. B I 2019 Dec. C J Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture abil...