GR8030 Linear Fan Speed Controller with OTP Function Description Features The GR8030 is designed for programming the curve Linear fan speed controller of DC fan speed versus temperature via a NTC Wide fan speed control range thermistor and few counts of passive components. Programmable anti-lock start up timer The speed curve includes anti-lock with full speed Programmable minimum fan speed operation time, minimum fan speed when at idle Adjustable fan speed curve slope state, a knee point where fan speed starts to Programmable knee point and OTP point accelerate when temperature over the set point, a OTP protection with fault output programmable slope of fan speed versus NTC thermistor open full speed operation temperature, and OTP (over-temperature protection) SOT-26 package trig point. The GR8030 sends a low level on FSC pin when the OTP pin is lower than the set point of Applications temperature protection level. It is also built-in the LCD TV power supply NTC thermister open with full speed operation Game machine power supply function. Industrial or medical power supply PC power supply Server power supply Ordering and Marking Information GR8030 Package Code RoHS Code G: Green (Halogen Free) Device C: SOT-26 L: PB Free Device SOT-26 D0 X X Code 1 Code 2 X X X Serial No. Code 1 8 9 A B G H I J Year 2008 2009 2010 2011 2016 2017 2018 2019 Code 2 1 2 3 4 9 A B C Month Jan. Feb. Mar. Apr. Sep. Oct. Nov. Dec. Grenergy OPTO Inc. reserves the right to make changes to improve reliability or manufacture ability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. 2011.06 Ver.1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com 1 GR8030 Pin Configuration TOP VIEW DRV 1 VCC 6 GND FSC 5 2 VTH 3 4 OTP Pin Description Pin No. Symbol Description 1 DRV Drive external BJT base 2 GND Ground 3 VTH Temperature sensor (NTC thermistor ) input 4 OTP Over-temperature trip point 5 FSC Set minimum fan speed output of OTP flag 6 VCC Power supply Absolute Maximum Ratings Supply voltage VCC ------------------------------------------------------------------------------------------------------- +20V DRV, VTH, VFSC, OTP -------------------------------------------------------------------------------------- -0.3 ~ VCC+0.3V Junction temperature ----------------------------------------------------------------------------------------------------- 150 Operating ambient temperature ------------------------------------------------------------------------------ -20 ~ 85 Storage temperature range ---------------------------------------------------------------------------------- -65 ~ 150 SOT-26 package thermal resistance ------------------------------------------------------------------------------ 250/W Power dissipation (SOT-26, at ambient temperature = 85 ) ------------------------------------------------ 250mW Lead temperature (All Pb free packages, soldering, 10 sec) -------------------------------------------------- 260 ESD voltage protection, human body model -------------------------------------------------------------------------- 2KV ESD voltage protection, machine model ------------------------------------------------------------------------------ 200V 2011.06 Ver.1.0 Copyright Grenergy OPTO, Inc. www.grenergy-ic.com 2