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LB11970FV Single-phase Full-wave Driver for Fan Motor Overview The LB11970FV is a single-phase full-wave driver for fan motor. www.onsemi.com Functions Single-phase full-wave drive (16V to 1.2A output transistor incorporated) Variable speed function using thermistor input and external signal incorporated Enables silent and low-vibration variable speed control through direct PWM control with separately-excited upper Tr Current limiter circuit (limit at I =480mA with R =1 connection, the O L limiter value determined with Rf) Kick-back absorption circuit incorporated Low-consumption, low-loss, and low-noise drive enabled by the soft switching SSOP18 (225mil) circuit during phase shift Regeneration Di incorporated with less external parts HB incorporated Lock protection and automatic reset functions incorporated FG (rotation detection) output Thermal shutdown circuit incorporated XXXXXXXXXX Applications YMDDD Personal computer power supply systems CPU cooling fan systems XXXXX = Specific Device Code Y = Year Specifications M = Month Absolute Maximum Ratings at Ta = 25C (Note1) DDD = Additional Traceability Data Parameter Symbol Conditions Ratings Unit V maximum supply voltage V max 17 V CC CC ORDERING INFORMATION VM maximum supply voltage VM max 17 V See detailed ordering and shipping OUT pin maximum output current I max 1.2 A OUT information on page 8 of this data OUT pin output withstand voltage V max 18 V OUT sheet. HB maximum output current HB 10 mA VTH, RMI input pin withstand voltage VTH RMI max 7 V P-IN input pin withstand voltage VP-IN max V V CC FG output pin output withstand voltage VFG max 18 V FG output current IFG max 10 mA Specified Allowable power dissipation Pd max substrate 0.8 W (Note2) Operating temperature range Topr -30 to 90 C Storage temperature range Tstg -55 to 150 C 1. Stresses exceeding those listed in the Maximum Rating table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 2. Specified substrate: 30mm30mm0.8mm, paper phenol. Semiconductor Components Industries, LLC, 2016 1 Publication Order Number: November 2016- Rev. 1 LB11970FV/D