BD6971FS

Datasheet DC Brushless Fan Motor Drivers Multifunction Single-phase Full-wave Fan Motor Driver BD6971FS ●General description BD6971FS is a 1chip driver that composes H-bridge of power DMOS FET. Moreover, it is possible to correspond to 5V class motor because it starts from 3.5V. ●Package SSOP-A16 W (Typ.) x D (Typ.) x H (Max.) 6.60mm x 6.20mm x 1.71mm ●Features „ Driver including power DMOS FET „ Speed controllable by DC / direct PWM input „ PWM soft switching „ Quick start „ Current limit „ Lock protection and automatic restart „ Rotation speed pulse signal (FG) output SSOP-A16 ●Application „ Fan motors for general consumer equipment of desktop PC, and Projector, etc. ●Absolute maximum ratings Parameter Symbol Limit Supply voltage Power dissipation Vcc 20 Pd 812.5 *1 Operating temperature range Topr –40 to +100 Storage temperature range Tstg –55 to +150 Output voltage Output current Vo 20 Io 1.0 *2 Rotation speed pulse signal (FG) output voltage Vfg 20 Rotation speed pulse signal (FG) output current Ifg 10 Reference voltage (REF) output current Iref 5 Hall bias (HB) output current 1 Hall bias (HB) output current 2 Ihb1 Ihb2 5 10 *3 Input voltage (H+, H–, TH, MIN, CS) Vin 7 Junction temperature Tj 150 *1 Reduce by 6.5mW/°C over Ta=25°C. (On 70.0mm×70.0mm×1.6mm glass epoxy board) *2 This value is not to exceed Pd. *3 The condition of Ta=25°C and Vcc=12V Unit V mW °C °C V A V mA mA mA mA V °C ●Recommended operating conditions Parameter Ope...