BD6345FV-E2 ROHM

Datasheet DC Brushless Motor Drivers Three-phase Full-wave DC Brushless Fan Motor Driver BD6345FV General description Package W (Typ.) x D (Typ.) x H (Max.) BD6345FV is a three-phase sensor-less fan that suit for speed controllable fans. SSOP-B20 6.50mm x 6.40mm x 1.45mm Its feature is sensor-less drive which doesnt require a hall device as a location detection sensor. Furthermore, introducing a PWM soft switched driving mechanism achieves silent operations and low vibrations. Features Sensor-less drive Lock protection and automatic restart Rotating speed pulse signal (SOUT) output SSOP-B20 Application For 12V fan for general consumer equipment Absolute maximum ratings Parameter Symbol Limit Unit V Supply voltage CC 20 V 1 P Power dissipation d 1200* mW T Storage temperature stg -55 to +150 T Operating temperature opr -40 to +100 V Output voltage omax 20 V 2 I Output Current omax 1.2* A V SOUT signal output voltage SOUT 20 V I SOUT signal output current SOUT 10 mA I REF current ability REF 8 mA V Input voltage (TOSC) IN 6.5 V Tjmax Junction temperature 150 C *1 Reduce by 9.6mW/C over Ta=25C (on 70.0mm70.0mm1.6mm glass epoxy board) *2 T not exceed Pd and ASO *2 It is permissible to 1.5A, 1 or less second. Recommended operating conditions Parameter Symbol Limit Unit Operating supply voltage range V 5.5 to 17.0 V CC Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays www .rohm.com TSZ02201-0H1H0B100290-1-2 2012 ROHM Co., Ltd. All rights reserved. 1/15 TSZ2211114 001 31.Jul.2012 Rev.002DatasheetDatasheet BD6345FV Pin configuration Pin description P/No. T/Name Function 1 GND GND terminal 2 GND GND terminal 3 GND GND terminal 4 REF Reference voltage terminal 5 TEST1 TEST terminal 6 TEST2 TEST terminal 7 N.C. 8 N.C 9 U Motor output U 10 PGND Motor GND terminal 11 V Motor output V 12 W Motor output W 13 VCC Power Supply terminal 14 COM Motor central tap terminal Oscillating capacitor connecting 15 TOSC terminal for synchronous driving Fig.1 Pin configuration 16 N.C Rotating speed pulse signal output 17 SOUT terminal 18 GND GND terminal 19 GND GND terminal 20 GND GND terminal Block diagram Fig.2 Block diagram www.rohm.com TSZ02201-0H1H0B100290-1-2 2012 ROHM Co., Ltd. All rights reserved. TSZ2211115 001 2/15 31.Jul.2012 Rev.002