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| 01W148A 3-phase full-wave fan motor driver IC BA6425FS Description BA6425FS is a 3-phase full-wave fan motor driver IC. Noise generated by the motor can be reduced by linear driving system. Forward/reverse rotation can be switched. This IC has current limit circuit and FG output. Dimension (Units : mm) 13.6 0.2 32 17 1.8 0.1 7.8 0.3 5.4 0.2 1 16 0.15 0.1 0.1 Features 1) Linear driving system 2) Forward/reverse select switch 3) Built-in current limiter and thermal shut down 4) FG output 0.11 0.8 0.36 0.1 SSOP-A32 Applications 3-phase full-wave fan motor Absolute Maximum Ratings (Ta=25C) Parameter Maximum supply voltage Maximum supply voltage Power dissipation Operating temperature range Storage temperature range Output current Junction temperature Symbol Vcc VM Pd Topr Tstg Iomax Tjmax -30 -55 Limits 18 18 0.95 1 Unit V V W +150 2 1000 150 ~ ~ +75 C C mA C 1 Derating : 7.6mW/C for operation above Ta=25C. 2 However, do not exceed Pd, and ASO. PCB (70mmx70mm, t=1.6mm) glass epoxy mounting. April, 2002 0.3Min. Recommended Operating Conditions (Ta=25C) Parameter Operating supply voltage range Operating supply voltage range Symbol VCC VM VCH Min. 5 3.5 1.1 Typ. -- -- -- Max. 17 17 3 VCC-1.0 Unit V V V Hall Amp in-phase voltage range If VM voltage is low, this IC may not be able to flow the output current by absolute maximum ratings. Electrical characteristics (Unless otherwise noted: Ta=25C, Vcc=VM=12V) Parameter VCC circuit current VM circuit current Output saturation voltage H Output saturation voltage L Hall bias current H1 Hall bias current H2, H3 Input-converted offset voltage Current limit voltage FR bias current Forward input voltage range Reverse input voltage range FG output L voltage FG hysteresis width Symbol ICC IM VOH VOL IBH1 IBH2 ISD VCL IFRL VFRH VFRL VFGL VHYS Min. -- -- 0.8 0.35 -4.0 -- -10 0.38 -2.0 7.5 0 -- 8 Typ. 3.7 76 1.21 0.55 -- -- -- 0.5 -- -- -- -- 18 Max. 6.0 120 1.6 0.75 2.0 2.0 10 0.62 0 VCC 4.5 0.2 28 Unit mA A V V A A mV V A V V V mV IO=2mA RNF=0.5 Conditions Output : Open, Input : HLH Output : Open, Input : HLH IO=350mA IO=350mA RNF=0.5 Application Circuit VM A1 A2 A3 RNF A1 A2 A3 Driver -- Current limit AMP PCV Output saturation prevent Differential divide Signal combiner Forward/ Reverse select FG FG VCC H1+ H1- H2+ H2- H3+ H3- FR HALL 1 HALL 2 HALL 3 + TSD PCI BA6425FS GND |
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