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AN8261
Brushless Motor Driver
sOverview
The AN8261 is a 3-phase full-wave brushless motor drive ICand optimum for driving the air conditioner fan motors, etc.12321.7±0.345676.3±0.2518171514131211100.51min.3.8±0.25 (3.45)2.54 0.3+0.15– 0.2Unit : mm0.5±0.11.2±0.25sFeatures
•Operating supply voltage range : VCC= 4.5 to 7V•3-phase full-wave drive, external power transistor•Built-in low-voltage protective circuit•Built-in thermal protective comparator circuit•Built-in Hall amplifiers with hysteresis16sApplications
Driving the brushless motors such as air conditioner fanmotors, etc.3 ~15˚7.62±0.2518-pin DIL Plastic Package (DIP018-P-0300D)sBlock Diagram
VCC1231817Hysteresis Amp.A1615Hysteresis Amp.B1413Hysteresis Amp.CVREFGND4TSD Hysteresis ControlVCCMonitorProtectorSignal Processing71281191065元器件交易网www.cecb2b.com
s Absolute Maximum Ratings (Ta=25˚C)
Parameter
Supply voltageSupply currentOutput drive currentPower dissipation
Operating ambient temperatureStorage temperature
SymbolVCCICCI7, I8, I9I10, I11, I12
PDToprTstg
Rating7.580–7 to + 25800–20 to + 80–55 to +150
UnitVmAmAmW˚C˚C
s Recommended Operating Range (Ta=25˚C)
Parameter
Operating supply voltage range
SymbolVCC
Range4.5V to 7V
s Electrical Characteristics (Ta=25˚C)
Parameter
Supply current 1Supply current 2
Sensor amp. input voltage L to HSensor amp. input voltage H to LFG output voltage low levelPower drive output voltage high levelPower drive output current high levelPower drive output voltage low level 1Power drive output voltage low level 2Power drive output voltage low level 3Sensor amp. input voltage hysteresis widthFG output pull-up resistance valueProtect reset voltage
Temperature protect operating voltageTemperature protect resetting voltageTSD bias currentReference voltage
Reference voltage regulationReference voltage load regurationVCC protect hysteresis width
Temperature protect operating voltage Vref ratioTemperature protect operating voltage Vref ratioSymbolICC1ICC2VSLHVSHLVOLVPOHIPOHVPOL1VPOL2VPOL3VSWROVRVTVTRITSDVrefVrefREGVVrefREGVVCCWVT/VrefVR/Vref
VCC=5VVCC=5VVCC=5VVCC=5V
VCC=5V, VTSD=0.5VVCC=5VVCC=4V→7V
VCC=5V, IO=0mA→10mA
10048.525.3
2105027.42
2.3
VCC=5VVCC=3.5VVCC=5VVCC=5V
VCC=5V, IPO=5mAVCC=5V, IPO=–3mAVCC=5V, VPO=2VVCC=5V, IPO=10mAVCC=5V, IPO=20mAVCC=5V, IPO=15mAVCC=5VIW=30µA
1283.510.5
201041.150.63
3.6–8
–6
–40.40.60.628124.51.30.8102.60.150.145051.529.5
1–20
Condition
min
typ404710–10
max566220–10.4
UnitmAmAmVmVVVmAVVVmVkΩVVVµAVVVmV%%
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sApplication Circuit
VM30VVCC5V470Ω470Ω1kΩ18HA+17HA–16HB+15HB–50V1µF+–1VCCUH7VH8WH914HC+13HC–2FG13FG26VrefAN8261WL10VL11TSD5GNDUL1241kΩ1kΩ270Ω270Ω270Ω56ΩGNDs Pin Descriptions
Pin No. Pin name1VCCDescriptionSupply voltage input pinI/OIDC/waveform5VEquivalent circuit470Ω56Ω5V2FG1FG signal output pinO0V10kΩ25V3FG2FG signal output pinO0V4GNDGND pinI0V10kΩ35TSDTemperature protect input signal pinI1.15V56VREFReference voltage outputpin (TSD reference voltage)O2.3V6元器件交易网www.cecb2b.com
s Pin Descriptions (cont.)
Pin No. Pin name7101112131415161718UHVHWHPower driver output pinWLVLULHC–HC+HB–HB+HA–HA+Hall element input pinI131517141618DescriptionI/ODC/waveformVCCEquivalent circuitVCC67O101112s Logic Diagram
Symbol
HA+HA–
InputHB+HB–HC+HC–FG1FG2UH
OutputVHWHULVLWL
No.
Pin No.
181716151413237121110
1HLLHLHLLLLHHLL
2HLHLLHLHLLHLHL
3LHHLLHHLHLLLHL
4LHHLHLHHHLLLLH
5LHLHHLHLLHLLLH
6HLLHHLLHLHLHLL
