AN8261 PANASONIC | Alldatasheet

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Technical content

The AN8261 is a 3-phase full-wave brushless motor drive IC and optimum for driving the air conditioner fan motors, etc. n Features

  • 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 hysteresis n Applications Driving the brushless motors such as air conditioner fan motors, etc. AN8261 Brushless Motor Driver 3.8–0.25 (3.45) 1.2–0.25 0.5–0.12.54 Unit : mm 6.3–0.25 21.7–0.3 3 ~15˚ 0.3 +0.1 – 0.25 7.62–0.25 18-pin DIL Plastic Package (DIP018-P-0300D) 0.51min. V CC 18 7 2 3 Hysteresis Amp.A Hysteresis Amp.B Signal Processing Hysteresis Amp.C TSD Hysteresis Control 4GND V REF 6 5 V CC Monitor Protector n Block Diagram

Param eter Sym bol R ating U nit n A bsolute M axim um R atings (Ta=25˚C ) 7.5 IC CSupply current m A80 I7, I8, I9 I10, I11, I12 O utput drive current m A–7 to + 25 PDPow er dissipation m W800 ToprO perating am bient tem perature ˚C–20 to + 80 TstgStorage tem perature ˚C–55 to +150 Param eter Sym bol R ange n R ecom m ended O perating R ange (Ta=25˚C ) O perating supply voltage range V C C 4.5V to 7V Param eter Sym bol C ondition m in typ m ax n Electrical C haracteristics (Ta=25˚C ) Supply current 1 IC C 1 56 m A40V C C =5V Supply current 2 IC C 2 m A47V C C =3.5V Sensor am p. input voltage L to H V SLH 20 m V10V C C =5V Sensor am p. input voltage H to L V SH L m VV C C =5V FG output voltage low level V O L VV C C =5V , IPO =5m A VV C C =5V , IPO =–3m APow er drive output voltage high level V PO H m A–6V C C =5V , V PO =2V –10 Pow er drive output current high level IPO H VV C C =5V , IPO =10m APow er drive output voltage low level 1 V PO L1 VPow er drive output voltage low level 2 V PO L2 V V C C =5V , IPO =20m A Pow er drive output voltage low level 3 V PO L3 m V20 V C C =5V , IPO =15m A 4.5 0.6 0.4 0.6 0.4 –20 3.6 Sensor am p. input voltage hysteresis w idth V SW V C C =5V kΩ10IW =30µAFG output pull-up resistance value R O V4Protect reset voltage V R V1.15Tem perature protect operating voltage V T V0.63 V C C =5V 0.8 1.3 0.5 3.5 Tem perature protect resetting voltage V TR V C C =5V µA10TSD bias current ITSD V C C =5V , V TSD =0.5V V2.3 2.62R eference voltage V ref V C C =5V V0.15R eference voltage regulation V refR EG V V C C =4V → 7V V0.1R eference voltage load reguration V refR EG V V C C =5V , IO =0m A → 10m A m V210 450100V C C protect hysteresis w idth V C C W %50 51.548.5Tem perature protect operating voltage V ref ratio V T/V ref V C C =5V %27.4 29.525.3Tem perature protect operating voltage V ref ratio V R /V ref V C C =5V U nit

+ A N 8261 H A H A V C C G N D 50V 1µF 56Ω 56Ω 1kΩ 470Ω 1kΩ 470Ω 1kΩ 470Ω V M 30V H B H B H C H C FG 1 FG 2 V ref TSD G N D V C C U L V L W L W H V H U H 270Ω 270Ω 270Ω n Application Circuit n Pin D escriptions V C C FG 1 FG 2 G N D TSD V R EF I O O I I O 2.3V Supply voltage input pin FG signal output pin FG signal output pin G N D pin Tem perature protect input signal pin D escription Equivalent circuitPin N o. Pin nam e I/O D C /w aveform R eference voltage output pin (T SD reference voltage) 10kΩ 10kΩ 1.15V

n Pin D escriptions (cont.) U H V H W H W L V L U L H C H C + H B – H B + H A – H A + O I Pow er driver output pin H all elem ent input pin D escription Equivalent circuitPin N o. Pin nam e I/O D C /w aveform V C C V C C H A + H A – H B + H B – H C + H C – Pin N o. N o. n Logic D iagram FG 1 FG 2 U H V H W H U L V L W L H L L H L H L L L L H H L L H L H L L H L H L L H L H L L H H L L H H L H L L L H L L H H L H L H H H L L L L H L H L H H L H L L H L L L H Sym bol 1 2 3 4 5 6 H L L H H L L H L H L H L L InputO utput