AN6612 PANASONIC | Alldatasheet

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Technical content

The AN6612 and the AN6612S are the electronic gov- ernor circuits suitable for the rotating speed control of a low voltage and compact DC motor which is used for a small tape recorder, etc. n Features

  • Wide range of operating voltage : VCC (opr) =1.8V ~ 8V
  • 2 package types
  • Fewer external parts
  • Speed control in steps with linear fine control
  • Output current limiting circuit is built-in AN6612, AN6612S Motor Control Circuits 6.3–0.3 3.8–0.25 (3.45) 2.54 1.2–0.25 0.5–0.1 + 0.1 – 0.05 9.4–0.3 0.51min. 8-Lead DIP Package (DIP008-P-0300B) Unit : mm AN6612 8 7 6 5 1 2 3 4 Comparator 1kΩ 10kΩ R 9 R 10 Ref.Voltage Start Circuit V M V O V B GND V RM V RP V I V CC n Block Diagram 4 0.4–0.25 0.3 0.15 0.65 1.5–0.2 5.0–0.3 4.2–0.3 6.5–0.3 8-Lead SOP Package (SOP008-P-0225A) Unit : mmAN6612S

ICs for MotorAN6612, AN6612S Pin N o. Pin N am e C urrent Sensor R eference V oltage C ontrol V C C n Pin D escriptions Pin N o. Pin N am e G N D B ase O utput B ase M otor pin n Absolute M axim um R atings (Ta= 25˚C ) V C C PD Topr Tstg Supply V oltage Supply C urrent Pow er D issipation O perating A m bient Tem perature Storage Tem perature V m A m W Param eter Sym bol R ating U nit 400 200 –20 ~ + 75 –40 ~ +150 –40 ~ +125 A N 6612 A N 6612S A N 6612 A N 6612S n Electrical C haracteristics (Ta = 25˚C ) V C C = 3V V C C = 3V , R 2–1 = 10kΩ V C C = 1.8V , R a = 4.9Ω Param eter Sym bol C ondition m in. typ. m ax. U nit 1.9 1.32 0.1 – 0.035 0.7 Supply C urrent R eference V oltage Starting C urrent V oltage V ariable C haracteristics for R otating Speed Tim e D rift C haracteristics for R otating Speed Tem perature V ariation C haracteristics for R otating Speed O utput C urrent Lim it V oltage V 2– 1 Ia |ΔN V | |ΔN T| ΔN A * V t (1 – 5) m A V m A rpm /V % /˚C V 1.24 250 1.40 0.8 * In case that only IC tem perature is changed. V C C = 1.8V ~ 4V , IL = 72m A (1.7g · cm ) V C C = 3V , IL = 72m A , t = 15s ~ 10m in. V C C = 3V , IL = 72m A , V C C = 3V 0.6 A N 6612 A N 6612S – + – M 2.2µF 10Ω 910Ω 1kΩ 10kΩ –V C C +V C C 0.47µF 2SA 881A M otor V R 3kB V R 500Ω B 0.5Ω M otor C onstants R a : Internal resistor = 4.9Ω K a : Electrom otive force constant = 0.4m V /rpm K T : Torque constant = 29g · cm /A n Application Circuit