LB1922 - Sanyo

LB1922 Three-Phase Brushless Motor Driver

and Notes on External Components 1. Speed control circuit Speed control in this IC is implemented with the combination of a speed discriminator circuit and a PLL circuit. The speed discriminator circuit outputs an error output once every two FG periods using a charge pump technique. The PLL circuit outputs a phase error once every FG period, also using a cha.

Features

perating Ranges at Ta = 25°C Parameter Supply voltage range FG Schmitt output applied voltage Symbol VCC VM VFGS IO1 Fixed-voltage output current IO2 IO3 FG Schmitt output current Lock detection output current IFGS ILD 7 V output 5 V output 4 V output Conditions Ratings 9.5 to 18 9 to 18 0 to 8 0 to
  –20 0 to
  –20 0 to
  –15 0 to 5 0 to 20 Unit V V V mA mA mA mA mA SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 63097HA(OT) No. 5679-1/10 LB1922 Electrical Characteristics at Ta = 25°C, VCC = VM = 12 V Parameter.