M54687FP Datasheet PDF

MITSUBISHI M54687FP Bi-DIRECTIONAL MOTOR DRIVER WITH GOVERNOR DESCRIPTION The M54687FP is a semi...

MITSUBISHI M54687FP Bi-DIRECTIONAL MOTOR DRIVER WITH GOVERNOR DESCRIPTION The M54687FP is a semiconductor integrated circuit that is capable of directly controlling the rotating direction and rotating speed of a smallsize bi-directional motor rotating in both forward and reverse directions. PIN CONFIGURATION (TOP VIEW) Speed control 1 R input S input PSC1 R S GND L input Power supply L L-VCC 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC O2 Output 2 P-VCC Power supply O1 VR GND Output 1 High speed control FEATURES q Capable of controlling the speed in forward and reverse rotating directions q Capable of controlling the speed in high speed mode q Large output current drive (IO(max) =700mA) q Built-in clamp diode q Flat package (16P2N ) M54687FP Speed control 2 PSC2 P-VCC Power supply APPLICATION Micro-cassette for phone-answering machine, AV equipment, and other general consumption appliances Outline 16P2N-A NC: no connection FUNCTION The M54687FP is an IC that can control the forward rotation, reverse rotation and speed of small DC brush motor. For the basic operation of this IC, output modes are selected, as shown in the logic truth table, by entering appropriate H/L level into the R, L and S inputs. Two resistances are put between the output pin and the PSC pin and the resistance ratios are appropriately adjusted to perform the speed control. In addition to the above, speed control can be done by varying the voltage at VR pin, in the high speed mod...