MM1646XH

MITSUMI 5ch Motor Driver MM1646XH 5ch Motor Driver Monolithic IC MM1646XH Outline This IC is a motor driver IC for DVD players with 5ch built in (for spindle, sled, focus, tracking, loading). Features 1. 5ch motor driver in one package. 2. Small package ensures heat loss of 2.2W. 3. Built-in short brake (spindle). 4. Built-in thermal shutdown function. Package HSOP-28D Applications 1. for DVD players 2. for DVD minicomponent Pin Assignment 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PS VBIAS VIN1 VIN2+ VIN2VO2 PreVCC1 PowerVCC1 PowerVCC2 PowerGND1 OUT2OUT2+ OUT1OUT1+ 15 16 17 18 19 20 21 22 23 24 25 26 27 28 OUT4+ OUT4OUT3+ OUT3OUTL+ OUTLPowerGND2 PreVCC2 VIN3 VIN4 PreGND VINLOVINLO+ SB 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 HSOP-28D (TOP VIEW) http://www.Datasheet4U.com MITSUMI 5ch Motor Driver MM1646XH Block Diagram Spindle Motor Short Brake 1 Power Save Control circuit 7.2k 7.8k 7.2k 3 7.8k 4 Pre GND 25 26 28 2 27 5 24 6 Pre VCC1 10k 10k Pre VCC2 23 7 22 35k 10k 8 Power VCC1 25k 9 Power VCC2 Power GND1 TSD 35k 10k Power GND2 15k 20 21 10 19 11 X2 12 X2 Sled Driver Level Shift Spindle Driver Level Shift X2 18 X2 17 13 X2 14 X2 Actuator Focus Level Shift Actuator Tracking Level Shift X2 16 X2 15 TSD: Thermal shutdown MITSUMI 5ch Motor Driver MM1646XH Pin Description Pin no. 1 Pin name PS Function Input for power save control 1 Internal equivalent circuit diagram 39k 39k 2 3 23 24 VBIAS VIN1 V...