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SAA1042

Motorola Inc
Part Number SAA1042
Manufacturer Motorola Inc
Description STEPPER MOTOR DRIVER
Published May 18, 2005
Detailed Description Order this document by SAA1042/D SAA1042 Stepper Motor Driver The SAA1042 drives a two–phase stepper motor in the bipol...
Datasheet PDF File SAA1042 PDF File

SAA1042
SAA1042

Overview
Order this document by SAA1042/D SAA1042 Stepper Motor Driver The SAA1042 drives a two–phase stepper motor in the bipolar mode.
The device contains three input stages, a logic section and two output stages.
The IC is contained in a 16 pin dual–in–line heat tab plastic package for improved heatsinking capability.
The center four ground pins are connected to the copper alloy heat tab and improve thermal conduction from the die to the circuit board.
• Drive Stages Designed for Motors: 6.
0 V and 12 V: SAA1042V STEPPER MOTOR DRIVER SEMICONDUCTOR TECHNICAL DATA • • • • • • • 500 mA/Coil Drive Capability Built–In Clamp Diodes for Overvoltage Suppression Wide Logic Supply Voltage Range Accepts Commands for CW/CCW and Half/Full Step Operation Inputs Compatible with Popular Logic Families: MOS, TTL, DTL Set Input Defined Output State Drive Stage Bias Adaptable to Motor Power Dissipation for Optimum Efficiency 16 1 V SUFFIX PLASTIC PACKAGE CASE 648C PIN CONNECTIONS L2 1 2 3 4 16 L3 15 VM 14 L4 13 Gnd 12 11 VCC 10 CW/CCW 9 (Top View) Gnd Figure 1.
Representative Block Diagram VD VZ L1 Gnd 5 3 7 Clock Driver 1 10 CW/CCW Logic 16 L3 8 Full/ Half Step Driver 14 9 Gnd RB Set A © Motorola, Inc.
1996 Rev 2 VCC 11 VM 15 2 VD L1 M L2 Set/ Driver Bias Clock Full/Half Step 6 7 8 L4 ORDERING INFORMATION 6 Driver Bias Device SAA1042V Operating Temperature Range TJ = – 30° to +125°C Package Plastic DIP MOTOROLA ANALOG IC DEVICE DATA 1 SAA1042 MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.
) Rating Clamping Voltage (Pins 1, 3, 14, 16) Over Voltage (VOV = Vclamp – VM) Supply Voltage Switching or Motor Current/Coil Input Voltage (Pins 7, 8, 10) Symbol Vclamp VOV VCC IM Vin clock Vin Full/Half Vin CW/CCW PD θJA θJC TJ Tstg SAA1042V 20 6.
0 20 500 VCC Unit V V V mA V Power Dissipation (Note 1) Thermal Resistance, Junction–to–Air Thermal Resistance, Junction–to–Case Operating Junction Temperature Range Storage Temperature Range NOTE: 2.
0 80 15 –30 to +125 –65 to +150 W ...


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