Product Summary

The L297 is a Stepper Motor Controller IC. The L297 generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputercontrolled applications. The L297 can be driven in half step, normal and wawe drive modes and onchip PWM chopper circuits permit switch-mode control of the current in the windings. A feature of this device is that it requires only clock, direction and mode input signals. Since the phase are generated internally the burden on the microprocessor, and the programmer, is greatly reduced. Mounted in DIP20 and SO20 packages, the L297 can be used with monolithic bridge drives such as the L298N or L293E, or with discrete transistors and darlingtons.

Parametrics

L297 absolute maximum ratings: (1)Vs, Supply voltage: 10 V; (2)Vi, Input signals: 7 V; (3)Ptot, Total power dissipation (Tamb = 70℃): 1 W; (4)Tstg, Tj, Storage and junction temperature: -40 to + 150℃.

Features

L297 features: (1)normal/wave drive; (2)half/full step modes; (3)clockwise/anticlockwise direction; (4)switchmode load current regulation; (5)programmable load current; (6)few external components; (7)reset input & home output; (8)enable input.

Diagrams

L297 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
L297
L297
Other

Data Sheet
Negotiable 
L297/1
L297/1
STMicroelectronics
Motor / Motion / Ignition Controllers & Drivers Stepper Motor
Data Sheet
0-1: $5.71
1-10: $4.77
10-100: $4.30
100-250: $3.95
L297D
L297D
STMicroelectronics
Motor / Motion / Ignition Controllers & Drivers Stepper Motor
Data Sheet
0-1: $3.99
1-10: $3.87
10-100: $3.52
100-250: $3.47
L297D013TR
L297D013TR
STMicroelectronics
Motor / Motion / Ignition Controllers & Drivers Stepper Motor
Data Sheet
0-1: $5.32
1-10: $4.35
10-100: $3.94
100-250: $3.61