DESCRIPTION. The L is an integrated monolithic circuit in a lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full- bridge. DESCRIPTION. The L/A/D Stepper Motor Controller IC gener- ates four phase drive signals for two phase bipolar and four phase unipolar step motors in . LD datasheet, LD circuit, LD data sheet: STMICROELECTRONICS – STEPPER MOTOR CONTROLLERS,alldatasheet, datasheet, Datasheet search .

Author: Shaktilrajas Moogushakar
Country: Iraq
Language: English (Spanish)
Genre: Marketing
Published (Last): 16 May 2012
Pages: 273
PDF File Size: 9.44 Mb
ePub File Size: 19.73 Mb
ISBN: 267-8-91313-650-9
Downloads: 14677
Price: Free* [*Free Regsitration Required]
Uploader: Arashizuru

The motor can be.

LD Datasheet, PDF – Alldatasheet

Storage and junction temperature. Output of the on-chip chopper oscillator.

If an external clock source. Open collector output that indicates when the L is in its initial. The transistor is open when this signal is active. Motor phase A dxtasheet signal for power stage.

Active low inhibit control for datahseet stage of A and B phases. When a bipolar bridge is used this vatasheet can be used to ensure. Motor phase B drive signal for power stage. Motor phase C drive signal for power stage. Active low inhibit control for drive stages of C and D phases. Same functions as INH1. Motor phase D drive signal for power stage. Control input that defines action of chopper. Input for load current sense voltage from power stages of phases. Reference voltage for chopper circuit.


A voltage applied to this pin. This terminal is connected to ground.

LD Datasheet(PDF) – STMicroelectronics

Physical direction of motor rotation also depends on connection. Synchronized internally therefore direction can be changed at any. An active low pulse on this input advances the motor. The step occurs on the rising edge of this signal. When high selects half step operation. One-phase-on full step mode. Two-phase-on full step mode is set by selecting FULL when the.

The home position is. An active low pulse on this input restores the. AB or CD is activated rather than interrupting the. The L is intended for use with a dual bridge. A common on-chip oscillator drives the dual chop. The principal functions are a translator, which gen. It supplies pulses at the chopper rate which set. When the current in. PWM chopper circuit which regulates the current in.

L297D Datasheet PDF

The translator generates three. V ref and the corresponding comparator resets its. These are normal two phases energised. The peak current for both. Two inhibit signals are also generated by. Ground noise problems in darasheet configurations. When the L is used.


This is done by connecting all the SYNC. When the phase lines. The L’s translator generates datashwet sequences. Clockwise rotation is indicate; for anticlockwise ro. The state sequences and output waveforms for. Supply voltage pin Quiescent supply current pin Enable input voltage pin o297d Enable input current pin Inhibit output voltage pins 5, 8.

Leakage current pin 3. Saturation voltage pin 3. Input reference voltage pin Reset to clock delay.

This circuit drives bipolar stepper motors with winding currents up to 2A. The diodes are fast 2A types. Information furnished is believed to be accurate and reliable. This publication supersedes and replaces all information previously supplied.