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See Technical Specifications

L297/1 +BOM

Stepper Motor Controller

Manufacturer:

ST
Mfr.Part #:

L297/1
Datasheet:

L297/1 Datasheet (PDF)
Part Life Cycle Code:

Active
Pin Count:

20
Reach Compliance Code:

compliant
ECCN Code:

EAR99
EDA/CAD Models:

Request Free CAD Models for L297/1

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L297/1 General Description

The L297 Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputer-controlled applications. The motor can be driven in half step, normal and wawe drive modes and on-chip 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.

Key Features

RESET INPUT & HOME OUTPUT
FEW EXTERNAL COMPONENTS
NORMAL/WAVE DRIVE
CLOCKWISE/ANTICLOCKWISE DIRECTION
HALF/FULL STEP MODES
PROGRAMMABLE LOAD CURRENT
ENABLE INPUT
SWITCHMODE LOAD CURRENT REGULATION

Specifications

Source Content uid	L297/1	Part Life Cycle Code	Active
Pin Count	20	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code	8542.39.00.01
Factory Lead Time	17 Weeks, 3 Days	Analog IC - Other Type	STEPPER MOTOR CONTROLLER
JESD-30 Code	R-PDIP-T20	JESD-609 Code	e3
Length	25.15 mm	Number of Functions	1
Number of Terminals	20	Operating Temperature-Max	150 °C
Operating Temperature-Min	-40 °C	Qualification Status	Not Qualified
Seated Height-Max	3.93 mm	Supply Current-Max (Isup)	80 mA
Supply Voltage-Max (Vsup)	7 V	Supply Voltage-Min (Vsup)	4.75 V
Supply Voltage-Nom (Vsup)	5 V	Surface Mount	NO
Technology	BIPOLAR	Temperature Grade	AUTOMOTIVE
Terminal Finish	MATTE TIN	Terminal Form	THROUGH-HOLE
Terminal Pitch	2.54 mm	Terminal Position	DUAL
Width	7.62 mm