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Siehe Technische Spezifikationen

DRV8821DCAR +BOM

H-Bridge Motor Driver 48-Pin HTSSOP EP T/R

Hersteller:

Texas Instruments, Inc
Herstellerteil #:

DRV8821DCAR
Datenblatt:

DRV8821DCAR Datenblatt (PDF)
Motor Type - Stepper:

Bipolar
Function:

Driver - Fully Integrated, Control and Power Stage
Output Configuration:

Half Bridge (8)
Interface:

Logic
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an DRV8821DCAR

DRV8821DCAR Allgemeine Beschreibung

The DRV8821 provides a dual microstepping-capable stepper motor controller/driver solution for printers, scanners, and other office automation equipment applications.

Two independent stepper motor driver circuits include four H-bridge drivers and microstepping-capable indexer logic. Each of the motor driver blocks employ N-channel power MOSFETs configured as an H-bridge to drive the motor windings.

A simple step/direction interface allows easy interfacing to controller circuits. Pins allow configuration of the motor in full-step, half-step, quarter-step, or eighth step modes, and the selection of slow or mixed decay modes.

Internal shutdown functions are provided for over current protection, short-circuit protection, undervoltage lockout, and overtemperature.

The DRV8821 is packaged in a 48-pin HTSSOP package (Eco-friendly : RoHS & no Sb/Br).

Hauptmerkmale

Dual PWM Microstepping Motor Driver
- Built-In Microstepping Indexers
- Up to 1.5-A Current Per Winding
- Three-Bit Winding Current Control
  Allows up to Eight Current Levels
- Low MOSFET On-Resistance
- Selectable Slow or Mixed Decay Modes
8-V to 32-V Operating Supply Voltage Range
Internal Charge Pump for Gate Drive
Built-in 3.3-V Reference
Simple Step/Direction Interface
Fully Protected Against Undervoltage,
Overtemperature, and Overcurrent
Thermally-Enhanced Surface Mount Package

Spezifikationen

Category	Integrated Circuits (ICs)Power Management (PMIC)Motor Drivers, Controllers	Series	-
Motor Type - Stepper	Bipolar	Motor Type - AC, DC	-
Function	Driver - Fully Integrated, Control and Power Stage	Output Configuration	Half Bridge (8)
Interface	Logic	Technology	Power MOSFET
Step Resolution	1, 1/2, 1/4, 1/8	Applications	General Purpose
Current - Output	1.5A	Voltage - Supply	8V ~ 32V
Voltage - Load	8V ~ 32V	Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Base Product Number	DRV8821
Number of full bridges	4	Vs (min) (V)	8
Vs ABS (max) (V)	34	Full-scale current (A)	1.5
Peak output current (A)	1.5	RDS(ON) (HS + LS) (mΩ)	550
Sleep current (µA)	20	Control mode	STEP/DIR
Control interface	Hardware (GPIO)	Microstepping levels	8
Features	Current Regulation	Rating	Catalog
Operating temperature range (°C)	-40 to 85	feature-type	Motor Driver
feature-motor-type	Stepper Motor	feature-step-modes	1, 1/2, 1/4, 1/8
feature-process-technology		feature-control-interface	PWM
feature-output-configuration	H-Bridge	feature-output-voltage-v
feature-maximum-output-current-a	1.5	feature-minimum-operating-supply-voltage-v	8
feature-maximum-operating-supply-voltage-v	32	feature-maximum-operating-current-ma	8
feature-maximum-power-dissipation-mw		feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	48
feature-cecc-qualified	No	feature-esd-protection
feature-escc-qualified		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No

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