DRV8818 Texas instruments

DRV8818

Уточнить цену

DRV8818

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor. The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The mode pins allow for configuration of the motor in full-step, half-step, quarter-step, or eighth-step modes. Decay mode and PWM off time are programmable. Internal shutdown functions are provided for over current protection, short circuit protection, under-voltage lockout and overtemperature. The DRV8818 is packaged in a 28-pin HTSSOP package with PowerPAD.

Pulse Width Modulation (PWM) Microstepping Motor Driver
- Built-In Microstepping Indexer
- Up to 8 Microsteps/Step
- Step and Direction Control
- Programmable Mixed Decay, Blanking, and Off Time
Up to 2.5-A Current Per Winding
Low 0.37-Ω (HS + LS) MOSFET R_DS(ON) (25°C)
8-V to 35-V Operating Supply Voltage Range
Pin to Pin Upgrade for DRV8811 With Lower R_DS(ON)
Thermally-Enhanced Surface Mount Package
Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)

Number of full bridges	2
Vs (min) (V)	8
Vs ABS (max) (V)	35
Full-scale current (A)	2.5
Peak output current (A)	3.5
RDS(ON) (HS + LS) (mΩ)	370
Sleep current (µA)	3
Control mode	STEP/DIR
Control interface	Hardware (GPIO)
Microstepping levels	8
Features	Current Regulation
Rating	Catalog
Operating temperature range (°C)	-40 to 85