Datasheet Archives - Page 9 of 6973

Part Number: DRV8711

Function: STEPPER MOTOR CONTROLLER IC

Package: PowerPAD (HTSSOP) 38 Pin Type

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DRV8711 datasheet pdf

Description

The DRV8711 is a stepper motor controller that uses external N-channel MOSFETs to drive a bipolar stepper motor or two brushed DC motors. A microstepping indexer is integrated, which is capable of step modes from full step to 1/256-step.

An ultra-smooth motion profile can be achieved using adaptive blanking time and various current decay modes, including an auto-mixed decay mode. Motor stall is reported with an optional back-EMF output.

A simple step/direction or PWM interface allows easy interfacing to controller circuits. A SPI serial interface is used to program the device operation. Output current (torque), step mode, decay mode,and stall detection functio ns are all programmable via a SPI serial interface.

Features

Supports full-step to 1/256 microstepping resolution
External N-channel MOSFET gate driver architecture for high power scalability
Programmable PWM current regulation with internal torque DAC
Multiple decay modes including slow, fast, and automatic mixed decay
Adaptive blanking time for improved current regulation accuracy
SPI interface for full configuration control
Step/Direction and PWM input control options
Integrated stall detection with optional back-EMF (BEMF) output

Pinout

DRV8711 datasheet

Design Notes

Requires careful MOSFET selection (low R_DS(on), fast switching) for efficiency and thermal performance
Current sensing resistors determine peak motor current; layout must minimize noise and parasitics
Proper configuration of decay mode is critical for minimizing current ripple and acoustic noise
SPI initialization sequence must be completed before enabling motor outputs
Use proper gate drive layout and bootstrap/charge pump capacitors for stable operation

How to Choose This Part

Select when high current or high voltage stepper control is required using external MOSFETs
Ideal for applications needing fine microstepping (up to 1/256)
Suitable when SPI configurability and advanced tuning are required
Prefer over integrated drivers when thermal dissipation or scalability is critical

Applications

Stepper motor control in industrial equipment
Robotics and automation systems
Precision positioning and motion control
Medical instrumentation

Alternative / Equivalent Products

DRV8701 (brushed DC motor driver variant)
DRV8825 (integrated stepper driver)
TMC5160 (Trinamic high-end stepper driver)
A4988 (basic integrated stepper driver)

Other data sheets are available within the file: DRV8711DCP, DRV8711DCPR

DRV8711 Datasheet PDF Download

Part Number: LQP03TN0N6B02

Function: HF Chip Coils Cover Wide Inductance Range

Package: SMD 0603 Type

Manufacturer: Murata Manufacturing

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LQP03T datasheet

Description

The LQP03T series is an ultra-miniature RF chip inductor developed by Murata, utilizing thin-film technology to achieve exceptional high-frequency performance in a compact 0603 (0.6 × 0.3 mm) package. It is specifically engineered for RF circuits in space-constrained applications such as mobile devices, where high Q factor, tight tolerance, and stable characteristics are critical.

The past few years have seen the growing popularity of compact, slim mobile phones. High-end handset models, which are usually multi-functional, come with highquality picture LCD panels and camera modules. This has led manufacturers to scale down the sizes of the radio frequency (RF) block, and modules including power amplifier and voltage-controlled oscillator (VCO).

Consequently, the sizes of the high-frequency inductors used in mobile phones and modules also need to be scaled down to miniature levels. To meet this demand for ultra-small high-frequency inductors, Murata Manufacturing Co., Ltd. is mass-producing and supplying the LQP03T film-type 0603-sized (0.6 ×0.3mm) high-frequency chip