الصفحة الرئيسية > الدوائر المتكاملة لإدارة الطاقة (PMIC) > الدوائر المتكاملة لسائق البوابة > DRV8711DCPR

DRV8711DCPR

Stepper motor gate driver, SPI, 5-60V, HTSSOP-28

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جزء الشركة المصنعة ： جزء الشركة المصنعة

DRV8711DCPR

الحزمة ： الحزمة

HTSSOP-28 (9.70 x 4.40 x 1.20 mm, w/ EP)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

الدوائر المتكاملة لسائق البوابة, الدوائر المتكاملة الدوائر المتكاملة

توصيات أخرى قد تكون مهتماً بها.

SII9396SCNUC-BAR

IS43TR16256BL-125KBLI

الوصف

DRV8711DCPR Overview

The DRV8711DCPR is a stepper motor external MOSFET gate driver from Texas Instruments, operating from 8V to 52V, supporting up to 1/256 microstepping via SPI interface, with built-in overcurrent and thermal shutdown protection, in an HTSSOP-28 package.

Key Features

Supply voltage: 8V-52V
Gate drive current: 100mA source/200mA sink
SPI control interface
Microstep resolution: 1/256
Overcurrent protection
Thermal shutdown

مقدمة المنتج:DRV8711DCPR مقدمة المنتج

The DRV8711DCPR is a stepper motor gate driver from Texas Instruments in a 38-pin HTSSOP (9.7 x 4.4 mm) package, designed to drive external N-channel MOSFET H-bridges for high-current bipolar stepper motor applications. It supports motor supply voltages from 8 V to 52 V with up to 1/256 microstepping via an integrated indexer and 8-bit DAC per winding. The device features SPI control for all parameters, automatic mixed decay mode (smart tune), adjustable gate drive current (5-80 mA), stall detection via back-EMF, and extensive diagnostics including over-current, under-voltage, over-temperature, and open-load detection. A 5 V / 10 mA regulator output powers external logic.

مبدأ العمل:DRV8711DCPR مبدأ العمل

The DRV8711DCPR generates the gate drive signals for four external half-bridge N-channel MOSFET pairs (two per motor winding) to form two complete H-bridges. The internal step indexer divides each full step into up to 256 microsteps, generating sinusoidal current references for the A and B windings with a 90-degree phase offset. The current through each winding is sensed via an external sense resistor and compared with the DAC-generated reference by an internal PWM chopper controller. When the sensed current exceeds the reference, the chopper enters the decay phase. The smart tune decay mode automatically selects the optimal fast-to-slow decay ratio based on the operating point, eliminating the need for manual decay tuning across speed and load conditions. The SPI interface provides full register-level control over microstep resolution, current setpoint, gate drive strength, blanking time, and decay parameters. The stall detection algorithm monitors the back-EMF of the motor to detect a stalled rotor without external sensors. Gate drive current is programmable from 5 mA to 80 mA per output, optimizing switching speed versus EMI for different MOSFET selections. Internal protection circuits include over-current protection (OCP), over-temperature shutdown (OTS), and under-voltage lockout (UVLO).

وصف الدبوس:DRV8711DCPR تعريف الدبوس ووظائفه

دبوس	الاسم	الوصف
1	nSLEEP	Sleep mode input; active low, pull high for normal operation
2	STEP	Step input; rising edge advances one microstep
3	DIR	Direction input; sets rotation direction
4	SDI	SPI data input; serial data from MCU
5	SDO	SPI data output; serial data to MCU
6	SCLK	SPI clock input
7	nCS	SPI chip select; active low
8	nFAULT	Fault output; active low, open-drain fault indicator
9	AVDDD	Analog reference supply (3.3 V); decouple with 0.1 uF
10	دي في دي دي دي	Digital logic supply (3.3 V); decouple with 0.1 uF
11,16	AGND	Analog ground
12	VREF	External current reference input; overrides internal DAC if used
13	ISENSE1	Current sense input winding A; connect to sense resistor
14	ISENSE2	Current sense input winding B; connect to sense resistor
15	VM	Motor supply voltage (8 V to 52 V)
17-20	AH1,AL1,AH2,AL2	Gate drive outputs H-bridge A; high-side and low-side
21-24	ASH1,ASL1,ASH2,ASL2	Source sense connections H-bridge A
25-28	BH1,BL1,BH2,BL2	Gate drive outputs H-bridge B
29-32	BSH1,BSL1,BSH2,BSL2	Source sense connections H-bridge B

Application Scenarios:In which products and applications isDRV8711DCPR مستعمل

Industrial Stepper Drives: High-power stepper motor controllers for CNC and packaging machinery with external MOSFETs
Textile Equipment: Smooth 1/256 microstepping for vibration-free yarn handling and fabric production
Laboratory Automation: Precision linear stage positioning with stall detection eliminating end-switch wiring
3D Printers (Large Format): High-current NEMA 23/34 stepper driving with external MOSFETs
Semiconductor Equipment: Wafer handling robot joint actuators requiring high resolution and sensorless stall detection

Alternative Models:What chips are recommended as replacements for DRV8711DCPR

الطراز	الشركة المصنعة	VM	Microstep	الواجهة	الحزمة
DRV8711DCUR	تكساس إنسترومنتس	8-52 V	1/256	SPI	QFN-32
TMC5160	Trinamic	8-60 V	1/256	SPI/UART	QFN-48
L6480H	STMicroelectronics	8-85 V	1/128	SPI	HTSSOP-28
TMC6140	Trinamic	8-60 V	1/256	SPI	QFN-48
A5972	Allegro	8-50 V	1/16	Step/Dir	TSSOP-28

DRV8711DCPR is a 52V stepper motor gate driver from TI in 38-HTSSOP with 1/256 microstepping and SPI control. The DRV8711DCUR provides the same in 28-TSSOP with fewer features. DRV8711EVM is the evaluation module for quick prototyping. For integrated MOSFET solutions, DRV8825 provides 2.5A with 1/32 stepping. The TMC5130 from Trinamic offers 1/256 stepping with StallGuard sensorless homing. DRV8432 provides dual H-bridge for two DC motors or one stepper.