Datasheet > DRV8231DDAR

DRV8231DDAR

更新时间： 2024-01-19 22:52:26

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
39页	3536K
描述
DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation

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DRV8231DDAR 数据手册

DRV8231

SLVSFZ7 – NOVEMBER 2021

DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation

1 Features

3 Description

•

N-channel H-bridge brushed DC motor driver

4.5-V to 33-V operating supply voltage range

Pin-to-pin, R_DS(on), voltage, and current sense/

regulation variants (external shunt resistor and

integrated current mirror)

The DRV8231 device is an integrated motor driver

with N-channel H-bridge, charge pump, current

regulation, and protection circuitry. The charge

pump improves efficiency by supporting N-channel

MOSFET half bridges and 100% duty cycle driving.

– DRV8870: 6.5-V to 45-V, 565-mΩ, shunt

– DRV8251: 4.5-V to 48-V, 450-mΩ, shunt

– DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror

– DRV8231: 4.5-V to 33-V, 600-mΩ, shunt

– DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror

High output current capability: 3.7-A Peak

PWM control interface

Supports 1.8-V, 3.3-V, and 5-V logic inputs

Integrated current regulation

Low-power sleep mode

– <1-µA at V_VM= 24-V, T_J= 25°C

Small package and footprint

– 8-Pin WSON with PowerPAD^™, 2.0 × 2.0 mm

– 8-Pin HSOP with PowerPAD^™, 4.9 × 6.0 mm

Integrated protection features

– VM undervoltage lockout (UVLO)

– Auto-retry overcurrent protection (OCP)

– Thermal shutdown (TSD)

The DRV8231 implements a current regulation feature

by comparing the analog input VREF and the voltage

across a current-sense shunt resistor on the ISEN

pin. The ability to limit current can significantly

reduce large currents during motor startup and stall

conditions.

•

A low-power sleep mode achieves ultra-low quiescent

current draw by shutting down most of the internal

circuitry. Internal protection features include supply

undervoltage lockout, output overcurrent, and device

overtemperature.

•

The DRV8231 is part of a family of devices which

come in pin-to-pin, scalable R_DS(on)and supply

voltage options to support various loads and supply

rails with minimal design changes. See Section 5 for

information on the devices in this family. View the full

portfolio of brushed motor drivers on ti.com.

Device Information ⁽¹⁾

2 Applications

PART NUMBER

PACKAGE

HSOP (8)

WSON (8)

BODY SIZE (NOM)

4.90 mm × 6.00 mm

2.00 mm × 2.00 mm

•

Printers

Vacuum robot

Washer and dryer

Coffee machine

POS printer

Electricity meter

ATMs (Automated Teller Machines)

Ventilators

Surgical equipment

Electronic hospital bed and bed control

Fitness machine

DRV8231

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic

4.5 to 33 V

DRV8231

IN1

H-Bridge

Motor Driver

IN2

Fault

Protec on

VREF

Current

Regula on

RSENSE

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...39

中文翻译

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与DRV8231DDAR相关器件

型号	品牌	获取价格	描述	数据表
DRV8231DSGR	TI	获取价格	DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation
DRV8234	TI	获取价格	具有纹波计数、无传感器失速检测和 I2C 接口的 38V、2A H 桥电机驱动器
DRV8234RTER	TI	获取价格	具有纹波计数、无传感器失速检测和 I²C 接口的 38V、2A H 桥电机驱动器 \| RT
DRV8235	TI	获取价格	具有集成速度调节和失速检测功能的 38V 3.7A 有刷直流电机驱动器
DRV8235RTER	TI	获取价格	具有集成速度调节和失速检测功能的 38V 3.7A 有刷直流电机驱动器 \|
DRV8242-Q1	TI	获取价格	具有集成电流检测和反馈功能的汽车类 40V 6A H 桥驱动器
DRV8242SQRHLRQ1	TI	获取价格	具有集成电流检测和反馈功能的汽车类 40V 6A H 桥驱动器 \| RHL \| 20 \|
DRV8243H-Q1	TI	获取价格	DRV8245-Q1 Automotive H-Bridge Driver with Integrated Current Sense and Diagnostics
DRV8243HQDGQRQ1	TI	获取价格	DRV8243-Q1 Automotive H-Bridge Driver with Integrated Current Sense and Diagnostics
DRV8243HQRXYRQ1	TI	获取价格	DRV8243-Q1 Automotive H-Bridge Driver with Integrated Current Sense and Diagnostics

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