Datasheet > DRV8256PRGER

DRV8256PRGER

更新时间： 2024-11-06 02:50:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
48页	3496K
描述
DRV8256E/P H-Bridge Motor Driver With Integrated Current Sense and Smart Tune Technology

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DRV8256PRGER 数据手册

DRV8256

_{SLOSE50 – DECE}D_MR_BEV_R8₂2₀5₂6₀

SLOSE50 – DECEMBER 2020

www.ti.com

DRV8256E/P H-Bridge Motor Driver With Integrated Current Sense and Smart Tune

Technology

1 Features

3 Description

•

N-channel H-bridge motor driver

– Drives one bidirectional brushed-DC motor

– Two unidirectional brushed DC motors

Integrated current sensing and regulation

4.5 V to 48 V Operating supply voltage range

Multiple control interface options

– PHASE/ENABLE (PH/EN)

The DRV8256E/P devices are single H-bridge motor

drivers for a wide variety of industrial applications.

The devices integrate an N-channel H-bridge, charge

pump regulator, current sensing and regulation, and

protection circuitry.

•

Integrated current sensing allows the driver to

regulate the motor inrush current during start up and

high load events. A current limit can be set with an

adjustable external voltage reference. The integrated

current sensing uses an internal current mirror

architecture, removing the need for a large power

shunt resistor, saving board area and reducing system

cost. A low-power sleep mode is provided to achieve

ultra-low quiescent current draw by shutting down

most of the internal circuitry.

– PWM (IN/IN)

•

Smart tune, fast and mixed decay options

Low R_DS(ON): 165 mΩ HS + LS at 24 V, 25°C

High Output Current Capability: 5-A peak

Limits inrush current of brushed-DC motors

Configurable Off-Time PWM Chopping

– 7, 16, 24 or 32 μs

•

Supports 1.8 V, 3.3 V, 5.0 V logic inputs

Low-current sleep mode (2 µA)

Spread spectrum clocking for low EMI

Protection features

– VM undervoltage lockout (UVLO)

– Charge pump undervoltage (CPUV)

– Overcurrent protection (OCP)

– Thermal shutdown (OTSD)

Internal protection features are provided for supply

undervoltage lockout (UVLO), charge pump

undervoltage (CPUV), output overcurrent (OCP), and

device overtemperature (TSD). Fault conditions are

indicated on nFAULT.

Device Information

PART NUMBER ⁽¹⁾

DRV8256EPWPR

DRV8256ERGER

DRV8256PPWPR

DRV8256PRGER

PACKAGE

HTSSOP (28)

VQFN (24)

BODY SIZE (NOM)

9.7mm x 4.4mm

4.0mm x 4.0mm

9.7mm x 4.4mm

4.0mm x 4.0mm

– Fault condition output (nFAULT)

HTSSOP (28)

VQFN (24)

2 Applications

•

Brushed DC Motors

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

the end of the data sheet.

Printers and scanners

ATMs and Textile Machines

Major home appliances

Vacuum, humanoid, and robotics

Smart Meters

DRV8256 Simplified Schematic

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.

Product Folder Links: DRV8256

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