Datasheet > DRV777

DRV777

更新时间： 2024-02-10 04:34:28

品牌	Logo	应用领域
德州仪器 - TI		驱动器继电器电机
页数	文件大小	规格书
17页	905K
描述
7- bit Integrated Motor and Relay Driver

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DRV777 数据手册

DRV777

www.ti.com

SLRS062 –DECEMBER 2012

7- bit Integrated Motor and Relay Driver

Check for Samples: DRV777

FEATURES

Functional Diagram

•

Supports up to 20V Output Pull-up Voltage

–40°C to 125°C Operating Temperature Range

OUT1

IN1

IN2

15 OUT2

Supports Wide Range of Stepper Motors, DC

Motors, Relays, and Inductive Coils

OUT3

IN3

IN4

OUT4

OUT5

•

Low Output VOL of 0.4V (Typical) With

IN5

IN6

–

140mA Current Sink per Channel at 5.0V

Logic Input⁽¹⁾

OUT6

OUT7

COM

IN7

–

1A Current Output when all 7 Channels

Tied in Parallel⁽¹⁾

GND

DRV777 TSSOP/SOIC

•

Compatible to 1.8V, 3.3V and 5.0V Micro-

controllers and Logic Interface

DESCRIPTION

DRV777 motor driver features

Internal Free-wheeling Diodes for Inductive

Kick-back Protection

low output

impedance drivers that minimize on-chip power

dissipation. DRV777 supports 1.8V to 5V CMOS logic

input interface thus making it compatible to a wide

range of micro-controllers and other logic interfaces.

DRV777 features an improved input interface that

minimizes the input DC current drawn from the

external drivers. Device also features an input RC

snubber that greatly improves its performance in

noisy operating conditions. All channel inputs feature

an internal input pull-down resistor thus allowing input

logic to be tri-stated. DRV777 also supports other

logic input levels, e.g. TTL and 1.8V; see typical

characteristics section for details.

Input Pull-down Resistors Allows Tri-stating

the Input Driver

Input RC-Snubber to Eliminate Spurious

Operation in Noisy Environment

•

Low Input and Output Leakage Currents

Easy to use Parallel Interface

ESD Protection Exceeds JESD 22

–

2kV HBM, 500V CDM

•

(1)

Available in 16-pin SOIC and TSSOP Packages

Total current sink may be limited by the internal junction

temperature, absolute maximum current levels etc - refer to

the Electrical Specifications section for details.

As shown in the Functional Diagram, each output of

the DRV777 features an internal free-wheeling diode

connected in a common-cathode configuration at the

COM pin.

APPLICATIONS

•

Unipolar Stepper Motor Drivers

Relay and Inductive Load Drivers

Solenoid Drivers

Device provides flexibility of increasing current sink

capability through combining several adjacent

channels in parallel. Under typical conditions DRV777

can support up to 1.0A of load current when all 7-

channels are connected in parallel. DRV777 is

available in 16-pin SOIC and 16-pin TSSOP

packages.

Lamp and LED Displays

Logic Level Shifter

General Low-Side Switch Applications

Table 1. DRV777 Function Table⁽¹⁾

INPUT (IN1 – IN7)

OUTPUT (OUT1–OUT7)

H⁺⁽²⁾

(1) L = Low-level (GND); H= High-level; Z= High-impedance;

(2) H⁺= Pull-up-level

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...17

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与DRV777相关器件

型号	品牌	获取价格	描述	数据表
DRV777DR	TI	获取价格	7- bit Integrated Motor and Relay Driver
DRV777PWR	TI	获取价格	7- bit Integrated Motor and Relay Driver
DRV8106HQRHBRQ1	TI	获取价格	具有离线诊断功能和直列式电流感应放大器的汽车类 40V 半桥智能栅极驱动器。 \| RHB
DRV8106-Q1	TI	获取价格	具有离线诊断功能和直列式电流感应放大器的汽车类 40V 半桥智能栅极驱动器。
DRV8106SQRHBRQ1	TI	获取价格	具有离线诊断功能和直列式电流感应放大器的汽车类 40V 半桥智能栅极驱动器。 \| RHB
DRV8143HQRXYRQ1	TI	获取价格	支持内部 CSA 和诊断的汽车级 40mΩ 半桥电机驱动器 \| RXY \| 14 \| -4
DRV8143PQDGQRQ1	TI	获取价格	支持内部 CSA 和诊断的汽车级 40mΩ 半桥电机驱动器 \| DGQ \| 28 \| -4
DRV8143-Q1	TI	获取价格	支持内部 CSA 和诊断的汽车级 40mΩ 半桥电机驱动器
DRV8143SQRXYRQ1	TI	获取价格	支持内部 CSA 和诊断的汽车级 40mΩ 半桥电机驱动器 \| RXY \| 14 \| -4
DRV8144AHQRYJRQ1	TI	获取价格	具有集成电流检测和反馈功能的汽车类 40V、30A 半桥驱动器 \| RYJ \| 16 \|

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