신규

DRV8421

활성

18V, 2A 듀얼 H 브리지 모터 드라이버

지금 주문

데이터 시트

document-pdfAcrobat DRV8421 18V 2A Dual H-Bridge Stepper Driver datasheet (영어) PDF | HTML

DRV8421

활성

데이터 시트

지금 주문

제품 상세 정보

Number of full bridges

2

Vs (min) (V)

4

Vs ABS (max) (V)

20

Peak output current (A)

2

RDS(ON) (HS + LS) (mΩ)

900

Control mode

PWM

Control interface

Hardware (GPIO)

Features

Low-Power Sleep Mode

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Number of full bridges

2

Vs (min) (V)

4

Vs ABS (max) (V)

20

Peak output current (A)

2

RDS(ON) (HS + LS) (mΩ)

900

Control mode

PWM

Control interface

Hardware (GPIO)

Features

Low-Power Sleep Mode

Rating

Catalog

Operating temperature range (°C)

-40 to 125

HVSSOP (DGQ)

10

14.7 mm² 3 x 4.9

Dual H-Bridge Motor Driver
- Single/Dual Brushed DC
- Stepper
- Solenoids
4 to 18V Operating Supply Voltage Range
Low ON-resistance: HS + LS = 900mΩ (Typical, 25°C)
High Output Current per H-Bridge
- 2A Maximum Driver Current at 12V and TA = 25°C
- Parallel Mode Available Capable of 4A Maximum Driver Current at 12V and TA = 25°C
Device versions:
- DRV8421A (4-wire input): Independent Half Bridge Control
- DRV8421B (2-wire input): Sleep Mode, Fault detect
Similar LV Stepper Drivers:
- DRV8410: 1.65 to 11V (800mΩ RDS(ON))
- DRV8411: 1.65 to 11V (400mΩ RDS(ON))
- DRV8411A: 1.65 to 11V (400mΩ RDS(ON))
PWM Control Interface
Low-Current 3µA Sleep Mode (2-wire input version only)
Thermally-Enhanced Surface Mount Package
Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT) (2-wire input version only)

Dual H-Bridge Motor Driver
- Single/Dual Brushed DC
- Stepper
- Solenoids
4 to 18V Operating Supply Voltage Range
Low ON-resistance: HS + LS = 900mΩ (Typical, 25°C)
High Output Current per H-Bridge
- 2A Maximum Driver Current at 12V and TA = 25°C
- Parallel Mode Available Capable of 4A Maximum Driver Current at 12V and TA = 25°C
Device versions:
- DRV8421A (4-wire input): Independent Half Bridge Control
- DRV8421B (2-wire input): Sleep Mode, Fault detect
Similar LV Stepper Drivers:
- DRV8410: 1.65 to 11V (800mΩ RDS(ON))
- DRV8411: 1.65 to 11V (400mΩ RDS(ON))
- DRV8411A: 1.65 to 11V (400mΩ RDS(ON))
PWM Control Interface
Low-Current 3µA Sleep Mode (2-wire input version only)
Thermally-Enhanced Surface Mount Package
Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT) (2-wire input version only)

The DRV8421 provides a dual H-bridge motor driver for home appliances and other mechatronic applications. The device can be used to drive one or two DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.

The output block of each H-bridge driver consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8421 is capable of driving a maximum current of 2A from each output or 4A in parallel mode (with proper heat sinking, at 12V and TA = 25°C).

The device contains two versions having a 4-wire input (DRV8421A) or a 2-wire input (DRV8421B). The 2-wire input version (DRV8421B) contains features like enable and fault detection, while the 4-wire input version (DRV8421A) can drive four half bridges based on signals to four input terminals. A low-power sleep mode is also provided for the 2-wire input version. It shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set by pulling the enable pin low.

Internal protection functions are provided for UVLO, OCP, short-circuit protection, and overtemperature. Fault conditions are indicated by a nFAULT pin in the DRV8421B, the 2-wire input device.

The DRV8421 provides a dual H-bridge motor driver for home appliances and other mechatronic applications. The device can be used to drive one or two DC motors, a bipolar stepper motor, or other loads. A simple PWM interface allows easy interfacing to controller circuits.

The output block of each H-bridge driver consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8421 is capable of driving a maximum current of 2A from each output or 4A in parallel mode (with proper heat sinking, at 12V and TA = 25°C).

The device contains two versions having a 4-wire input (DRV8421A) or a 2-wire input (DRV8421B). The 2-wire input version (DRV8421B) contains features like enable and fault detection, while the 4-wire input version (DRV8421A) can drive four half bridges based on signals to four input terminals. A low-power sleep mode is also provided for the 2-wire input version. It shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set by pulling the enable pin low.

Internal protection functions are provided for UVLO, OCP, short-circuit protection, and overtemperature. Fault conditions are indicated by a nFAULT pin in the DRV8421B, the 2-wire input device.

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	유형	직함		날짜
*	Data sheet	DRV8421 18V 2A Dual H-Bridge Stepper Driver datasheet	PDF \| HTML	2024/06/17

설계 및 개발

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평가 보드

DRV8421BEVM — DRV8421B 평가 모듈

DRV8421 평가 모듈(EVM)을 사용하면 DRV8421 장치를 쉽게 평가할 수 있습니다. EVM은 개봉 후 즉시 작동되고 즉시 모터 회전을 시작할 수 있게 프로그래밍되어 있습니다. 이 장치는 1~2개의 DC 모터, 양극 스테퍼 모터 또는 각 출력에서 최대 2A 또는 병렬 모드에서 4A의 기타 부하를 구동하는 데 사용할 수 있습니다.

사용 설명서: PDF | HTML

TI.com에서 구매 불가

거버(Gerber) 파일

DRV8421xEVM Hardware Files (Rev. A)

SLVC853A.ZIP (5670 KB)

다운로드

패키지	핀	CAD 기호, 풋프린트 및 3D 모델
HVSSOP (DGQ)	10	Ultra Librarian

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DRV8421

18V, 2A 듀얼 H 브리지 모터 드라이버

DRV8421

제품 상세 정보

기술 자료

설계 및 개발

DRV8421BEVM — DRV8421B 평가 모듈

DRV8421xEVM Hardware Files (Rev. A)

주문 및 품질

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

비디오 시리즈

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