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Product Overview
The DRV8421ADFUR from Texas Instruments is a dual-bridge stepper motor driver IC designed for precise motion control in industrial and automotive applications. It integrates two N-channel power MOSFET H-bridges, capable of driving up to 2.5A peak current per bridge with a supply voltage range from 4.5V to 48V. The device features advanced current regulation, microstepping, and protection functions, making it ideal for bipolar stepper motors or two DC motors.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VM) |
4.5V – 48V |
| Output Current (per bridge) |
2.5A peak, 1.5A RMS |
| RDS(on) (HS + LS) |
0.5Ω typical |
| Microstepping Levels |
1/8, 1/4, 1/2, full step |
| Control Interface |
STEP/DIR |
| Package |
10-SSOP (3.0mm × 4.9mm) |
| Operating Temperature |
-40°C to 125°C |
| Protection Features |
OCP, OVP, TSD, UVLO |
Key Features
- Dual H-bridge with integrated MOSFETs
- Low RDS(on) for high efficiency
- Microstepping for smooth motion
- Automatic current decay mode selection
- Protection: overcurrent, overtemperature, undervoltage lockout
- Small 10-SSOP package for space-constrained designs
Target Applications
- 5G base station antenna tilt control
- Automotive dashboard stepper motors
- Industrial valve actuators
- Medical pump systems
- Office automation printers
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
DRV8421ADFUR. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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with full quality assurance and traceability.
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be authentic with strict quality control.
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environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
DRV8421ADFUR 是德州儀器推出的雙橋步進電機驅動器 IC,專為工業和汽車應用中的精確運動控制而設計。它集成了兩個 N 溝道功率 MOSFET H 橋,每個橋可驅動高達 2.5A 峰值電流,電源電壓範圍為 4.5V 至 48V。該器件具有先進的電流調節、微步進和保護功能,非常適合雙極步進電機或兩個直流電機。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VM) |
4.5V – 48V |
| 輸出電流 (每橋) |
2.5A 峰值, 1.5A RMS |
| 導通電阻 (HS + LS) |
典型 0.5Ω |
| 微步進級別 |
1/8, 1/4, 1/2, 全步 |
| 控制接口 |
STEP/DIR |
| 封裝 |
10-SSOP (3.0mm × 4.9mm) |
| 工作溫度 |
-40°C 至 125°C |
| 保護功能 |
過流、過壓、過熱、欠壓鎖定 |
核心特性
- 集成 MOSFET 的雙 H 橋
- 低導通電阻,高效率
- 微步進實現平穩運動
- 自動電流衰減模式選擇
- 保護:過流、過熱、欠壓鎖定
- 小型 10-SSOP 封裝,適合空間受限設計
典型應用場景
- 5G 基站天線傾角控制
- 汽車儀表盤步進電機
- 工業閥門執行器
- 醫療泵系統
- 辦公自動化打印機
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