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Product Overview
The DRV8805DW from Texas Instruments is a dual H-bridge motor driver IC designed for bipolar stepper motors or two DC motors. It integrates N-channel power MOSFETs with a low on-resistance of 0.55Ω per FET, enabling efficient operation up to 2.5A peak current per bridge and 36V supply voltage. The device features a simple STEP/DIR interface, fixed-frequency current regulation, and built-in protection including overcurrent, overtemperature, and undervoltage lockout. Housed in a 20-pin SOIC package, it is ideal for space-constrained applications requiring precise motor control.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VM) |
8.2V to 36V |
| Output Current (per bridge) |
2.5A peak, 1.5A RMS |
| On-Resistance (HS+LS) |
0.55Ω typical |
| Control Interface |
STEP/DIR |
| Microstepping |
Full, Half, Quarter, Eighth |
| Current Regulation |
Fixed off-time PWM |
| Protection Features |
OCP, OTP, UVLO, nFAULT |
| Package |
20-SOIC (DW) |
| Operating Temperature |
-40°C to 85°C |
Key Features
- Dual H-bridge for bipolar stepper or dual DC motors
- Low RDS(on) for high efficiency
- Simple STEP/DIR interface with up to 1/8 microstepping
- Fixed-frequency current regulation reduces noise
- Integrated protection: overcurrent, overtemperature, UVLO
- Low sleep current (<10μA)
- Small 20-SOIC package saves board space
Target Applications
- 5G base station antenna tilt control
- Automotive dashboard stepper motors
- Industrial valve actuators
- Office automation printers and scanners
- Medical pump and syringe drivers
- Robotics and CNC machinery
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
DRV8805DW. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
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
DRV8805DW 是德州儀器 (TI) 推出的雙 H 橋馬達驅動器 IC,專為雙極步進馬達或兩個直流馬達設計。它集成了 N 溝道功率 MOSFET,每個 FET 的導通電阻低至 0.55Ω,可在高達 2.5A 峰值電流和 36V 電源電壓下高效運行。該器件採用簡單的 STEP/DIR 接口、固定頻率電流調節以及內置保護功能(包括過流、過熱和欠壓鎖定)。採用 20 引腳 SOIC 封裝,非常適合需要精確馬達控制的空間受限應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VM) |
8.2V 至 36V |
| 輸出電流 (每橋) |
2.5A 峰值, 1.5A RMS |
| 導通電阻 (HS+LS) |
典型 0.55Ω |
| 控制接口 |
STEP/DIR |
| 微步進 |
全步、半步、1/4、1/8 |
| 電流調節 |
固定關斷時間 PWM |
| 保護功能 |
OCP, OTP, UVLO, nFAULT |
| 封裝 |
20-SOIC (DW) |
| 工作溫度 |
-40°C 至 85°C |
核心特性
- 雙 H 橋,支持雙極步進或雙直流馬達
- 低導通電阻,高效率
- 簡單的 STEP/DIR 接口,支持最高 1/8 微步進
- 固定頻率電流調節,降低噪聲
- 集成保護:過流、過熱、欠壓鎖定
- 低睡眠電流 (<10μA)
- 小型 20-SOIC 封裝,節省電路板空間
典型應用場景
- 5G 基站天線傾角控制
- 汽車儀表盤步進馬達
- 工業閥門執行器
- 辦公自動化打印機和掃描儀
- 醫療泵和注射器驅動
- 機器人和 CNC 機械
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 DRV8805DW 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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