支援軟體
DRV8844
- Quad 1/2-H-Bridge DC Motor Driver
- Can Drive Four Solenoids, Two DC Motors, One Stepper Motor, or Other Loads
- Full Individual Half Bridge Control
- Low MOSFET On-Resistance
- 2.5-A Maximum Drive Current at 24 V, 25°C
- Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30 V)
- Built-In 3.3-V, 10-mA LDO Regulator
- Industry Standard IN/IN Digital Control Interface
- 8-V to 60-V Operating Supply Voltage Range
- Outputs Can Be Connected in Parallel
- Thermally Enhanced Surface Mount Package
All trademarks are the property of their respective owners.
The DRV8844 provides four individually controllable 1/2-H-bridge drivers. It can be used to drive two DC motors, one stepper motor, four solenoids, or other loads. The output driver channel for each channel consists of N-channel power MOSFET’s configured in a 1/2-H-bridge configuration.
The DRV8844 can supply up to 2.5-A peak or 1.75-A RMS output current per channel (with proper PCB heatsinking at 24 V and 25°C) per H-bridge.
Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin.
Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.
The DRV8844 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).
For all available packages, see the orderable addendum at the end of the data sheet.技術文件
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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8844 Quad ½-H-Bridge Driver IC datasheet (Rev. D) | PDF | HTML | 2016年 5月 4日 |
| Application note | How to Drive Unipolar Stepper Motor with the DRV8xxx | PDF | HTML | 2021年 12月 3日 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021年 10月 14日 | |
| Application note | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021年 7月 22日 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021年 1月 19日 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | 2015年 7月 6日 | ||
| EVM User's guide | DRV8844EVM Users Guide | 2012年 8月 1日 | ||
| Application note | Understanding Motor Driver Current Ratings | 2012年 2月 6日 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004年 5月 12日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
開發板
DRV8844EVM — DRV8844 評估模組
The DRV8844 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8844 motor driver from Texas Instruments.
使用指南: PDF
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HTSSOP (PWP) | 28 | 檢視選項 |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。