DRV8848
- Dual H-Bridge Motor Driver
- Single/Dual Brushed DC
- Stepper
- 4 to 18V Operating Supply Voltage Range
-
Low ON-resistance: HS + LS = 900mΩ (Typical, 25°C)
- PWM Control Interface
- Optional Current Regulation With 20µs Fixed Off-Time
- 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
- Low-Current 3µA Sleep Mode
- Thermally-Enhanced Surface Mount Package
- Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT)
The DRV8848 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 with controller circuits.
The output block of each H-bridge driver consists of N-channel and P-channel power MOSFETs configured as full H-bridges to drive the motor windings. Each H-bridge includes circuitry to regulate the winding current using a fixed off-time chopping scheme. The DRV8848 is capable of driving up to 2A of current from each output or 4A of current in parallel mode (with proper heat sinking, at 12V and TA = 25°C).
A low-power sleep mode is provided, which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.
Internal protection functions are provided for UVLO, OCP, short-circuit protection and overtemperature. Fault conditions are indicated by a nFAULT pin.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | DRV8848 Dual H-Bridge Motor Driver datasheet (Rev. B) | PDF | HTML | 2024年 4月 24日 |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021年 10月 14日 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021年 1月 19日 | |
| Technical article | Using smart relay drivers for smart meters, part 2 | PDF | HTML | 2018年 12月 10日 | |
| Application brief | Small Motors in Large Appliances | 2018年 7月 20日 | ||
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| Application note | Using a Motor Driver DRV8848 for Low-Power Isolated Full-Bridge DC-DC Conversion | 2017年 11月 13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)。
BOOST-DRV8848 — 採用 DRV8848 的雙有刷 DC 馬達 BoosterPack
BOOST-DRV8848 是基於 DRV8848 雙全橋馬達驅動器的 4-18V 有刷 DC 馬達驅動級。此設計包含驅動單刷或雙刷 DC 馬達所需的一切,並支援並聯模式以滿足更高的電流需求。BOOST-DRV8848 最適合想進一步了解有刷 DC 馬達驅動級設計的使用者。此套件的設計與所有 TI LaunchPad 皆相容,且遵循 LaunchPad 針腳配置標準,並為採用 MSP430G2553 的 MSP-EXP430G2 LaunchPad 提供主要軟體/韌體支援。
DRV8848EVM — DRV8848EVM 評估模組
DRV8848EVM(評估模組)做為簡單易用的評估套件,用於展示 TI 的有刷馬達驅動器 DRV8848。MSP430F2617 用於控制馬達速度和電流位準。 該 EVM 採用高性能、電源效率且符合成本效益的平台,可加快開發速度並縮短上市時間。
TIDA-00297 — 冰箱阻尼器與風扇馬達控制解決方案
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 16 | Ultra Librarian |
訂購與品質
- 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
- 認證摘要
- 進行中的可靠性監測
- 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。