支援軟體
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
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檢視所有 9 | 類型 | 標題 | 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 | |
| EVM User's guide | DRV8848 EVM GUI (Rev. C) | 2019年 9月 10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)。
開發板
BOOST-DRV8848 — 採用 DRV8848 的雙有刷 DC 馬達 BoosterPack
The BOOST-DRV8848 is 4-18V brushed DC motor drive stage based on the DRV8848 dual H-bridge motor driver. The design contains everything needed to drive single or dual brush DC motors, and supports a parallel mode for higher current needs. The BOOST-DRV8848 is ideal for those wishing to learn more (...)
使用指南: PDF
開發板
DRV8848EVM — DRV8848EVM 評估模組
The DRV8848EVM (evaluation module) serves as a user-friendly evaluation kit to demonstrate TI's brushed motor driver DRV8848. A MSP430F2617 is used to control the speed of the motor and current levels. The EVM is a high-performance, power-efficient, cost-effective platform that speeds (...)
使用指南: PDF
參考設計
TIDA-00297 — 冰箱阻尼器和風扇馬達控制解決方案
Refrigerators often use a damper to control airflow and a fan to provide circulation. While discrete solutions have been used for years, this reference design uses integrated motor drivers that provide easy control, high performance and full protection. DRV8848 drives the stepper motor (...)
| 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
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
- 認證摘要
- 進行中持續性的可靠性監測
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。