DRV8256
- N-channel H-bridge motor driver
- Drives one bidirectional brushed-DC motor
- Two unidirectional brushed DC motors
- Integrated current sensing and regulation
- 4.5 V to 48 V Operating supply voltage range
- Multiple control interface options
- PHASE/ENABLE (PH/EN)
- PWM (IN/IN)
- Smart tune, fast and mixed decay options
- Low RDS(ON): 165 mΩ HS + LS at 24 V, 25°C
- High Output Current Capability: 6.4-A peak
- Limits inrush current of brushed-DC motors
- Configurable Off-Time PWM Chopping
- 7, 16, 24 or 32 µs
- Supports 1.8 V, 3.3 V, 5.0 V logic inputs
- Low-current sleep mode (2 µA)
- Spread spectrum clocking for low EMI
- Protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
The DRV8256E/P devices are single H-bridge motor drivers for a wide variety of industrial applications. The devices integrate an N-channel H-bridge, charge pump regulator, current sensing and regulation, and protection circuitry.
Integrated current sensing allows the driver to regulate the motor inrush current during start up and high load events. A current limit can be set with an adjustable external voltage reference. The integrated current sensing uses an internal current mirror architecture, removing the need for a large power shunt resistor, saving board area and reducing system cost. A low-power sleep mode is provided to achieve ultra-low quiescent current draw by shutting down most of the internal circuitry.
Internal protection features are provided for supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), output overcurrent (OCP), and device overtemperature (TSD). Fault conditions are indicated on nFAULT.
您可能會感興趣的類似產品
功能相同，但引腳輸出與所比較的裝置不同
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8256E/P H-Bridge Motor Driver With Integrated Current Sense and Smart Tune Technology datasheet (Rev. A) | PDF | HTML | 2021年 4月 12日 |
| Application brief | Advantages of Integrated Current Sensing (Rev. B) | PDF | HTML | 2022年 6月 20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)。
DRV8256EEVM — DRV8256 相/啓用控制介面全橋馬達驅動器評估模組
DRV8256E 評估模組 (EVM) 可輕鬆評估 DRV8256E 裝置。
DRV8932E 整合兩個 N 通道功率 MOSFET 全橋及整合式電流感測與穩壓電路。DRV8256E 裝置透過單一電源供應器運作，並支援 4.5 至 48V 的廣泛輸入供應範圍。簡易的 PHASE/ENABLE 控制介面可讓外部控制器管理輸出。衰退模式可選擇為緩慢、混合衰退、智慧調諧漣波控制或智慧調諧動態衰退電流穩壓機制。
DRV8256PEVM — DRV8256 PWM 控制介面全橋馬達驅動器評估模組
DRV8256P 評估模組 (EVM) 可輕鬆評估 DRV8256P 裝置。
DRV8932P 整合兩個 N 通道功率 MOSFET 全橋及整合式電流感測與穩壓電路。DRV8256P 裝置透過單一電源供應器運作，並支援 4.5 至 48V 的廣泛輸入供應範圍。簡易的 PWM 控制介面可讓外部控制器管理輸出。衰退模式可選擇為緩慢、混合衰退、智慧調諧漣波控制或智慧調諧動態衰退電流穩壓機制。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
| VQFN (RGE) | 24 | 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
- 進行中持續性的可靠性監測
- 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。