封裝資訊
| 封裝 | 針腳 HTSSOP (DDW) | 44 |
| 操作溫度範圍 (°C) -40 to 85 |
| 包裝數量 | 運送業者 2,000 | LARGE T&R |
DRV8412 的特色
- High-efficiency power stage (up to 97%) with low RDS(on) MOSFETs (110mΩ at TJ = 25°C)
- Operating supply voltage up to 52V
- DRV8412 (Power pad down): up to 2 × 3A continuous output current (2 × 6A peak) in dual full-bridge mode or 6A continuous current in parallel mode (12A peak)
- DRV8432 (Power pad up): up to 2 × 7A continuous output current (2 × 12A peak) in dual full-bridge mode or 14A continuous current in parallel mode (24A peak)
- PWM operating frequency up to 500kHz
- Integrated self-protection circuits including undervoltage, overtemperature, overload, and short circuit
- Programmable cycle-by-cycle current limit protection
- Independent supply and ground pins for each half bridge
- Intelligent gate drive and cross conduction prevention
- No external snubber or schottky diode is required
DRV8412 的說明
The DRV841x2 are high-performance, integrated dual full-bridge motor driver with an advanced protection system.
Because of the low RDS(on) of the H-Bridge MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%. This high efficiency enables the use of smaller power supplies and heatsinks, and the devices are good candidates for energy-efficient applications.
The DRV841x2 requires two power supplies, one at 12V for GVDD and VDD, and another up to 50 V for PVDD. The DRV841x2 can operate at up to 500kHz switching frequency while still maintaining precise control and high efficiency. The devices also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection. The DRV841x2 has a current-limiting circuit that prevents device shutdown during load transients such as motor start-up. A programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements.
The DRV841x2 has unique independent supply and ground pins for each half-bridge. These pins make it possible to provide current measurement through external shunt resistor and support multiple motors with different power supply voltage requirements.