DRV8231

具有電流調(diào)節(jié)功能的 33V H 橋電機(jī)驅(qū)動(dòng)器; ? N-channel H-bridge brushed DC motor driver \n? 4.5-V to 33-V operating supply voltage range\n? Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror) \n? DRV8870: 6.5-V to 45-V, 565-mΩ, shunt \n? DRV8251: 4.5-V to 48-V, 450-mΩ, shunt \n? DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror \n? DRV8231: 4.5-V to 33-V, 600-mΩ, shunt \n? DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror \n \n? High output current capability: 3.7-A Peak\n? PWM control interface\n? Supports 1.8-V, 3.3-V, and 5-V logic inputs\n? Integrated current regulation\n? Low-power sleep mode \n? VM = 24-V, TJ = 25°C\n \n? Small package and footprint \n? 8-Pin WSON with PowerPAD?, 2.0 × 2.0 mm\n? 8-Pin HSOP with PowerPAD?, 4.9 × 6.0 mm\n \n? Integrated protection features \n? VM undervoltage lockout (UVLO)\n? Auto-retry overcurrent protection (OCP)\n? Thermal shutdown (TSD);

The DRV8231 device is an integrated motor driver with N-channel H-bridge, charge pump, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.\n\nThe DRV8231 implements a current regulation feature by comparing the analog input VREF and the voltage across a current-sense shunt resistor on the ISEN pin. The ability to limit current can significantly reduce large currents during motor startup and stall conditions.\n\nA low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.\n\nThe DRV8231 is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

DRV8231

DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation

DRV8231

DRV8251 4.1-A Brushed DC Motor Driver with Integrated Current Regulation

DRV8231

DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation

DRV8231

DRV8231A 3.7-A Brushed DC Motor Driver with Integrated Current Sense and Regulation

DRV8231

DRV8251A 4.1-A Brushed DC Motor Driver with Integrated Current Sense and Regulation

DRV8231A

具有電流調(diào)節(jié)和電流檢測(cè)反饋的 33V H 橋電機(jī)驅(qū)動(dòng)器; ? N-channel H-bridge brushed DC motor driver \n? 4.5-V to 33-V operating supply voltage range\n? Pin-to-pin, RDS(on), voltage, and current sense/regulation variants (external shunt resistor and integrated current mirror) \n? DRV8870: 6.5-V to 45-V, 565-mΩ, shunt \n? DRV8251: 4.5-V to 48-V, 450-mΩ, shunt \n? DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror \n? DRV8231: 4.5-V to 33-V, 600-mΩ, shunt \n? DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror \n \n? High output current capability: 3.7-A Peak\n? PWM control interface\n? Supports 1.8-V, 3.3-V, and 5-V logic inputs\n? Integrated IPROPI current sensing for stall detection and current regulation\n? Low-power sleep mode \n? VM = 24-V, TJ = 25°C\n \n? Small package and footprint \n? 8-Pin WSON with PowerPAD?, 2.0 × 2.0 mm\n? 8-Pin HSOP with PowerPAD?, 4.9 × 6.0 mm\n \n? Integrated protection features \n? VM undervoltage lockout (UVLO)\n? Auto-retry overcurrent protection (OCP)\n? Thermal shutdown (TSD);

The DRV8231A device is an integrated motor driver with N-channel H-bridge, charge pump, current sense feedback, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving.\n\nAn internal current mirror architecture on the IPROPI pin implements current sensing and regulation. This eliminates the need for a large power shunt resistor, saving board area and reducing system cost. The IPROPI current-sense output allows a microcontroller to detect motor stall or changes in load conditions. The external voltage reference pin, VREF, determines the threshold of current regulation during start-up and stall events without interaction from a microcontroller.\n\nA low-power sleep mode achieves ultra-low quiescent current draw by shutting down most of the internal circuitry. Internal protection features include supply undervoltage lockout, output overcurrent, and device overtemperature.\n\nThe DRV8231A is part of a family of devices which come in pin-to-pin, scalable RDS(on) and supply voltage options to support various loads and supply rails with minimal design changes. See Section 5 for information on the devices in this family. View the full portfolio of brushed motor drivers on ti.com.

DRV8231_V01

DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation

DRV8231A

DRV8231A 3.7-A Brushed DC Motor Driver with Integrated Current Sense and Regulation

DRV8231A

DRV8231 3.7-A Brushed DC Motor Driver with Integrated Current Regulation