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DRV8874-Q1

具有集成電流感應(yīng)和電流感應(yīng)反饋功能的汽車類 40V、6A H 橋電機(jī)驅(qū)動(dòng)器; ? AEC-Q100 qualified for automotive applications: \n? Temperature grade 1: –40°C to +125°C, TA \n \n? Functional Safety-Capable \n? Documentation available to aid functional safety system design \n \n? N-channel H-bridge motor driver \n? Drives one bidirectional brushed DC motor\n? Two unidirectional brushed DC motors\n? Other resistive and inductive loads\n \n? 4.5-V to 37-V operating supply voltage range\n? Pin to pin RDS(on) variants \n? DRV8874-Q1: 200-mΩ (High-Side + Low-Side)\n? DRV8876-Q1: 700-mΩ (High-Side + Low-Side)\n \n? High output current capability \n? DRV8874-Q1: 6-A Peak\n? DRV8876-Q1: 3.5-A Peak\n \n? Integrated current sensing and regulation\n? Proportional current output (IPROPI)\n? Selectable current regulation (IMODE) \n? Cycle-by-cycle or fixed off time\n \n? Selectable input control modes (PMODE) \n? PH/EN and PWM H-bridge control modes\n? Independent half-bridge control mode\n \n? Supports 1.8-V, 3.3-V, and 5-V logic inputs\n? Ultra low-power sleep mode \n? VM = 24-V, TJ = 25°C\n \n? Spread spectrum clocking for low electromagnetic interference (EMI)\n? Integrated protection features \n? Undervoltage lockout (UVLO)\n? Charge pump undervoltage (CPUV)\n? Overcurrent protection (OCP) \n? Automatic retry or outputs latched off (IMODE)\n \n? Thermal shutdown (TSD)\n? Automatic fault recovery\n? Fault indicator pin (nFAULT);

The DRV8874-Q1 is an integrated motor driver with N-channel H-bridge, charge pump, current sensing and proportional output, current regulation, and protection circuitry. The charge pump improves efficiency by supporting N-channel MOSFET half bridges and 100% duty cycle driving. The family of devices come in pin-to-pin RDS(on) variants to support different loads with minimal design changes.\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. Using the external voltage reference pin, VREF, these devices can regulate the motor current during start-up and high-load 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, charge pump undervoltage, output overcurrent, and device overtemperature. Fault conditions are indicated on nFAULT.\n\nView our full portfolio of brushed motor drivers on ti.com.

DRV8874-Q1

H-Bridge Motor Driver With Integrated Current Sense and Regulation

DRV8874-Q1EVM

包裝：盒 功能：電機(jī)控制器/驅(qū)動(dòng)器 類別：開發(fā)板，套件，編程器 評(píng)估和演示板及套件 描述：DRV8874-Q1 SINGLE H-BRIDGE MOTOR