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 R_DS(on) variants to support different loads with minimal design changes.

An 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.

A 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.

View our full portfolio of brushed motor drivers on ti.com.

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

• Number of full bridges
• 1
• Vs (Min) (V)
• 4.5
• Vs ABS (Max) (V)
• 40
• Peak output current (A)
• 6
• RDS(ON) (HS + LS) (mOhms)
• 200
• Sleep current (uA)
• 0.75
• Control mode
• Independent 1/2-Bridge, PH/EN, PWM
• Control interface
• Hardware (GPIO)
• Features
• Integrated Current Sensing
• Rating
• Automotive
• TI functional safety category
• Functional Safety-Capable
• Operating temperature range (C)
• -40 to 125

DRV8874-Q1的完整型号有：DRV8874QPWPRQ1，以下是这些产品的关键参数及官网采购报价：

DRV8874QPWPRQ1，工作温度：-40 to 125，封装：HTSSOP (PWP)-16，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网DRV8874QPWPRQ1的批量USD价格：1.646（1000+）

DRV8874-Q1EVM — DRV8874-Q1 单通道 H 桥电机驱动器评估模块

DRV8874-Q1 评估模块 (EVM) 可轻松评估 DRV8874-Q1 器件。

DRV8874-Q1 器件是一款集成 H 桥驱动器，适用于刷式直流和电磁阀应用。使用此评估模块，可以将器件配置为 PWM、相位/使能端或独立半桥控制模式。板载 MSP430FR2100 可以为 DRV8874EVM 的输入引脚提供 PWM 信号。PWM 信号的占空比由板载电位器设置。

有关该评估模块的更多信息，请参阅《DRV8874-Q1EVM 用户指南》。