產品詳情

Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 6 RDS(ON) (HS + LS) (mΩ) 200 Sleep current (μA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Topology Integrated FET Rating Catalog Operating temperature range (°C) -40 to 125
Number of full bridges 1 Vs (min) (V) 4.5 Vs ABS (max) (V) 40 Peak output current (A) 6 RDS(ON) (HS + LS) (mΩ) 200 Sleep current (μA) 0.75 Control mode Independent 1/2-Bridge, PH/EN, PWM Control interface Hardware (GPIO) Features Current sense Amplifier, Integrated Current Sensing Topology Integrated FET Rating Catalog Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm2 5 x 6.4
  • 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: 200-mΩ (High-Side + Low-Side)
    • DRV8876: 700-mΩ (High-Side + Low-Side)
  • High output current capability
    • DRV8874: 6-A Peak
    • DRV8876: 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)
  • 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: 200-mΩ (High-Side + Low-Side)
    • DRV8876: 700-mΩ (High-Side + Low-Side)
  • High output current capability
    • DRV8874: 6-A Peak
    • DRV8876: 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)

The DRV8874 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.

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.

The DRV8874 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.

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.
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設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

DRV8874EVM — DRV8874 單通道 H 橋電機驅動器評估模塊

DRV8874 評估模塊 (EVM) 可用于輕松評估 DRV8874 器件。

DRV8874 器件是一款集成式 H 橋驅動器，適用于有刷直流和電磁閥應用。使用此評估模塊，可以將器件配置為 PWM、相位/使能端或獨立半橋控制模式。板載 MSP430FR2100 可以為 DRV8874EVM 的輸入引腳提供 PWM 信號。PWM 信號的占空比通過板載電位器來設置。

更多有關該評估模塊的信息，請參閱《DRV8874EVM 用戶指南》。

用戶指南: PDF
TI.com 上無現貨
支持軟件

SLVC747 — DRV887xEVM Firmware

支持的產品和硬件

支持的產品和硬件

產品
有刷直流 (BDC) 電機驅動器
DRV8874 — 具有集成電流檢測反饋功能的 40V、6A H 橋電機驅動器 DRV8876 — 具有集成電流感應和電流感應反饋功能的 40V、3.5A H 橋電機驅動器
硬件開發
評估板
DRV8874-Q1EVM — DRV8874-Q1 單通道 H 橋電機驅動器評估模塊 DRV8874EVM — DRV8874 單通道 H 橋電機驅動器評估模塊 DRV8876-Q1EVM — DRV8876-Q1 單通道 H 橋電機驅動器評估模塊 DRV8876EVM — DRV8876 單通道 H 橋電機驅動器評估模塊
仿真模型

DRV8874 PSpice Transient Simulation (Rev. A)

SLVMCX0A.ZIP (112 KB) - PSpice Model
下載
封裝 引腳 CAD 符號、封裝和 3D 模型
HTSSOP (PWP) 16 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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