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DRV8874

AKTIV

40-V-, 6-A-H-Brücken-Motortreiber mit integrierter Strommessrückführung

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Datenblatt

DRV8874

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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 mm × 6.4 mm)
  • 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt DRV8874 H-Bridge Motor Driver With Integrated Current Sense and Regulation datasheet (Rev. A) PDF | HTML 28.05.2019
Application brief Advantages of Integrated Current Sensing (Rev. B) PDF | HTML 20.06.2022
Anwendungshinweis Using DRV to Drive Solenoids (Rev. A) PDF | HTML 24.04.2022
Anwendungshinweis Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) PDF | HTML 19.01.2021
Technischer Artikel Overcoming design challenges for brushed-DC motors in smart sanitation systems PDF | HTML 01.07.2020
Technischer Artikel Automating smart home blinds, shades and shutters with motor drivers PDF | HTML 02.01.2020
Technischer Artikel Automating smart home systems with motor drivers PDF | HTML 24.10.2019
Technischer Artikel Using brushed motors to improve battery life and reliability in vacuum robots PDF | HTML 17.07.2019
Application brief Small Motors in Large Appliances 20.07.2018
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Design und Entwicklung

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Evaluierungsplatine

DRV8874EVM — DRV8874 Evaluierungsmodul für einen einzelnen H-Brücken-Motortreiber

Das Evaluierungsmodul DRV8874 (EVM) ermöglicht die einfache Evaluierung des Bausteins DRV8874.

Der Baustein DRV8874 ist ein integrierter H-Brücken-Treiber für Gleichstrombürstenmotor- und Magnetanwendungen. Das Evaluierungsmodul ermöglicht die Konfiguration des Bausteins für PWM-, Phase/Aktivierung- (...)

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Support-Software

SLVC747 — DRV887xEVM Firmware

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Simulationsmodell

DRV8874 PSpice Transient Simulation (Rev. A)

SLVMCX0A.ZIP (112 KB) - PSpice-Modell
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HTSSOP (PWP) 16 Ultra Librarian
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