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DRV2911-Q1

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Controlador piezoeléctrico monocanal con entrada PWM automotriz, para limpieza ultrasónica

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DRV2911-Q1

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Detalles del producto

Architecture Class-D, Fully Differential, Single-ended Input signal PWM Vs (min) (V) 5 Vs (max) (V) 3.6, 40 Vout (max) (V) 40 Iq (typ) (mA) 7 Bandwidth (typ) (MHz) 0.0002 Shutdown current (ISD) (µA) 1.5 Rating Automotive Operating temperature range (°C) -40 to 125
Architecture Class-D, Fully Differential, Single-ended Input signal PWM Vs (min) (V) 5 Vs (max) (V) 3.6, 40 Vout (max) (V) 40 Iq (typ) (mA) 7 Bandwidth (typ) (MHz) 0.0002 Shutdown current (ISD) (µA) 1.5 Rating Automotive Operating temperature range (°C) -40 to 125
VQFN (RGF) 40 35 mm² 7 x 5
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • Wettable flank package
  • 2-Channel half bridge driver
    • PWM-inputs for each half bridge control
    • Overcurrent protection
    • Supports up to 200kHz PWM frequency
  • 5V to 35V operating voltage (40V abs max)
  • High output current capability: 8A Peak
  • Low MOSFET on-state resistance
    • 95mΩ (typ.) RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 2.5µA (max.) at VPVDD = 13.5V, TA = 25°C
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Built-in 3.3V, 30mA LDO regulator
  • Integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (FAULTZ)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • Wettable flank package
  • 2-Channel half bridge driver
    • PWM-inputs for each half bridge control
    • Overcurrent protection
    • Supports up to 200kHz PWM frequency
  • 5V to 35V operating voltage (40V abs max)
  • High output current capability: 8A Peak
  • Low MOSFET on-state resistance
    • 95mΩ (typ.) RDS(ON) (HS + LS) at TA = 25°C
  • Low power sleep mode
    • 2.5µA (max.) at VPVDD = 13.5V, TA = 25°C
  • Supports 1.8V, 3.3V, and 5V logic inputs
  • Built-in 3.3V, 30mA LDO regulator
  • Integrated protection features
    • Supply undervoltage lockout (UVLO)
    • Charge pump undervoltage (CPUV)
    • Overcurrent protection (OCP)
    • Thermal warning and shutdown (OTW/OTSD)
    • Fault condition indication pin (FAULTZ)

DRV2911-Q1 integrates two H-bridges for driving piezo-based Lens Cover Systems, LCS, up to 40V absolute maximum capability while maintaining a very low RDS(ON) to reduce switching losses. DRV2911-Q1 integrates a power management LDO (3.3V / 30mA) and buck converter (5.0V to 5.7V, ≤200mA) that can be used to power external circuits like the Ultrasonic Lens Cleaning (ULC) controller, ULC1001.

Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration. Two independent PWM inputs drive each half-bridge. The DRV2911-Q1 includes a 30mA, 3.3V LDO regulator.

Several protection features including supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning (OTW), and over-temperature shutdown (OTSD) are integrated into DRV2911-Q1 to protect the device and system against fault events. Fault conditions are indicated by the FAULTZ pin. The fault pin can also be tied to the controller device, like ULC1001-Q1, where a fault can be recognized over I2C.

DRV2911-Q1 integrates two H-bridges for driving piezo-based Lens Cover Systems, LCS, up to 40V absolute maximum capability while maintaining a very low RDS(ON) to reduce switching losses. DRV2911-Q1 integrates a power management LDO (3.3V / 30mA) and buck converter (5.0V to 5.7V, ≤200mA) that can be used to power external circuits like the Ultrasonic Lens Cleaning (ULC) controller, ULC1001.

Each output driver channel consists of N-channel power MOSFETs configured in a half-bridge configuration. Two independent PWM inputs drive each half-bridge. The DRV2911-Q1 includes a 30mA, 3.3V LDO regulator.

Several protection features including supply undervoltage lockout (UVLO), charge pump undervoltage (CPUV), overcurrent protection (OCP), over-temperature warning (OTW), and over-temperature shutdown (OTSD) are integrated into DRV2911-Q1 to protect the device and system against fault events. Fault conditions are indicated by the FAULTZ pin. The fault pin can also be tied to the controller device, like ULC1001-Q1, where a fault can be recognized over I2C.
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* Data sheet DRV2911-Q1 Full-Bridge PWM Input Piezo Driver for Ultrasonic Lens Cleaning datasheet PDF | HTML 25 jun 2024

Diseño y desarrollo

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Placa de evaluación

ULC1001-DRV2911EVM — Módulo de evaluación ULC1001 e DRV2911

El ULC1001-DRV2911EVM es un módulo de evaluación (EVM) de limpieza ultrasónica de lentes (ULC) que proporciona una solución de dos chips automotriz del controlador procesador de señal digital (DSP) ULC1001 y el controlador piezoeléctrico DRV2911. Los dos componentes trabajan juntos para (...)

Guía del usuario: PDF | HTML
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Placa de evaluación

ULC-HPB-DEMO — 2-MP camera with integrated ultrasonic lens cleaning and mini spray bottle

The ULC-HPB-DEMO is a collaboration between Texas Instruments and HPB Optoelectronics to create an all-in-one evaluation system for ultrasonic lens cleaning (ULC). The construction of the demonstration kit is completed by HPB Optoelectronics. Also known as the Executive Demo, this demo is simple (...)
Desde: H.P.B. Optoelectronics Co., LTD.
Guía del usuario: PDF | HTML
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