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TPS371K-Q1

PRESENTACIÓN PRELIMINAR

Supervisor de ventana de 1500 V para la industria automotriz con búfer integrado para mediciones de

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TPS371K-Q1

PRESENTACIÓN PRELIMINAR
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Detalles del producto

Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) Adjustable Features Detection time delay, High voltage input, Reset time delay, Self-Test, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.005 Watchdog timer WDI (s) None Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125
Rating Automotive Number of supplies monitored 1 Threshold voltage 1 (typ) (V) Adjustable Features Detection time delay, High voltage input, Reset time delay, Self-Test, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.04 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.005 Watchdog timer WDI (s) None Supply voltage (min) (V) 2.7 Supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 125
SSOP (DFX) 15 131.84 mm² 12.8 x 10.3
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • Functional Safety-Compliant Targeted (Preview)
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
  • Overvoltage and undervoltage fault monitor for 400V & 800V BMS and DC-Link
    • 1% overvoltage and undervoltage outputs
    • Fast detection time (<5µs) to help minimize system fault tolerant time interval
    • 30V to 60V Low UV output
  • Device flexibility to meet design requirements
    • User selectable adjustable overvoltage and undervoltage thresholds
    • User programmable capacitor-based glitch rejection and deassertion delay
  • Integrated buffer for ADC monitoring
    • High accuracy 0.35% (maximum) scaled down voltage of sense pin
    • VSENSE pin can directly drive high-speed ADC inputs
  • Designed for safety applications (Preview)
    • Output latching feature to help bring system to safe state
    • Built-In Self-Test to monitor device functionality and enhance system protection
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C
  • Functional Safety-Compliant Targeted (Preview)
    • Development targeted for functional safety applications
    • Documentation to aid ISO 26262 system design
  • Overvoltage and undervoltage fault monitor for 400V & 800V BMS and DC-Link
    • 1% overvoltage and undervoltage outputs
    • Fast detection time (<5µs) to help minimize system fault tolerant time interval
    • 30V to 60V Low UV output
  • Device flexibility to meet design requirements
    • User selectable adjustable overvoltage and undervoltage thresholds
    • User programmable capacitor-based glitch rejection and deassertion delay
  • Integrated buffer for ADC monitoring
    • High accuracy 0.35% (maximum) scaled down voltage of sense pin
    • VSENSE pin can directly drive high-speed ADC inputs
  • Designed for safety applications (Preview)
    • Output latching feature to help bring system to safe state
    • Built-In Self-Test to monitor device functionality and enhance system protection

TPS371K-Q1 is an automotive supervisor for voltage monitoring with an integrated buffer for 400V and 800V DC-link voltage measurements. The TPS371K-Q1 eliminates large resistor ladders with the integrated high voltage ladder. This device’s SENSE pin can be directly connected to 400V or 800V automotive battery systems and DC-Link for continuous monitoring of overvoltage (OV), undervoltage (UV), and low undervoltage (LUV) conditions. The TPS371K-Q1 offers CTS for programmable glitch rejection for noisy environments.

The TPS371K-Q1 has a integrated high-speed buffer VSENSE for supply voltage measurements. The buffer has a low output impedance which can directly drive ADC inputs. VSENSE is a scaled down voltage of the SENSE pin input.

The combination of voltage supervisor and integrated buffer allows for the smallest signal chain size for direct monitoring of 400V and 800V systems. This combination also allows for redundant digital and analog always on voltage fault monitoring.

The TPS371K-Q1 is available in a 12.8mm × 7.4mm SOIC 15-pin package. TPS371K-Q1 operates over -40°C to +125°C TA.

TPS371K-Q1 is an automotive supervisor for voltage monitoring with an integrated buffer for 400V and 800V DC-link voltage measurements. The TPS371K-Q1 eliminates large resistor ladders with the integrated high voltage ladder. This device’s SENSE pin can be directly connected to 400V or 800V automotive battery systems and DC-Link for continuous monitoring of overvoltage (OV), undervoltage (UV), and low undervoltage (LUV) conditions. The TPS371K-Q1 offers CTS for programmable glitch rejection for noisy environments.

The TPS371K-Q1 has a integrated high-speed buffer VSENSE for supply voltage measurements. The buffer has a low output impedance which can directly drive ADC inputs. VSENSE is a scaled down voltage of the SENSE pin input.

The combination of voltage supervisor and integrated buffer allows for the smallest signal chain size for direct monitoring of 400V and 800V systems. This combination also allows for redundant digital and analog always on voltage fault monitoring.

The TPS371K-Q1 is available in a 12.8mm × 7.4mm SOIC 15-pin package. TPS371K-Q1 operates over -40°C to +125°C TA.
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* Data sheet TPS371K-Q1 Automotive 1500V Window (OV & UV) Supervisor with Integrated Buffer for 400V and 800V DC-Link Voltage Measurements datasheet PDF | HTML 10 abr 2025

Diseño y desarrollo

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Placa de evaluación

TPS371KEVM — Módulo de evaluación TPS371K

El módulo de evaluación (EVM) TPS371K se utiliza para la familia de supervisores de voltaje TPS371K-Q1. El propósito de este EVM es proporcionar un diseño ejemplar y un terminal de prueba para todos los pines de entrada y salida del dispositivo TPS371K-Q1 para capturar mediciones y así (...)

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PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
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