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Circuitos integrados de restablecimiento y vigilancia

TPS3899

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Supervisor de nanopotencia con detección programable y retardo de reinicio

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TPS3899

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Detalles del producto

Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.505, 0.8, 0.9, 1, 1.1, 1.3, 1.4, 1.5, 2, 2.2, 2.6, 2.8, 2.9, 3, 3.1, 3.5, 4.1, 4.2, 4.3, Adjustable, adjustable Features Detection time delay, Push-button, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5, 2, 2.5 Iq (typ) (mA) 0.000025 Output driver type/reset output Active-high, Active-low, Open-drain, Push-Pull Time delay (ms) 0.03, 0.04, 0.05, 0.08, 0.3, 6.2, 30, 619 Watchdog timer WDI (s) None TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Catalog Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.505, 0.8, 0.9, 1, 1.1, 1.3, 1.4, 1.5, 2, 2.2, 2.6, 2.8, 2.9, 3, 3.1, 3.5, 4.1, 4.2, 4.3, Adjustable, adjustable Features Detection time delay, Push-button, Reset time delay, Separate VDD & sense, Undervoltage monitor only Reset threshold accuracy (%) 0.5, 2, 2.5 Iq (typ) (mA) 0.000025 Output driver type/reset output Active-high, Active-low, Open-drain, Push-Pull Time delay (ms) 0.03, 0.04, 0.05, 0.08, 0.3, 6.2, 30, 619 Watchdog timer WDI (s) None TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
WSON (DSE) 6 2.25 mm² (1.5 mm × 1.5 mm)
  • Functional Safety-Capable
  • Precision voltage and push-button monitor
  • VDD range: 0.85V to 6V ( DL and PL outputs)
  • VDD range: 1V to 6V ( PH output)
  • Programmable sense and reset delay
  • Nano quiescent current: 125nA (typical)
  • High threshold accuracy: ±0.5% (typical)
  • Precision hysteresis: 5% (typical)
  • Adjustable threshold voltage: 0.505V (typical)
  • Fixed threshold voltage: 0.8V to 5.4V
    • Fixed threshold level available in 100mV steps
  • Multiple output topologies
    • DL: open-drain active-low
    • PL: push-pull active-low
    • PH: push-pull active-high
  • Temperature range: –40°C to +125°C
  • Package: 1.5mm × 1.5mm WSON
  • Functional Safety-Capable
  • Precision voltage and push-button monitor
  • VDD range: 0.85V to 6V ( DL and PL outputs)
  • VDD range: 1V to 6V ( PH output)
  • Programmable sense and reset delay
  • Nano quiescent current: 125nA (typical)
  • High threshold accuracy: ±0.5% (typical)
  • Precision hysteresis: 5% (typical)
  • Adjustable threshold voltage: 0.505V (typical)
  • Fixed threshold voltage: 0.8V to 5.4V
    • Fixed threshold level available in 100mV steps
  • Multiple output topologies
    • DL: open-drain active-low
    • PL: push-pull active-low
    • PH: push-pull active-high
  • Temperature range: –40°C to +125°C
  • Package: 1.5mm × 1.5mm WSON

The TPS3899 is a nano power, precision voltage supervisor with ±0.5% threshold accuracy and programmable sense and reset time delay in a 6 pin space saving 1.5mm x 1.5mm WSON package. The TPS3899 is a feature-rich voltage supervisor that offers the smallest total solution size in its class. Built-in hysteresis along with programmable delay prevent false reset signals when monitoring a voltage rail or push button signals.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a "manual reset" that can be used to force a system reset.

The precision performance, best in-class features in a compact form factor, makes the TPS3899 an ideal solution for wide ranging industrial and battery-powered applications such as Factory/Building Automation, Motor Drives, and consumer products. The device is fully specified over a temperature range of –40°C to +125°C (TA).

The TPS3899 is a nano power, precision voltage supervisor with ±0.5% threshold accuracy and programmable sense and reset time delay in a 6 pin space saving 1.5mm x 1.5mm WSON package. The TPS3899 is a feature-rich voltage supervisor that offers the smallest total solution size in its class. Built-in hysteresis along with programmable delay prevent false reset signals when monitoring a voltage rail or push button signals.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a "manual reset" that can be used to force a system reset.

The precision performance, best in-class features in a compact form factor, makes the TPS3899 an ideal solution for wide ranging industrial and battery-powered applications such as Factory/Building Automation, Motor Drives, and consumer products. The device is fully specified over a temperature range of –40°C to +125°C (TA).

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS3899 Nano-Power, Precision Voltage Supervisor, Push-Button Monitor with Programmable Sense and Reset Delay datasheet (Rev. C) PDF | HTML 16/01/2024
Información sobre seguridad funcional TPS3899 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 23/09/2021
Application brief Voltage Monitoring with Programmable Reset Assertion Timing Using the TPS3899 PDF | HTML 24/09/2020
Certificado TPS3899EVM EU Declaration of Conformity (DoC) 3/09/2020

Diseño y desarrollo

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Placa de evaluación

TPS3899EVM — Módulo de evaluación TPS3899 para supervisor de nanopotencia con detección programable y retardo de

El módulo de evaluación (EVM) del TPS3899 es una plataforma para evaluar el producto TPS3899, que es un supervisor de tensión de 6 pines e IC de reinicio. El TPS3899 ofrece un funcionamiento de hasta 6 V, al tiempo que mantiene una baja corriente inactiva de 1.2 µA (máx.), además de una precisión (...)

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Modelo de simulación

TPS3899 PSpice Transient Model (Push-Pull Programmable Threshold Version)

SLVMDL9.ZIP (90 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

TPS3899 PSpice Transient Model (Rev. A)

SLVMDI2A.ZIP (93 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DSE) 6 Ultra Librarian
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