Inicio Gestión de la energía Supervisor & reset ICs

TPS3808

ACTIVO

Supervisor de corriente quiescente baja con retardo programable y reinicio manual

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NUEVO TPS3808E ACTIVO Supervisor de corriente quiescente ultrabaja de 600 nA con retardo programable y reinicio manual TPS3808E offers superior accuracy to help optimize system reset timing, and a 4-fold reduction in quiescent current.

Detalles del producto

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.405, 0.84, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.07, 4.65 Features Manual reset capable Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.0024 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 0.405, 0.84, 1.16, 1.4, 1.67, 1.77, 2.33, 2.79, 3.07, 4.65 Features Manual reset capable Reset threshold accuracy (%) 2 Iq (typ) (mA) 0.0024 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 1.8 Supply voltage (max) (V) 6.5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 WSON (DRV) 6 4 mm² 2 x 2
  • Power-on reset generator with adjustable delay time: 1.25 ms to 10 s
  • Very low quiescent current: 2.4 µA typical
  • High threshold accuracy: 0.5% typical
  • Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.4 V are available
  • Manual reset ( MR) input
  • Open-drain RESET output
  • Temperature range: –40°C to 125°C
  • Small SOT-23 and 2-mm × 2-mm WSON packages
  • Power-on reset generator with adjustable delay time: 1.25 ms to 10 s
  • Very low quiescent current: 2.4 µA typical
  • High threshold accuracy: 0.5% typical
  • Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.4 V are available
  • Manual reset ( MR) input
  • Open-drain RESET output
  • Temperature range: –40°C to 125°C
  • Small SOT-23 and 2-mm × 2-mm WSON packages

The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset ( MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset ( MR) return above the respective thresholds.

The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (TJ).

The TPS3808 family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset ( MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset ( MR) return above the respective thresholds.

The TPS3808 device uses a precision reference to achieve 0.5% threshold accuracy for VIT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the CT pin, 300 ms by connecting the CT pin to VDD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the CT pin to an external capacitor. The TPS3808 device has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in the SOT-23 and 2-mm × 2-mm WSON packages, and is fully specified over a temperature range of –40°C to 125°C (TJ).

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS3808 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit datasheet (Rev. M) PDF | HTML 04 mar 2023
Application note Voltage and Processor Monitoring Solutions in Factory Automation and Control App (Rev. A) 05 ago 2021
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) 17 mar 2020
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 28 feb 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 jun 2019
Application brief Latching a Voltage Supervisor (Reset IC) (Rev. A) 05 abr 2019
Application note Comparing Voltage and Processor Monitoring Solutions 05 abr 2019
Application brief Mitigating the Voltage Glitch on the Output of a Voltage Supervisor (Reset IC) D 27 jun 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
Design guide Using the TMS320C6657 to Implement Efficient OPUS Codec Solution Design Guide 16 jun 2015
Application note Setting the SVS Voltage Monitor Threshold 23 may 2012
Application note Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs 19 sep 2011
Application note Sensitivity Analysis for Power Supply Design 06 sep 2011
Application note Power Two Xilinx(TM) LX240 Virtex-6(TM) Devices 20 abr 2010
White paper Spartan 6 LX150T Modular Solution 14 oct 2009
User guide Virtex 6 LX130T Module design 27 ago 2009

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

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Placa de evaluación

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Kit de desarrollo

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Ejemplo de código o demostración

TIDCB93 Monte Carlo Simulation Example for OpenCL Software

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Supervisor & reset ICs
TPS3808 Supervisor de corriente quiescente baja con retardo programable y reinicio manual
Soporte de software

SPRCA41 G3 Data Concentrator Development Package Software (v4.5.0.10)

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Supervisor & reset ICs
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Modelo de simulación

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Modelo de simulación

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Plano de montaje

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Lista de materiales (BOM)

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Símbolo CAD/CAE

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Símbolo CAD/CAE

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Símbolo CAD/CAE

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Archivo Gerber

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Archivo Gerber

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Disposición de la PCB

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Disposición de la PCB

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Disposición de la PCB

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Esquema

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Esquema

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Herramienta de simulación

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Paquete Pasadores Descargar
SOT-23 (DBV) 6 Ver opciones
WSON (DRV) 6 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

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