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Supervisor & reset ICs

TPS3704

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Multichannel window supervisor with high accuracy and compact form factor

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TPS3704

ACTIVO
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Detalles del producto

Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.4, 0.768, 0.8, 0.832, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 2, 3, 4 Threshold voltage 1 (typ) (V) 0.4, 0.768, 0.8, 0.832, adjustable Features Push-button, Reset time delay, Separate VDD & sense, Undervoltage and overvoltage monitor Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.0055 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0.02, 1, 5, 10, 20, 35, 50, 100, 150, 200, 400, 800, 1200 Supply voltage (min) (V) 1.7 Supply voltage (max) (V) 5.5 TI functional safety category Functional Safety-Compliant Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • Up to four independent voltage supervisor channels:
    • Fixed and adjustable window, UV, or OV voltage options. See for available options.
    • Easy to use calculator tool for adjustable versions
    • High threshold accuracy: ±0.25% (typical)
    • Built-in precision hysteresis: 0.75% (typical)
    • Fixed time delay options
    • Open drain outputs
  • Designed to support Arm-based processors such as TDA4, Sitara AM33xx, and advanced FPGAs and SOCs
  • Low quiescent current: 15 µA (maximum)
  • Temperature range: –40°C to +125°C
  • Functional Safety-Compliant
    • Systematic capability up to SIL 3
    • Hardware capability up to SIL 1
  • Up to four independent voltage supervisor channels:
    • Fixed and adjustable window, UV, or OV voltage options. See for available options.
    • Easy to use calculator tool for adjustable versions
    • High threshold accuracy: ±0.25% (typical)
    • Built-in precision hysteresis: 0.75% (typical)
    • Fixed time delay options
    • Open drain outputs
  • Designed to support Arm-based processors such as TDA4, Sitara AM33xx, and advanced FPGAs and SOCs
  • Low quiescent current: 15 µA (maximum)
  • Temperature range: –40°C to +125°C
  • Functional Safety-Compliant
    • Systematic capability up to SIL 3
    • Hardware capability up to SIL 1

The TPS3704x is a low-power precision window or standard voltage supervisor that can be configured as a quad, triple, or dual channel. Each channel has a threshold accuracy of ±1% in an 8-pin (1.6 mm x 2.9 mm) SOT-23 package offering a small solution size. The TPS3704x includes a very accurate threshold detection, with high resolution, that is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Built-in low threshold hysteresis and a fixed reset delay prevent false reset signals when monitoring multiple voltage rails.

The TPS3704x does not require any external resistors for setting the over and undervoltage reset thresholds, which further optimizes overall high accuracy, cost, solution size, and improves reliability for safety systems.

Separate VDD and SENSEx pins allow monitoring of rail voltages other than VDD or can be used as a push-button input. Optional use of external resistors are supported by the SENSEx pins. Each channel on the TPS3704x can be customized to its own over and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.

The TPS3704x is a low-power precision window or standard voltage supervisor that can be configured as a quad, triple, or dual channel. Each channel has a threshold accuracy of ±1% in an 8-pin (1.6 mm x 2.9 mm) SOT-23 package offering a small solution size. The TPS3704x includes a very accurate threshold detection, with high resolution, that is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Built-in low threshold hysteresis and a fixed reset delay prevent false reset signals when monitoring multiple voltage rails.

The TPS3704x does not require any external resistors for setting the over and undervoltage reset thresholds, which further optimizes overall high accuracy, cost, solution size, and improves reliability for safety systems.

Separate VDD and SENSEx pins allow monitoring of rail voltages other than VDD or can be used as a push-button input. Optional use of external resistors are supported by the SENSEx pins. Each channel on the TPS3704x can be customized to its own over and undervoltage window detection with an upper and lower threshold tolerance that can be symmetric or asymmetric.
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* Data sheet TPS3704x Quad, Triple, Dual Window or Standard Voltage Supervisor datasheet (Rev. E) PDF | HTML 08 dic 2023
Functional safety information TPS3704 Functional Safety Analysis Report Summary (FMEDA) (Rev. A) PDF | HTML 26 may 2022
Functional safety information TPS3704 Functional Safety Report Summary (Rev. A) PDF | HTML 26 may 2022
Functional safety information TPS3704x-Q1 Functional Safety Manual (Rev. A) PDF | HTML 26 may 2022

Diseño y desarrollo

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Placa de evaluación

TPS3704Q1EVM — Módulo de evaluación TPS3704 para supervisor de ventana multicanal con factor de forma compacto

El módulo de evaluación (EVM) TPS3704 es una plataforma para evaluar TPS3704-Q1, que es un supervisor de ventana multicanal y un IC de reinicio en un encapsulado compacto de transistor DDF (SOT-23) de 8 pines. El TPS3704Q1EVM supervisa carriles de tensión simples, dobles, triples y cuádruples. La (...)

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Modelo de simulación

TPS3704 and TPS3704-Q1 PSpice Transient Model

SNVMC94.ZIP (5083 KB) - PSpice Model
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Herramienta de cálculo

SNVR502 — TPS3704 Voltage Threshold Accuracy and Tolerance Calculator

Productos y hardware compatibles

Productos y hardware compatibles

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Supervisor & reset ICs
TPS3704 — Multichannel window supervisor with high accuracy and compact form factor TPS3704-Q1 — Automotive multichannel window supervisor with high accuracy and compact form factor
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Herramienta de cálculo

TPS3704-ADJ-CALC — TPS3704 adjustable-voltage threshold-resistor calculator

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Supervisor & reset ICs
TPS3704 — Multichannel window supervisor with high accuracy and compact form factor TPS3704-Q1 — Automotive multichannel window supervisor with high accuracy and compact form factor
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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Paquete Pasadores Descargar
SOT-23-THN (DDF) 8 Ver opciones
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