TLV840

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Supervisor de baja tensión, con retardo de reinicio ajustable y reinicio manual

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document-pdfAcrobat TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C) (Inglés)

TLV840

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Catalog

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.8, 1, 1.1, 1.3, 1.4, 2, 2.8, 2.9, 3, 3.3, 3.5, 4, 4.6, 5, 5.2

Features

Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

1

Iq (typ) (mA)

0.0001

Output driver type/reset output

Active-low, Open-drain, Push-Pull

Time delay (ms)

0, 0.04

Watchdog timer WDI (s)

None

Supply voltage (min) (V)

0.7

Supply voltage (max) (V)

6

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.8, 1, 1.1, 1.3, 1.4, 2, 2.8, 2.9, 3, 3.3, 3.5, 4, 4.6, 5, 5.2

Features

Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

1

Iq (typ) (mA)

0.0001

Output driver type/reset output

Active-low, Open-drain, Push-Pull

Time delay (ms)

0, 0.04

Watchdog timer WDI (s)

None

Supply voltage (min) (V)

0.7

Supply voltage (max) (V)

6

Operating temperature range (°C)

-40 to 125

SOT-23 (DBV)

5

8.12 mm² 2.9 x 2.8

Operating voltage range : 0.7 V to 6 V
Nano supply current : 120 nA (Typical)
Fixed threshold voltage (V_IT-): 0.8 V to 5.4 V
- Threshold voltages available in 100mV steps
- High accuracy: ±0.5% (Typical)
- Built-in hysteresis (V_HYS): 5% (Typical)
Reset time delay (t_D): capacitor-based programmable (TLV840C, TLV840M)
- Minimum time delay: 40 µs (typical) without capacitor
Active-low manual reset (MR) (TLV840M)
Four output topologies:
- TLV840xxDL: open-drain, active-low (RESET)
- TLV840xxPL: push-pull, active-low (RESET)
- TLV840xxDH: open-drain, active-high (RESET)
- TLV840xxPH: push-pull, active-high (RESET)
Wide temperature range: –40°C to +125°C
Package: SOT23-5 (DBV)

Operating voltage range : 0.7 V to 6 V
Nano supply current : 120 nA (Typical)
Fixed threshold voltage (V_IT-): 0.8 V to 5.4 V
- Threshold voltages available in 100mV steps
- High accuracy: ±0.5% (Typical)
- Built-in hysteresis (V_HYS): 5% (Typical)
Reset time delay (t_D): capacitor-based programmable (TLV840C, TLV840M)
- Minimum time delay: 40 µs (typical) without capacitor
Active-low manual reset (MR) (TLV840M)
Four output topologies:
- TLV840xxDL: open-drain, active-low (RESET)
- TLV840xxPL: push-pull, active-low (RESET)
- TLV840xxDH: open-drain, active-high (RESET)
- TLV840xxPH: push-pull, active-high (RESET)
Wide temperature range: –40°C to +125°C
Package: SOT23-5 (DBV)

The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (t_{p_HL}= 30 µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (V_IT-). Reset signal is cleared when VDD rise above V_IT- plus hysteresis (V_HYS) and the reset time delay (t_D) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.

Additional features: Low power-on reset voltage (V_POR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (I_lkg(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.

The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (t_{p_HL}= 30 µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (V_IT-). Reset signal is cleared when VDD rise above V_IT- plus hysteresis (V_HYS) and the reset time delay (t_D) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.

Additional features: Low power-on reset voltage (V_POR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (I_lkg(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Data sheet	TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C)		13 ago 2020
	Technical article	Three reasons to add a voltage supervisor to your next wearable power design	PDF \| HTML	17 jun 2021
	Application note	Back-up Power Supply Switchover with Supply Voltage Supervisor & Power & Power M		09 abr 2020
	Application note	Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions		10 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

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TLV840EVM — Módulo de evaluación TLV840 para supervisor de baja tensión, con retardo de tiempo de reinicio ajust

El módulo de evaluación TLV840 (EVM) está diseñado para evaluar el rendimiento del producto TLV840, que es un supervisor de tensión de 5 pines y un CI de reinicio. El TLV840 ofrece un funcionamiento de hasta 6 V, al tiempo que mantiene una baja corriente inactiva de 1.2 µA (máx.), además de una (...)

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TLV840 PSpice Model

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

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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TLV840

Supervisor de baja tensión, con retardo de reinicio ajustable y reinicio manual

TLV840

Detalles del producto

Documentación técnica

Diseño y desarrollo

TLV840EVM — Módulo de evaluación TLV840 para supervisor de baja tensión, con retardo de tiempo de reinicio ajust

TLV840 PSpice Model

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

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Soporte y capacitación

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