TLV840

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Niederspannungsüberwacher mit zeitverzögertem einstellbarem Reset und manuellem Reset

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Datenblatt

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

TLV840

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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

Detection time delay, 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)

0.04

Supply voltage (min) (V)

0.7

Supply voltage (max) (V)

6

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 125

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

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

Features

Detection time delay, 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)

0.04

Supply voltage (min) (V)

0.7

Supply voltage (max) (V)

6

Rating

Catalog

Watchdog timer WDI (s)

None

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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Alle anzeigen 7

	Typ	Titel		Datum
*	Data sheet	TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C)		13 Aug 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 Apr 2020
	Application note	Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions		10 Mär 2020
	Selection guide	Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H)		28 Feb 2020
	EVM User's guide	TLV840EVM Voltage Supervisor User's Guide		13 Feb 2020
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28 Jun 2019

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Evaluierungsplatine

TLV840EVM — TLV840-Niederspannungsüberwacher mit einstellbarer zeitverzögertem einstellbarem Reset und manuellem

The TLV840 evaluation module (EVM) is designed to evaluate the performance of the TLV840 product, which is a 5-pin voltage supervisor and reset IC. TLV840 offers operation up to 6 V, while maintaining low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.

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PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)

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TLV840

Niederspannungsüberwacher mit zeitverzögertem einstellbarem Reset und manuellem Reset

TLV840

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TLV840EVM — TLV840-Niederspannungsüberwacher mit einstellbarer zeitverzögertem einstellbarem Reset und manuellem

TLV840 PSpice Model

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