TPS3842-Q1

AKTIV

42 V, kleiner Unter- oder Überspannungsmonitor mit programmierb. Verzögerung für Automobilindustrie

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Datenblatt

document-pdfAcrobat TPS3842-Q1 Automotive 42V Small Size, 850nA Undervoltage or Overvoltage Supervisor With Programmable Delay and De-Glitch datasheet (Rev. B) (Englisch) PDF | HTML

TPS3842-Q1

AKTIV

Datenblatt

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Produktdetails

Rating

Automotive

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

6.5, Adjustable

Features

Low Quiescent Current, Overvoltage monitor only, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

0.5

Iq (typ) (mA)

0.00085

Output driver type/reset output

Active-high, Active-low, Open-drain

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

6.5, Adjustable

Features

Low Quiescent Current, Overvoltage monitor only, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

0.5

Iq (typ) (mA)

0.00085

Output driver type/reset output

Active-high, Active-low, Open-drain

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 125

SOT-5X3 (DRL)

6

2.56 mm² (1.6 mm × 1.6 mm)

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature TA
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Wide supply voltage range: 1.9V to 42V
VDD, SENSE, and RESET are rated to 42V
Very low quiescent current: 850nA (typical)
High threshold accuracy: 0.5% (typical)
Fixed internal threshold voltages: 2.7V to 9.5V
Adjustable voltage variant: 0.7V
Capacitor adjustable delay time with CTR pin
Capacitor adjustable de-glitch time with CTS pin
Undervoltage open-drain, active-low output
Overvoltage open-drain, active-low and active-high output
Temperature range: –40°C to 125°C
Small size: SOT5X3 (DRL)

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature TA
- Device HBM ESD classification level 2
- Device CDM ESD classification level C7B
Wide supply voltage range: 1.9V to 42V
VDD, SENSE, and RESET are rated to 42V
Very low quiescent current: 850nA (typical)
High threshold accuracy: 0.5% (typical)
Fixed internal threshold voltages: 2.7V to 9.5V
Adjustable voltage variant: 0.7V
Capacitor adjustable delay time with CTR pin
Capacitor adjustable de-glitch time with CTS pin
Undervoltage open-drain, active-low output
Overvoltage open-drain, active-low and active-high output
Temperature range: –40°C to 125°C
Small size: SOT5X3 (DRL)

The TPS3842-Q1 is an automotive 42V input voltage supervisor with 850nA IDD and 1.5% accuracy, and a fast detection time. The TPS3842-Q1 can be connected directly to 12V battery for continuous monitoring of undervoltage (UV) conditions or overvoltage (OV) conditions. The TPS3842-Q1 comes in a small DRL package for size constrained applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842-Q1 offers capacitor programmable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.

The TPS3842-Q1 is an automotive 42V input voltage supervisor with 850nA IDD and 1.5% accuracy, and a fast detection time. The TPS3842-Q1 can be connected directly to 12V battery for continuous monitoring of undervoltage (UV) conditions or overvoltage (OV) conditions. The TPS3842-Q1 comes in a small DRL package for size constrained applications. Built-in hysteresis on the SENSE pin prevents false reset signals when monitoring a supply voltage rail. 1%, 5%, and 10% hysteresis voltage options are available to offer design flexibility to support voltage transients.

SENSE is decoupled from VDD and can monitor higher and lower voltages than VDD. Fixed threshold variants provide accurate low-Iq voltage monitoring. Adjustable threshold variants offer flexible undervoltage threshold setting with external resistors. TPS3842-Q1 offers capacitor programmable de-glitch on the SENSE with the CTS pin and capacitor programmable reset delay timing with the CTR pin.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Neueste englische Version herunterladen	Datum
*	Datenblatt	TPS3842-Q1 Automotive 42V Small Size, 850nA Undervoltage or Overvoltage Supervisor With Programmable Delay and De-Glitch datasheet (Rev. B)	PDF \| HTML		01.10.2025
	Informationen zur funktionalen Sicherheit	TPS3842-Q1 Functional Safety FIT Rate, Failure Mode Distribution	PDF \| HTML		26.08.2025

Design und Entwicklung

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Evaluierungsplatine

TPS3842EVM — TPS3842 – Evaluierungsmodul

Das TPS3842EVM ist ein Evaluierungsmodul (EVM) für die Spannungsüberwachungsgeräte der TPS3842-Q1- und TPS3842-Familie. Dieses EVM bietet ein Musterdesign und einen Testpunkt für alle Eingangs- und Ausgangspins des Bausteins TPS3842 und TPS3842-Q1, um die Messungen zu erfassen und sich mit dem (...)

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