TPS3851-Q1

Name: TPS3851-Q1
Brand: TI
SKU: TPS3851-Q1
Price: 0.742 USD

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Hochgenauer Spannungsüberwacher mit integriertem Watchdog-Timer, für die Automobilindustrie

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Datenblatt

document-pdfAcrobat TPS3851-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet (Rev. A) (Englisch) PDF | HTML

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Alternativen vergleichen

Gleiche Funktionalität, andere Pinbelegung als verglichener Baustein

NEU TPS35-Q1

AKTIV

Präzisionsüberwacher mit Nano-Ruhestrom und Watchdog-Timer für die Automobilindustrie 250-nA quiescent current, with enhanced watchdog accuracy, compact packaging and on-the-fly programming

TPS3851-Q1

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

1.8, 2.5, 3, 3.3, 5

Features

Manual reset capable, Timeout watchdog, Undervoltage monitor only, Watchdog disable, Watchdog timer

Reset threshold accuracy (%)

0.8

Iq (typ) (mA)

0.01

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

200

Supply voltage (min) (V)

1.6

Supply voltage (max) (V)

6.5

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Watchdog timer WDI (s)

Programmable

Operating temperature range (°C)

-40 to 125

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

1.8, 2.5, 3, 3.3, 5

Features

Manual reset capable, Timeout watchdog, Undervoltage monitor only, Watchdog disable, Watchdog timer

Reset threshold accuracy (%)

0.8

Iq (typ) (mA)

0.01

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

200

Supply voltage (min) (V)

1.6

Supply voltage (max) (V)

6.5

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Watchdog timer WDI (s)

Programmable

Operating temperature range (°C)

-40 to 125

VSON (DRB)

8

9 mm² 3 x 3

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Functional Safety-capable
- Documentation available to aid functional safety system design
Input voltage range: V_DD = 1.6 V to 6.5 V
0.8% Voltage threshold accuracy
Low supply current: I_DD = 10 µA (typical)
User-programmable watchdog timeout
Factory programmed precision watchdog and reset timers:
Manual reset input (MR)
Open-drain outputs
Precision undervoltage monitoring:
- Supports common rails from 1.8 V to 5.0 V
- 4% and 7% undervoltage thresholds available
- 0.5% Hysteresis
Watchdog disable feature
Available in a small 3-mm × 3-mm, 8-Pin VSON package

AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Functional Safety-capable
- Documentation available to aid functional safety system design
Input voltage range: V_DD = 1.6 V to 6.5 V
0.8% Voltage threshold accuracy
Low supply current: I_DD = 10 µA (typical)
User-programmable watchdog timeout
Factory programmed precision watchdog and reset timers:
Manual reset input (MR)
Open-drain outputs
Precision undervoltage monitoring:
- Supports common rails from 1.8 V to 5.0 V
- 4% and 7% undervoltage thresholds available
- 0.5% Hysteresis
Watchdog disable feature
Available in a small 3-mm × 3-mm, 8-Pin VSON package

The TPS3851-Q1 device combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851-Q1 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (V_ITN) threshold on the VDD pin. The TPS3851-Q1 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timing.

The TPS3851-Q1 includes a programmable watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process.

The TPS3851-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3851-Q1 features wettable flanks that allow for easy optical inspection.

The TPS3851-Q1 device combines a precision voltage supervisor with a programmable watchdog timer. The TPS3851-Q1 comparator achieves a 0.8% accuracy (–40°C to +125°C) for the undervoltage (V_ITN) threshold on the VDD pin. The TPS3851-Q1 also includes accurate hysteresis on the undervoltage threshold making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timing.

The TPS3851-Q1 includes a programmable watchdog timer for a wide variety of applications. The dedicated watchdog output (WDO) enables increased resolution to help determine the nature of fault conditions. The watchdog timeouts can be programmed either by an external capacitor, or by factory-programmed default delay settings. The watchdog can be disabled via logic pins to avoid undesired watchdog timeouts during the development process.

The TPS3851-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3851-Q1 features wettable flanks that allow for easy optical inspection.

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Gehäuse	Pins	Herunterladen
VSON (DRB)	8	Optionen anzeigen

Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

	Typ	Titel		Datum
*	Data sheet	TPS3851-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet (Rev. A)	PDF \| HTML	23 Sep 2021
	Functional safety information	TPS3851-Q1 Functional Safety FIT Rate and Failure Mode Distribution		19 Dez 2019
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28 Jun 2019

TPS3851-Q1

Hochgenauer Spannungsüberwacher mit integriertem Watchdog-Timer, für die Automobilindustrie

Eine neuere Version dieses Produkts ist verfügbar

Gleiche Funktionalität, andere Pinbelegung als verglichener Baustein

TPS3851-Q1

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