TPS3852-Q1

AKTIV

Hochpräziser Spannungsüberwacher mit integriertem Fenster-Watchdog-Timer für die Automobilindustr

Jetzt bestellen

Datenblatt

document-pdfAcrobat TPS3852-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet (Englisch) PDF | HTML

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TPS36-Q1

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

TPS3852-Q1

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Automotive

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

1.8, 3.3

Features

Manual reset capable, Reset time delay, Timeout watchdog, Undervoltage monitor only, Watchdog disable, Watchdog timer, Window watchdog

Reset threshold accuracy (%)

0.8

Iq (typ) (mA)

0.01

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

200

Watchdog timer WDI (s)

Programmable

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

Rating

Automotive

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

1.8, 3.3

Features

Manual reset capable, Reset time delay, Timeout watchdog, Undervoltage monitor only, Watchdog disable, Watchdog timer, Window watchdog

Reset threshold accuracy (%)

0.8

Iq (typ) (mA)

0.01

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

200

Watchdog timer WDI (s)

Programmable

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

VSON (DRB)

8

9 mm² (3 mm × 3 mm)

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
V_DD Input Voltage Range: 1.6 V to 6.5 V
0.8% Voltage Threshold Accuracy
Low Supply Current: I_DD = 10 µA (typ)
User-Programmable Watchdog Timeout
Factory-Programmed Precision Watchdog and Reset Timers:
- ±15% Accurate WDT and RST Delays
Open-Drain Outputs
Manual Reset Input (MR)
Precision Voltage Monitoring:
- Supports Common Rails from 1.8 V to 5.0 V
- 4% and 7% 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
V_DD Input Voltage Range: 1.6 V to 6.5 V
0.8% Voltage Threshold Accuracy
Low Supply Current: I_DD = 10 µA (typ)
User-Programmable Watchdog Timeout
Factory-Programmed Precision Watchdog and Reset Timers:
- ±15% Accurate WDT and RST Delays
Open-Drain Outputs
Manual Reset Input (MR)
Precision Voltage Monitoring:
- Supports Common Rails from 1.8 V to 5.0 V
- 4% and 7% Thresholds Available
- 0.5% Hysteresis
Watchdog Disable Feature
Available in a Small 3-mm × 3-mm, 8-Pin VSON Package

The TPS3852-Q1 is a precision voltage supervisor with an integrated window watchdog timer. The TPS3852-Q1 includes a precision undervoltage supervisor with an undervoltage threshold (V_ITN) that achieves 0.8% accuracy over the specified temperature range of –40°C to +125°C. In addition, the TPS3852-Q1 includes accurate hysteresis making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timer.

The TPS3852-Q1 includes a programmable window 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 to avoid undesired watchdog timeouts during the development process.

The TPS3852-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3852-Q1 features wettable flanks that allow for easy optical inspection.

The TPS3852-Q1 is a precision voltage supervisor with an integrated window watchdog timer. The TPS3852-Q1 includes a precision undervoltage supervisor with an undervoltage threshold (V_ITN) that achieves 0.8% accuracy over the specified temperature range of –40°C to +125°C. In addition, the TPS3852-Q1 includes accurate hysteresis making the device ideal for use with tight tolerance systems. The supervisor RESET delay features a 15% accuracy, high-precision delay timer.

The TPS3852-Q1 includes a programmable window 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 to avoid undesired watchdog timeouts during the development process.

The TPS3852-Q1 is available in a small 3.00-mm × 3.00-mm, 8-pin VSON package. The TPS3852-Q1 features wettable flanks that allow for easy optical inspection.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPS3852-Q1 High-Accuracy Voltage Supervisor with Integrated Watchdog Timer datasheet	PDF \| HTML	22.02.2017
	Informationen zur funktionalen Sicherheit	TPS3852-Q1 Functional Safety FIT Rate and Failure Mode Distribution		18.12.2019
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28.06.2019

Design und Entwicklung

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