TPS3820-Q1

Name: TPS3820-Q1
Brand: TI
SKU: TPS3820-Q1
Price: 0.422 USD

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Spannungsüberwacher (Reset-IC), Active-Low, Push-Pull, für die Automobilindustrie, mit 0,2-s-Watchdo

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Datenblatt

document-pdfAcrobat TPS382x-xx-Q1 Voltage Monitor With Watchdog Timer datasheet (Rev. D) (Englisch) PDF | HTML

TPS3820-Q1

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Datenblatt

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Produktdetails

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

2.93, 4.55

Features

Manual reset capable, Undervoltage monitor only, Watchdog timer

Reset threshold accuracy (%)

2.4

Iq (typ) (mA)

0.015

Output driver type/reset output

Active-low, Push-Pull

Time delay (ms)

25

Supply voltage (min) (V)

1.1

Supply voltage (max) (V)

5.5

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Watchdog timer WDI (s)

0.2

Operating temperature range (°C)

-40 to 125

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

2.93, 4.55

Features

Manual reset capable, Undervoltage monitor only, Watchdog timer

Reset threshold accuracy (%)

2.4

Iq (typ) (mA)

0.015

Output driver type/reset output

Active-low, Push-Pull

Time delay (ms)

25

Supply voltage (min) (V)

1.1

Supply voltage (max) (V)

5.5

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Watchdog timer WDI (s)

0.2

Operating temperature range (°C)

-40 to 125

SOT-23 (DBV)

5

8.12 mm² 2.9 x 2.8

Qualified for automotive applications
AEC-Q100 Qualified With the Following Results:
- Device temperature grade 1: –40°C to 125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
ESD protection exceeds 2000 V Per MIL-STD-883, Method 3015; using human body model (C = 100 pF, R = 1500 Ω)
Power-on reset generator with fixed delay time of 200 ms (TPS3823/4/5/8-xx-Q1) or 25 ms (TPS3820-xx-Q1)
Manual reset input (TPS3820/3/5/8-xx-Q1)
Reset output available in active-low (TPS3820/3/4/5-xx-Q1), Active-High (TPS3824/5-xx-Q1), and open drain (TPS3828-xx-Q1)
Supply voltage supervision range:
2.5 V, 3 V, 3.3 V, 5 V
Watchdog timer (TPS3820/3/4/8-xx-Q1)
Supply current of 15 µA (Typical)
5-Pin SOT-23 package
Temperature range: −40°C to 125°C

Qualified for automotive applications
AEC-Q100 Qualified With the Following Results:
- Device temperature grade 1: –40°C to 125°C
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
ESD protection exceeds 2000 V Per MIL-STD-883, Method 3015; using human body model (C = 100 pF, R = 1500 Ω)
Power-on reset generator with fixed delay time of 200 ms (TPS3823/4/5/8-xx-Q1) or 25 ms (TPS3820-xx-Q1)
Manual reset input (TPS3820/3/5/8-xx-Q1)
Reset output available in active-low (TPS3820/3/4/5-xx-Q1), Active-High (TPS3824/5-xx-Q1), and open drain (TPS3828-xx-Q1)
Supply voltage supervision range:
2.5 V, 3 V, 3.3 V, 5 V
Watchdog timer (TPS3820/3/4/8-xx-Q1)
Supply current of 15 µA (Typical)
5-Pin SOT-23 package
Temperature range: −40°C to 125°C

For all new designs with TPS3820-xx-Q1, use the TPS3820-xxQPDBVRQ1 part number. The TPS3820-xxQP is functionally equivalent and a replacement to the TPS3820xxQ. The TPS3820-xxQDBVRQ1 is not recommended for new designs (NRND).

The TPS382x-xx-Q1 family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage V_DD becomes greater than 1.1 V. Thereafter, the supply voltage supervisor monitors V_DD and keeps RESET active low as long as V_DD remains below the threshold voltage, V_IT−. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, t_d, starts after V_DD has risen above the threshold voltage V_IT−. When the supply voltage drops below the threshold voltage V_IT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, V_IT–, set by an internal voltage divider. The TPS382x-xx-Q1 family also offers watchdog time out options of 200 ms (TPS3820-xx-Q1) and 1.6 s (TPS3823/4/8-xx-Q1).

For all new designs with TPS3820-xx-Q1, use the TPS3820-xxQPDBVRQ1 part number. The TPS3820-xxQP is functionally equivalent and a replacement to the TPS3820xxQ. The TPS3820-xxQDBVRQ1 is not recommended for new designs (NRND).

The TPS382x-xx-Q1 family of supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. During power on, RESET asserts when the supply voltage V_DD becomes greater than 1.1 V. Thereafter, the supply voltage supervisor monitors V_DD and keeps RESET active low as long as V_DD remains below the threshold voltage, V_IT−. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time, t_d, starts after V_DD has risen above the threshold voltage V_IT−. When the supply voltage drops below the threshold voltage V_IT−, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage, V_IT–, set by an internal voltage divider. The TPS382x-xx-Q1 family also offers watchdog time out options of 200 ms (TPS3820-xx-Q1) and 1.6 s (TPS3823/4/8-xx-Q1).

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Spezieller Hinweis

Verwenden Sie für alle neuen Designs die TPS3820-33QPDBVRQ1 und TPS3820-50QPDBVRQ1 auf dem Reiter Jetzt bestellen. TPS3820-xxQP ist funktional gleichwertig mit dem TPS3820xxQ und ersetzt dieses.

The TPS382-Q1EVM evaluation module (EVM) has five different TPS382x-Q1 devices to let you evaluate and test the different features of the product family. The EVM includes devices with 2.5-V, 3-V, 3.3-V and 5-V fixed monitoring, watchdog input, manual reset, (...)

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Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

	Typ	Titel		Datum
*	Data sheet	TPS382x-xx-Q1 Voltage Monitor With Watchdog Timer datasheet (Rev. D)	PDF \| HTML	17 Jul 2019
	Application note	Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A)		17 Mär 2020
	Functional safety information	TPS382x-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
	Application brief	Latching a Voltage Supervisor (Reset IC) (Rev. A)		05 Apr 2019
	Application note	Disabling the Watchdog Timer for TI's Family of Supervisors		30 Okt 2003

TPS3820-Q1

Spannungsüberwacher (Reset-IC), Active-Low, Push-Pull, für die Automobilindustrie, mit 0,2-s-Watchdo

TPS3820-Q1

Produktdetails

Spezieller Hinweis

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