TPS3808-EP

Name: TPS3808-EP
Brand: TI
SKU: TPS3808-EP
Price: 2.051 USD

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Datenblatt

document-pdfAcrobat TPS3808-EP Low Quiescent Current, Programmable Delay Supervisory Circuit datasheet (Rev. D) (Englisch) PDF | HTML

TPS3808-EP

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Datenblatt

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Produktdetails

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.405, 3.07

Features

Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

0.5

Iq (typ) (mA)

0.0024

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

1.25, 20, 300, 1200

Supply voltage (min) (V)

1.7, 1.8

Supply voltage (max) (V)

6.5

Rating

HiRel Enhanced Product

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-55 to 125

Number of supplies monitored

1

Threshold voltage 1 (typ) (V)

0.405, 3.07

Features

Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

0.5

Iq (typ) (mA)

0.0024

Output driver type/reset output

Active-low, Open-drain

Time delay (ms)

1.25, 20, 300, 1200

Supply voltage (min) (V)

1.7, 1.8

Supply voltage (max) (V)

6.5

Rating

HiRel Enhanced Product

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-55 to 125

SOT-23 (DBV)

6

8.12 mm² 2.9 x 2.8

Controlled Baseline
- One Assembly Site
- One Test Site
- One Fabrication Site
Extended Temperature Performance of
–55°C to 125°C
Enhanced Diminishing Manufacturing Sources
(DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree¹
Power-On Reset Generator With Adjustable
Delay Time: 1.25 ms to 10 s
Very Low Quiescent Current: 2.4 µA Typical
High Threshold Accuracy: 0.5% Typical
Fixed Threshold Voltages for Standard Voltage
Rails From 0.9 V to 5 V and Adjustable Voltage
Down to 0.4 V Are Available
Manual Reset (MR) Input
Open-Drain RESET Output
Temperature Range: –55°C to 125°C
Small SOT-23 Package

Controlled Baseline
- One Assembly Site
- One Test Site
- One Fabrication Site
Extended Temperature Performance of
–55°C to 125°C
Enhanced Diminishing Manufacturing Sources
(DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree¹
Power-On Reset Generator With Adjustable
Delay Time: 1.25 ms to 10 s
Very Low Quiescent Current: 2.4 µA Typical
High Threshold Accuracy: 0.5% Typical
Fixed Threshold Voltages for Standard Voltage
Rails From 0.9 V to 5 V and Adjustable Voltage
Down to 0.4 V Are Available
Manual Reset (MR) Input
Open-Drain RESET Output
Temperature Range: –55°C to 125°C
Small SOT-23 Package

The TPS3808xxx family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5.0 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.

The TPS3808 uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in a small SOT-23 package, and is fully specified over a temperature range of –55°C to +125°C (T_J).

The TPS3808xxx family of microprocessor supervisory circuits monitors system voltages from 0.4 V to 5.0 V, asserting an open-drain RESET signal when the SENSE voltage drops below a preset threshold or when the manual reset (MR) pin drops to a logic low. The RESET output remains low for the user-adjustable delay time after the SENSE voltage and manual reset (MR) return above the respective thresholds.

The TPS3808 uses a precision reference to achieve 0.5% threshold accuracy for V_IT ≤ 3.3 V. The reset delay time can be set to 20 ms by disconnecting the C_T pin, 300 ms by connecting the C_T pin to V_DD using a resistor, or can be user-adjusted between 1.25 ms and 10 s by connecting the C_T pin to an external capacitor. The TPS3808 has a very low typical quiescent current of 2.4 µA, so it is well-suited to battery-powered applications. It is available in a small SOT-23 package, and is fully specified over a temperature range of –55°C to +125°C (T_J).

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Alle anzeigen 6

	Typ	Titel		Datum
*	Data sheet	TPS3808-EP Low Quiescent Current, Programmable Delay Supervisory Circuit datasheet (Rev. D)	PDF \| HTML	24 Dez 2014
*	Radiation & reliability report	TPS3808-EP Reliability Report (Rev. A)		18 Jun 2018
*	VID	TPS3808-EP VID V6208607		21 Jun 2016
	Application note	Optimizing Resistor Dividers at a Comparator (Rev. B)	PDF \| HTML	30 Apr 2021
	E-book	Voltage Supervisor and Reset ICs: Tips, Tricks and Basics		28 Jun 2019
	Application note	Adding Hysteresis to Supply Voltage Supervisor		19 Aug 2009

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TPS3808-EP

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