TPS3823-25 Status: ACTIVE

Supply Voltage Supervisor w/Watchdog input and manual reset

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Datasheet

Processor Supervisory Circuits (Rev. G) (PDF 425 KB)
24 Jan 2008

	TPS3823-25	TPS3823-30	TPS3823-33	TPS3823-50
No. of Supervisors	1	1	1	1
Vit1(Typ)(V)	2.25	2.63	2.93	4.55
Reset Threshold Accuracy(%)	2.2	2.3	2.4	2
Time Delay(ms)	200	200	200	200
IDD(Typ)(uA)	15	15	15	15
Pin/Package	5SOT-23	5SOT-23	5SOT-23	5SOT-23
Rating	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Other qualified versions of TPS3823-25

Version	Part Number	Definition
Automotive	TPS3823-25-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects

Customers Who Evaluated This Product Also Evaluated

TPS3823-33: Supply Voltage Supervisor w/Watchdog input and manual reset
TPS3813J25: Supervisors with Programmable Watchdog Window
TPS2065: Single 1A Current-Limited, Power-Distribution Switches for USB Applications
TPS2553: Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch
BQ29412: Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.45V)

Product Information

Features

Power-On Reset Generator With Fixed Delay Time of 200 ms (TPS3823/4/5/8) or 25 ms (TPS3820)
Manual Reset Input (TPS3820/3/5/8)
Reset Output Available in Active-Low (TPS3820/3/4/5), Active-High (TPS3824) and Open-Drain (TPS3828)
Supply Voltage Supervision Range
2.5 V, 3 V, 3.3 V, 5 V
Watchdog Timer (TPS3820/3/4/8)
Supply Current of 15 µA (Typ)
SOT23-5 Package
Temperature Range: –40°C to +85°C
APPLICATIONS
- Applications Using DSPs, Microcontrollers, or Microprocessors
- Industrial Equipment
- Programmable Controls
- Automotive Systems
- Portable/Battery-Powered Equipment
- Intelligent Instruments
- Wireless Communications Systems
- Notebook/Desktop Computers

All trademarks are the property of their respective owners.

Description

The TPS382x family of supervisors provides circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET is asserted when supply voltage V_DD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors V_DD and keeps RESET active 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.

View All Description in Datasheet

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TPS3823-25DBVR	ACTIVE	-40 to 85	0.75 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TPS3823-25DBVRG4	ACTIVE	-40 to 85	0.75 \| 1ku	SOT-23 (DBV) \| 5	View	3000 \| LARGE T&R
TPS3823-25DBVT	ACTIVE		0.80 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples
TPS3823-25DBVTG4	ACTIVE		0.80 \| 1ku	SOT-23 (DBV) \| 5	View	250 \| SMALL T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:14 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS3823-25DBVR
Americas	Newark	>1k
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	33
Europe	Compel	>1k
Europe	Farnell	33
Worldwide	DigiKey	925
TI Lead Time*: 20 WeeksTPS3823-25DBVRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS3823-25DBVT
Americas	Rochester Electronics	850
Europe	Arrow Northern Europe	750
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	134
TI Lead Time*: 20 WeeksTPS3823-25DBVTG4
Europe	EBV Elektronik	129
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TPS3823-25DBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3823-25DBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3823-25DBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3823-25DBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPS3823-25

Datasheet

Processor Supervisory Circuits (Rev. G) (PDF, 425 KB)
24 Jan 2008

Application Notes

Power Supply Sequencing Solutions for Dual Supply Voltage DSPs (Rev. A) (HTM, 8 KB) 4617 views
05 Jul 2000 Read Abstract
Disabling the Watchdog Timer for TI's Family of Supervisors (HTM, 8 KB) 1917 views
30 Oct 2003 Read Abstract
TPS382x Microprocessor Supervisory Circuits with Watchdog Function (HTM, 8 KB) 777 views
10 Aug 1998 Read Abstract

View Application Notes for Supervisory Circuits(Voltage Supervisors)

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS3823-33	Supply Voltage Supervisor w/Watchdog input and manual reset	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS3813J25	Supervisors with Programmable Watchdog Window	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS2065	Single 1A Current-Limited, Power-Distribution Switches for USB Applications	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TPS2553	Adjustable, Active High, Constant-Current, Current-Limited Power-Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
BQ29412	Secondary Over-Voltage Protection for 2-4 cell in series Li-Ion/Poly (4.45V)	BATTERY MANAGEMENT-LITHIUM ION PROTECTION	TI customers also evaluated this product.
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BQ27210	Li-Ion and Li-Pol Battery Gas Gauge IC for Portable Applications (bqJUNIOR)	BATTERY MANAGEMENT-BATTERY FUEL GAUGES	TI customers also evaluated this product.
BQ24005	Linear 2-cell Li-Ion Battery Charger w/Integrated FET, Two LED	BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT	TI customers also evaluated this product.
TPS61020	Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.
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TPS3823-25 Status: ACTIVE

Supply Voltage Supervisor w/Watchdog input and manual reset

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