TPS3705-33 Status: ACTIVE

Processor Supervisory Circuits with Power-Fail

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Datasheet

Processor Supervisory Circuits with Power-Fail (Rev. C) (PDF 877 KB)
30 Dec 2005

	TPS3705-30	TPS3705-33	TPS3705-50	TPS3707-25	TPS3707-30	TPS3707-33	TPS3707-50
No. of Supervisors	2	2	2	2	2	2	2
Vit1(Typ)(V)	2.63	2.93	4.55	2.25	2.63	2.93	4.55
Vit2(Typ)(V)	Adj	Adj	Adj	Adj	Adj	Adj	Adj
Reset Threshold Accuracy(%)	2.1	1.9	2	2.2	2.1	1.9	2
Time Delay(ms)	200	200	200	200	200	200	200
IDD(Typ)(uA)	30	30	30	20	20	20	20
Pin/Package	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS3808G01: Low Quiescent Current, Programmable-Delay Supervisory Circuit
TPS3707-33: Processor Supervisory Circuits with Power-Fail
TPS3808G09: Low Quiescent Current, Programmable-Delay Supervisory Circuit
TPS76333: Single Output LDO, 150mA, Fixed(3.3V), Low Quiescent Current, Thermal Protection
TL431: Adjustable Precision Shunt Regulator
TPS54331: 3A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-mode ™

Product Information

Features

Power-On Reset Generator with Fixed Delay Time of 200 ms, no External Capacitor Needed
Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, and 5 V
Pin-For-Pin Compatible with the MAX705 through MAX708 Series
Integrated Watchdog Timer (TPS3705 only)
Voltage Monitor for Power-Fail or Low-Battery Warning
Maximum Supply Current of 50 µA
MSOP-8 and SO-8 Packages
Temperature Range . . . –40°C to 85°C

typical applications

Designs Using DSPs, Microcontrollers or Microprocessors
Industrial Equipment
Programmable Controls
Automotive Systems
Portable/Battery Powered Equipment
Intelligent Instruments
Wireless Communication Systems
Notebook/Desktop Computers

Description

The TPS3705, TPS3707 family of microprocessor supply-voltage supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET\ is asserted when the 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_dtyp = 200 ms, 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.

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
TPS3705-33D	ACTIVE	-40 to 85	0.95 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
TPS3705-33DG4	ACTIVE	-40 to 85	0.95 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
TPS3705-33DGN	ACTIVE	-40 to 85	0.95 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
TPS3705-33DGNG4	ACTIVE	-40 to 85	0.95 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
TPS3705-33DGNR	ACTIVE	-40 to 85	0.85 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R
TPS3705-33DGNRG4	ACTIVE	-40 to 85	0.85 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R
TPS3705-33DR	ACTIVE	-40 to 85	0.85 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS3705-33DRG4	ACTIVE	-40 to 85	0.85 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE 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 WeeksTPS3705-33D
Americas	Rochester Electronics	>1k
Europe	Compel	408
Europe	EBV Elektronik	3
Worldwide	DigiKey	413
TI Lead Time*: 20 WeeksTPS3705-33DG4
Europe	EBV Elektronik	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTPS3705-33DGN
Americas	Rochester Electronics	736
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTPS3705-33DGNG4
Europe	EBV Elektronik	40
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS3705-33DGNR
Americas	Avnet	>1k
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	93
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksTPS3705-33DGNRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS3705-33DR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS3705-33DRG4
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
TPS3705-33D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS3705-33DRG4	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 TPS3705-33

Datasheet

Processor Supervisory Circuits with Power-Fail (Rev. C) (PDF, 877 KB)
30 Dec 2005

Application Notes

Disabling the Watchdog Timer for TI's Family of Supervisors (HTM, 8 KB) 1917 views
30 Oct 2003 Read Abstract
TPS370x Family Application Report (HTM, 8 KB) 532 views
24 Nov 1998 Read Abstract
Reset Circuit for the TMS320C6000 DSP (Rev. A) (HTM, 9 KB) 2434 views
10 Jun 1999 Read Abstract

View Application Notes for Supervisory Circuits(Voltage Supervisors)

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
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TPS3707-33	Processor Supervisory Circuits with Power-Fail	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS3808G09	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
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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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TPS3705-33 Status: ACTIVE

Processor Supervisory Circuits with Power-Fail

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