TPS2042B Status: ACTIVE

Dual, Current-Limited, Power-Distribution Switches

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Datasheet

Current-Limited, Power-Distribution Switches (Rev. J) (PDF 1769 KB)
02 Dec 2008

	TPS2041B	TPS2042B	TPS2043B	TPS2044B
Vin(Min)(V)	2.7	2.7	2.7	2.7
Vin(Max)(V)	5.5	5.5	5.5	5.5
Current Limit(A)	1	1	1	1
rDS(on) per FET(Typ)(mOhms)	70	70	70	70
Pin/Package	5SOT-23, 8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC, 8SON	16SOIC	16SOIC
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Continuous Current(Max)(A)	0.5	0.5	0.5	0.5
Number of Switches	1	2	3	4
Enable	Active Low	Active Low	Active Low	Active Low
Rating	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Other qualified versions of TPS2042B

Version	Part Number	Definition
Automotive	TPS2042B-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects

Customers Who Evaluated This Product Also Evaluated

TPS2041B: Single-Channel Current-Limited Power Distribution Switch
TPS40210: Wide Input Range Current Mode Boost Controller
TPS62400: Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN
TPS65023: 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs

Product Information

Features

70-mΩ High-SideMOSFET
500-mA Continuous Current
Thermal and Short-Circuit Protection
Accurate Current Limit
(0.75 A min, 1.25 A max)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current:
1-µA (Single, Dual) or 2-µA (Triple, Quad)
Ambient Temperature Range: -40°C to 85°C
UL Recognized, File Number E169910
Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
APPLICATIONS
- Heavy Capacitive Loads
- Short-Circuit Protections

Description

The TPS204xB/TPS205xB power-distribution switches areintended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A typically.

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
TPS2042BD	ACTIVE	-40 to 85	0.80 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TPS2042BDG4	ACTIVE	-40 to 85	0.80 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
TPS2042BDGN	ACTIVE	-40 to 85	0.90 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
TPS2042BDGNG4	ACTIVE	-40 to 85	0.90 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
TPS2042BDGNR	ACTIVE	-40 to 85	0.80 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS2042BDGNRG4	ACTIVE	-40 to 85	0.80 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS2042BDR	ACTIVE	-40 to 85	0.70 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R
TPS2042BDRBR	ACTIVE	-40 to 85	0.70 \| 1ku	SON (DRB) \| 8	View	3000 \| LARGE T&R			Purchase Samples
TPS2042BDRBT	ACTIVE	-40 to 85	0.80 \| 1ku	SON (DRB) \| 8	View	250 \| SMALL T&R
TPS2042BDRG4	ACTIVE	-40 to 85	0.70 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R

* 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 10:09 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS2042BD
Americas	Newark	30
Asia	Farnell Asia	791
Europe	Arrow Northern Europe	175
	Compel	14
	Farnell	788
	Spoerle	150
TI Lead Time*: 20 WeeksTPS2042BDG4
Americas	Avnet	155
Europe	EBV Elektronik	>1k
TI Lead Time*: 4 WeeksTPS2042BDGN
Americas	Avnet	54
Americas	Rochester Electronics	>1k
Asia	WPI	101
Europe	Avnet-SILICA	>1k
Europe	Spoerle	960
Worldwide	DigiKey	291
Worldwide	Mouser Electronics	235
TI Lead Time*: 4 WeeksTPS2042BDGNG4
Americas	Avnet	263
Europe	EBV Elektronik	80
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	255
TI Lead Time*: 4 WeeksTPS2042BDGNR
Americas	Arrow	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS2042BDGNRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS2042BDR
Americas	Arrow	>1k
Asia	WPI	909
Asia	Wintech	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksTPS2042BDRBR
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS2042BDRBT
Worldwide	DigiKey	116
TI Lead Time*: 20 WeeksTPS2042BDRG4
None Reported View Distributors
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
TPS2042BD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDRBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDRBT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS2042BDRG4	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 TPS2042B

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS2042B Evaluation Module	TPS2042BEVM-293	Texas Instruments	Development Boards/EVMs
TPS2042B Evaluation Module	TPS2042BEVM-296	Texas Instruments	Development Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS2041B	Single-Channel Current-Limited Power Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
TPS40210	Wide Input Range Current Mode Boost Controller	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.
TPS62400	Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS65023	6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
UCC28600	8-Pin Quasi Resonant Flyback Green Mode Controller	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
TPS51100	3A Source/Sink DDR terminator Regulator	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
TPS61175	3-A High Voltage Boost Converter with Soft-start and Programmable Switching Frequency	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	TI customers also evaluated this product.
TPS650243	Power Management ICs for Li-Ion Powered Systems	POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER	TI customers also evaluated this product.
TLV1117-33	Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TLV431A	Low Voltage Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.
TL431A	Adjustable Precision Shunt Regulator	VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE	TI customers also evaluated this product.

All End-Equipment

TPS2042B Status: ACTIVE

Dual, Current-Limited, Power-Distribution Switches

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