Datasheet

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FEATURES

DESCRIPTION

APPLICATIONS

* USB Requirement that downstream-facing ports

are bypassed with at least 120 F per hubm

FAULT

OUT

ILIM

GND

PowerPAD

USBData

USB

Port

120 F*m

15k

ILIM

0.1 Fm

100k

FAULT

INPUT

5VUSB

ControlSignal

TPS2550/51

FAULT Signal

OUT

GND

ILIM

FAULT

TPS2550/TPS2551

DBVPACKAGE

(TOP VIEW)

TPS2550/TPS2551

DRVPACKAGE

(TOP VIEW)

OUT

GND

ILIM

FAULT

PAD

EN= ActiveLowfortheTPS2550

EN= ActiveHighfortheTPS2551

TPS2014600mA

TPS20151 A

TPS2041B500mA

TPS2051B500mA

TPS2045A 250mA

TPS2049100mA

TPS2055A 250mA

TPS20611 A

TPS20651 A

TPS20681.5 A

TPS20691.5 A

TPS2042B500mA

TPS2052B500mA

TPS2046B250mA

TPS2056250mA

TPS20621 A

TPS20661 A

TPS20601.5 A

TPS20641.5 A

TPS2080500mA

TPS2081500mA

TPS2082500mA

TPS2090250mA

TPS2091250mA

TPS2092250mA

TPS2043B500mA

TPS2053B500mA

TPS2047B250mA

TPS2057A 250mA

TPS20631 A

TPS20671 A

TPS2044B500mA

TPS2054B500mA

TPS2048A 250mA

TPS2058250mA

TPS2085500mA

TPS2086500mA

TPS2087500mA

TPS2095250mA

TPS2096250mA

TPS2097250mA

TPS201xA 0.2 A to2 A

TPS202x0.2 A to2 A

TPS203x0.2 A to2 A

GENERAL SWITCHCATALOG

33m ,SingleW 80m ,SingleW

80m ,DualW 80m ,DualW

80m , TripleW

80m ,QuadW 80m ,QuadW

TPS2550

TPS2551

www.ti.com

........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008

ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

• Adjustable Current-Limit, 100 mA – 1100 mA

• Fast Overcurrent Response - 2 µ S Typical

The TPS2550/51 power-distribution switch is

intended for applications where heavy capacitive

• 85-m Ω High-Side MOSFET (DBV Package)

loads and short-circuits are likely to be encountered,

• Reverse Input-Output Voltage Protection

incorporating a 100-m Ω , N-channel MOSFET in a

• Operating Range: 2.5 V to 6.5 V

single package. The current-limit threshold is user

adjustable between 100 mA and 1.1 A via an external

• Deglitched Fault Report

resistor. The power-switch rise and fall times are

• 1- µ A Maximum Standby Supply Current

controlled to minimize current surges during

• Junction Temperature Range: – 40 ° C to 125 ° C

switching.

• Built-in Soft-Start

The device limits the output current to a desired level

• 15 kV ESD Protection (with external

by switching into a constant-current mode when the

capacitance) output load exceeds the current-limit threshold or a

short is present. An internal reverse-voltage detection

• UL Listed – File No. E169910

comparator disables the power-switch in the event

• Current-Limit Resistor Calculator – SLVC163

that the output voltage is driven higher than the input

to protect devices on the input side of the switch. The

FAULT logic output asserts low during both

overcurrent and reverse-voltage conditions.

• USB Ports/Hubs

• Cell phones

• Laptops

• Heavy Capacitive Loads

• Reverse-Voltage Protection

Figure 1. Typical Application as USB Power

Switch

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2 PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (32 pages)

PAGE 1
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES FEATURES 1 • • • • • • • • • • 2 • • DESCRIPTION Adjustable Current-Limit, 100 mA–1100 mA Fast Overcurrent Response - 2 µS Typical 85-mΩ High-Side MOSFET (DBV Package) Reverse Input-Output Voltage Protection Operating Range: 2.5 V to 6.
PAGE 2
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields.
PAGE 3
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 RECOMMENDED OPERATING CONDITIONS VIN Input voltage, IN VEN V/EN Enable voltage MIN MAX 2.5 6.5 TPS2550 0 6.5 TPS2551 0 6.
PAGE 4
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com ELECTRICAL CHARACTERISTICS (continued) over recommended operating junction temperature range, 2.5 V ≤ VIN ≤ 6.5 V, RILIM = 14.3 kΩ, V/EN = 0 V, or VEN = 5.0 V (unless otherwise noted) TEST CONDITIONS (1) PARAMETER MIN TYP MAX 2.35 2.
PAGE 5
TPS2550 TPS2551 www.ti.com ........................................................................................................................................
PAGE 6
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com PARAMETER MEASUREMENT INFORMATION OUT tf tr RL CL 90% VOUT 10% 90% 10% TEST CIRCUIT 50% VEN VEN 50% toff ton VOUT 50% 50% toff ton 90% 90% VOUT 10% 10% VOLTAGE WAVEFORMS Figure 2. Test Circuit and Voltage Waveforms IOS IOUT tIOS Figure 3.
PAGE 7
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 TYPICAL CHARACTERISTICS Figure 5. Turnon Delay and Rise Time Figure 6.
PAGE 8
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 7. Device Enabled into Short-Circuit Figure 8.
PAGE 9
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 TYPICAL CHARACTERISTICS (continued) Figure 9. Short-Circuit to Full-Load Recovery Response Figure 10.
PAGE 10
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 11. Short-Circuit to No-Load Recovery Response Figure 12.
PAGE 11
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 TYPICAL CHARACTERISTICS (continued) Figure 13. 1Ω to No Load Transient Response Figure 14.
PAGE 12
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 15. Reverse-Voltage Protection Recovery 2.40 UVLO - Undervoltage Lockout - V 2.39 2.38 2.37 UVLO Rising 2.36 2.35 2.34 UVLO Falling 2.33 2.32 2.31 2.30 -50 0 50 100 150 TJ - Junction Temperature - °C Figure 16.
PAGE 13
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 TYPICAL CHARACTERISTICS (continued) 0.50 VIN = 6.5 V IIN - Supply Current, Output Disabled - mA 0.45 0.40 VIN = 5 V 0.35 VIN = 3.3 V 0.30 0.25 VIN = 2.5 V 0.20 0.15 0.10 0.05 0 -50 0 50 TJ - Junction Temperature - °C 100 150 Figure 17.
PAGE 14
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com TYPICAL CHARACTERISTICS (continued) 20 VIN = 5 V, TA = 25°C 18 Current Limit Response - ms 16 14 12 10 8 6 4 2 0 0 1.5 3 Peak Current - A 4.5 6 Figure 19.
PAGE 15
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 DETAILED DESCRIPTION OVERVIEW The TPS2550/51 are current-limited, power distribution switches using N-channel MOSFETs for applications where short-circuits or heavy capacitive loads will be encountered. These devices allow the user to program the current-limit threshold between 100 mA and 1.
PAGE 16
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com ENABLE (EN OR EN) The logic enable controls the power switch, bias for the charge pump, driver, and other circuits to reduce the supply current. The supply current is reduced to less than 1-µA when a logic high is present on EN or when a logic low is present on EN.
PAGE 17
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 APPLICATION INFORMATION INPUT AND OUTPUT CAPACITANCE Input and output capacitance improve the performance of the device; the actual capacitance should be optimized for the particular application. For all applications, a 0.01 µF to 0.
PAGE 18
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com 1800 Current-Limit Threshold - mA 1700 1600 1500 1400 IOC(max) 1300 1200 1100 1000 IOC(typ) IOC(min) 900 800 700 600 500 400 300 200 100 0 15 IOS(min) 20 25 30 35 40 45 50 RILIM - kW 55 60 65 70 75 80 Figure 21. Current-Limit Threshold Vs.
PAGE 19
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 Select the closest 1% resistor greater than the calculated value: RILIM = 21.5 kΩ. This sets the maximum current-limit threshold at 1.25 A . Use the IOS equations, Figure 21, and the previously calculated value for RILIM to calculate the minimum resulting current-limit threshold. • RILIM = 21.
PAGE 20
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com devices depending on its maximum current draw. A device classified as low-power can draw up to 100 mA as defined by the standard. A device classified as high-power can draw up to 500 mA.
PAGE 21
TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 AUTO-RETRY FUNCTIONALITY Some applications require that an overcurrent condition disables the part momentarily during a fault condition and re-enables after a pre-set time. This auto-retry functionality can be implemented with an external resistor and capacitor.
PAGE 22
TPS2550 TPS2551 SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ........................................................................................................................................ www.ti.com TPS2551 0.1 mF Input Output IN 0.1 mF OUT RLOAD 10 kW CLOAD External Logic Enable Signal ILIM EN 15 kW GND FAULT RFAULT 10 kW Power Pad SN74HC00D STAT Figure 24.
PAGE 23
PACKAGE OPTION ADDENDUM www.ti.
PAGE 24
PACKAGE OPTION ADDENDUM www.ti.com 10-Jun-2014 PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details.
PAGE 25
PACKAGE MATERIALS INFORMATION www.ti.com 7-Mar-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ TPS2550DBVR SOT-23 3000 179.0 8.4 DBV 6 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 TPS2550DBVT SOT-23 DBV 6 250 179.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 TPS2550DRVR SON DRV 6 3000 179.0 8.4 2.2 2.2 1.2 4.0 8.
PAGE 26
PACKAGE MATERIALS INFORMATION www.ti.com 7-Mar-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS2550DBVR SOT-23 DBV 6 3000 203.0 203.0 35.0 TPS2550DBVT SOT-23 DBV 6 250 203.0 203.0 35.0 TPS2550DRVR SON DRV 6 3000 203.0 203.0 35.0 TPS2550DRVT SON DRV 6 250 203.0 203.0 35.0 TPS2551DBVR SOT-23 DBV 6 3000 180.0 180.0 18.0 TPS2551DBVR SOT-23 DBV 6 3000 203.0 203.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.