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Table Of Contents

FEATURES

DESCRIPTION

GND

†

OUT

TPS2045A, TPS2055A

D PACKAGE

(TOP VIEW)

GND

EN1

†

EN2

†

OC1

OUT1

OUT2

OC2

TPS2046A, TPS2056A

D PACKAGE

(TOP VIEW)

GNDA

IN1

EN1

†

EN2

†

GNDB

IN2

EN3

†

EN4

†

OC1

OUT1

OUT2

OC2

OC3

OUT3

OUT4

OC4

TPS2048A, TPS2058A

D PACKAGE

(TOP VIEW)

†

All enable inputs are active high for the TPS205xA series.

NC – No connect

GNDA

IN1

EN1

†

EN2

†

GNDB

IN2

EN3

†

OC1

OUT1

OUT2

OC2

OC3

OUT3

TPS2047A, TPS2057A

D PACKAGE

(TOP VIEW)

TPS2045A , , TPS2046A

TPS2047A , TPS2048A , TPS2055A

TPS2056A , TPS2057A , TPS2058A

SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008

www.ti.com

CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

• 80-m Ω High-Side MOSFET Switch

• 250 mA Continuous Current Per Channel

• Independent Thermal and Short-Circuit

Protection With Overcurrent Logic Output

• Operating Range: 2.7-V to 5.5-V

• CMOS- and TTL-Compatible Enable Inputs

• 2.5-ms Typical Rise Time

• Undervoltage Lockout

• 10 µ A Maximum Standby Supply Current

for Single and Dual

(20 µ A for Triple and Quad)

• Bidirectional Switch

• Ambient Temperature Range, 0 ° C to 85 ° C

• ESD Protection

The TPS2045A through TPS2048A and TPS2055A

through TPS2058A power-distribution switches are

intended for applications where heavy capacitive

loads and short circuits are likely to be encountered.

These devices incorporate 80-m Ω N-channel MOSFET high-side power switches for power-distribution systems

that require multiple power switches in a single package. Each switch is controlled by an independent 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, these devices limit 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 the switch

remains off until valid input voltage is present. These power-distribution switches are designed to current limit at

0.5 A.

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.

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 (37 pages)

PAGE 1
TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES FEATURES 1 • • • • • • • • • • • 80-mΩ High-Side MOSFET Switch 250 mA Continuous Current Per Channel Independent Thermal and Short-Circuit Protection With Overcurrent Logic Output Operating Range: 2.7-V to 5.5-V CMOS- and TTL-Compatible Enable Inputs 2.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 Terminal Functions TPS2045A AND TPS2055A TERMINAL NAME NO. I/O DESCRIPTION TPS2045A TPS2055A 4 - I Enable input. Logic low turns on power switch. EN - 4 I Enable input. Logic high turns on power switch. GND 1 1 I Ground 2, 3 2, 3 I Input voltage 5 5 O Overcurrent.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 Terminal Functions (continued) TPS2047A AND TPS2057A TERMINAL NAME NO. I/O DESCRIPTION TPS2047A TPS2057A EN1 3 - I Enable input, logic low turns on power switch, IN1-OUT1. EN2 4 - I Enable input, logic low turns on power switch, IN1-OUT2. EN3 7 - I Enable input, logic low turns on power switch, IN2-OUT3.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 www.ti.com DETAILED DESCRIPTION POWER SWITCH The power switch is an N-channel MOSFET with a maximum on-state resistance of 135 mΩ (VI(IN) = 5 V). Configured as a high-side switch, the power switch prevents current flow from OUT to IN and IN to OUT when disabled. The power switch supplies a minimum of 250 mA per switch.
PAGE 9
TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) UNIT VI(IN) Input voltage range (2) VO(OUT) Output voltage range (2) VI(ENx) or VI(ENx) Input voltage range IO(OUT) Continuous output current 0.3 V to 6 V –0.3 V to VI(IN) + 0.3 V –0.
PAGE 10
TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 ELECTRICAL CHARACTERISTICS OVER RECOMMENDED OPERATING JUNCTION TEMPERATURE RANGE VI(IN) = 5.5 V, IO = rated current, VI(EN) = VI(IN)(unless otherwise noted) TEST CONDITIONS (1) PARAMETER Static drain-source on-state resistance, 5-V operation rDS(on) Static drain-source on-state resistance, 3.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 SUPPLY CURRENT (TPS2045A, TPS2055A) PARAMETER VI(EN) = VI(IN) Supply current, low-level output No Load on OUT VI(EN) = 0 V VI(EN) = 0 V Supply current, high-level output TPS2045A TEST CONDITIONS No Load on OUT VI(EN) = VI(IN) TYP TJ = 25°C MAX 0.025 MIN TYP MAX 10 TJ = 25°C 0.
PAGE 12
TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 SUPPLY CURRENT (TPS2047A, TPS2057A) PARAMETER TEST CONDITIONS TYP No load on OUTx TPS2057A MAX 0.05 MIN TYP MAX 0.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 PARAMETER MEASUREMENT INFORMATION OUT RL tf tr CL VO(OUT) 90% 90% 10% 10% TEST CIRCUIT 50% VI(EN) 50% toff ton toff ton 90% VO(OUT) 50% 50% VI(EN) 90% VO(OUT) 10% 10% VOLTAGE WAVEFORMS Figure 1. Test Circuit and Voltage Waveforms VI(EN) VI(EN) (5 V/div) (5 V/div) VI(IN) = 5 V TA = 25°C CL = 0.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 PARAMETER MEASUREMENT INFORMATION (continued) VI(EN) VI(EN) (5 V/div) (5 V/div) VI(IN) = 5 V TA = 25°C CL = 1 µF RL = 20 Ω VO(OUT) (2 V/div) 0 1 2 3 4 5 6 7 8 VI(IN) = 5 V TA = 25°C CL = 1 µF RL = 20 Ω VO(OUT) (2 V/div) 9 0 10 2 4 6 8 10 12 14 16 18 20 t − Time − ms t − Time − ms Figure 4.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 PARAMETER MEASUREMENT INFORMATION (continued) VI(IN) = 5 V TA = 25°C RAMP: 1A/100 ms VI(EN) (5 V/div) VO(OC) (5 V/div) 220 µF 100 µF 47 µF IO(OUT) IO(OUT) (0.2 A/div) (0.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TYPICAL CHARACTERISTICS TURNON DELAY TIME vs INPUT VOLTAGE TURNOFF DELAY TIME vs INPUT VOLTAGE 10 3.9 Turnon Delay Time − ms 3.6 Turnon Delay Time − ms CL = 1 µF RL = 20 Ω TA = 25°C CL = 1 µF RL = 20 Ω TA = 25°C 3.3 3 8 6 4 2.7 2.4 2.5 3 3.5 4 4.5 5 5.5 2 2.5 6 3 VI − Input Voltage − V 3.5 4 4.5 5 VI − Input Voltage − V Figure 12. Figure 13.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TYPICAL CHARACTERISTICS (continued) SUPPLY CURRENT, OUTPUT ENABLED vs JUNCTION TEMPERATURE SUPPLY CURRENT, OUTPUT DISABLED vs JUNCTION TEMPERATURE 160 I I(IN) − Supply Current, Output Disabled − nA I I(IN) − Supply Current, Output Enabled − µ A 100 90 VI(IN) = 5.5 V VI(IN) = 5 V 80 VI(IN) = 4.5 V 70 VI(IN) = 2.7 V 60 VI(IN) = 3.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TYPICAL CHARACTERISTICS (continued) SHORT-CIRCUIT OUTPUT CURRENT vs JUNCTION TEMPERATURE THRESHOLD TRIP CURRENT vs INPUT VOLTAGE 0.67 TA = 25°C Load Ramp = 1 A/10 ms 490 VI(IN) = 2.7 V 0.65 480 VI(IN) = 3.3 V Threshold Trip Current − A I OS − Short-Circuit Output Current − mA 500 470 460 VI(IN) = 5 .5V 450 VI(IN) = 4 .5V VI(IN) = 5V 440 430 420 0.63 0.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 APPLICATION INFORMATION TPS2045A 2,3 Power Supply 2.7 V to 5.5 V IN 0.1 µF OUT 6,7,8 Load 0.1 µF 5 4 22 µF OC EN GND 1 Figure 24. Typical Application (Example, TPS2045A) POWER-SUPPLY CONSIDERATIONS A 0.01-µF to 0.1-µF ceramic bypass capacitor between INx and GND, close to the device, is recommended.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TPS2045A GND OUT IN OUT IN OUT EN OC V+ Rpullup Figure 25. Typical Circuit for OC Pin (Example, TPS2045A) POWER DISSIPATION AND JUNCTION TEMPERATURE The low on-resistance on the n-channel MOSFET allows small surface-mount packages, such as SOIC, to pass large currents.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 UNIVERSAL SERIAL BUS (USB) APPLICATIONS The universal serial bus (USB) interface is a 12-Mb/s, or 1.5-Mb/s, multiplexed serial bus designed for low-to-medium bandwidth PC peripherals (e.g., keyboards, printers, scanners, and mice). The four-wire USB interface is conceived for dynamic attach-detach (hot plug-unplug) of peripherals.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 www.ti.com USB POWER-DISTRIBUTION REQUIREMENTS USB can be implemented in several ways, and, regardless of the type of USB device being developed, several power-distribution features must be implemented.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TUSB2040 Hub Controller SN75240 Upstream Port BUSPWR A C B D D+ D− DP0 GANGE D DP1 DM0 DM1 Downstream Ports D+ Ferrite Beads A C B D GND D− GND SN75240 DP2 DM2 5V 33 µF† DP3 5V DM3 D+ A C B D TPS76333 0.1 µF 4.7 µF D− SN75240 Ferrite Beads GND DP4 IN 3.3 V 4.7 µF VCC DM4 5V TPS2045A GND GND PWRON1 EN OVRCUR1 OC IN 0.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TUSB2040 Hub Controller SN75240 Upstream Port BUSPWR A C B D D+ D− DP0 GANGE D DP1 DM0 DM1 Downstream Ports D+ A C B D GND Ferrite Beads GND SN75240 DP2 DM2 D− 5V 33 µF† DP3 5V DM3 A C B D TPS76333 0.1 µF 4.7 µF SN75240 D+ D− Ferrite Beads GND DP4 IN 3.3 V 4.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TUSB2040 Hub Controller 1/2 SN75240 Upstream Port BUSPWR A C B D D+ D− DP0 GANGE D DP1 DM0 DM1 Downstream Ports D+ A C B D GND Ferrite Beads GND SN75240 DP2 DM2 D− 5V 47 µF† DP3 5V DM3 A C B D TPS76333 0.1 µF 4.7 µF 1/2 SN75240 D+ D− Ferrite Beads GND DP4 IN 3.3 V 4.
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TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 TUSB2040 Hub Controller SN75240 Upstream Port BUSPWR A C B D D+ D− DP0 GANGE D DP1 DM0 DM1 Downstream Ports D+ A C B D GND DM2 D− GND SN75240 DP2 TPS2041A Ferrite Beads 5V 33 µF† DP3 5V DM3 A C B D TPS76333 0.1 µF 4.7 µF SN75240 D+ D− Ferrite Beads GND DP4 IN 3.3 V 4.
PAGE 27
TPS2045A,, TPS2046A TPS2047A, TPS2048A, TPS2055A TPS2056A, TPS2057A, TPS2058A www.ti.com SLVS251C – SEPTEMBER 2000 – REVISED JANUARY 2008 GENERIC HOT-PLUG APPLICATIONS (see Figure 31) In many applications it may be necessary to remove modules or pc boards while the main unit is still operating. These are considered hot-plug applications. Such implementations require the control of current surges seen by the main power supply and the card being inserted.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 20-Aug-2011 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
PAGE 31
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TPS2045ADR SOIC D TPS2046ADR SOIC TPS2047ADR SOIC TPS2048ADR SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 5.2 2.1 8.0 12.0 Q1 8 2500 330.0 12.4 6.4 D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 SOIC D 16 2500 330.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS2045ADR SOIC D 8 2500 340.5 338.1 20.6 TPS2046ADR SOIC D 8 2500 340.5 338.1 20.6 TPS2047ADR SOIC D 16 2500 333.2 345.9 28.6 TPS2048ADR SOIC D 16 2500 333.2 345.9 28.6 TPS2055ADR SOIC D 8 2500 340.5 338.1 20.6 TPS2056ADR SOIC D 8 2500 340.5 338.1 20.6 TPS2056ADR SOIC D 8 2500 367.
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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.