Datasheet

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OUT

FAULT

ILIM

GND

PAD

OUT

FAULT

ILIM

GND

TPS2552/TPS2553

DBVPACKAGE

(TOP VIEW)

EN = ActiveLowfortheTPS2552

EN= ActiveHighfortheTPS2553

Add-1topartnumberforlach-offversion

OUT

GND

FAULT

ILIM

20kW

FAULT

100kW

ControlSignal

5VUSB

Input

USB

Port

USBData

TPS2552/53

0.1 Fm

120 Fm

Fault Signal

PowerPad

USBrequirementonly*

facingportsarebypassedwithatleast

120 Fperhub

USBrequirementthatdownstream

TPS2552/TPS2553

DRVPACKAGE

(TOP VIEW)

TPS2552, TPS2553

TPS2552-1, TPS2553-1

www.ti.com

SLVS841E –NOVEMBER 2008– REVISED FEBRUARY 2012

PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

Check for Samples: TPS2552, TPS2553, TPS2552-1, TPS2553-1

FEATURES

DESCRIPTION

The TPS2552/53 and TPS2552-1/53-1 power-

• Up to 1.5 A Maximum Load Current

distribution switches are intended for applications

• ±6% Current-Limit Accuracy at 1.7 A (typ)

where precision current limiting is required or heavy

• Meets USB Current-Limiting Requirements

capacitive loads and short circuits are encountered

and provide up to 1.5 A of continuous load current.

• Backwards Compatible with TPS2550/51

These devices offer a programmable current-limit

• Adjustable Current Limit, 75 mA–1300 mA (typ)

threshold between 75 mA and 1.7 A (typ) via an

• Constant-Current (TPS2552/53) and Latch-off

external resistor. Current-limit accuracy as tight as

(TPS2552-1/53-1) Versions

±6% can be achieved at the higher current-limit

settings. The power-switch rise and fall times are

• Fast Overcurrent Response - 2-μs (typ)

controlled to minimize current surges during turn

• 85-mΩ High-Side MOSFET (DBV Package)

on/off.

• Reverse Input-Output Voltage Protection

TPS2552/53 devices limit the output current to a safe

• Operating Range: 2.5 V to 6.5 V

level by using a constant-current mode when the

• Built-in Soft-Start

output load exceeds the current-limit threshold.

TPS2552-1/53-1 devices provide circuit breaker

• 15 kV ESD Protection per IEC 61000-4-2 (with

functionality by latching off the power switch during

External Capacitance)

overcurrent or reverse-voltage situations. An internal

• UL Listed – File No. E169910 and NEMKO

reverse- voltage comparator disables the power-

IEC60950-1-am1 ed2.0

switch when the output voltage is driven higher than

• See the TI Switch Portfolio the input to protect devices on the input side of the

switch. The FAULT output asserts low during

overcurrent and reverse-voltage conditions.

APPLICATIONS

• USB Ports/Hubs

• Digital TV

• Set-Top Boxes

• VOIP Phones

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.

2PowerPAD 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 (34 pages)

PAGE 1
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES Check for Samples: TPS2552, TPS2553, TPS2552-1, TPS2553-1 FEATURES DESCRIPTION • • • • • • The TPS2552/53 and TPS2552-1/53-1 powerdistribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current.
PAGE 2
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 2 Submit Documentation Feedback www.ti.
PAGE 3
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
PAGE 4
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com RECOMMENDED OPERATING CONDITIONS VIN MIN MAX 2.5 6.5 TPS2552/52-1 0 6.5 TPS2553 /53-1 0 6.5 Input voltage, IN VEN Enable voltage VEN VIH High-level input voltage on EN or EN VIL Low-level input voltage on EN or EN IOUT Continuous output current, OUT RILIM Current-limit threshold resistor range (nominal 1%) from ILIM to GND IO Continuous FAULT sink current TJ (1) V V 1.1 V 0.
PAGE 5
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com ELECTRICAL CHARACTERISTICS (continued) over recommended operating conditions, VEN = 0 V, or VEN = VIN, RFAULT = 10 kΩ (unless otherwise noted) TEST CONDITIONS (1) PARAMETER MIN TYP MAX UNIT SUPPLY CURRENT IIN_off Supply current, low-level output 0.1 1 μA RILIM = 20 kΩ 120 140 μA RILIM = 210 kΩ 100 120 μA TJ = 25 °C 0.01 1 μA 2.35 2.45 VIN = 6.5 V, No load on OUT, VEN = 6.
PAGE 6
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com DEVICE INFORMATION Pin Functions PIN NAME I/O DESCRIPTION TPS2552DBV TPS2553DBV TPS2552DRV TPS2553DRV EN 3 – 4 – I Enable input, logic low turns on power switch EN – 3 – 4 I Enable input, logic high turns on power switch GND 2 2 5 5 IN 1 1 6 6 I Input voltage; connect a 0.1 μF or greater ceramic capacitor from IN to GND as close to the IC as possible.
PAGE 7
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com PARAMETER MEASUREMENT INFORMATION OUT tf tr CL RL 90% 90% VOUT 10% 10% TEST CIRCUIT VEN 50% 50% VEN ton VOUT toff toff ton 90% 50% 50% toff 90% VOUT 10% 10% VOLTAGE WAVEFORMS Figure 2. Test Circuit and Voltage Waveforms IOS IOUT tIOS Figure 3. Response Time to Short Circuit Waveform Decreasing Load Resistance VOUT Decreasing Load Resistance IOUT IOS Figure 4. Output Voltage vs.
PAGE 8
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com TYPICAL CHARACTERISTICS TPS2552 VIN 10 mF IN VOUT OUT RFAULT 10 kW 150 mF ILIM Fault Signal Control Signal FAULT EN RILIM GND Power Pad Figure 5. Typical Characteristics Reference Schematic 8 Figure 6. Turnon Delay and Rise Time Figure 7. Turnoff Delay and Fall Time Figure 8. Device Enabled into Short-Circuit Figure 9.
PAGE 9
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 10. Short-Circuit to Full-Load Recovery Response Figure 11. No-Load to Short-Circuit Transient Response Figure 12. Short-Circuit to No-Load Recovery Response Figure 13. No Load to 1Ω Transient Response Figure 14. 1Ω to No Load Transient Response Figure 15.
PAGE 10
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) 2.40 UVLO - Undervoltage Lockout - V 2.39 RILIM = 20 kW 2.38 2.37 UVLO Rising 2.36 2.35 2.34 UVLO Falling 2.33 2.32 2.31 2.30 -50 RILIM = 20 kW 0.36 135 IIN - Supply Current, Output Enabled - mA IIN - Supply Current, Output Disabled - mA 100 150 150 0.40 0.32 0.28 0.24 VIN = 6.5 V 0.20 0.16 0.12 0.08 VIN = 2.5 V 0.04 RILIM = 20 kW VIN = 6.
PAGE 11
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) 1400 150 1300 140 130 IDS - Static Drain-Source Current - mA IDS - Static Drain-Source Current - mA 1200 TA = -40°C 1100 1000 TA = 25°C 900 TA = 125°C 800 700 600 500 400 300 120 TA = 25°C TA = -40°C 110 TA = 125°C 100 90 80 70 60 50 40 30 200 VIN = 6.5 V, 20 VIN = 6.
PAGE 12
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com DETAILED DESCRIPTION OVERVIEW The TPS2552/53 and TPS2552-1/53-1 are current-limited, power-distribution switches using N-channel MOSFETs for applications where short circuits or heavy capacitive loads will be encountered and provide up to 1.5 A of continuous load current. These devices allow the user to program the current-limit threshold between 75 mA and 1.7 A (typ) via an external resistor.
PAGE 13
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com FAULT RESPONSE The FAULT open-drain output is asserted (active low) during an overcurrent, overtemperature or reverse-voltage condition. The TPS2552/53 asserts the FAULT signal until the fault condition is removed and the device resumes normal operation. The TPS2552-1/53-1 asserts the FAULT signal during a fault condition and remains asserted while the part is latched-off.
PAGE 14
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com APPLICATION INFORMATION INPUT AND OUTPUT CAPACITANCE Input and output capacitance improves the performance of the device; the actual capacitance should be optimized for the particular application. For all applications, a 0.1μF or greater ceramic bypass capacitor between IN and GND is recommended as close to the device as possible for local noise de-coupling.
PAGE 15
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com While the maximum recommended value of RILIM is 232 kΩ, there is one additional configuration that allows for a lower current-limit threshold. The ILIM pin may be connected directly to IN to provide a 75 mA (typ) current-limit threshold. Additional low-ESR ceramic capacitance may be necessary from IN to GND in this configuration to prevent unwanted noise from coupling into the sensitive ILIM circuitry.
PAGE 16
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com APPLICATION 1: DESIGNING ABOVE A MINIMUM CURRENT LIMIT Some applications require that current limiting cannot occur below a certain threshold. For this example, assume that 1 A must be delivered to the load so that the minimum desired current-limit threshold is 1000 mA. Use the IOS equations and Figure 24 to select RILIM. IOSmin (mA) = 1000mA IOSmin (mA) = 25230V RILIM1.016 k W 1 æ 25230V ÷ö1.
PAGE 17
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com ACCOUNTING FOR RESISTOR TOLERANCE The previous sections described the selection of RILIM given certain application requirements and the importance of understanding the current-limit threshold tolerance. The analysis focussed only on the TPS2552/53 and TPS2552-1/53-1 performance and assumed an exact resistor value.
PAGE 18
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com While both the constant-current devices (TPS2552/53 ) and latch-off devices (TPS2552-1/53-1) operate identically during the initial onset of an overcurrent event, they behave differently if the overcurrent event lasts longer than the internal delay "deglitch" circuit (7.5-ms typ).
PAGE 19
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com UNIVERSAL SERIAL BUS (USB) POWER-DISTRIBUTION REQUIREMENTS One application for this device is for current limiting in universal serial bus (USB) applications. The original USB interface was 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). As the demand for more bandwidth increased, the USB 2.
PAGE 20
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com SELF-POWERED AND BUS-POWERED HUBS A SPH has a local power supply that powers embedded functions and downstream ports. This power supply must provide between 4.75 V to 5.25 V to downstream facing devices under full-load and no-load conditions. SPHs are required to have current-limit protection and must report overcurrent conditions to the USB controller.
PAGE 21
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com 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. During a fault condition, FAULT pulls low disabling the part.
PAGE 22
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com TWO-LEVEL CURRENT-LIMIT CIRCUIT Some applications require different current-limit thresholds depending on external system conditions. Figure 27 shows an implementation for an externally controlled, two-level current-limit circuit. The current-limit threshold is set by the total resistance from ILIM to GND (see the Programming the Current-Limit Threshold section).
PAGE 23
TPS2552, TPS2553 TPS2552-1, TPS2553-1 SLVS841E – NOVEMBER 2008 – REVISED FEBRUARY 2012 www.ti.com REVISION HISTORY Changes from Original (November 2008) to Revision A • Page Changed Title from: ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES To: PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES ....................................................................... 1 Changes from Revision A (December 2008) to Revision B Page • Added To Features - UL Listed – File No. E169910 ..
PAGE 24
PACKAGE OPTION ADDENDUM www.ti.
PAGE 25
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. 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.
PAGE 26
PACKAGE MATERIALS INFORMATION www.ti.com 7-Dec-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TPS2552DBVR SOT-23 DBV 6 3000 179.0 8.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 TPS2552DBVR SOT-23 DBV 6 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 TPS2552DBVR-1 SOT-23 DBV 6 3000 179.0 8.4 3.2 3.2 1.4 4.0 8.
PAGE 27
PACKAGE MATERIALS INFORMATION www.ti.com 7-Dec-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TPS2553DBVT-1 SOT-23 DBV 6 250 178.0 9.0 TPS2553DBVT-1 SOT-23 DBV 6 250 179.0 8.4 TPS2553DRVR SON DRV 6 3000 179.0 TPS2553DRVR SON DRV 6 3000 180.
PAGE 28
PACKAGE MATERIALS INFORMATION www.ti.com 7-Dec-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS2552DRVR SON DRV 6 3000 203.0 203.0 35.0 TPS2552DRVR-1 SON DRV 6 3000 203.0 203.0 35.0 TPS2552DRVT SON DRV 6 250 210.0 185.0 35.0 TPS2552DRVT SON DRV 6 250 203.0 203.0 35.0 TPS2552DRVT-1 SON DRV 6 250 203.0 203.0 35.0 TPS2553DBVR SOT-23 DBV 6 3000 180.0 180.0 18.0 TPS2553DBVR 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.