Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - ELCs High side SOT 23 6

2.9mm x 1.6mm TSOT-23 (DDC)

(TOP VIEW)

VOUT

R1/C1

ON/OFF

VIN

TPS27081ADDC

VIN

VOUT

R1/C1

ON/OFF

ESD

(2, 3)

(1)

(5)

(6)

(4)

GPIO/

Logic

Up to

Supply

LOAD

TPS27081A

www.ti.com

SLVSBE9D –APRIL 2012–REVISED APRIL 2013

1.2V - 8V, 3A PFET High Side Load Switch with Level Shift & Adjustable Slew Rate

Control

Check for Samples: TPS27081A

FEATURES

DESCRIPTION

• Low ON Resistance, High Current PFET

The TPS27081A IC is a high side load switch that

– R

= 32mΩ at V

= –4.5V

integrates a Power PFET and a Control NFET in a

tiny package.

– R

= 44mΩ at V

= –3.0V

– R

= 82mΩ at V

= –1.8V

The TPS27081A features industry-standard ESD

protection on all pins providing better ESD

– R

= 93mΩ at V

= –1.5V

compatibility with other on-board components.

– R

= 155mΩ at V

= –1.2V

The TPS27081A level shifts ON/OFF logic signal to

• Adjustable Turn-ON and Turn-OFF Slew Rate

VIN levels and supports as low as 1.0V CPU or MCU

Control Through External R1, R2, and C1

logic to control higher voltage power supplies without

• Supports a Wide Range of 1.2V up to 8V

requiring an external level-shifter.

Supply Inputs

Switching a large value output capacitor CL through a

• Integrated NMOS for PFET Control

fast ON/OFF logic signal may result in an excessive

• NMOS ON/OFF Supports a Wide Range of 1.0V

inrush current. To control the load inrush current,

up to 8V Control Logic Interface

connect a resistor R2 as shown in Figure 2. To

further limit the inrush current add an external

• Full ESD Protection (All Pins)

capacitor C1. To configure the TPS27081A to

– HBM 2kV, CDM 500V

achieve a specific slew rate refer to the Application

• Ultra Low Leakage Current in Stand-by (Typ

Information section.

100nA)

A single pull-up resistor R1 is required in stand-by

• Available in Tiny 6-pin Package

power switch applications that do not require inrush

– 2.9mm x 2.8mm x 0.75mm Thin SOT-23

current control. In such applications connect the

TPS27081A pin R2 to the system ground.

(DDC)

APPLICATIONS

• High Side Load Switch

• Inrush-current control

• Power Sequencing and Control

• Stand-by Power Isolation

Figure 2. Simplified Block & Application Diagram

• Portable Power Switch

Component Table (Typical Application)

COMPONENT DESCRIPTION

R1 Level Shift/Pull-up Resistor

R2 Optional

(1)

C1 Optional

(1)

Figure 1. TPS27081A Packages (1) Required for load inrush current (slew rate) control

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 (21 pages)

PAGE 1
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 1.2V - 8V, 3A PFET High Side Load Switch with Level Shift & Adjustable Slew Rate Control Check for Samples: TPS27081A FEATURES 1 • • • • • • • • Low ON Resistance, High Current PFET – RON = 32mΩ at VGS = –4.5V – RON = 44mΩ at VGS = –3.0V – RON = 82mΩ at VGS = –1.8V – RON = 93mΩ at VGS = –1.5V – RON = 155mΩ at VGS = –1.2V Adjustable Turn-ON and Turn-OFF Slew Rate Control Through External R1, R2, and C1 Supports a Wide Range of 1.
PAGE 2
TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 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 3
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 ELECTRICAL CHARACTERISTICS Specified over the recommended junction temperature range TJ = -40°C to 105°C unless otherwise noted. Typical values specified at TA = TJ = 25°C.
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TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com DEVICE INFORMATION TPS27081ADDC R2 1 6 R1/C1 VOUT 2 5 ON/OFF VOUT 3 4 VIN 2.9mm x 1.
PAGE 5
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 APPLICATION INFORMATION The TPS27081A IC is a high side load switch that integrates a Power PFET and a Control NMOS in a tiny package. The TPS27081A internal components are rated for up to 8V supply and support up to 3A of load current. The TPS27081A can be used in a variety applications. Figure 3 below shows a general application of TPS27081A to control the load inrush current.
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TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com Table 1. Component Values for VOUT Rise Time Rise Time (µs) (2) (3) R1=10kΩ, R2=1kΩ C1 (1) VIN = 7V VIN = 5V R1=5.1kΩ, R2=510Ω VIN = 3.3V VIN = 1.2V VIN = 7V VIN = 5V VIN = 3.3V VIN = 1.2V 220pF .253 .316 .416 .810 .129 .161 .212 .413 1000pF 1.15 1.44 1.89 3.68 .586 .732 .963 1.88 4700pF 5.4 6.75 8.88 17.3 2.76 3.44 4.53 8.83 0.18uF 207 258 340 663 106 132 173 338 0.
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TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 Thermal Reliability For higher reliability it is recommended to limit TPS27081A IC’s die junction temperature to less than 105°C. The IC junction temperature is directly proportional to the on-chip power dissipation. Use the following equation to calculate maximum on-chip power dissipation to achieve the maximum die junction temperature target: PD(MAX) = (T J(MAX) - TA ) qJA Where: TJ(MAX) is the target maximum junction temperature.
PAGE 8
TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com APPLICATION EXAMPLES TFT LCD Module Inrush Current Control VOUT VIN 3-5V Input (2, 3) (4) VIN Q1 CIN COUT R1 (6) TFT LCD Module C1 R1/C1 (5) GPIO Q2 ON/OFF R2 (1) R2 Figure 4. Inrush Current Control Using TPS27081A LCD panels require inrush current control to prevent permanent system damages during turn-ON and turn-OFF events.
PAGE 9
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 Boost Regulator with True Shutdown VOUT VIN 1.8 - 8V Input (2, 3) (4) SW VIN Q1 CIN CIN R1 (6) R1/C1 FB (5) GPIO Q2 ON/OFF (1) R2 SHDN Boost Reg Figure 6. True Shutdown Using TPS27081A The most common boost regulator topology provides a current leakage path through inductor and diode into the feedback resistor even when the regulator is shut down.
PAGE 10
TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com Multiple Modules Interdependent Power Supply Sequencing 1.2 - 8V Input VOUT2 VOUT1 VIN COUT1 R1 VDD2 Q1 VDD1 Q1 CIN (2, 3) (4) (2, 3) (4) COUT2 R3 (6) (6) C1 (5) C2 R1/C1 Module1 (CPU/MCU) R1/C1 Module2 (5) Q2 Q2 ON/OFF ON/OFF GPIO R2 (1) R2 (1) R4 R2 Figure 8. Power Sequencing Using TPS27081A, Example 2 For system integrity reasons a certain power sequencing may be required among various modules.
PAGE 11
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 TPS27081A THIN SOT(DDC) SPECIFIC PACKAGE DIMENSIONS NOTES: • All linear dimensions are in millimeters. • Body dimensions do not include mold flash or protrusion. • Falls within JEDEC MO-193 variation AA (6 pin).
PAGE 12
TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com TYPICAL CHARACTERISTICS 25 degC 25 degC 0.2 85 degC 85 degC 0.15 0.075 Vdrop (V) Vdrop (V) 0.1 0.05 0.1 0.05 0.025 0 0 0 0.1 0.2 0.3 ILoad (A) 0.4 0.5 0 0.5 1 ILoad (A) C001 Figure 10. Vdrop vs IL; VGSQ1=-1.2V 1.5 2 C003 Figure 11. Vdrop vs IL; VGSQ1=-1.8V 0.15 25 degC 25 degC 0.16 85 degC 85 degC 0.12 Vdrop (V) Vdrop (V) 0.12 0.08 0.04 0.09 0.06 0.03 0 0 0 0.5 1 1.5 2 ILoad (A) 0 2.5 0.5 1 1.
PAGE 13
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 TYPICAL CHARACTERISTICS (continued) 0.15 25 degC 85 degC Vdrop (V) 0.12 0.09 0.06 0.03 0 0 0.5 1 1.5 ILoad (A) 2 2.5 3 C003 Figure 16.
PAGE 14
TPS27081A SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 www.ti.com PFET Q1 Minimum Safe Operating Area (SOA) 3.00 3.50 Load Current (A) Load Current (A) 2.50 2.50 Load Current (A) Load Current (A) 3.00 2.00 1.50 1.00 2.00 1.50 1.00 0.50 0.50 0.00 0.00 0 20 40 60 80 Ambient Temp ƒC 100 0 120 20 40 60 80 Ambient Temp (ºC) C008 Figure 17. Q1 SOA @ VGS_Q1 = -4.5V 120 C001 Figure 18. Q1 SOA @ VGS_Q1 = -3.0V 3.00 2.50 Load Current (A) Load Current (A) 2.50 2.
PAGE 15
TPS27081A www.ti.com SLVSBE9D – APRIL 2012 – REVISED APRIL 2013 REVISION HISTORY Changes from Revision B (September 2012) to Revision C • Page Removed DRV package preview from datasheet. ................................................................................................................ 1 Changes from Revision C (January 2013) to Revision D • Page Updated wording in document. ..................................................................................................................
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.com 23-Apr-2013 PACKAGING INFORMATION Orderable Device Status (1) TPS27081ADDCR ACTIVE Package Type Package Pins Package Drawing Qty SOT DDC 6 3000 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) CU SN Level-1-260C-UNLIM (4) -40 to 85 AUA (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 9-Apr-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device TPS27081ADDCR Package Package Pins Type Drawing SOT DDC 6 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 3000 180.0 9.5 Pack Materials-Page 1 3.17 B0 (mm) K0 (mm) P1 (mm) 3.1 1.1 4.0 W Pin1 (mm) Quadrant 8.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 9-Apr-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS27081ADDCR SOT DDC 6 3000 184.0 184.0 19.
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