Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - ELCs High side SOT 23 6

Power

Supply

OFF

TPS22929

OUT

GND

TPS22929

www.ti.com

SLVSB39 –DECEMBER 2011

Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on

Check for Samples: TPS22929

FEATURES

DESCRIPTION

The TPS22929 is a small, low r

load switch with

• Integrated Single Load Switch

controlled turn on. The device contains a P-channel

• Small SOT23-6 package

MOSFET that can operate over an input voltage

• Input Voltage Range: 1.4-V to 5.5-V

range of 1.4 V to 5.5 V. The switch is controlled by an

on/off input (ON), which is capable of interfacing

• Low ON-Resistance

directly with low-voltage control signals. The

– r

= 115-mΩ at VIN = 5-V

TPS22929 is active high enable.

– r

= 115-mΩ at VIN = 3.3-V

The TPS22929 contains a 150-Ω on-chip load

– r

= 118-mΩ at VIN = 2.5-V

resistor for quick output discharge when the switch is

– r

= 129-mΩ at VIN = 1.5-V

turned off. The rise time of the device is internally

controlled in order to avoid inrush current. The

• 1.8-A Continuous Switch Current (25C)

TPS22929 family has various slew rate options

• Low Threshold Control Input

(see ).

• Controlled Slew-rate Options

The TPS22929 device provides circuit breaker

• Under-Voltage Lock Out

functionality by latching off the power-switch during

• Quick Output Discharge Transistor

reverse voltage situations. An internal reverse voltage

comparator disables the power-switch when the

• Reverse Current Protection

output voltage (V

OUT

) is driven higher than the input

) to quickly (10µs typ) stop the flow of current

APPLICATIONS

towards the input side of the switch. Reverse current

• Portable Industrial Equipment

is always active, even when the power-switch is

disabled. Additionally, under-voltage lockout (UVLO)

• Portable Medical Equipment

protection turns the switch off if the input voltage is

• Portable Media Players

too low.

• Point Of Sales Terminal

The TPS22929 is available in an small, space-saving

• GPS Devices

6-pin SOT23-6 package and is characterized for

• Digital Cameras

operation over the free-air temperature range

of –40°C to 85°C.

• Portable Instrumentation

• Smartphones

TYPICAL APPLICATION

Table 1. Feature List

MAXIMUM OUTPUT

rON (typ) at 3.3 Rise Time at 3.3 V QUICK OUTPUT

DEVICE CURRENT ENABLE

V (typ) DISCHARGE

(1)

(3.3 V and 25°C)

(2)

TPS22929A

(3)

115-mΩ 0.5 µs Yes 1.8-A Active High

TPS22929B

(3)

115-mΩ 100 µs Yes 1.8-A Active High

TPS22929C

(3)

115-mΩ 1000 µs Yes 1.8-A Active High

TPS22929D 115-mΩ 4500 µs Yes 1.8-A Active High

(1) This feature discharges the output of the switch to ground through an 150-Ω resistor, preventing the output from floating.

(2) See “Thermal Considerations” section in Application Information to calculate maximum continuous current for a specific application.

(3) Contact local sales/distributor or factory for availability.

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
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com Ultra-Small, Low on Resistance Load Switch with Controlled Turn-on Check for Samples: TPS22929 FEATURES DESCRIPTION • • • • The TPS22929 is a small, low rON load switch with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22929 is active high enable.
PAGE 2
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com 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.
PAGE 3
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com BLOCK DIAGRAM VIN Reverse Current Protection UVLO Control Logic ON VOUT GND Table 2. FUNCTION TABLE (1) ON VIN to VOUT VOUT to GND (1) L OFF ON H ON OFF See Application section ‘Output Pull-Down’ ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) VALUE UNIT –0.3 to 6 V VOUT Output voltage range VIN + 0.3 V VON –0.
PAGE 4
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.
PAGE 5
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS VIN = 1.4 V to 5.5 V, TA = –40ºC to 85ºC (unless otherwise noted) PARAMETER IIN IIN(off) IIN(Leakage) Quiescent current Off supply current Leakage current TEST CONDITIONS TA MIN 2.2 10 IOUT = 0, VIN = VON = 4.2 V 2.1 7.0 IOUT = 0, VIN = VON = 3.6 V 2.0 7.0 IOUT = 0, VIN = VON = 2.5 V 1.0 5.0 IOUT = 0, VIN = VON = 1.5 V 0.8 5.0 VON = GND, VOUT = Open, VIN = 5.25 V 0.8 10 VON = GND, VOUT = Open, VIN = 4.2 V 0.
PAGE 6
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com SWITCHING CHARACTERISTICS PARAMETER TPS22929D TEST CONDITION TYP UNIT VIN = 5 V, TA = 25ºC (unless otherwise noted) tON Turn-ON time RL = 10 Ω, CL = 0.1 µF tOFF Turn-OFF time RL = 10 Ω, CL = 0.1 µF 7.4 tR VOUT rise time RL = 10 Ω, CL = 0.1 µF 3660 tF VOUT fall time RL = 10 Ω, CL = 0.1 µF 6.1 3315 µs VIN = 3.3 V, TA = 25ºC (unless otherwise noted) tON Turn-ON time RL = 10 Ω, CL = 0.1 µF 4655 tOFF Turn-OFF time RL = 10 Ω, CL = 0.1 µF 9.
PAGE 7
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS ON-STATE RESISTANCE vs INPUT VOLTAGE ON INPUT THRESHOLD 180 6 −40C 25C 85C 160 5 140 4.5 120 4 VOUT (V) Ron (mΩ) VIN = 5.0V VIN = 4.2V VIN = 3.3V VIN = 2.5V VIN = 1.8V VIN = 1.5V 5.5 100 80 60 3.5 3 2.5 2 1.5 40 1 20 0 0.5 0 0.5 1 1.5 2 2.5 3 3.5 Voltage (V) 4 4.5 5 5.5 0 6 0 0.2 0.4 0.6 0.8 VON (V) 1 1.2 1.4 G000 G000 Figure 2. Figure 3.
PAGE 8
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) ON-STATE RESISTANCE vs TEMPERATURE INPUT CURRENT, OFF vs INPUT VOLTAGE 3000 250 225 200 −40C 25C 85C 2500 2000 150 IIN_Off (nA) Ron (mΩ) 175 VIN = 1.4V VIN = 1.5V VIN = 1.8V VIN = 2.5V VIN = 3.3V VIN = 4.2V VIN= 5.0V VIN = 5.5V 125 100 1500 1000 75 50 500 25 0 −40 −15 10 35 Temperature (°C) 60 0 85 0 0.5 1 1.5 2 2.5 3 3.5 Voltage (V) G000 4 4.5 5 5.5 6 G000 Figure 6. Figure 7. 0.8 0.
PAGE 9
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 9. ULVO Response IOUT = -100mA Figure 10. Reverse Current Protection VOUT = 3.3V, VIN = 3.3V Decreasing to 0V TYPICAL AC CHARACTERISTICS FOR tps22929B RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 4500 4 VIN =5.0V, CL = 0.1 µF, RL = 10 Ohms 4000 3500 3 tFall (µs) tRise (µs) 3000 2500 2000 2 1500 1 1000 500 VIN =5V, CL = 0.
PAGE 10
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) RISE TIME vs TEMPERATURE FALL TIME vs TEMPERATURE 10000 10 VIN =1.5V, CL = 0.1 µF, RL = 10 Ohms 9 8000 8 7 6 tFall (µs) tRise (µs) 6000 5 4 4000 3 2 2000 1 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 0 −40 85 −15 10 35 Temperature (°C) 60 G000 85 G000 Figure 13. Figure 14. TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 4500 10 VIN = 5.0V, CL = 0.
PAGE 11
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) TURN-ON TIME vs TEMPERATURE TURN-OFF TIME vs TEMPERATURE 15000 25 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 12500 20 10000 tOff (µs) tOn (µs) 15 7500 10 5000 5 2500 VIN = 1.5V, CL = 0.1 µF, RL = 10 Ohms 0 −40 −15 10 35 Temperature (°C) 60 0 −40 85 −15 10 35 Temperature (°C) 60 85 G000 G000 Figure 17. Figure 18.
PAGE 12
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN 12 TURN-ON RESPONSE = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω TURN-OFF RESPONSE VIN = 5V, TA = 25°C, CIN = 10µF, CL = 1µF, RL = 10Ω Figure 21. Figure 22. TURN-ON RESPONSE TIME VIN = 5V, TA = 25°C, CIN =1µF, CL = 0.1µF, RL = 10Ω TURN-OFF RESPONSE TIME VIN = 5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 23. Figure 24. TURN-ON RESPONSE TIME VIN = 1.
PAGE 13
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN TURN-ON RESPONSE TIME = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω TURN-OFF RESPONSE TIME VIN = 1.5V, TA = 25°C, CIN = 1µF, CL = 0.1µF, RL = 10Ω Figure 27. Figure 28.
PAGE 14
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com APPLICATION INFORMATION On/Off Control The ON pin controls the state of the switch. Asserting ON high enables the switch. ON is active high and has a low threshold, making it capable of interfacing with low-voltage signals. The ON pin is compatible with standard GPIO logic threshold. It can be used with any microcontroller with 1.2-V, 1.8-V, 2.5-V or 3.3-V GPIOs.
PAGE 15
TPS22929 SLVSB39 – DECEMBER 2011 www.ti.com Thermal Considerations For best device performance, be sure to follow the thermal guidelines in the Thermal Information table on page 4.
PAGE 16
PACKAGE OPTION ADDENDUM www.ti.
PAGE 17
PACKAGE MATERIALS INFORMATION www.ti.com 20-Dec-2011 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TPS22929DDBVR SOT-23 DBV 6 3000 178.0 9.0 TPS22929DDBVT SOT-23 DBV 6 250 178.0 9.0 Pack Materials-Page 1 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.23 3.17 1.37 4.0 8.0 Q3 3.23 3.17 1.37 4.0 8.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 20-Dec-2011 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS22929DDBVR SOT-23 DBV 6 3000 180.0 180.0 18.0 TPS22929DDBVT SOT-23 DBV 6 250 180.0 180.0 18.
PAGE 19
PAGE 20
PAGE 21
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.