Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - ELCs High side or low side WFDFN 14

Dual

Power

Supply

Dual

DC/DC

converter

OFF

TPS22966

IN 1

OUT1

GND

ON1

CT1

OFF

IN2

OUT2

GND

ON2

GND

CT2

BIAS

TPS22966

www.ti.com

SLVSBH4C –JUNE 2012–REVISED JUNE 2013

DUAL-CHANNEL, ULTRA-LOW RESISTANCE LOAD SWITCH

Check for Samples: TPS22966

FEATURES

DESCRIPTION

• Integrated Dual-Channel Load Switch

The TPS22966 is a small, ultra-low R

, dual-channel

• Input Voltage Range: 0.8V to 5.5V

load switch with controlled turn on. The device

contains two N-channel MOSFETs that can operate

• Ultra low R

Resistance

over an input voltage range of 0.8 V to 5.5 V and can

– R

= 18 mΩ at V

= 5 V (V

BIAS

= 5 V)

support a maximum continuous current of 6 A per

– R

= 18 mΩ at V

= 3.6 V (V

BIAS

= 5 V)

channel. Each switch is independently controlled by

– R

= 18 mΩ at V

= 1.8 V (V

BIAS

= 5 V)

an on/off input (ON1 and ON2), which is capable of

interfacing directly with low-voltage control signals. In

• 6-A Maximum Continuous Switch Current per

TPS22966, a 220-Ω on-chip load resistor is added for

Channel

quick output discharge when switch is turned off.

• Low Quiescent Current

The TPS22966 is available in a small, space-saving

– 80 µA (Both Channels)

2mm x 3mm 14-SON package (DPU) with integrated

– 60 µA (Single Channel)

thermal pad allowing for high power dissipation. The

device is characterized for operation over the free-air

• Low Control Input Threshold Enables Use of

temperature range of –40°C to 85°C.

1.2 V/1.8 V/2.5 V/3.3 V Logic

• Configurable Rise Time

Table 1. Feature List

• Quick Output Discharge (QOD)

Typical at 3.6 V (V

BIAS

= 5 V) 18 mΩ

• SON 14-pin Package With Thermal Pad

Rise Time

(1)

Adjustable

• ESD Performance Tested per JESD 22

Quick Output Discharge

(2)

Yes

– 2-kV HBM and 1-kV CDM

Maximum Output Current (per channel) 6 A

GPIO Enable Active High

APPLICATIONS

Operating Temperature –40°C to 85°C

• Ultrabook™

(1) See Application Information section for CT value vs. rise time.

• Notebooks/Netbooks

(2) This feature discharges output of the switch to GND through a

220-Ω resistor, preventing the output from floating.

• Tablet PC

• Consumer Electronics

• Set-top Boxes/Residental Gateways

• Telecom Systems

• Solid State Drives (SSD)

Figure 1. Typical Application

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.

2Ultrabook is a trademark of Intel.

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 (26 pages)

PAGE 1
TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 DUAL-CHANNEL, ULTRA-LOW RESISTANCE LOAD SWITCH Check for Samples: TPS22966 FEATURES 1 • • • 2 • • • • • • • Integrated Dual-Channel Load Switch Input Voltage Range: 0.8V to 5.5V Ultra low RON Resistance – RON = 18 mΩ at VIN = 5 V (VBIAS = 5 V) – RON = 18 mΩ at VIN = 3.6 V (VBIAS = 5 V) – RON = 18 mΩ at VIN = 1.
PAGE 2
TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 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. ORDERING INFORMATION See package option addendum for orderable part numbers. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) (2) VALUE UNIT (2) VIN1,2 Input voltage range –0.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 RECOMMENDED OPERATING CONDITIONS MIN MAX UNIT VIN1,2 Input voltage range 0.8 VBIAS V VBIAS Bias voltage range 2.5 5.5 V VON1,2 ON voltage range 0 5.5 V VOUT1,2 Output voltage range VIN V VIH High-level input voltage, ON VBIAS = 2.5 V to 5.5 V 1.2 5.5 V VIL Low-level input voltage, ON VBIAS = 2.5 V to 5.5 V 0 0.5 V CIN1,2 (1) Input capacitor 1 (1) µF Refer to Application Information section.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com ELECTRICAL CHARACTERISTICS Unless otherwise noted, the specification in the following table applies over the operating ambient temp –40°C ≤ TA ≤ 85°C (full) and VBIAS = 2.5 V. Typical values are for TA = 25°C unless otherwise noted. PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT POWER SUPPLIES AND CURRENTS IIN(VBIAS-ON) VBIAS quiescent current (both channels) IOUT1 = IOUT2 = 0 mA, VIN1,2 = VON1,2 = VBIAS = 2.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 SWITCHING CHARACTERISTIC MEASUREMENT INFORMATION VIN VOUT CTx CIN = 1μF ON + - (A) ON CL RL OFF VBIAS GND TPS22966 GND GND Single channel shown for clarity. TEST CIRCUIT VON 50% 50% tOFF tON VOUT 50% 50% tf tr 90% VOUT 10% 90% 10% 10% tD tON /t OFF WAVEFORMS (A) Rise and fall times of the control signal is 100ns. Figure 2.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com FUNCTIONAL BLOCK DIAGRAM VIN1 ON1 Control Logic CT1 VOUT1 GND VBIAS Charge Pump VOUT2 CT2 ON2 Control Logic VIN2 Figure 3. Functional Block Diagram Table 2.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 DPU PACKAGE 1 14 14 1 VIN1 VOUT1 VOUT1 VIN1 VIN1 VOUT1 VOUT1 VIN1 ON1 CT 1 CT 1 ON1 VBIAS GND GND ON2 CT2 CT2 ON2 VIN2 VOUT2 VOUT2 VIN2 VIN2 VOUT2 VOUT2 VIN2 Top View VBIAS Bottom View PIN TABLE TPS22966 DPU PIN NAME I/O DESCRIPTION 1 VIN1 I Switch #1 input. Recommended voltage range for this pin for optimal RON performance is 0.8V to VBIAS.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com TYPICAL CHARACTERISTICS VBIAS vs. QUIESCENT CURRENT (BOTH CHANNELS) VBIAS vs. QUIESCENT CURRENT (SINGLE CHANNEL) 100 95 90 85 70 −40C 25C 85C 70C 65 60 80 55 75 50 IIN_VBIAS (µA) IIN_VBIAS (µA) 70 65 60 55 50 45 40 25 10 2.5 2.75 40 35 25 30 15 45 30 35 20 −40C 25C 85C 70C 20 VIN1=VIN2=VBIAS, VON1=VON2=5V, VOUT=Open SW1= On, SW2=On 3 3.25 3.5 3.75 4 4.25 4.5 4.75 VBIAS (V) 5 15 10 2.5 2.75 5.25 5.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 TYPICAL CHARACTERISTICS (continued) TEMPERATURE vs. RON (VBIAS = 2.5V, SINGLE CHANNEL) TEMPERATURE vs. RON (VBIAS = 5.5V, SINGLE CHANNEL) 26 25 24 23 22 VIN =0.8V VIN =1.05 VIN =1.2 VIN=1.5V VIN = 1.8V VIN = 2.5V VIN =0.8V VIN =1.05 VIN =1.2 VIN=1.5V VIN = 1.8V VIN = 2.5V VIN = 3.3V VIN =3.6V VIN=4.2V VIN=5V VN=5.5V 21.5 21 20.5 20 19.5 19 Ron (mΩ) Ron (mΩ) 22 21 20 18.5 18 17.5 17 19 16.5 18 16 15.5 17 15 16 14.5 VBIAS =2.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN vs. RON (TA = 25°C, SINGLE CHANNEL) VIN vs. RPD (VBIAS = 5.5V, SINGLE CHANNEL) 23 216 Temperature=25C, IOUT=−200mA VBIAS = 2.5V VBIAS = 3.3V VBIAS = 3.6V VBIAS= 4.2V VBIAS = 5V VBIAS = 5.5V 22.5 22 21.5 IPD=1mA, VBIAS=5.5V, VON=0V −40C 85C 25C 70C 212 Rpd (Ω) Ron (mΩ) 21 20.5 20 208 19.5 19 18.5 204 18 17.5 17 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 VIN (V) 4 200 0.8 1.2 1.6 4.4 4.8 5.2 5.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 TYPICAL CHARACTERISTICS (continued) VIN vs. tD (VBIAS = 5.5V, CT = 1nF) VIN vs. tF (VBIAS = 2.5V, CT = 1nF) 24 650 VBIAS = 5.5V, CT = 1nf VBIAS = 2.5V CT = 1nf 600 −40C 25C 70C 85C 20 550 500 tFall (µs) tD (µs) 16 450 12 8 400 −40C 25C 70C 85C 350 300 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 VIN (V) 4 4 0 0.8 4.4 4.8 5.2 5.5 1 1.2 1.4 1.6 1.8 VIN (V) 2 2.2 2.4 2.6 G035 G036 VIN vs. tF (VBIAS = 5.5V, CT = 1nF) VIN vs.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN vs. tOFF (VBIAS = 5.5V, CT = 1nF) VIN vs. tON (VBIAS = 2.5V, CT = 1nF) 2500 250 225 VBIAS = 5.5V CT = 1nf −40C 25C 70C 85C 200 −40C 25C 70C 85C 2400 2300 2200 2100 175 2000 tOn (µs) tOff (µs) 150 125 100 1900 1800 1700 1600 75 1500 50 1400 1300 25 VBIAS = 2.5V CT = 1nf 1200 0 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 VIN (V) 4 1100 0.8 4.4 4.8 5.2 5.6 1 1.2 1.4 1.6 1.8 VIN (V) 2 2.2 2.
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TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 TYPICAL CHARACTERISTICS (continued) VIN vs. tR (VBIAS = 5.5V, CT = 1nF) VBIAS vs. tR (VIN = 2.5V, CT = 1nF) 2000 1750 3000 −40C 25C 70C 85C 2500 1500 2250 2000 1250 tRise (µs) tRise (µs) −40C 25C 70C 85C 2750 1000 1750 1500 1250 750 1000 500 750 VBIAS = 5.5V CT = 1nf 250 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 VIN (V) 4 4.4 4.8 5.2 5.6 VIN = 2.5V CT = 1nf 500 2.5 2.8 3 3.2 3.5 3.8 4 4.2 4.5 4.8 VBIAS (V) 5 5.2 5.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com TYPICAL AC SCOPE CAPTURES @ TA = 25ºC, CT = 1nF TURN-ON RESPONSE TIME = 0.8V, VBIAS = 2.5V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-ON RESPONSE TIME (VIN = 0.8V, VBIAS = 5.0V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-ON RESPONSE TIME (VIN = 2.5V, VBIAS = 2.5V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-ON RESPONSE TIME (VIN = 5.0V, VBIAS = 5.0V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-OFF RESPONSE TIME (VIN = 0.8V, VBIAS = 2.5V, CIN = 1µF, CL = 0.
PAGE 15
TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 TYPICAL AC SCOPE CAPTURES @ TA = 25ºC, CT = 1nF (continued) TURN-OFF RESPONSE TIME (VIN = 2.5V, VBIAS = 2.5V, CIN = 1µF, CL = 0.1µF, RL = 10Ω) TURN-OFF RESPONSE TIME (VIN = 5.0V, VBIAS = 5.0V, CIN = 1µF, CL = 0.
PAGE 16
TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com APPLICATION INFORMATION ON/OFF CONTROL The ON pins control 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 or higher GPIO voltage.
PAGE 17
TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 ADJUSTABLE RISE TIME A capacitor to GND on the CTx pins sets the slew rate for each channel. To ensure desired performance, a capacitor with a minimum voltage rating of 25V should be used on the CTx pin. An approximate formula for the relationship between CTx and slew rate is (the equation below accounts for 10% to 90% measurement on VOUT and does NOT apply for CTx = 0pF. Use table below to determine rise times for when CTx = 0pF): SR = 0.
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TPS22966 SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 www.ti.com BOARD LAYOUT AND THERMAL CONSIDERATIONS For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal operation. Using wide traces for VIN, VOUT, and GND helps minimize the parasitic electrical effects along with minimizing the case to ambient thermal impedance.
PAGE 19
TPS22966 www.ti.com SLVSBH4C – JUNE 2012 – REVISED JUNE 2013 REVISION HISTORY Changes from Original (June 2012) to Revision A Page • Updated VBIAS vs. QUIESCENT CURRENT (BOTH CHANNELS) Y-axis Units. .................................................................. 8 • Updated VBIAS vs. QUIESCENT CURRENT (SINGLE CHANNEL) Y-axis Units. ................................................................. 8 Changes from Revision A (July 2012) to Revision B Page • Updated Typical Application Schematic .
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Nov-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) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS22966DPUR WSON DPU 14 3000 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1 TPS22966DPUT WSON DPU 14 250 180.0 8.4 2.25 3.25 1.05 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Nov-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS22966DPUR WSON DPU 14 3000 210.0 185.0 35.0 TPS22966DPUT WSON DPU 14 250 210.0 185.0 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.