Switch. TPS22968N Datasheet

TPS22968N Datasheet PDF


Part

TPS22968N

Description

Ultra-Low Resistance Load Switch

Manufacture

etcTI

Page 30 Pages
Datasheet
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TPS22968N Datasheet
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TPS22968, TPS22968N
SLVSCG3F – JANUARY 2014 – REVISED JULY 2017
TPS22968 Dual Channel, Ultra-Low Resistance Load Switch
1 Features
1 Integrated Dual Channel Load Switch
• Input Voltage Range: 0.8 V to 5.5 V
• VBIAS Voltage Range: 2.5 V to 5.5 V
– Ideal for 1S Battery Configuration
• Ultra-Low RON Resistance
– RON = 27 mat VIN = 5 V (VBIAS = 5 V)
– RON = 25 mat VIN = 3.3 V (VBIAS = 5 V)
– RON = 25 mat VIN = 1.8 V (VBIAS = 5 V)
• 4-A Maximum Continuous Switch Current per
Channel
• Low Quiescent Current
– 55 µA at VBIAS = 5 V (Both Channels)
– 55 µA at VBIAS = 5 V (Single Channel)
• Low Control Input Threshold Enables Use of
1.2-,1.8-, 2.5-, 3.3-V Logic
• Configurable Rise Time(1)
• Quick Output Discharge (QOD)(2) (Optional)
• SON 14-Pin Package with Thermal Pad
• ESD Performance Tested per JEDEC Standard
– 2-kV HBM and 1-kV CDM
• Latch-Up Performance Exceeds 100 mA per
JESD 78, Class II
• GPIO Enable – Active High
• TPS22968N: Product Preview Only
(1) See the Application Information section for CT value vs. rise
time
(2) This feature discharges the output of the switch to GND
through a 270-Ω resistor, preventing the output from floating.
2 Applications
• Ultrabook™
• Notebooks and Netbooks
• Tablets
• Consumer Electronics
• Set-Top Boxes
• Telecom Systems
3 Description
The TPS22968x is a small, ultra-low RON, dual-
channel load switch with controlled turn on. The
device contains two N-channel MOSFETs that can
operate over an input voltage range of 0.8 to 5.5 V
and can support a maximum continuous current of
4 A per channel. Each switch is independently
controlled by an on and off input (ON1 and ON2),
which is capable of interfacing directly with low-
voltage control signals. In TPS22968, a 270-Ω on-
chip load resistor is added for output quick discharge
when switch is turned off.
The TPS22968x is available in a small, space-saving
package (DPU) with integrated thermal pad allowing
for high power dissipation. The device is
characterized for operation over the free-air
temperature range of –40 to +105°C.
Device Information (1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22968
TPS22968N
WSON (14)
3.00 mm × 2.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
Dual Power
Supply
Or
Dual DC/DC
converter
CIN
CIN
ON
OFF
VIN1
ON1
VBIAS
VOUT1
CT1
CT2
CL RL
GND
ON
OFF
VOUT2
ON2
CL RL
TPS22968x GND
GND
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS22968N Datasheet
TPS22968, TPS22968N
SLVSCG3F – JANUARY 2014 – REVISED JULY 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison ............................................... 4
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics (VBIAS = 5 V) ..................... 6
7.6 Electrical Characteristics (VBIAS = 2.5 V) .................. 7
7.7 Switching Characteristics .......................................... 8
7.8 Typical DC Characteristics........................................ 8
7.9 Typical AC Characteristics...................................... 12
8 Parameter Measurement Information ................ 14
9 Detailed Description ............................................ 15
9.1 Overview ................................................................. 15
9.2 Functional Block Diagram ....................................... 15
9.3 Feature Description................................................. 16
9.4 Device Functional Modes........................................ 17
10 Application and Implementation........................ 18
10.1 Application Information.......................................... 18
10.2 Typical Application ................................................ 21
11 Power Supply Recommendations ..................... 24
12 Layout................................................................... 24
12.1 Layout Guidelines ................................................. 24
12.2 Layout Example .................................................... 24
13 Device and Documentation Support ................. 25
13.1 Device Support .................................................... 25
13.2 Documentation Support ....................................... 25
13.3 Related Links ........................................................ 25
13.4 Receiving Notification of Documentation Updates 25
13.5 Community Resources.......................................... 25
13.6 Trademarks ........................................................... 25
13.7 Electrostatic Discharge Caution ............................ 26
13.8 Glossary ................................................................ 26
14 Mechanical, Packaging, and Orderable
Information ........................................................... 26
4 Revision History
Changes from Revision D (March 2016) to Revision E
Page
• Changed QOD description from (TPS22968 only) to (Optional) in Features section ............................................................ 1
Changes from Revision E (July 2016) to Revision F
Page
• Changed Functional Block Diagram ....................................................................................................................................... 1
Changes from Revision C (October 2015) to Revision D
Page
• Made Changes to Thermal Considerations .......................................................................................................................... 22
Changes from Revision B (June 2015) to Revision C
Page
• Updated information for TPS22968N release. ...................................................................................................................... 1
• Updated “TEST CONDITIONS” for RON. ............................................................................................................................. 6
• Updated “TEST CONDITIONS” for RON. ............................................................................................................................. 7
Changes from Revision A (July 2014) to Revision B
Page
• Updated Typical Characteristics graphs. ............................................................................................................................... 8
Changes from Original (January 2014) to Revision A
Page
• Added Handling Rating table, Feature Description section, Device Functional Modes, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section ............................................................... 1
2 Submit Documentation Feedback
Copyright © 2014–2017, Texas Instruments Incorporated
Product Folder Links: TPS22968 TPS22968N


Features Datasheet pdf Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TPS22968, TPS22968N SLVSCG3F JANUARY 2014 – REVISED JULY 2017 TP S22968 Dual Channel, Ultra-Low Resistan ce Load Switch 1 Features •1 Integra ted Dual Channel Load Switch • Input Voltage Range: 0.8 V to 5.5 V • VBIAS Voltage Range: 2.5 V to 5.5 V – Idea l for 1S Battery Configuration • Ultr a-Low RON Resistance – RON = 27 mΩ at VIN = 5 V (VBIAS = 5 V) – RON = 25 mΩ at VIN = 3.3 V (VBIAS = 5 V) – RON = 25 mΩ at VIN = 1.8 V (VBIAS = 5 V) • 4-A Maximum Continuous Switch C urrent per Channel • Low Quiescent Cu rrent – 55 µA at VBIAS = 5 V (Both C hannels) – 55 µA at VBIAS = 5 V (Sin gle Channel) • Low Control Input Thre shold Enables Use of 1.2-,1.8-, 2.5-, 3 .3-V Logic • Configurable Rise Time(1 ) • Quick Output Discharge (QOD)(2) ( Optional) • SON 14-Pin Package with T hermal Pad • ESD Performance Tested p er JEDEC Standard – 2-kV HBM and 1-kV CDM • Latch-Up Performance Exceeds 100 mA per JESD 78, Class II • GPIO .
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