Switch. TPS22959 Datasheet

TPS22959 Datasheet PDF


Part

TPS22959

Description

On-Resistance Load Switch

Manufacture

etcTI

Page 29 Pages
Datasheet
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TPS22959 Datasheet
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TPS22959
SLVSCN2B – JUNE 2014 – REVISED JULY 2015
TPS22959 5.5-V, 15-A, 4.4-mΩ On-Resistance Load Switch
1 Features
1 Integrated Single Channel Load Switch
• VBIAS Voltage Range: 2.5 V to 5.5 V
• VIN Voltage Range: 0.8 V to 5.5 V
• Ultra Low RON Resistance
– RON = 4.4 mat VIN = 5 V (VBIAS = 5 V)
• 15 A Maximum Continuous Switch Current
• Low Quiescent Current
– (20 µA for VBIAS = 5 V)
• Low Shutdown Current
– (1 µA for VBIAS = 5 V)
• Low Control Input Threshold Enables Use of 1.2 V
or Higher GPIO
• Controlled and Fixed Slew Rate Across VBIAS and
VIN
– tR = 2663 µs at VIN = 5 V (VBIAS = 5 V)
• Quick Output Discharge (QOD)
• SON 8-Pin Package with Thermal Pad
• ESD Performance Tested per JESD 22
– 2-kV Human-Body Model (HBM)
– 1-kV Charged-Device Model (CDM)
2 Applications
• Servers
• Medical
• Telecom Systems
• Computing
• Industrial Systems
• High Current Voltage Rails
3 Description
The TPS22959 is a small, ultra-low RON, single
channel load switch with controlled turn on. The
device contains an N-channel MOSFET that can
operate over an input voltage range of 0.8 V to 5.5 V
and supports a maximum continuous current of 15 A.
The combination of ultra-low RON and high current
capability of the device makes it ideal for driving
processor rails with very tight voltage dropout
tolerances. The controlled rise time of the device
greatly reduces inrush current caused by large bulk
load capacitances, thereby reducing or eliminating
voltage droop on the power supply. The switch can
be independently controlled via the ON pin, which is
capable of interfacing directly with low-voltage control
signals originating from microcontrollers or low
voltage discrete logic. The device further reduces the
total solution size by integrating a 224-Ω pull-down
resistor for quick output discharge (QOD) when the
switch is turned off.
The TPS22959 is available in a small 3.00 mm x 3.00
mm WSON-8 package (DNY). The DNY package
integrates a thermal pad which allows for high power
dissipation in high current and high temperature
applications. The device is characterized for
operation over the free-air temperature range of
–40°C to 105°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22959
WSON (8)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
VBIAS
(2.5 V to 5.5 V)
Power
Supply
CIN
VIN VOUT
ON
OFF
ON GND
TPS22959
CL
Load
1
RON vs VIN (VBIAS = 5 V, IOUT = –200 mA)
7.0
-40°C
6.5 25°C
85°C
6.0 105°C
5.5
5.0
4.5
4.0
3.5
3.0
0.0 1.0 2.0 3.0 4.0 5.0 6.0
VIN (V)
D008
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.

TPS22959 Datasheet
TPS22959
SLVSCN2B – JUNE 2014 – REVISED JULY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Schematic............................................. 1
5 Revision History..................................................... 2
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 3
7.1 Absolute Maximum Ratings ...................................... 3
7.2 ESD Ratings ............................................................ 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics, VBIAS = 5.0 V ................... 5
7.6 Electrical Characteristics, VBIAS = 2.5 V ................... 6
7.7 Switching Characteristics .......................................... 7
7.8 Typical Characteristics .............................................. 9
8 Detailed Description ............................................ 14
8.1 Overview ................................................................. 14
8.2 Functional Block Diagram ....................................... 14
8.3 Feature Description................................................. 14
8.4 Device Functional Modes........................................ 15
9 Applications and Implementation ...................... 16
9.1 Application Information............................................ 16
9.2 Typical Application .................................................. 16
10 Power Supply Recommendations ..................... 19
11 Layout................................................................... 19
11.1 Layout Guidelines ................................................. 19
11.2 Layout Example .................................................... 20
12 Device and Documentation Support ................. 21
12.1 Community Resources.......................................... 21
12.2 Trademarks ........................................................... 21
12.3 Electrostatic Discharge Caution ............................ 21
12.4 Glossary ................................................................ 21
13 Mechanical, Packaging, and Orderable
Information ........................................................... 21
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (June 2014) to Revision B
Page
• Updated TA ratings in datasheet from 85°C to 105°C. ........................................................................................................... 1
Changes from Original (May 2014) to Revision A
Page
• Initial release of full version. .................................................................................................................................................. 1
2 Submit Documentation Feedback
Product Folder Links: TPS22959
Copyright © 2014–2015, Texas Instruments Incorporated


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22959 SLVSCN2B – JUNE 2 014 – REVISED JULY 2015 TPS22959 5.5- V, 15-A, 4.4-mΩ On-Resistance Load Swi tch 1 Features •1 Integrated Single Channel Load Switch • VBIAS Voltage R ange: 2.5 V to 5.5 V • VIN Voltage Ra nge: 0.8 V to 5.5 V • Ultra Low RON R esistance – RON = 4.4 mΩ at VIN = 5 V (VBIAS = 5 V) • 15 A Maximum Conti nuous Switch Current • Low Quiescent Current – (20 µA for VBIAS = 5 V) Low Shutdown Current – (1 µA for V BIAS = 5 V) • Low Control Input Thres hold Enables Use of 1.2 V or Higher GPI O • Controlled and Fixed Slew Rate Ac ross VBIAS and VIN – tR = 2663 µs at VIN = 5 V (VBIAS = 5 V) • Quick Outp ut Discharge (QOD) • SON 8-Pin Packag e with Thermal Pad • ESD Performance Tested per JESD 22 – 2-kV Human-Body Model (HBM) – 1-kV Charged-Device Mod el (CDM) 2 Applications • Servers • Medical • Telecom Systems • Computing • Industrial Systems • High Current Voltage Rails 3 Description The TPS22.
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