Switch. TPS22934 Datasheet

TPS22934 Datasheet PDF


Part

TPS22934

Description

Load Switch

Manufacture

etcTI

Page 25 Pages
Datasheet
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TPS22934 Datasheet
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TPS22934
SLVSAD4B – AUGUST 2010 – REVISED APRIL 2015
Ultra-Small, Low-Input-Voltage, Low rON Load Switch
With Hysteresis Control Input
1 Features
1 Integrated Single Channel Load Switch
• Input Voltage: 1.5 V to 3.6 V
• ON-Resistance
– rDS(ON) = 63 mat VIN = 3.6 V
– rDS(ON) = 69 mat VIN = 2.5 V
– rDS(ON) = 78 mat VIN = 1.8 V
– rDS(ON) = 87 mat VIN = 1.5 V
• 1-A Maximum Continuous Switch Current
• Integrated Hysteresis Enable Input (ON Pin)
Allows Easy Power-Rail Sequencing
• Controlled Slew Rate Option: 26 µs at 3.6 V
• Quick Output Discharge Transistor
• Ultra-Small CSP-4 Package
• ESD Performance Tested Per JESD 22
– 3000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
2 Applications
• Battery-Powered Equipment
• Portable Industrial Equipment
• Portable Medical Equipment
• Portable Media Players
• Point-of-Sales Terminals
• GPS Devices
• Digital Cameras
• Portable Instrumentation
• Smart Phones
3 Description
The TPS22934 is a small, low ON-resistance (rON)
load switch with controlled turnon. The devices
contain a P-channel MOSFETs that can operate over
an input voltage range of 1.5 V to 3.6 V.
The switch is controlled by an ON/OFF input (ON),
which has built-in hysteresis (VTH+(typ) = 2.35 V)
allowing an easy use of TPS22934 in power-rail
sequencing applications.
In the TPS22934 a 35-Ω on-chip load resistor is
added for output quick discharge when switch is
turned off.
In the TPS22934, the rise time of the device is
internally controlled to avoid inrush current. The
TPS22934 features a typical rise time of 26 µs with a
3.6-V input.
The the TPS22934 is available in an ultra-small
space-saving 4-pin CSP package and is
characterized for operation over the free-air
temperature range of –40ºC to 85ºC.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS22934
DSBGA (4)
0.90 mm × 0.90 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
1.8-V Power-Rail Sequencing
Li-ion
Battery
VREG=1.8V
VIN
CIN1
ON
GND
VREG=2.8V
CIN2
GND
VOUT
TPS22934
GND
LOAD 1
CL1
RL1
GND
LOAD 2
CL2
RL2
GND
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.

TPS22934 Datasheet
TPS22934
SLVSAD4B – AUGUST 2010 – REVISED APRIL 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Switching Characteristics: VIN = 3.6 V ...................... 6
6.7 Switching Characteristics: VIN = 2.5 V ...................... 6
6.8 Switching Characteristics: VIN = 1.8 V ...................... 6
6.9 Switching Characteristics: VIN = 1.5 V ...................... 6
6.10 Typical Characteristics ............................................ 7
7 Parameter Measurement Information ................ 12
8 Detailed Description ............................................ 13
8.1 Overview ................................................................. 13
8.2 Functional Block Diagram ....................................... 13
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 14
9 Applications and Implementation ...................... 15
9.1 Application Information............................................ 15
9.2 Typical Application .................................................. 16
10 Power Supply Recommendations ..................... 17
11 Layout................................................................... 17
11.1 Layout Guidelines ................................................. 17
11.2 Layout Example .................................................... 17
11.3 Thermal Considerations ........................................ 18
12 Device and Documentation Support ................. 19
12.1 Trademarks ........................................................... 19
12.2 Electrostatic Discharge Caution ............................ 19
12.3 Glossary ................................................................ 19
13 Mechanical, Packaging, and Orderable
Information ........................................................... 19
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (June 2013) to Revision B
Page
• Added ESD Ratings 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
• Moved Operating free-air temperature row from Absolute Maximum Ratings to Recommended Operating Conditions ..... 4
• Deleted Dissipation Ratings table and replaced it with Thermal Information table ............................................................... 4
Changes from Original (August 2010) to Revision A
Page
• Updated package reference from YZP to YZV throughout document.................................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: TPS22934
Copyright © 2010–2015, Texas Instruments Incorporated


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22934 SLVSAD4B – AUGUST 2010 – REVISED APRIL 2015 Ultra-Smal l, Low-Input-Voltage, Low rON Load Swit ch With Hysteresis Control Input 1 Fea tures •1 Integrated Single Channel Lo ad Switch • Input Voltage: 1.5 V to 3 .6 V • ON-Resistance – rDS(ON) = 63 mΩ at VIN = 3.6 V – rDS(ON) = 69 m Ω at VIN = 2.5 V – rDS(ON) = 78 m at VIN = 1.8 V – rDS(ON) = 87 mΩ at VIN = 1.5 V • 1-A Maximum Continuo us Switch Current • Integrated Hyster esis Enable Input (ON Pin) Allows Easy Power-Rail Sequencing • Controlled Sl ew Rate Option: 26 µs at 3.6 V • Qui ck Output Discharge Transistor • Ultr a-Small CSP-4 Package • ESD Performan ce Tested Per JESD 22 – 3000-V Human- Body Model (A114-B, Class II) – 1000- V Charged-Device Model (C101) 2 Applica tions • Battery-Powered Equipment • Portable Industrial Equipment • Port able Medical Equipment • Portable Media Players • Point-of-Sales Terminals • GPS Devices • Digital Cameras • Por.
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