Document
RGP PW
PWP
DAP
TPS2231 TPS2236
www.ti.com.................................................................................................................................................. SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009
ExpressCard™ POWER INTERFACE SWITCH
Check for Samples: TPS2231 TPS2236
FEATURES
1
•23 Meets the ExpressCard™ Standard (ExpressCard|34 or ExpressCard|54)
• Compliant with the ExpressCard™ Compliance Checklists
• Fully Satisfies the ExpressCard™ Implementation Guidelines
• Supports Systems with WAKE Function • TTL-Logic Compatible Inputs • Short Circuit and Thermal Protection • –40°C to 85°C Ambient Operating
Temperature Range
• Available in a 20-pin TSSOP, a 20-pin QFN, or 24-pin PowerPAD™ HTSSOP (Single)
• Available in a 32-pin PowerPAD™ HTSSOP (Dual)
APPLICATIONS
• Notebook Computers • Desktop Computers • Personal Digital Assistants (PDAs) • Digital Cameras • TV and Set Top Boxes
DESCRIPTION
The TPS2231 and TPS2236 ExpressCard power interface switches provide the total power management solution required by the ExpressCard specification. The TPS2231 and TPS2236 ExpressCard power interface switches distribute 3.3 V, AUX, and 1.5 V to the ExpressCard socket. Each voltage rail is protected with integrated current-limiting circuitry.
The TPS2231 supports systems with single-slot ExpressCard|34 or ExpressCard|54 sockets. The TPS2236 supports systems with dual-slot ExpressCard sockets.
End equipment for the TPS2231 and TPS2236 include notebook computers, desktop computers, personal digital assistants (PDAs), and digital cameras.
Host Power Source
Host Chip Set/Lock Circuits
AUXIN
AUXOUT
3.3VIN
3.3VOUT
1.5VIN
1.5VOUT
TPS2231
SHDN STBY
SYSRST OC
GND
PERST CPPE
CPUSB
RCLKEN REFCLK+ REFCLK−
ExpressCard Connector Host Connector
Express Card
1
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. PowerPAD is a trademark of Texas Instruments.
2
ExpressCard is a trademark of Personal Computer Memory Card International Association.
3
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.
Copyright © 2004–2009, Texas Instruments Incorporated
TPS2231 TPS2236
SLVS536J – JULY 2004 – REVISED SEPTEMBER 2009.................................................................................................................................................. www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
TA –40°C to 85°C
AVAILABLE OPTIONS
NUMBER OF CHANNELS
TSSOP
PACKAGED DEVICES (1) (2) PowerPAD HTSSOP
Single
TPS2231PW
TPS2231PWP
Dual
TPS2236DAP
QFN
TPS2231RGP TPS2231MRGP (3) TPS2231MRGP-1 (4) TPS2231MRGP-2 (5) TPS2231MRGP-3 (6)
(1) The package is available taped and reeled. Add an R suffix to device types (e.g., TPS2231PWPR). (2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com. (3) The TPS2231MRGP is identical to the TPS2231 with the exception of the PowerPAD dimensions. See the Thermal Pad Mechanical
data portion of this data sheet for specific information. The thermal pad for the TPS2231MRGP and TPS2231MRGP-1 is 2,2 mm × 2,2 mm; the thermal pad for the TPS2231RGP is 2,7 mm × 2,7 mm. (4) The TPS2231MRGP-1 is identical to the TPS2231MGRP with the exception that the orientation of the part in the reel is rotated 180°. See the Package Materials Information portion of this data sheet for specific information. (5) The TPS2231MRGP-2 is identical to the TPS2231MRGP with the exception that the orientation of the part in the reel is rotated 90° and does not have an internal pull-up resistor between AUX IN and SYSRST. See the Package Materials Information portion of this data sheet for specific information. (6) The TPS2231MRGP-3 is identical to the TPS2231MRGP with the exception that the 1.5VIN and 3.3VIN UVLO circuits are independent.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
VI
VO
IO
TJ Tstg ESD
Input voltage range for card power
Logic input/output voltage
VI(3.3VIN) VI(1.5VIN) VI(AUXIN)
VO(3.3VOUT)
Output voltage range
VO(1.5VOUT)
VO(AUXOUT)
Continuous total power diss.