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TPS2202 Datasheet(PDF) 1 Page - Texas Instruments

Part No. TPS2202
Description  DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES FOR SERIAL PCMCIA CONTROLLERS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPS2202 Datasheet(HTML) 1 Page - Texas Instruments

 
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TPS2202, TPS2202Y
DUAL-SLOT PC CARD POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
SLVS103A – DECEMBER 1994 – REVISED AUGUST 1995
Copyright
© 1995, Texas Instruments Incorporated
6–1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Fully Integrated V
CC and Vpp Switching for
Dual-Slot PC Card Interface
Saves PCMCIA Controller I/O Leads by
Utilizing 3-Lead Serial Interface
Meets PCMCIA Standards
Internal Charge Pump (No External
Capacitors Required) – 12-V Supply Can Be
Disabled Except for Flash Programming
Short Circuit and Thermal Protection
Space-Saving 30-Pin SSOP(DB) Package
Compatible With 3.3-V, 5-V and 12-V PC
Cards
Power Saving I
DD = 83 µA Typ, IQ = 1 µA
Low r
DS(on) (160-mΩ VCC Switch)
Break-Before-Make Switching
ESD Protection Up to 2 kV Per
Mil-STD-883C, Method 3015
description
The TPS2202 PC Card (PCMCIA) power-interface switch provides an integrated power-management solution
for two PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, thermal protection, and
power-good reporting for PC Card control are combined on a single integrated circuit (IC), using Texas
Instruments LinBiCMOS
™ process. The circuit allows the distribution of 3-V, 5-V, and/or 12-V card power by
means of a reduced I/O serial interface. The current-limiting feature eliminates the need for fuses, which reduces
component count and improves reliability; current-limit reporting can help the user isolate a system fault to a
bad card.
The TPS2202 maximizes battery life by using an internal charge pump to generate its own switch-drive voltage.
Therefore, the 12-V supply can be powered down and only brought out of standby when flash memory needs
to be written to or erased. End equipment for the TPS2202 includes notebook computers, desktop computers,
personal digital assistants (PDAs), digital cameras, handiterminals, and bar-code scanners.
typical PC-card power-distribution application
PCMCIA
Controller
12 V
Power Supply
Vpp1
Vpp2
VCC
VCC
PC
Card A
VDD
TPS2202
5 V
3 V
BPWR_GOOD
OC
Serial Interface
3
Vpp1
Vpp2
VCC
VCC
PC
Card B
12V
5V
3V
AVPP
AVCC
AVCC
BVPP
BVCC
BVCC
APWR_GOOD
BVCC
AVCC
LinBiCMOS is a trademark of Texas Instruments Incorporated.
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5V
5V
DATA
CLOCK
LATCH
NC
12V
AVPP
AVCC
AVCC
AVCC
GND
APWR_GOOD
NC
3V
5V
NC
NC
NC
NC
VDD
12V
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
OC
3V
3V
DB OR DF PACKAGE
(TOP VIEW)
NC – No internal connection
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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