TPS2212 Datasheet, PDF (1/20 Pages) Texas Instruments – SINGLE-SLOT, PARALLEL INTERFACE POWER SWITCH FOR LOW POWER PC CARD SLOTS

TPS2212
SINGLE-SLOT, PARALLEL INTERFACE POWER SWITCH
FOR LOW POWER PC CARD SLOTS
SLVS193 – APRIL 1999
D Fully Integrated V_CC and V_pp Switching for
Low Power Single-Slot PC Card™ Interface
D Low r_DS(on) (160-mΩ V_CC Switches)
D Low Current Limit, 450 mA (V_CC) Typ
D 3.3-V Low-Voltage Mode
D 12-V Supply Can Be Disabled Except
During 12-V Flash Programming
D Short-Circuit and Thermal Protection
D Space-Saving 16-Pin SSOP (DB)
D Compatible With 3.3-V, 5-V, and 12-V PC
Cards
D Break-Before-Make Switching
D Typical Applications Include: PCMCIA PC
Card Sockets in PDAs, PBXs, Bar Code
Scanners, Compact Flash and Smart Cards
VCCD0
VCCD1
3.3V
3.3V
5V
5V
GND
OC
DB PACKAGE
(TOP VIEW)
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
SHDN
VPPD0
VPPD1
VCC
VCC
VCC
VPP
VPPI
description
The TPS2212 PC Card power-interface switch provides an integrated power-management solution for a single
low power PC Card. All of the discrete power MOSFETs, a logic section, current limiting, and thermal protection
for PC Card control are combined on a single integrated circuit, using the Texas Instruments LinBiCMOS™
process. The circuit allows the distribution of 3.3-V, 5-V, and/or 12-V card power, and is compatible with many
PCMCIA controllers. 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 the PC Card.
The TPS2212 features a 3.3-V low-voltage mode that allows for 3.3-V switching without the need for 5 V. Bias
power can be derived from either the 3.3-V or 5-V inputs. This facilitates low-power system designs such as
sleep mode and pager mode, where only 3.3 V is available.
End equipment for the TPS2212 includes notebook computers, desktop computers, personal digital assistants
(PDAs), digital cameras, and bar-code scanners. This device is well suited for those applications which need to
limit the power provided to the PC card due to power supply constraints. In many applications, such as palm
computers, the system cannot allocate more than 200 mA of current to a PC card slot. For these lower power
applications, the TPS2212 provides the same advanced level of protection as the TPS2211 provides for higher
power applications.
AVAILABLE OPTIONS
PACKAGED DEVICE
TA
SMALL OUTLINE
(DB)
–40°C to 85°C
TPS2212IDBLE
The DB package is only available left-end taped
and reeled (indicated by the LE suffix on the
device type, e.g. TPS2212IDBLE).
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.
PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association).
LinBiCMOS is a trademark of Texas Instruments Incorporated.
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.
Copyright © 1999, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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