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TPS2202AIDB-TPS2202AIDBLE-TPS2202AIDFLE
1A Dual-Slot PC Card Power Switch w/ Serial Interface
RESET Allows System Initialization of PCCards 12-V Supply Can Be Disabled Except
During 12-V 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 IDD = 83 μA Typ, IQ = 1 μA Low r DS(on) (160-mΩ VCC Switch) Break-Before-Make Switching
descriptionThe TPS2202AI PC Card power-interface switch provides an integrated power-management solution for two
PC Cards. All of the discrete power MOSFET s, a logic section, current limiting, thermal protection, and
power-good reporting for PC Card control are combined on a single integrated circuit (IC), using the Texas
Instruments LinBiCMOS process. The circuit allows the distribution of 3.3-V, 5-V, and/or 12-V card power by
means of the P2C (PCMCIA Peripheral-Control) Texas Instruments nonproprietary 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 specific card.
The TPS2202AI incorporates a reset function, selectable by one of two inputs, to help alleviate system errors.
The reset function enables PC Card initialization concurrent with host platform initialization, allowing a system
reset. Reset is accomplished by grounding the VCC and Vpp (flash-memory programming voltage) outputs,
which discharges residual card voltage.
End equipment for the TPS2202AI includes notebook computers, desktop computers, personal digital assistants
(PDAs), digital cameras, handiterminals, and bar-code scanners.
AVAILABLE OPTIONS The DB and DF packages are only available taped and reeled,
inidcated by the R suffix on the device type.
LinBiCMOS and P2C are trademarks of Texas Instruments.
PC Card and CardBus are trademarks of PCMCIA (Personal Computer Memory Card International Association).
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.
CLOCK
LATCH
RESET
12V
AVPP
AVCC
AVCC
AVCC
GND
APWR_GOOD
RESET
3.3VDD
12V
BVPP
BVCC
BVCC
BVCC
BPWR_GOOD
3.3V
3.3V
NC – No internal connection
