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TPS2223A Datasheet

  • TPS2223A

  • 用于串行 PCMCIA 控制器的雙槽 Cardbus 功率接口開(kāi)關(guān)

  • 31頁(yè)

  • TI

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TPS2220A, TPS2223A
TPS2224A, TPS2226A
SLVS428B 鈥?MAY 2002 鈥?REVISED SEPTEMBER 2004
CARDBUS POWER-INTERFACE SWITCHES
FOR SERIAL PCMCIA CONTROLLERS
FEATURES
鈥?/div>
Single-Slot Switch: TPS2220A
Dual-Slot Switches: TPS2223A, TPS2224A,
TPS2226A
Fast Current Limit Response Time
Fully Integrated VCC and VPP Switching for
3.3 V, 5 V, and 12 V (no 12 V on TPS2223A)
Meets Current PC Card鈩?Standards
V
pp
Output Selection Independent of V
CC
12-V and 5-V Supplies Can Be Disabled
TTL-Logic Compatible Inputs
Short-Circuit and Thermal Protection
24-Pin HTSSOP, 24- or 30-Pin SSOP
140-碌A(chǔ) (Typical) Quiescent Current from
3.3-V Input
Break-Before-Make Switching
Power-On Reset
40擄C to 85擄C Operating Ambient Temperature
Range
APPLICATIONS
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Notebook and Desktop Computers
Bar Code Scanners
Digital Cameras
Set-Top Boxes
PDAs
TPS2223A, TPS2224A
DB OR PWP PACKAGE
(TOP VIEW)
5V
5V
DATA
CLOCK
LATCH
NC
12V
鈥?/div>
AVPP
AVCC
AVCC
GND
RESET
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
5V
NC
NC
SHDN
12V
鈥?/div>
BVPP
BVCC
BVCC
NC
OC
3.3V
3.3V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
NC 鈭?No internal connection
鈥?/div>
Pin 7 and 20 are NC for
TPS2223A.
DESCRIPTION
The TPS2223A, TPS2224A, and TPS2226A CardBus鈩?power-interface switches provide an integrated
power-management solution for two PC Card sockets. The TPS2220A is a single-slot option for this family of
devices. These devices allow the controlled distribution of 3.3 V, 5 V, and 12 V to each card slot. The
current-limiting and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user
isolate a system fault. The switch r
DS(on)
and current-limit values have been set for the peak and average current
requirements stated in the PC Card specification, and optimized for cost. A faster maximum current limit
response time is the only difference between the TPS2223A, TPS2224A, and TPS2226A and the TPS2223,
TPS2224, and TPS2226.
Like the TPS2214 and TPS2214A and the TPS2216 and TPS2216A, this family of devices supports independent
VPP/VCC switching; however, the standby and interface-mode pins are not supported. Shutdown mode is now
supported independently on SHDN as well as in the serial interface. Optimized for lower power implementation,
the TPS2223A does not support 12-V switching to VPP. See the available options table for pin-compatible device
information.
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, CardBus are trademarks of PCMCIA (Personal Computer Memory Card International Association).
PowerPAD is a trademark of Texas Instruments.
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 漏 2002鈥?004, Texas Instruments Incorporated

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