TPS2212 - 具有并行接口的 0.3A 单槽 PC 卡电源开关

TPS2212是TI德州仪器公司的一款PCMCIA/Cardbus开关矩阵产品，TPS2212是具有并行接口的 0.3A 单槽 PC 卡电源开关，本站介绍了TPS2212的封装应用图解、特点和优点、功能等，并给出了与TPS2212相关的TI元器件型号供参考。

TPS2212 - 具有并行接口的 0.3A 单槽 PC 卡电源开关 - PCMCIA/Cardbus开关矩阵 - 保护、监控和热插拔 - 德州仪器

产品描述

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 that need to limit the power provided to the PC card because of 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 that the TPS2211 provides for higher-power applications.

产品特性

Fully Integrated VCC and Vpp Switching for Low Power Single-Slot PC Card&l#153; Interface
Low rDS(on) (160-m VCC Switches)
Low Current Limit, 450 mA (VCC) Typ
3.3-V Low-Voltage Mode
12-V Supply Can Be Disabled Except During 12-V Flash Programming
Short-Circuit and Thermal Protection
Space-Saving 16-Pin SSOP (DB)
Compatible With 3.3-V, 5-V, and 12-V PC Cards
Break-Before-Make Switching
Typical Applications Include: PCMCIA PC Card Sockets in PDAs, PBXs, Bar Code Scanners, Compact Flash and Smart Cards

PC Card is a trademark of PCMCIA (Personal Computer Memory Card International Association). LinBiCMOS is a trademark of Texas Instruments.

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