TPS2216

具有串行接口的 1A 双槽 PC 卡电源开关

The PC Card power-interface switch provides an integrated power-management solution for two PC Cards. 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. This device allows the distribution of 3.3-V, 5-V, and/or 12-V power to the card. The current-limiting feature eliminates the need for fuses. Current-limit reporting can help the user isolate a system fault.

The TPS2216 features a 3.3-V low-voltage mode that allows for 3.3-V switching without the need for 5-V power. This feature facilitates low-power system designs such as sleep modes where only 3.3 V is available. This device also has the ability to program the xVPP outputs independent of the xVCC outputs. A standby mode that changes all output-current limits to 50 mA typical has been incorporated.

End-equipment applications for the TPS2216 include: notebook computers, desktop computers, personal digital assistants PDAs, digital cameras, and bar-code scanners.

The TPS2216 is backward-compatible with the TPS2202A and TPS2206.

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Fully Integrated xVCC and xVPP Switching

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xVPP Programmed Independent of xVCC

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3.3-V, 5-V, and/or 12-V Power Distribution

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Low rDSon 60-m xVCC Switch Typical

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Short Circuit and Thermal Protection

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150-uA Maximum Quiescent Current

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Standby Mode: 50-mA Current Limit Typ

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12-V Supply Can Be Disabled

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3.3-V Low-Voltage Mode

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Meets PC CardTM Standards

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TTL-Logic Compatible Inputs

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Available in 30-Pin SSOP DB and 32-Pin TSSOP DAP Packages

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Break-Before-Make Switching

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Internal Power-On Reset

PC Card is a trademark of PCMCIA Personal Computer Memory Card International Association.

PowerPAD is a trademark of Texas Instruments Incorporated.