TPS2220B - 单 PC 卡串行接口电源开关

TPS2220B是TI德州仪器公司的一款PCMCIA/Cardbus开关矩阵产品，TPS2220B是单 PC 卡串行接口电源开关，本站介绍了TPS2220B的封装应用图解、特点和优点、功能等，并给出了与TPS2220B相关的TI元器件型号供参考。

TPS2220B - 单 PC 卡串行接口电源开关 - PCMCIA/Cardbus开关矩阵 - 保护、监控和热插拔 - 德州仪器

产品描述

The TPS2220B power-interface switch provides an integrated power-management solution for single Card sockets. The device allows the controlled distribution of 3.3 V, 5 V, and 12 V to one 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 rDS(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.

Like the TPS2220A this device supports independent VPP/VCC switching. The TPS2220B is pin compatible with the TPA2220A execept for pin 20 of the TPS2220B which has no connection.

产品特性

Single-Slot Switch: TPS2220B
Fast Current Limit Response Time
Fully Integrated VCC and VPP Switching for 3.3 V, 5 V, and 12 V
Meets Current PC Card™ Standards
Vpp Output Selection Independent of VCC
12-V and 5-V Supplies Can Be Disabled
TTL-Logic Compatible Inputs
Short-Circuit and Thermal Protection
24-Pin HTSSOP and 24-Pin SSOP
140-µA (Typical) Quiescent Current from 3.3-V Input
Break-Before-Make Switching
Power-On Reset
–40°C to 85°C Operating Ambient Temperature Range
APPLICATIONS
- Notebook and Desktop Computers
- Bar Code Scanners
- Digital Cameras
- Set-Top Boxes
- PDAs

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

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