TPS2220B是TI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,本页介绍了TPS2220B的产品说明、应用、特性等,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 - TI公司(Texas Instruments,德州仪器)
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.
- 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.