نظرة عامة على المنتج
The TPS2211AIDBR from TI is a power distribution switch for PCMCIA and CardBus slots, providing switchable 3.3V and 5V power rails with 1A current limiting per output. It includes fault reporting and auto-discharge for safe card hot-insertion.
المواصفات الرئيسية
| الوظيفة | PCMCIA / CardBus power switch |
| Outputs | 3.3V and 5V switchable rails |
| الحد الحالي | 1A per output |
| Fault Flag | Open-drain fault reporting |
| جهد الإمداد | 2.7V to 5.5V |
| الحزمة | SOIC-16 (3.9×9.9mm) |
مبدأ العمل
Internal MOSFET switches connect 3.3V and 5V inputs to the card socket outputs under control of the PCMCIA controller. Current sensing with foldback limiting protects against short-circuit faults. An open-drain fault flag reports overcurrent to the host. Auto-discharge resistors bleed card capacitance on power-down for safe removal.
التطبيقات
- PCMCIA / CardBus slot
- Hot-plug power switching
- Card reader power control
- General purpose load switch