The MAX14523AATA+T programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These current-limit switches feature a low 70mΩ on-resistance and operate from a +1.7V to +5.5V input voltage range. The current limit is adjustable from 250mA to 1.5A, making these devices ideal for SDIO (secure digital input/output) and other load-switching applications. Each device in the family handles an overcurrent event differently depending on the option selected. The MAX14523AATA+T go into an autoretry mode, the MAX14523B latches off the switch, and the MAX14523C features a continuous current-limit mode. Additional safety features include thermal shutdown to prevent overheating and reverse-current blocking to prevent current from being driven back into the source. The MAX14523AATA+T are available in a tiny 8-pin, 3mm x 3mm, TDFN package and operate over the -40°C to +125°C automotive temperature range.
Features
♦ Accurate (±10%) Overload Current Limit
♦ Adjustable Current-Limit Threshold
♦ Low-Dropout Voltage (70mV at 1A Load Current)
♦ Short-Circuit Protection
♦ Thermal-Shutdown Protection
♦ Reverse-Current Protection
♦ 170µA (typ) Supply Current
♦ Shutdown Reverse Current, 0.6µA (max)
♦ +1.7V to +5.5V Supply Voltage Range
♦ Tiny 8-Pin, 3mm x 3mm, TDFN Package
Applications
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Cell Phones
MP3 Players
UTCA/ATCA Platforms
Feature
- Accurate (±10%) Overload Current Limit
- Adjustable Current-Limit Threshold
- Low-Dropout Voltage (70mV at 1A Load Current)
- Short-Circuit Protection
- Thermal-Shutdown Protection
- Reverse-Current Protection
- 170μA (typ) Supply Current
- Shutdown Reverse Current, 0.6μA (max)
- +1.7V to +5.5V Supply Voltage Range
- Tiny 8-Pin, 3mm x 3mm, TDFN Package
Applications
- Cell Phones
- GPS
- MP3 Players
- Notebook VGA Ports
- SDIO Ports
- USB Ports
- UTCA/ATCA Platforms
