Усилители считывания тока MAX4373FEUA+T

Токочувствительный усилитель , высокой стороны, 1 Усилитель, 4 мкА, µMAX, 8 вывод(-ов), -40 °C

The MAX4373FEUA+T from Maxim Integrated Products is a low cost, micropower, high side current sense supervisor in 8 pin µMAX package. This device contains a high side current sense amplifier, bandgap reference and comparator with latching output to monitor a supply for an overcurrent condition. It features a voltage output that eliminates the need for gain-setting resistors making it ideal for notebook computers, cell phones and other systems where battery/DC current monitoring is critical. High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The 0 to +28V input common-mode range is independent of the supply voltage which ensures that the current sense feedback remains viable even when connected to a battery pack in deep discharge. The comparator output of the MAX4373 is latched to provide a turn-off flag that doesn't oscillate.

• Supply voltage range is 2.7V to 28V
• Operating temperature range from -40°C to +85°C
• Input offset voltage is 1mV maximum
• Full scale accuracy is 2%
• Internal bandgap reference is ±1.6% accuracy
• Supply current is 50µA
• Common mode rejection is 85dB
• Gain is +50V
• V and -3dB bandwidth is 120KHz
• Cell Phones; General System

• Board-Level Current Monitoring; Notebook Computers; PA Bias Control; Portable Battery-Powered Systems;
• Power-Management Systems; Precision Current Sources; Smart Battery Packs
• Chargers

Области применения

Обработка Сигнала, Переносные Устройства