MAX4375HEUB+

The MAX4375HEUB+ is a low cost, micropower, high side current sense supervisor in 10 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 MAX4375 is latched to provide a turn-off flag that doesn’t oscillate. It contains a second comparator for use in window-detection functions.

• 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 +100V/V and -3dB bandwidth is 110KHz

Applications

Signal Processing, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party