ZXCT1009HIGH-SIDE CURRENT MONITORDescriptionPin Assignments The ZXCT1009 is a high side current sense monitor. Using SOT23 this device eliminates the need to disrupt the ground plane Package Suffix - F when sensing a load current.
It takes a high side voltage developed across a current shunt
resistor and translates it into a proportional output current. A
user defined output resistor scales the output current into a V 3 SENSE-
ground-referenced voltage. 1 I
OUT The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of applications. A minimum V 2
VSENSE+ operating current of just 4µA, combined with a SOT23
package make it a unique solution for portable battery (Top VTiop V ewe ) equipment. The SM8 device offers an alternative package
option. SM8Package Suffix – T8Features • Low cost, accurate high-side current sensing
• Output voltage scaling VSENSE- 1
• SENSE- 8 N/C N/ Up to 2.5V sense voltage
• 2.5V to 20V supply range N/C 2 7 N/C •
4μA quiescent current V 3 6 N/C SENSE+ SE • 1% typical accuracy