ZXCT1023

Voltage Ouput

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Description

The ZXCT1023 is a precision high-side current sense monitor. Using this type of device eliminates the need to disrupt the ground plane when sensing a load current. The ZXCT1023 has a fixed internal gain of 50 and the only external component required is the external current sense resistor; this combined with its 1.2mm x 1.8mm TDFN package more than quarters the solution size of the ZXCT1010. The wide input voltage range of 20V down to as low as 2.5V makes it suitable for a range of applications. The combination of operation down to 2.5V and just 3.5μA quiescent current makes it ideal for single cell Li-Ion/polymer battery charge/discharge measurement applications.

Feature(s)

Accurate high-side current sensing

Fixed gain of 50 output scaling

2.5V – 20V operating range

3.5μA quiescent current

TDFN1218 package

Application(s)

Battery capacity measurement

Battery chargers

Over-current monitor

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP)	Standard
AEC Qualified	No
Minimum V_CC/V_B Supply Voltage	2.5 V
Maximum V_CC/V_B Supply Voltage	20 V
Minimum S+ Common-Mode Sense Voltage	2.5 V
Maximum S+ Common-Mode Sense Voltage	20 V
Maximum Output Voltage (V)	Vs- -1 V
Maximum Sense Voltage	0.38 V
% Accuracy @ V_SENSE =100mV Ta	- %
Quiescent Current (µA)	3.5 µA
Gain Output/V_SENSE	50
Bandwidth typ (MHz)	1 MHz
Operating Ambient Temperature Range (°C)	-40 to 85 °C
Special Features	Small footprint G=50 Current Monitor