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ZXCT1050

Wide Common Mode Current Monitor

Datasheet

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Description

The ZXCT1050 is a wide input range current monitor, which operates over a range of input voltages from ground up to V_CC-2V. As a result the ZXCT1050 can be used on the high or low side of the load. The ZXCT1050 provides variable gain by using two external resistors. The first of which sets the trans conductance and the second setting the overall gain. The very low offset voltage enables a typical accuracy of 1% for sense voltages of only 30mV, giving better tolerances for small sense resistors necessary at higher currents.

Feature(s)

Accurate down to end current sensing

Output voltage scaling x10

0 to V_CC-2V sense input range

2.7 to 20V supply range

50μA quiescent current

SOT25 package

Application(s)

Power supply

DC motor and solenoid control

Battery management

Over current monitor

Power management

Short circuit detection

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP)	Standard
AEC Qualified	No
Type	Current Output
Minimum S+ Common-Mode Sense Voltage (V)	0
Maximum S+ Common-Mode Sense Voltage (V)	VCC-2
Minimum VCC/VB Supply Voltage (V)	2.7
Maximum VCC/VB Supply Voltage (V)	20
Sense Voltage VMAX (mV)	500
Maximum Output Voltage (V)	VCC-2
Voltage output Gain VOUT/VSENSE (V/V)	-
Current output Gain Iout/VSENSE (mA/V)	Ext resistor
% Accuracy @ VSENSE =100mV Ta (%)	3
Quiescent Current (µA)	50
IS- S- Input current (nA)	15
Bandwidth typ (MHz)	0.8
Operating Ambient Temperature Range (°C)	-40 to 125
Special Features	Separate VCC Pin + Current Gain (x20) + Short Circuit Protection