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The ZXCT1032 is a high-side current monitor
that drives a PMOS or PNP transistor to
provide in-rush current limit and over-current
protection. The ZXCT1032 includes a high
accuracy high-side current monitor, a start-up
timer and a re-try inhibit timer.
Accurate high-side current sensing
User defined and dynamically adjustabletrip current
Load switch control
Fault flag logic output
User defined ramp and inhibit timers
Temperature range -40 to 85°C
Short circuit protected supply feed
Power over twisted pair
Compliance (Only Automotive supports PPAP)
Minimum S+ Common-Mode Sense Voltage (V)
Maximum S+ Common-Mode Sense Voltage (V)
Minimum VCC/VB Supply Voltage (V)
Maximum VCC/VB Supply Voltage (V)
Sense Voltage VMAX (mV)
Maximum Output Voltage (V)
Voltage output Gain VOUT/VSENSE (V/V)
Current output Gain Iout/VSENSE (mA/V)
% Accuracy @ VSENSE =100mV Ta (%)
Quiescent Current (µA)
IS- S- Input current (nA)
Bandwidth typ (MHz)
Operating Ambient Temperature Range (°C)
-40 to 85
Series Transistor Drive + Programmable Threshold + Output Flag
Diodes Incorporated's current monitors are high-performance, high-side/power rail current measurement ICs. They greatly simplify the measurement of load currents without disturbing the ground plane/reference point.
The current monitor families contain variants with quiescent currents as low as 3µA, and others with operating voltages up to 60V, proving solutions for overcurrent detection in consumer, industrial, and automotive applications. The portfolio includes current output variants which via an external resistor to ground to provide adjustable gain, and voltage output variants with fixed gains.
Automotive-compliant variants are available which are qualified to AEC-Q100 Grade 1 in IATF 16949 facilities supporting PPAP documentation.