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ZXCT1012

ZXCT1010 with Low Profile Package

Datasheet

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Description

The ZXCT1012 is a high side current sense monitor. Using this type of device eliminates the need to disrupt the ground plane when sensing a load current. The ZXCT1012 takes the voltage developed across a small value resistor and translates it into a proportional output current. A user defined output resistor scales the output current into a ground referenced voltage. The ZXCT1012 has the accuracy specification of the ZXCT1010 but in TSOT25. A minimum operating current of just 3.5µA, combined with its TSOT25 package make it suitable for portable battery equipment where size and current consumption are critical. The wide input voltage range down to as low as 2.5V make it suitable for a wide range of applications requiring direct operation from a battery.

Feature(s)

2.5V to 20V supply range

3.5μA quiescent current

Current output - user set gain

Thin package - TSOT25

Temperature range -40 to 85°C

Application(s)

Battery fuel gauge

Battery chargers

Overcurrent monitor

Power management

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP)	Standard
AEC Qualified	No
Type	Current Output
Minimum S+ Common-Mode Sense Voltage (V)	2.5
Maximum S+ Common-Mode Sense Voltage (V)	20
Minimum VCC/VB Supply Voltage (V)	-
Maximum VCC/VB Supply Voltage (V)	-
Sense Voltage VMAX (mV)	2500
Maximum Output Voltage (V)	Vs- -1
Voltage output Gain VOUT/VSENSE (V/V)	-
Current output Gain Iout/VSENSE (mA/V)	10
% Accuracy @ VSENSE =100mV Ta (%)	2.5
Quiescent Current (µA)	3.5
IS- S- Input current (nA)	100
Bandwidth typ (MHz)	2
Operating Ambient Temperature Range (°C)	-40 to 85
Special Features	Ground Pin - (Eliminates Quiescent Current Error)

Technical Documents

Application Notes

an45.pdf (129 KB)

ICP Reports

DFNICP.pdf (1.3 MB)

Reliability Reports

RTSIC_Current_Monitor.pdf (31 KB)

Calculators

Zetex-CM-Calculator-V1.01.xls (1.5 MB)

Evaluation Boards and User Guides

ZXCT1012EV1-User-Guide.pdf (152 KB)

Recommended Soldering Techniques

TN1.pdf

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.

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