[ECU Testing] High-accuracy power consumption analysis of on-board MCU and PCBA

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Accurate capture of a μA standby current

The number of ECUs installed in automobiles continues to increase, and the battery power consumption during standby is no longer negligible.

CX3300A enables measurement of current waveforms even at the level of hundreds of pA with Keysight’s unique, low-noise current sensor technology. A minute standby current that was not visible with conventional measuring instruments can now be measured with high accuracy, enabling the analysis of power consumption during standby mode.

Capture the current change profile from standby to operation mode

Understanding and improving the current consumption profile when the device starts operation is also important in controlling battery consumption.

The CX3300A’s dedicated current sensors enable up to 5-digit dynamic range measurements simultaneously. This makes it possible to observe the current transition from the μA level during sleep to several hundred mA when in operation mode with extremely low noise.

Two choices depending on the required current level

The CX3300A device current analyzer is used to capture a minute standby current or current fluctuations of the device on the ECU board. The lower-priced DC power supply/analyzer is used to observe the current consumption of a device with a relatively larger standby current or the entire ECU board (module).

Either one can be selected according to the DUT and required range and accuracy of

Measurement.

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[ECU Testing] High-accuracy power consumption analysis of on-board MCU and PCBA

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