AN2795 Datasheet, PDF (1/28 Pages) STMicroelectronics – VNI4140K load test report

AN2795
Application note
VNI4140K load test report
Introduction
The tests described in this application note were carried out to check the VNI4140K
parameters and driving capabilities of different types of problematic loads such as bulb and
inductor.
The VNI4140K device is a quad high-side smart power state relay intended for driving four
independent resistive or inductive loads with built-in current limitation and thermal
shutdown.
Figure 1 shows the test configuration. The STEVAL-IFP006V1, based on the VNI4140K,
was chosen for the measurements. The parameters of the test were set as follows:
Power supply: 1. 10.5 V; 2. 24 V; 3. 36 V
Generator:
Load:
freq. = 1 Hz, duty cycle = 50%
1. bulb 24 V/15 W; 2. inductor 130 mH/48 Ω; 3. short-circuit.
Figure 1.Test block diagram
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March 2013
DocID14836 Rev 2
1/28
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