Application information

GS-R12FP

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4.6

Thermal shutdown

The shutdown block generates a signal that turns OFF the power stage if the temperature of

the internal chip goes higher than a fixed internal threshold (150

°C min).

The sensing element of the chip is very close to the PDMOS area, so ensuring an accurate

and fast temperature detection.

An hysteresis of approximately 20

°C avoids that the devices turns ON and OFF

continuously.

4.7

Output voltage programming (GS-R12FP0001.9 only)

The GS-R12FP0001.9 output voltage is 5.54 V

±4 %, to reduce this value connect a resistor

The resistor must be located very close to the proper pins, to minimize the injected noise

(see Figure 4).

The resistor value is calculated using the following formula:

4.8

Loop compensation (GS-R12FP0001.9 only)

If required by particular load conditions, it is possible to change the feedback loop

act as speed up (see Figure 5).