GS-R24FP0181.8 데이터 시트보기 (PDF) - STMicroelectronics
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GS-R24FP0181.8 Datasheet PDF : 15 Pages
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GS-R24FP
Application information
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-R24FP0001.8 only)
The GS-R24FP0001.8 output voltage is 5.54 V ± 4 %, to reduce this value connect a resistor
between pin 10 (FB) and pin 9 (Vout).
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:
for GS-R24FP0001.8 Rv = [(Vout - 1.235) * 11.3] / 5.54 - Vout) --[kΩ]
Vout can be adjusted between 1.235 V (Rv = 0 Ω) and 5.54V (Rv = open)
4.8
Loop compensation (GS-R24FP0001.8 only)
If required by particular load conditions, it is possible to change the feedback loop
compensation, adding an external capacitor between pin 10 (FB) and pin 9 (Vout), which will
act as speed up (see Figure 5).
9/15
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