STBP120DVDK6F datasheet(11/36 Pages) STMICROELECTRONICS

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STBP120DVDK6F Datenblatt(PDF) 11 Page - STMicroelectronics

Teilenummer	STBP120DVDK6F

Bauteilbeschribung	Overvoltage protection device with thermal shutdown

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

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11 / 36 page

STBP120

Operation

Doc ID 15492 Rev 4

11/36

3.4

Overvoltage lockout (OVLO)

If the input voltage VIN rises above the threshold level VOVLO, the MOSFET switch is

immediately turned off (see Figure 7). At the same time, the fault indication output FLT is

activated (i.e. driven low). This device is equipped with hysteresis, VHYS(OVLO), to improve

noise immunity under transient conditions.

For available OVLO thresholds and hystereses, please see the Table 5.

3.5

Thermal shutdown

If the STBP120 internal junction temperature exceeds the TOFF threshold, internal MOSFET

switch is turned off and the fault indication output FLT is driven low.

To improve thermal stability, this circuit has a 20 °C hysteresis, THYS(OFF).

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