TPS745-Q1_V06 datasheet(18/45 Pages) TI

номер детали	TPS745-Q1

подробное описание детали	TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

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VOUT(NOM)

0 V

0 mA

VOUT

VFOLDBACK

ICL

ISC

IRATED

IOUT

Brickwall

Foldback

18

TPS745-Q1

SBVS355A – JUNE 2019 – REVISED OCTOBER 2019

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Figure 53 shows a diagram of the foldback current limit.

Figure 53. Foldback Current Limit

7.3.5 Thermal Shutdown

Thermal shutdown protection disables the output when the junction temperature rises to approximately 170°C.

Disabling the device eliminates the power dissipated by the device, allowing the device to cool. When the

junction temperature cools to approximately 155°C, the output circuitry is again enabled. Depending on power

dissipation, thermal resistance, and ambient temperature, the thermal protection circuit may cycle on and off.

This cycling limits regulator dissipation, protecting the regulator from damage as a result of overheating.

Activating the thermal shutdown feature usually indicates excessive power dissipation as a result of the product

of the (VIN – VOUT) voltage and the load current. For reliable operation, limit junction temperature to 150°C

maximum. To estimate the margin of safety in a complete design, increase the ambient temperature until the

thermal protection is triggered; use worst-case loads and signal conditions.

The TPS745-Q1 internal protection circuitry protects against overload conditions but is not intended to be

activated in normal operation. Continuously running the TPS745-Q1 into thermal shutdown degrades device

reliability.

Аналогичный номер детали - TPS745-Q1_V06

производитель	номер детали	датащи	подробное описание детали
Texas Instruments	TPS745-Q1	2Mb / 30P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS745-Q1	3Mb / 41P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

производитель	номер детали	датащи	подробное описание детали
Texas Instruments	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	3Mb / 41P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 45P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	4Mb / 44P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS745-Q1	2Mb / 29P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS745-Q1	2Mb / 30P	[Old version datasheet] TPS745-Q1 500-mA LDO With Power-Good in a Small Wettable Flank WSON Package
	TPS746-Q1	3Mb / 41P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS746-Q1	3Mb / 45P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages
	TPS746-Q1	4Mb / 44P	[Old version datasheet] TPS746-Q1 1-A LDO With Power-Good in Small Wettable Flank WSON Packages