TPS2500 datasheet(26/43 Pages) TI2

Teilenummer	TPS2500

Bauteilbeschribung	INTEGRATED USB POWER SWITCH WITH BOOST CONVERTER

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Hersteller	TI2 [Texas Instruments]

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1.114

ILIM

min

32,114

35.62 k

IOS

600 mA

TPS2500, TPS2501

SLVS886C – OCTOBER 2008 – REVISED AUGUST 2010

www.ti.com

It is also important to account for IOS shifts due to variation in VIN and IAUX, so by referencing the curves in the

Programming the Current-Limit Threshold Resistor section (Figure 19, specifically) it can be seen that IOS will

shift down by ~50 mA from the VIN = 3.3 V, IAUX = 0 A reference point at our maximum operating conditions of

VIN = 4.2 V, IAUX = 500 mA. Select RILIM so that the minimum current-limit threshold equals 600 mA to ensure a

minimum IUSB current-limit threshold of 550 mA.

Choose the next-smaller 1% resistor, which is 34.8 k

Ω.

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TPS2500 Datenblatt(PDF) 26 Page - Texas Instruments