TPS54521 datasheet(9/33 Pages) TI

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T – Junction Temperature – C

1.00

1.05

1.10

1.15

1.20

–50

–25

100

125

VIN = 12 V

EN = 1.1 V

T – Junction Temperature – C

1.20

1.21

1.22

1.23

1.24

–50

–25

100

125

VIN = 12 V

V – Input Voltage – V

400

500

600

700

800

T = 125 C

T = 25 C

T = 40 C

–

T – Junction Temperature – C

2.10

2.20

2.30

2.40

2.50

–50

–25

100

125

T – Junction Temperature – C

–50

–25

100

125

T – Junction Temperature – C

100

110

120

–50

–25

100

125

VSENSE Rising

VSENSE Falling

VSENSE Rising

TPS54521

www.ti.com

SLVS981 – JUNE 2010

TYPICAL CHARACTERISTICS (continued)

PIN pull-up CURRENT vs TEMPERATURE

PIN UVLO THRESHOLD vs TEMPERATURE

Figure 7.

Figure 8.

NON-SWITCHING OPERATING QUIESCENT CURRENT

(VIN) vs

SLOW START CHARGE CURRENT vs

INPUT VOLTAGE

TEMPERATURE

Figure 9.

Figure 10.

(SS/TR - VSENSE) OFFSET vs TEMPERATURE

PWRGD THRESHOLD vs TEMPERATURE

Figure 11.

Figure 12.

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