TPS92510 datasheet(8/25 Pages) TI1

Part #	TPS92510

Description	1.5-A Constant-Current Buck Converter for High-Brightness LEDs with Integrated LED Thermal Foldback

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−1.10

−1.08

−1.06

−1.04

−1.02

−1.00

−0.98

−0.96

−0.94

−0.92

−0.90

−40 −25 −10

5

20

35

50

65

80

95

110 125

Junction Temperature (°C)

VIN = 12 V

VEN_THRESHOLD –50 mV

G000

−4.20

−4.15

−4.10

−4.05

−4.00

−3.95

−3.90

−3.85

−3.80

−40 −25 −10

5

20

35

50

65

80

95

110 125

Junction Temperature (°C)

VIN = 12 V

VEN_THRESHOLD +50 mV

G000

0

10

60

Input Voltage (V)

20

30

40

50

0

0 .5

1 .5

2 .0

1 .0

TJ =25°C

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

−40 −25 −10

5

20

35

50

65

80

95

110 125

Junction Temperature (°C)

VIN = 12 V

G000

200

250

300

350

400

450

500

−40 −25 −10

5

20

35

50

65

80

95

110 125

Junction Temperature (°C)

VIN = 12 V

G000

1.10

1.15

1.20

1.25

1.30

1.35

1.40

−40 −25 −10

5

20

35

50

65

80

95

110 125

Junction Temperature (°C)

VIN = 12 V

G000

TPS92510

SLUSAE4A – JANUARY 2012 – REVISED JUNE 2012

www.ti.com

TYPICAL CHARACTERISTICS (continued)

Figure 7. Error Amplifier Transconductance vs. Junction

Figure 8. Enable Voltage vs. Junction Temperature

Temperature

Figure 9. Shutdown Quiescent Current vs. Junction

Figure 10. Shutdown Quiescent Current vs. Input Voltage

Temperature

Figure 11. Enable Current vs. Junction Temperature

Figure 12. Enable Current vs. Junction Temperature

8

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