TPS40428_15 datasheet(11/92 Pages) TI

Part #	TPS40428

Description	TPS40428 Dual Output, 2-Phase, Stackable PMBus??Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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RT Timing Resistance (k

)

Temp=-40c

Temp=25c

Temp=125c

C004

TJ = ±40°C

TJ = 25°C

TJ = 125°C

VVDD = 12 V

400

450

500

550

600

650

700

750

800

±40 ±25 ±10

5

20

35

50

65

80

95

110 125

Junction Temperature (

C)

OV

UV

C002

3.0

3.5

4.0

4.5

5.0

5.5

6.0

±40 ±25 ±10

5

20

35

50

65

80

95

110 125

Junction Temperature (

C)

Vdd=4.5V

Vdd=12V

Vdd=20V

C006

VVDD = 4.5 V

VVDD = 12 V

VVDD = 20 V

TPS40428

www.ti.com

SLUSBV0A – MAY 2014 – REVISED JULY 2014

Typical Characteristics (continued)

VOUT = 600 mV

Default threshold settings

Figure 8. BP5 Voltage vs Junction Temperature

Figure 7. Overvoltage and Undervoltage Thresholds vs

Junction Temperature

Figure 9. Timing Resistance vs Switching Frequency

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