TPS2373-4RGWR datasheet(8/42 Pages) TI1

Part #	TPS2373-4RGWR

Description	High-Power PoE PD Interface with Advanced Startup

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Manufacturer	TI1 [Texas Instruments]

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8

TPS2373

SLUSCD1 – APRIL 2017

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Electrical Characteristics (continued)

40 V

≤ VVDD ≤ 57 V, RDEN = 24.9 kΩ; PG, CLSA, CLSB, MPS_DUTY, AMPS_CTL, UVLO_SEL, VC_IN, TPH, TPL and BT

open; VAPD = VRTN; CVC_OUT = 1 µF; RREF = 49.9 kΩ; –40°C ≤ TJ ≤ 125°C. Positive currents are into pins. Typical values are at

25°C. All voltages are with respect to VVSS unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(1)

Parameters provided for reference only, and do not constitute part of TI published specifications for purposes of TI product warranty.

MPS pulsed mode duty

cycle for Type 3-4 PSE

MPS pulsed current duty cycle, RMPS_DUTY >

230 kΩ

5.2%

5.43%

5.6%

MPS pulsed current ON time, RMPS_DUTY >

230 kΩ

14.3

14.9

15.5

ms

MPS pulsed current duty cycle, RMPS_DUTY <

8 kΩ

12.3%

12.5%

12.7%

MPS pulsed current ON time, RMPS_DUTY < 8

kΩ

36

37.5

39

ms

MPS pulsed current duty cycle,

43 kΩ < RMPS_DUTY < 77 kΩ

7.9%

8.1%

8.3%

MPS pulsed current ON time,

43 kΩ < RMPS_DUTY < 77 kΩ

22.2

23.1

24

ms

MPS pulsed current OFF time, RMPS_DUTY

from 0 Ω to open circuit

250

265

280

ms

MPS_DUTY pullup current

14

17

20

µA

THERMAL SHUTDOWN

Shutdown

TJ↑

140

150

°C

Hysteresis (1)

20

°C

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