TPS2480PW datasheet(2/60 Pages) TI2

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TPS2480

TPS2481

SLUS939B – APRIL 2010 – REVISED DECEMBER 2010

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DESCRIPTION (CONT.)

The TPS2480 and TPS2481 monitors shunts on buses that can vary from 9 V to 26 V and with a few external

components it is possible to monitor buses as high as 80 V.

The monitoring circuitry uses a single 3-V to 5.5-V supply, drawing a maximum of 1 mA of supply current.

DEVICE INFORMATION (1)

JUNCTION

DEVICE

PACKAGE

FUNCTION

MARKING

TEMPERATURE

TPS2480

-40°C to 125°C

PW20

Latch Off

TPS2480

TPS2481

-40°C to 125°C

PW20

Auto Retry

TPS2481

(1)

For package and ordering information see the Package Option Addendum at the end of this document or see the TI Web site at

www.ti.com.

DISSIPATION RATINGS

(1) (2) (3)

PACKAGE

qJA HIGH K, °C/W

qJA (Air Flow) HIGH-k

(4), °C/W

TPS2480

88.3

74.5

TPS2481

88.3

74.5

(1)

Tested per JEDEC JESD51, natural convection. The definitions of high-k and low-k are per JESD 51-7and JESD 51-3.

(2)

Low-k (2 signal - no plane, 3 in. by 3 in. board, 0.062 in. thick, 1 oz. copper) test board with the pad soldered, and an additional 0.12

in.2 of top-side copper added to the pad.

(3)

High-k is a (2 signal – 2 plane) test board with the pad soldered.

(4)

The best case thermal resistance is obtained using the recommendations per SLMA002A (2 signal - 2 plane with the pad connected to

the plane).

RECOMMENDED OPERATING CONDITIONS

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

VCC

Input voltage range

PROG

Input voltage range

0.4

VREF

Sourcing current

Input voltage range

5.5

VINP, VINM

Input voltage range (1)

Tstg

Operating free air temperature

-40

°C

Operating junction temperature

-40

125

(1)

Hotswap circuits may experience voltage surges during events such as hotplug and output shorts. The maximum Recommended

Operating Voltage is derated below the Absolute Maximum to allow for tolerance of protection devices (clamps). If the application does

not have input surges, the TPS2480 may be used up to its Absolute Maximum Rating with no degradation of performance or reliability.

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