Datasheet

TPS2480
TPS2481
SLUS939B –APRIL 2010–REVISED DECEMBER 2010 www.ti.com
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 q
JA
HIGH K, °C/W q
JA
(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 9 80
V
PROG Input voltage range 0.4 4
V
REF
Sourcing current 0 1 mA
V
S
Input voltage range 3 5.5
V
V
INP
, V
INM
Input voltage range
(1)
0 24
T
stg
Operating free air temperature -40 85
°C
T
J
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.
2 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2480 TPS2481