TPS2376-H
www.ti.com SLVS646A – SEPTEMBER 2006 – REVISED SEPTEMBER 2006 IEEE 802.3af PoE HIGH POWER PD CONTROLLER
FEATURES PRODUCT SELECTOR Adjustable Turn-on Thresholds
Permits high-power 26 W designs
Integrated 0.58-Ω, 100-V, Low-Side Switch
15-kV System Level ESD Capable
Industrial Temperature Range: -40В°C to 85В°C
8-Pin PowerPadв„ў SOIC Package APPLICATIONS VoIP Video and Speaker Phones
WiMAX Access Points
Security Cameras
RFID Readers Device UVLO Protection Package (1) Rated
Current TPS2376-H Adjustable Auto-Retry DDA 600 mA TPS2375-1 802.3af Auto-Retry PW 400 mA TPS2377-1 Legacy Auto-Retry D 400 mA TPS2375 802.3af Latch PW, D 400 mA TPS2376 Adjustable Latch PW, D 400 mA TPS2377 Legacy Latch PW, D 400 mA (1) Packages codes as follows: D = S0, DDA = SO PowerPad,
PW = TSSOP DESCRIPTION
The 8-pin integrated circuit contains all of the features needed to develop a high power IEEE 802.3af style
powered device (PD). The TPS2376-H offers a higher current limit and increased thermal dissipation capability
over the TPS237X family of devices. The TPS2376-H implements a fully compliant PoE interface while
permitting non-standard implementations that draw more power. A 26 W PD may be constructed when working
from a 52 V minimum PSE over 100 m of CAT-5 cable. The TPS2376-H features a 100 V rating, 600 mA
capability, adjustable inrush limiting, fault protection with auto-retry, and true open-drain power-good
functionality. 1
2 Data to
Ethernet
PHY T1A VSS PG RTN CBULK UVLO 1.62KW PAD VDD To DC/DC Converter 7 …
