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TMI7303B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TMI7303B product

TMI7303B

MOSFETs - Single

PoE PD controllerIEEE 802.3afIEEE 802.3atType 2 PSEHot-swap MOSFETDFN3x3-1025 W PoE

TMI7303B is a 25 W IEEE 802.3af/at PoE powered-device controller with integrated hot-swap switching, classification, inrush limiting, and auxiliary-adapter detection.

Best for

  • IEEE 802.3af/at PoE powered devices
  • Security cameras and VoIP endpoints
  • PoE designs requiring auxiliary wall-adapter support

Avoid if

  • Applications requiring PoE power beyond the stated 25 W capability
  • Designs without adequate thermal copper under the exposed pad
  • Applications requiring verified lifecycle or qualification data not supplied in the datasheet

Check before use

  • RCLASS value for the target IEEE class
  • DC/DC converter startup compatibility with PG timing
  • Input capacitor charging and 180 mA inrush duration
  • RTN-to-VSS voltage during overload fold-back
  • AUX divider and Schottky-diode implementation when using an adapter

Key specifications

PoE compliance
IEEE 802.3af/at
PoE power application
25 W
Integrated pass switch
100 V, 0.48 Ohm typical
Inrush limit
180 mA typical
Operating current limit
720 mA to 920 mA
UVLO turn-on
36 V to 39.6 V
Package
DFN3x3-10 with exposed pad

Compliance & Environment

RoHS
RoHS compliant
REACH
-
MSL
MSL 3
ECCN
-
HTSUS
-

Application

PoE powered network equipmentVoIP telephonesSecurity camera systemsRemote power endpoints

Datasheet

2eeff5a41cf2df4d838da6ea80b181d0_TMI7303B.pdf

800 KB

Datasheet AI

CAD Models

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

TMI7303B is an IEEE 802.3af/at powered-device controller for PoE equipment. It integrates PD detection, resistor-programmed classification, a 100 V isolation MOSFET, inrush control, current limiting, power-good signaling, and Type 2 PSE indication.