Supertex Intros HV110 Powered Device Controller
Supertex Inc. (Sunnyvale, CA) introduced its new HV110, a powered device (PD) controller for Power-over-Ethernet applications. In addition to the standard inrush limiting and voltage supervisory/enable functions common to PD controllers, the HV110 offers circuit-breaker functionality, protection during second inrush, voltage foldback-on-overload, minimum current timeout, thermal protection, open-drain PWRGD, and auto-restart.
The HV110 is a single-chip PD controller for interfacing power sourcing equipment and PDs through standard Ethernet connections. The IC is fully compliant with IEEE 802.3af standards, including thresholds and timers and is suitable for applications in IP phones, wireless access points, PDAs, switches and security devices. The HV110 avoids reset and lockup issues at higher temperatures associated with competitive devices in SO-8 packages by utilizing a thermally rugged, DPAK-5 package and leaving the rarely used functions such as classification to low-cost external circuitry.
The HV110K4 is available in a DPAK-5 package that provides improved thermal resistance when compared to SO-8-based solutions. Samples are available from stock. Lead-time for production quantities is six weeks ARO. Pricing is $1.19 in 1,000-unit quantities.
