ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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TPS2378DDAR Ethernet Switch IC POE / LAN PoE High-Pwr PD Interface
1 Features
Adapter Priority Input
DC/DC Converter Enable
Robust 100 V, 0.5-Ω Hotswap MOSFET
Operating Current up to 850 mA
1-A (Typical) Operating Current Limit
15 kV and 8 kV System-level ESD Capability
PowerPADTM HSOP Package
2 Applications
IEEE 802.3at-compliant Devices
Video and VoIP Telephones
Multiband Access Points
Security Cameras
Pico-base Stations
Forced, Four-Pair, High Power Devices
3 Description
This 8-pin integrated circuit contains all of the features needed to implement an IEEE802.3at type-2 powered device (PD). The low 0.5-Ω internal switch resistance, combined with the enhanced thermal dissipation of the PowerPADTM package, enables this controller to continuously handle up to 0.85 A. The TPS2378 features an auxiliary power detect (APD) input, providing priority for an external power adapter. It also features a 100-V pass transistor, 140-mA inrush current limiting, type-2 indication, auto-retry fault protection, and an open-drain power-good output.
Device Information
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
| TPS2378 | HSOP (8) | 4.89 mm × 3.90 mm |
