The Power Over Ethernet (PoE) Powered Device (PD) Interface Controller NCP1095 contains all features needed to implement an IEEE.3bt, IEEE 802.3af, and/or IEEE 802.3at application. This includes detection, classification, and current limiting. The NCP1095 supports high power applications up to 90W through an external pass transistor. A power good and auxiliary power supply detection pin guarantee a proper enabling or disabling of the DC/DC converter to comply with type I, II, III and IV operation.
Key features
- IEEE 802.3bt compliant, supporting high power applications up to 90W
- External hot swap transistor & current sense resistor
- Auxiliary power supply detection feature and power good pin
- Inrush Current Limiting, Current and Temperature Protection Features
Additional features
- 802.3bt UHP 90W compliant PoE PD device
- Classification
- 5 finger (type 1, 2, 3 and 4 PSE)
- Auto-classification
- External hot swap transistor & current sense resistor
- Fixed inrush current
- Standard UVLO
- Over current protection / Over temperature protection
- Interface to microcontroller
- Classification result
- LCF for Short maintain power signature
- Interface to external DC/DC, Power Good
- Short MPS (Maintain Power Signature)
- Auxiliary power supply detection, Disable pass switch & back-feed protection
- TSSOP-16 package
Applications
- Video conferencing
- Wireless access points
- IP camera
- Mini base stations
- Point of sales/retail
- Industrial (motor control units)
- LED lighting
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