Power over Ethernet (PoE)

Key Features

• IEEE 802.3af compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Line input voltage range: 40 Vdc to 60 Vdc Output voltage: 12 Vdc ± 5%
• Output current: 1 A
• Peak-to-peak output ripple: 100 mV
• Efficiency DC-DC full-load: > 88%
• Efficiency overall peak: > 85%
• Transient response ΔVout_pk-pk to 50% load step: < 200 mVpp
• ΔV in load line case: < 0.5%

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Key Features

• IEEE 802.3af compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Line input voltage range: 40 Vdc to 60 Vdc output voltage: 5 Vdc ± 5%
• Output current: 2 A
• Peak-to-peak output ripple: 30 mV
• Efficiency DC-DC full-load: > 86%
• Efficiency overall peak: > 84%
• Transient response ΔVout_pk-pk to 50% load step: < 300m Vpp
• ΔV in load line case: < 0.5%

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Key Features

• IEEE 802.3af compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Line input voltage range: 40 Vdc to 60 Vdc, output voltage: 3.3 Vdc ± 5%
• Output current: 3 A
• Peak-to-peak output ripple: 30 mV
• Efficiency DC-DC full-load: > 83%
• Efficiency overall peak: > 80%
• Transient response ΔVout_pk-pk to 50% load step: < 400 mV_pp
• ΔV in load line case: < 0.5%

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Key Features

• IEEE 802.3at compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Line input voltage range: 40 to 60 V_DC
• Output voltage: 5 V_DC ± 5%
• Output current: 4 A
• Peak-to-peak output ripple: < 30 mV
• Efficiency DC-DC full-load: > 92%
• Overall peak efficiency: > 89%
• Transient response ΔV_OUTPK-PK to 50% load step: < 170 mV
• ΔV in load line case: < 0.5%
• RoHs compliant

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Key Features

• IEEE 802.3at compliant PD interface
• Works with power supplied from Ethernet LAN cables or from local auxiliary sources
• Line input voltage range: 40 V_DC to 60 V_DC
• Output voltage: 3.35 V_DC ± 5%
• Output current: 6 A
• Peak-to-peak output ripple: < 25 mV
• Efficiency DC-DC full-load: > 90%
• Overall peak efficiency: > 87%
• Transient response ΔV_OUTPK-PK to 50% load step: < 250 mV
• ΔV in load line case: < 0.5%
• RoHs compliant

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Key Features

• Features of PM8805 PoE-PD interface
  • System in package integrating a double active bridge, hot-swap MOSFET and PoE-PD interface
  • PoE-PD single-signature interface compliant with IEEE 802.3bt
  • Detection and support of high power 4-pair applications
  • 100 V N-Ch MOSFETs with 0.2 Ω total path resistance for each active bridge
  • Identifies which kind of PSE (standard or legacy) it is connected to and provides successful IEEE802.3.af/at/bt classification indication through a combination of the T0, T1 and T2 signals (open drain)
  • VFQFPN43 8x8 mm with 6 exposed pads
• Features of PM8804 PWM controller
  • PWM peak current mode controller
  • Input operating voltage up to 75 V
  • Internal high voltage start up regulator with 20 mA capability
  • Programmable fixed frequency up to 1 MHz
  • Soft start up with settable time
  • Soft turn off (optionally disabled)
  • Dual 1Apk, low side complementary gate drivers
  • GATE2 optionally turned off for reduced consumption
  • 80% maximum duty cycle with internal slope compensation
  • VFQFPN 3.0x3.0x1.0 16L 0.5 mm pitch
• WEEE compliant
• RoHS compliant

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Key Features

• Features of the PM8805 PoE-PD interface:
  • System in package integrating a double active bridge, a hot-swap MOSFET and a PoE-PD
  • Supports legacy high power, 4-pair applications
  • 100 V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge
  • Identifies which kind of PSE (standard or legacy) is connected to, and provides successful IEEE802.3 af /at /bt classification indication as combination of the T0, T1 and T2 signals (open drain)
  • Smart operational mode selection through the STBY, FAUX and RAUX control signals
  • QFN 56 8x8mm package with 43 pins and 6 exposed pads
• Features of the PM8804 PWM controller:
  • PWM peak current mode controller
  • Input operating voltage up to 75 V
  • Internal high voltage start up regulator with 20 mA capability
  • Programmable fixed frequency up to 1 Mhz
  • Soft start up with adjustable time
  • Soft turn off (optionally disabled)
  • Dual 1 A_PK , low side complementary gate drivers
  • GATE2 optionally turned off for reduced consumption
  • 80% maximum duty cycle with internal slope compensation
  • QFN 16 3x3mm package with exposed pad

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Key Features

• Features of the PM8805 PoE-PD interface:
  • System in package integrating a double active bridge, a hot-swap MOSFET and a PoE-PD
  • Supports legacy high power, 4-pair applications
  • 100 V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge
  • Identifies which kind of PSE (standard or legacy) it is connected to and provides successful IEEE 802.3af/at/bt classification indication as a combination of the T0, T1 and T2 signals (open drain)
  • Smart operation mode selection through the STBY, FAUX and RAUX control signals
  • QFN 56 8x8mm package with 43 pins and 6 exposed pads
• Features of the PM8804 PWM controller:
  • PWM peak current mode controller
  • Input operating voltage up to 75 V
  • Internal high voltage start up regulator with 20 mA capability
  • Programmable fixed frequency up to 1 Mhz
  • Soft startup with settable time
  • Soft turn off (optionally disabled)
  • Dual 1 A_PK , low side complementary gate drivers
  • GATE2 can be turned off for reduced consumption
  • 80% maximum duty cycle with internal slope compensation
  • QFN 16 3x3mm package with exposed pad

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Key Features

• System in package including a dual active bridge, a hot swap MOSFET and a PoE-PD interface
• Robust 100V N-ch MOSFETs with 0.2 Ω total path resistance for each active bridge
• Robust 100 V, 0.1 Ω high side N-ch hot swap MOSFET
• PoE-PD single-signature interface compliant with IEEE 802.3bt
• Detection and support of high power, 4-pair applications
• Identifies which kind of PSE (standard or legacy) it is connected with, and provides successful IEEE 802.3af/at/bt classification indication through combination of the T0, T1 and T2 signals (open drain)
• Programmable classification current with 3.3 ms delay
• Advanced energy-saving MPS timings
• Two step hot swap current protection: DC with 1 ms delay and overload with 10 µs delay
• Startup phase (pre-charge of the output capacitor), performed using an internally limited current source
• PGD signal (open drain) to enable an external PWM controller
• Thermal shutdown protection
• RoHS compliant
• WEEE compliant

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Key Features

• PM8805 4-pair IEEE 802.3bt compliant PD interface
• Works with power supplied from Ethernet LAN cables or local auxiliary sources
• Line input voltage range: 40 to 60 V_DC
• Output stage managed by configurable PM8804 controller
• Output voltage: 5 V_DC ±2.5%
• Output current: 8 A
• Peak-to-peak output ripple: <50 mV
• DC-DC full load efficiency: >91%
• Overall full load efficiency: >90%
• Transient response ΔV pk-pk 100% to 50% load step ≈ 700 mV
• Switching frequency ≈ 280 KHz

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