STEVAL-POE003V1

STEVAL-POE003V1 is a 5V/20A, active clamp forward converter, PoE - IEEE 802.3bt compliant reference design. This reference design represents a PoE Class 8 converter designed for high efficiency conversion over a wide load range. It is based on PM8805 PoE-PD interface compliant with IEEE802.3bt standard, and a DC-DC forward active clamp converter driven by the PM8804 PWM controller. The PM8805 system on package device embeds two active bridges and an IEEE802.3bt compliant Powered Device interface. It can be used in all medium-to-high power 2P and 4P high efficiency PoE and PoE+ applications such as point of sales and retail logistics devices. The PM8804 PWM controller represents an integrated solution for a smart and efficient 48V converter, including a programmable oscillator for the switching frequency, adjustable slope compensation, dual complementary low-side drivers with programmable dead time, programmable soft start, soft turn off and a programmable current sense blanking time.

• PoE-PD single-signature interface compliant with IEEE 802.3bt
• Detection and support of high power 4-pair applications
• 100V N-channel MOSFETs
• PM8804 PWM peak current mode controller
• Input operating voltage up to 75V
• Programmable fixed frequency up to 1MHz
• Soft startup with settable time
• Dual 1A low side complementary gate drivers
• 80% maximum duty cycle with internal slope compensations

Notes

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.