STEVAL-POEL45W1: 45W PoE LED Driver with BLE Control

The STEVAL–POEL45W1 is a PoE-enabled constant current LED driver with a PM8805 Power over Ethernet interface, LED6000 LED driver and Bluetooth module SPBTLE-1S for smart dimming control.

The PM8805 is a highly integrated device, embedding a double active bridge, a hot-swap MOSFET and an IEEE802.3bt-compliant Powered Device (PD) PoE interface.

The LED6000 is a step-down monolithic switching regulator designed to source up to 3 ADC current for high power LED driving. The 250 mV typical RSENSE voltage drop enhances the efficiency. Digital dimming is implemented by driving the dedicated DIM pin.

The SPBTLE-1S is a Bluetooth® low Energy System-on-Chip application processor certified module, compliant with BT specifications v4.2 and BQE qualified.

The STEVAL–POEL45W1 evaluation board is designed to provide a power output of 48 W and can dim LEDs down to 1% of the maximum brightness without any flicker. Remote on/off and dimming control can be managed through the PoE Lighting android application available free of charge on the Google Play store.

Key Features

• PoE-PD IEEE 802.3af/at/bt compliant

• Constant current output, working in buck topology

• Output Current – 1.4 A with < 0.05% current regulation

• LED driver input voltage range 37 – 57 VDC

• Peak Efficiency at maximum load > 95%

• Standby power consumption of LED driver < 100 mW

• Wireless On/Off and dimming controlPoE Lighting android application available on Google Play store

• Digital dimming with 1% resolution