Getting started with smart home lighting based on HVLED815PF and SPBTLE-RF

Transcription

1 UM266 User manual Getting started with smart home lighting based on HVLED85PF and SPBTLE-RF Introduction The STEVAL-ILL083V evaluation board consists of a LED driver board based on HVLED85PF with the connectivity module SPBTLE-RF and the STM32L0 microcontroller which manages wireless communication and LED brightness control. The microcontroller and the connectivity module are supplied by the LED driver through the primary side auxiliary winding. The embedded SPBTLE-RF Bluetooth v4. module lets you control the STEVAL-ILL083V board through the Smart Home Lighting Android application and can help reduce development and certification time. The board can also be rendered visible to cloud applications with the addition of a wireless bridge. Figure : STEVAL-ILL083V evaluation board (top view) Figure 2: STEVAL-ILL083V evaluation board (bottom view) September 207 DocID Rev 3 /20

2 Contents UM266 Contents Overview Smart home lighting architecture Hardware description Getting started Powering the board Smart home lighting board used with SPBTLE-RF and Android app 8 3 Efficiency testing and measurements Efficiency, power factor, THD, LED current and current regulation IEC class C harmonic measurement LED dimming versus output power and LED current Standby power consumption Schematic diagrams Bill of materials Revision history /20 DocID Rev 3

3 UM266 List of tables List of tables Table : Test conditions... 0 Table 2: Test results... 0 Table 3: STEVAL-ILL083V bill of materials... 7 Table 4: Document revision history... 9 DocID Rev 3 3/20

4 List of figures List of figures UM266 Figure : STEVAL-ILL083V evaluation board (top view)... Figure 2: STEVAL-ILL083V evaluation board (bottom view)... Figure 3: Smart home lighting architecture... 5 Figure 4: STEVAL-ILL083V key components (top view)... 6 Figure 5: STEVAL-ILL083V key components (bottom view)... 7 Figure 6: LED load connection... 8 Figure 7: Android application for smart home lighting... 9 Figure 8: STEVAL-ILL083V test setup... 0 Figure 9: Input voltage versus LED current... Figure 0: Input voltage versus PF... Figure : THD versus line variation... 2 Figure 2: Current regulation... 2 Figure 3: Efficiency curve... 3 Figure 4: STEVAL-ILL083V: full load condition... 3 Figure 5: STEVAL-ILL083V: LED dimming linearity... 4 Figure 6: STEVAL-ILL083V: standby consumption versus line variation... 4 Figure 7: STEVAL-ILL083V circuit schematic ( of 3)... 5 Figure 8: STEVAL-ILL083V circuit schematic (2 of 3)... 5 Figure 9: STEVAL-ILL083V circuit schematic (3 of 3) /20 DocID Rev 3

5 UM266 Overview Overview The STEVAL-ILL083V features: LED driver main features 0 W flyback converter with quasi-resonant operation Primary side regulation, no optocoupler required High power factor and low THD Open/short LED management ±% Led current regulation Dimming range: 2.5% to 00% BLE connectivity main features Works with Android App - Smart Home Lighting Allows lamp remote power-on / power-off Allows lamp remote dimming RoHS compliant. Smart home lighting architecture The architecture behind this smart home lighting system involves an LED driver (HVLED85PF) to supply and monitor the LED load, an STM32L05x microcontroller to manage the board, a Bluetooth interface (SPBTLE-RF ) for external communication and a remote application 'Smart Home Lighting' running on an Android mobile device to display status information and generate remote commands. Cloud-based IoT functionality is supported with the introduction of a separate ST wireless bridge (STEVAL-IDI004V2). Figure 3: Smart home lighting architecture.2 Hardware description The top side of the STEVAL-ILL083V board is figured below. DocID Rev 3 5/20

6 Overview Figure 4: STEVAL-ILL083V key components (top view) UM266 Key top side components include: J: the input connector for AC voltage input. J2: the output connector for the LED load. J3: the 0-pin/0-position shrouded connector for STM32 microcontroller firmware development and debugging. HF transformer. The bottom side of the STEVAL-ILL083V board is figured below. 6/20 DocID Rev 3

7 UM266 Figure 5: STEVAL-ILL083V key components (bottom view) Overview Key bottom side components include: HVLED85PF: offline constant current LED driver with primary-sensing, integrated MOSFET, high power factor, low THD and ability to supply 5 W controlled power. SPBTLE-RF: the easy-to-use Bluetooth smart master/slave network processor module can act as a Bluetooth smart sensor and hub device at the same time. It provides a complete RF platform with integrated radio, antenna, high frequency and LPO oscillators in a certified solution which optimizes time-to-market of final applications. It can be powered by a 3 V cell battery. STM32L05x: ultra-low power 32-bit RISC microcontroller based on the ARM Cortex - M0+ core, featuring an advanced APB bus, ADC, timer, I²C, SPI and USART. STTHL06 and STTH2L06: ultra-fast high voltage rectifiers, with low reverse recovery current and low thermal resistance. LDL22: a 3.3 V low dropout regulator (LDO) to supply the MCU and SPSGRF. SW: reset switch for the microcontroller and connectivity module. DocID Rev 3 7/20

8 Getting started UM266 2 Getting started 2. Powering the board Smart home lighting board works on VAC input voltage to control 32 V, 322±% ma LED load.it contains one off-line LED driver for lighting and housekeeping power supply, one low drop regulator, 32-bit low power microcontroller and one module for wireless connectivity. 2.2 Smart home lighting board used with SPBTLE-RF and Android app Connect LED load (0 LED/32 V 322 ma) to J2. 2 Connect mains voltage ( VAC) through input connector J. Figure 6: LED load connection 8/20 DocID Rev 3

9 UM266 Getting started 3 Use Android app 'Smart Home Lighting' to control the LED brightness from 2.5% to 00% or to switch LEDs on or off. Figure 7: Android application for smart home lighting DocID Rev 3 9/20

10 Efficiency testing and measurements UM266 3 Efficiency testing and measurements 3. Efficiency, power factor, THD, LED current and current regulation Test conditions Input voltage: VAC, 50 Hz LED load: 32 V, 322 ma±% Table : Test conditions Devices AC source: Agilent 682B Power analyzer: Yokogaba -WT30 Figure 8: STEVAL-ILL083V test setup Table 2: Test results Vin (V) Pin (W) Po (W) Efficiency (%) PF THD (%) LED current Current regulation (%) /20 DocID Rev 3

11 UM266 Figure 9: Input voltage versus LED current Efficiency testing and measurements Figure 0: Input voltage versus PF DocID Rev 3 /20

12 Efficiency testing and measurements Figure : THD versus line variation UM266 Figure 2: Current regulation 2/20 DocID Rev 3

13 UM266 Figure 3: Efficiency curve Efficiency testing and measurements 3.2 IEC class C harmonic measurement The STEVAL-ILL083V is IEC compliant. The harmonic current is measured from the 2nd to the 39th harmonic order as required by IEC class C for lighting equipment. The measured value at 230 VAC is well behind the specified harmonic limits. Figure 4: STEVAL-ILL083V: full load condition 3.3 LED dimming versus output power and LED current The LED dimming is implemented in 5 steps: 2.5, 20, 40, 60 and 80% of the LED power output. It is linear for the entire EU line voltage range and almost independent from line voltage variations. DocID Rev 3 3/20

14 Efficiency testing and measurements Figure 5: STEVAL-ILL083V: LED dimming linearity UM Standby power consumption The STEVAL-ILL083V evaluation board standby power consumption is between 0.4 and 0.6 W for the entire line voltage variation. At the lowest dimming condition, the power consumption is less than standby thanks to the fact that HVLED85 PF IC is working in high voltage startup mode to generate 3.3 V housekeeping power supply. Figure 6: STEVAL-ILL083V: standby consumption versus line variation 4/20 DocID Rev 3

15 6 GND PA3 PA4 PA5 PA6 PA7 PB0 PB PB2 PB8 BOOT0 PB7 PB6 PB5 PB4 PB3 PA UM266 Schematic diagrams 4 Schematic diagrams 3V3 Figure 7: STEVAL-ILL083V circuit schematic ( of 3) R7 0K SW 4 PB5_SDN_RADIO PB4_LED_DIMM C6 00nF 3 PUSHBUTTON 2 U3 00nF C7 C8 00nF 3V3 NRST 3V3 PA0_GPIO_0_RADIO PA_GPIO_3_RADIO PA2_GPIO_2_RADIO GND_PAD 33 VDD_3 PC4_OSC_IN PC5_OSC32_OUT NRST VDDA STM32L05x PA0 PA PA2 PA4 24 PA3 23 PA2 22 PA 2 PA0 20 PA9 9 PA8 8 VDD 7 PA4_SWCLK PA3_SWDIO PA0_LED_OFF 3V3 C9 00nF PA3_GPIO RADIO PA5_SPI_SCK_RADIO PA6_SPI_MISO_RADIO PA7_SPI_MOSI_RADIO PB_SPI_CS_RADIO Microcontroller Uni t Figure 8: STEVAL-ILL083V circuit schematic (2 of 3) R9 8K C5 0µ F C3 3V3 MCU Supply C U2 VOUT GND GND VIN LDL2 2 VADJ GND GND EN R8 0K PA3_ SWDIO PA4_ SWCLK NR ST J V3 00n F 47µ F HEADER 5X2 MCU Power Supply Programming Connector PA_GPIO_3_ RADIO PA2_GPIO_2_ RADIO PA3_GPIO RADIO PA0_GPIO_0_ RADIO 3V3 C20 0µ F U4 GPIO_3 SDN 2 GPIO_2 SPI_CS 0 3 GPIO_ SPI_MOSI 9 4 GPIO_0 SPI_MISO 8 5 Vin SPB TLE-RF 7 SPI_CLK PB 5_SDN _RADIO PB _SPI_CS_RADIO PA7_SPI_MOSI_RADIO PA6_SPI_MISO_RADIO PA5_SPI_SCK_RADIO BLE Transceiver Unit DocID Rev 3 5/20

16 J HEADER mm Pitch Fusable resisitor/0e R2 PB4_LED_DIMM F A R9 K RV VARISTOR R 00K HD06-T Q D 4 C2 22nF/X2 BSS23 L 2.2mH C3 00nF/X2 L2 R4 R 2.2mH 4.7K 4.7K R2 8.2K R22 470K R5 470K R6 470K DNM R7 C8 AC-DC Converter Circuit C 0nF U 00pF R2 220K C 4.7µF PA0_LED_OFF C2 4.7nF D3 STTHL06 HVLED85PF C9 00nF D6 BAT54 R5 0K R8.05R R6 2.7K C0 00µF D5 N448 DMG R3 4.99K Q2 MMBT3904 R0 24K C7 D4 N448 MCU Supply 220µF R4 24K T EF C6 nf/y2 D2 STTH2L06 C5 330µF Lp = 95µH, Np = 25, Ns= 32, Naux = 4 C4 330µF R3 47K R20 DNM 2 J2 HEADER mm Pitch Schematic diagrams Figure 9: STEVAL-ILL083V circuit schematic (3 of 3) UM266 TP TP2 TP3 Mounting Holes DMG N.A COMP DMG ILED NC 9 NC 0 NC NC 2 4 GND DRAIN 3 3 VCC DRAIN 4 2 CS DRAIN 5 SOURCE DRAIN 6 2 6/20 DocID Rev 3

17 UM266 Bill of materials 5 Bill of materials Table 3: STEVAL-ILL083V bill of materials Item Q.ty Ref. Part / Value Description Manufacturer Order code C 0 nf, 630 V±0. Capacitor Murata RDER72J03K2MH03A 2 C2 3 C3 00 nf, 305 V, X2± nf, 305 V, X2±0.2 Capacitor EPCOS B3292C304M Capacitor EPCOS B3292C3223M 4 2 C4, C5 330 µf, 63 V Capacitors Nichion UVRJ33MPD 5 C6 nf, 250 V AC, Y2±0.2 Capacitor Kemet PHE850EA400MA0R7 6 C7 220 µf, 25 V±0.2 Capacitor Nichion UVKE22MEDTD 7 C8 8 C3 9 5 C9, C6, C7, C8, C9 00 pf, 25 V, X7R± nf, 25 V, X7R±0. 00 nf, 25 V, X7R±0. Capacitor Wurtz Capacitor Murata GRM2BR7E04KA0L Capacitors TDK C608X7RE04K080AA 0 C0 00 µf, 35 V±0.2 Capacitor Nichion UVRV0MEDTD C 2 C2 3 C4 4 2 C5, C20 5 D 6 D2 7 D3 8 2 D4, D5 4.7 µf, 6 V, X7R± nf, 25 V, X7R±0. 47 µf, 25 V, X5R±0.2 0 µf, 0 V, X7R±0. HD06-T, 600 V, 0.8 A STTH2L06, 600 V, 2 A STTHL06, 600 V, A N448, 75 V, 200 ma Capacitor Murata GRM2BR7C475KA73L Capacitor Murata GRM88R7H472KA0D Capacitor TDK C326X5RE476M60AC Capacitors Murata GRM2BR7A06KE5K Bridge rectifier Diodes Inc. HD06-T Ultra-fast high voltage rectifier Ultra-fast high voltage rectifier ST ST STTH2L06A STTHL06A Switching diode NXP PMLL448L5 9 D6 BAT54 Schottky diode ST BAT54JFILM 20 F A, 250 V Fuse Littelfuse J, J2 Header 2 I/O connectors Phoenix J3 HEADER 5x2 0-pin/0-position shrouded connector CNC Tech L, L2 mh, 370 ma Inductors EPCOS B8245A05J 24 Q BSS23, 00 V, 0.7 A Transistor Fairchild BSS23L DocID Rev 3 7/20

18 Bill of materials Item Q.ty Ref. Part / Value Description Manufacturer Order code 25 Q2 40 V, 0.2 A Switching transistor Fairchild MMBT RV Varistor Bourns MOV-0D47K UM R2 0R Fusible Yageo FRM-50JR-52-0R 28 2 R, R4 4.7 K, 0.25 W±0.05 Resistors Panasonic ERJ-8GEYJ472V 29 R2 220 K, 0.5 W±0.05 Resistor Stackpole CFM2JT220K 30 R3 47 K, 0.5 W±0.05 Resistor Vishay CRCW20647K0FKEAHP 3 R20 DNM Resistor 32 3 R5, R6, R22 33 R R5, R8 470 K, 0.25 W± K, 0.25 W±0.0 0 K, 0.25 W±0.0 Resistor Panasonic ERJ-6GEYJ474V Resistor Panasonic ERJ-6ENF802V Resistors Yageo RC0805FR-070KP 35 R9 K±0.05 Resistor Panasonic ERJ-6GEYJ02V 36 R7 0 K, 0. W±0.0 Resistor Yageo RC0603FR-070KL 37 R 00 K, 0. W±0.0 Resistor Yageo RC0603FR-0700KL 38 R W±0.0 Resistor Yageo RC0805FR-0700KL 39 R6 40 R8 4 R0 42 R2 43 R3 2.7 K, 0.25 W± R, 0.25 W± K, 0.25 W± K, W± K, 0. W±0.0 Resistor Stackpole RMCF0805FT2K70 Resistor Vishay CRCW206R05FKEA Resistor Yageo RC0805FR-0724KL Resistor Yageo RC0603JR-078K2L Resistor Yageo RC0603FR-074K99L 44 R4 47 K, 0. W±0.05 Resistor Yageo RC0603JR-0747KL 45 SW Switch Panasonic EVP-AA402W 46 3 TP, TP2, TP3 Mounting holes 47 T EFD20 Transformer Wurth U HVLED85PF LED driver ST HVLED85PFTR 49 U2 LDL22 Low dropout regulator ST LDL22 50 U3 STM32L05K6U6 Microcontroller ST STM32L05K6U6 5 U4 SPBTLE-RF BLE module-rf platform ST SPBTLE-RF 8/20 DocID Rev 3

19 UM266 Revision history 6 Revision history Table 4: Document revision history Date Version Changes 30-Jan-207 Initial release. 28-Mar Updated Section "Introduction" and Section : "Overview". 26-Sep Updated Section.: "Smart home lighting architecture" DocID Rev 3 9/20

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