ST STEVAL-ILH007V1 User manual

June 2015 DocID025509 Rev 1 1/30
30
UM1694
User manual
STEVAL-ILH007V1: 150W HID digital ballast based on STLUX385A
Introduction
This document describes 150 W high intensity discharge (HID) digital ballasts driven by
STLUX385A devices. This platform is a solution to drive HID lamps (sodium and metal
halide). The board is composed of two stages:
1. Power factor corrector (PFC), based on boost topology to correct the AC input current
in phase with AC voltage mains.
2. Inverter, based on full bridge topology to drive the lamps.
The STLUX385A digital controller drives both stages.
Figure 1. STEVAL-ILH007V1
www.st.com

Contents UM1694
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Contents
1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 STEVAL-ILH007V1 firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.1 Implemented peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1.2 Used pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.3 Module summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Firmware download into the STLUX MCU . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 STEVAL-ILH007V1 evaluation board operation . . . . . . . . . . . . . . . . . . 18
5.1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix A STEVAL-ILH007V1 schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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UM1694 List of tables
30
List of tables
Table 1. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2. Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. HID FW user source file list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. Used pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5. Module information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 6. Executable summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 7. Bill of material (BOM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 8. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

List of figures UM1694
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List of figures
Figure 1. STEVAL-ILH007V1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Top layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Bottom layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. STEVAL-ILH007V1 block diagram of the firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 5. STEVAL-ILH007V1 finite state machine lamp management . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. SMED4 PFC state machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7. SMED0 bridge low side drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8. SMED1 bridge high side drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9. Voltage reference for bridge peak current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 10. RLink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 11. RLink-ADP-ST7-STM8-V1.2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 12. RFlasher7 configuration - select the processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 13. RFlasher7 configuration - open .HEX file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 14. RFlasher7 configuration - program the STLUX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 15. STVP - download FW into the program memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 16. Auxiliary power supply scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 17. PFC and input section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 18. Full-bridge scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 19. Control section scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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1 Features
The STEVAL-ILH007V1 board has the following features:
•GREEN LED: indicates the normal operation of the board
•RED LED: indicates the fault condition of the board
•UART: connector for serial data communication to a PC to monitor the system
parameters.
Table 1. Features
Parameter Notes and conditions Min. Typ. Max. Unit
Input characteristics
V
in
input voltage 185 230 265 V
Eff efficiency V
in
= 230 V, load = 150 W 90 %
PF power factor V
in
=185 V; load = 150 W 0.98
THD% input current THD V
in
=185 V; load = 150 W 10 %
Load characteristics
Load lamp type sodium or metal halide
Pout lamp power 150 W
Iout lamp current 1.6 A

Connectors UM1694
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2 Connectors
With reference to the schematic in Appendix A:
Figure 2. Top layout
Figure 3. Bottom layout

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Table 2. Connectors
Pin Description
J1 Power supply connector / 230Vac – 3 way screw terminal
J2 Power connector for power line modem / 230V - 2 way screw terminal
J3 Output connector for lamp connection - 2 way screw terminal
J4 Connector for UART output- 24 way terminals
J5 SWIM Connector to FW download and debug
J7 DALI Connector 12 way terminals
J8 UART output - stereo jack connector 3.5mm

Firmware UM1694
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3 Firmware
The MCU used is an STLUX385A, which is part of the MASTERLUX™ family of ST digital
devices tailored for lighting and power conversion. The STLUX385A has been successfully
integrated in a wide range of architectures and applications, including simple buck
converters for LED driving, boosts for power factor correction, half-bridge resonant
converters for dimmable LED strings, full-bridge control in HID lamp ballasts, wireless power
chargers and TV power supplies.
This MCU has 16 MHZ CPU frequency, 32 Kbyte program memory and 2 Kbyte of RAM.
The firmware is organized as a collection of files inside a project for Raisonance RIDE7, a
fully-featured Integrated Development Environment (IDE) that provides seamless
integration and easy access to the complete range of Raisonance tools and features for
writing, compiling and debugging application code from a single user interface.
The firmware is released as an Intel HEX file (Rev01.HEX).
3.1 STEVAL-ILH007V1 firmware
The firmware running the STLUX385A of the STEVAL-ILH007V1 allows the MCU to
manage the PFC and full-bridge of the board.
STEVAL-ILH007V1 is also able to manage UART communication with a PC to show system
status information.
Following CPU clock and peripheral configuration, the MCU manages the board as a finite
state machine, as shown below.
Figure 4. STEVAL-ILH007V1 block diagram of the firmware

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Figure 5. STEVAL-ILH007V1 finite state machine lamp management
The following table lists the user source.c files for the STEVAL-ILH007V1.
3.1.1 Implemented peripherals
Analog to Digital Converter (ADC)
Table 3. HID FW user source file list
File Brief descriptions
main.c Main module
adc.c ADC peripheral configuration
stlux_smed.c Automatically generated by SMED_Configurator, a PC software application
stlux_it.c Manages the IRQ functions
stmr.c Manage the requested timing
uart.c
•ADC0 VIN Measures the main input voltage
•ADC1 VBUS Measures the output voltage of the PFC stage
•ADC2 PFC_ISENS Currently not used
•ADC3 PFC_OK Currently not used
•ADC4 VLAMP Measures of the voltage across the lamp
•ADC5 VOUT33 Checks the presence of the 3.3 V voltage regulator
•ADC6 VTEMP Measures the temperature of the board; the sensor is
currently not calibrated

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Analog comparators
16-bit system timer
State machine event driven
CPP0 Currently not used
CPP1 Currently not used
CPP2 Currently not used
CPP3 Sets the bridge peak current value
STMR Sets the correct timing of all events for the application:
– PID controller
– drive signals of the bridge
– systems state machine
SMED0 Provides for the high frequency signal generation of the
bridge; it is also used for ZCD signal synchronization and
bridge peak current control
SMED1 Provides for the high frequency signal generation of the
bridge; it is also used for ZCD signal synchronization and
bridge peak current control
SMED2 Currently not used
SMED3 Currently not used
SMED4 Generates the signals for the PFC switch
SMED5 Generates the reference voltage for CPP3 comparator

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3.1.2 Used pins
Table 4. Used pins
PIN Function NetName Description
PIN1 PWM0 PWM0 Generates the high frequency signal to drive the bridge low side
PIN2 DIGIN0 Digital input used to detect the PFC ZCD
PIN3 DIGIN1 Digital input used to detect the Bridge ZCD
PIN4 PWM1 PWM1 Generates the high frequency signal to drive the bridge high side
PIN5 GPIO1[2] PWM2 Generates the low frequency signal to drive the bridge low side
PIN6 DIGIN2 Currently not used
PIN7 DIGIN3 Currently not used
PIN8 PWM5 PWM5 PWM to voltage generator used as a reference for the analog comparator
CPP[3]
PIN9 SWIM SWIM data interface
PIN10 NRST Reset
PIN11 VDDIO Digital and I/O power supply
PIN12 GNDIO Digital and I/O ground
PIN13 VOUT 1.8 V regulator capacitor
PIN14 GPIO0/4 Red LED
PIN15 GPIO0/5 Green LED
PIN16 PWM4 Generate the signal to drive the PFC switch.
PIN17 DIGIN4 Currently not used
PIN18 DIGIN5 Currently not used
PIN19 GPIO1[3] PWM3 Generates the low frequency signal to drive the bridge high side
PIN20 GPIO0/2 GPIO2 U6 L6390 output enable
PIN21 GPIO0/3 GPIO3 U7 L6390 output enable
PIN22 UART_TX Currently not used
PIN23 UART_RX Currently not used
PIN24 CPP3 IPEAK_OUT Analog comparator input used to detect the bridge peak current control
PIN25 CPP2 Currently not used
PIN26 CPM3 CPP3 analog comparator input external reference voltage
PIN27 CPP1 Currently not used
PIN28 CPP0 Currently not used
PIN29 VDDA Analog power supply
PIN30 GNDA Analog ground
PIN31 ADCIN7 Currently not used
PIN32 ADCIN6 VTEMP Measures the output voltage of the board temperature sensor

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Figure 6. SMED4 PFC state machine
PIN33 ADCIN5 VOUT3.3 Measures the output voltage of 3.3 V regulator used to power the micro
PIN34 ADCIN4 VLAMP Measures the voltage across the lamp
PIN35 ADCIN3 PFC_OK Currently not used
PIN36 ADCIN2 PFC_ISENS Currently not used
PIN37 ADCIN1 VBUS Measures the output voltage of the PFC stage.
PIN38 ADCIN0 VIN Measures the main input voltage
Table 4. Used pins (continued)
PIN Function NetName Description

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Figure 7. SMED0 bridge low side drive
Figure 8. SMED1 bridge high side drive

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Figure 9. Voltage reference for bridge peak current
3.1.3 Module summary
Table 5. Module information
Module
Code size Constant size Data size Page0 size Bit size
Static Overlayable Static Overlayable Static Overlayable Static Overlayable Static Overlayable
Main 1014 73
Stlux_confi
g1014 73
Stlux_it 510 76 1
Stmr 145
Uart 412 24
ADC 604
Table 6. Executable summary
Total EEPROM storage requirement 0000H (0)
Total DATA storage requirement 02C9H (713)
Total CODE storage requirement 11BCH (4540)

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4 Firmware download into the STLUX MCU
4.1 Setup
To download the firmware to the STLUX on the board, you need:
Hardware
•an HID evaluation board
•a RAISONANCE RLink
•a RAISONANCE RLink connection adapter for STM8 and ST7
•a PC with Microsoft Windows™
•a 3.3 V power supply
Software
•Ride7 application development software
•RFlasher7 (if you only want to download the compiled FW code)
4.2 Installation
Begin with the connections:
•link the RAISONANCE RLink to the PC with a USB cable (Type A male / Type B male).
•link the 24-pin flat cable of the RAISONANCE RLink to the RLink connection adapter
for STM8 and ST7
•link the two SWIM connectors with a 4-wire SWIM cable for the RAISONANCE RLink
connection adapter for STM8 and ST7 and for the board that you are going to program
•connect the 3.3 V to supply the STLUX
On the PC, open the RFlasher7 software interface for programming the STLUX
microcontroller; it provides an easy-to-use and efficient environment for reading, writing to
and verifying device memory and option bytes.
Figure 10. RLink Figure 11. RLink-ADP-ST7-STM8-V1.2

Firmware download into the STLUX MCU UM1694
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Follow these steps:
1. configure the RFlasher7 project properties to work with the STLUX385
Figure 12. RFlasher7 configuration - select the processor
2. load the Intel HEX file for download (REV01.HEX)
Figure 13. RFlasher7 configuration - open .HEX file
3. program the STLUX microcontroller

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Figure 14. RFlasher7 configuration - program the STLUX
4. reset and run
Figure 15. STVP - download FW into the program memory

STEVAL-ILH007V1 evaluation board operation UM1694
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5 STEVAL-ILH007V1 evaluation board operation
Once the STLUX has been programmed with the right firmware, you can commence
evaluation board operation.
5.1 Setup
To run the evaluation board, you need:
Hardware
•a STEVAL-ILL007V1 evaluation board
•an AC power supply able to provide 230V
•a 150 W sodium or metal halide lamp
5.2 Operation
•connect the lamp to the J3 terminal
•connect the AC source to the J1 terminal
•switch the AC source on and wait a few minutes for the lamp to reach the nominal
power

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UM1694 STEVAL-ILH007V1 schematic
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Appendix A STEVAL-ILH007V1 schematic
Figure 16. Auxiliary power supply scheme
D8
SM6T220A
D14
TMMBAT46
R45
8.2k
C20
100pF
L3 4.7uH
R41
47k
D9 STPS2150L4
TRANSF MAGNETICA
1
5 4 3
10
8 7
6
R46
24k
C19
470nF 50V
C14
470uF 25V +
R98
22
U4
ALTAIR04-900
COMP
7
DRAIN4 16
IREF
5
FB
6
VDD 3
GND
4
SRC1
1
SRC2
2
DRAIN3 15
DRAIN2 14
DRAIN1 13
C16
470nF 50V
C7 470uF 25V
+
R44
2.7
R34
33k
C8
470nF 50V
D11
STTH1L06A
U5
LD29080S33R
VIN
1
GND
2
VOUT 3
C25
1nF
C15
10uF 25V
+
C9 470uF 25V
+
R40
47k
D13 STPS1L30A
C26
4.7nF
R42
2.7
C17
470nF 50V
C53
1nF 500VDC
R36
47k
C18
10uF 25V
+
VOUT3.3VOUT3.3
4.5V 3.3V
+425V
12V

STEVAL-ILH007V1 schematic UM1694
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Figure 17. PFC and input section