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Code Mercenaries

1. Features

• Four channel high power LED driver

• Input voltage 7 - 32 V DC

• Constant current output 80 mA to 1000 mA

• Current programmable per channel, 5 mA steps

• Internal 12 bit PWM dimming for each channel

• Extreme dimming range down to 0.024%

• Flicker free spread spectrum PWM dimming

• Maximum output power: 25 W per channel

• Up to 94% efficiency

• Negligible output ripple current

• I2C control and programming interface

• DMX512 control

• IEC62386 (bus interface on piggyback module)

• Tunable White mode for IEC62386

• Wireless add on module (compatible to BT 4.0)

• Autonomous operation, configurable via I2C

• Programmable dynamic light scenarios

2. Functional overview

LED-Warrior04 is a point-of-load constant current

DC/DC regulator for LED lighting applications. It

offers multiple options for lighting control. Direct

control of the four channels via I2C, IEC62386,

DMX512, or wireless is possible as well as

autonomous operation with settings

preprogrammed via I2C, including dynamic light

scenarios.

2.1 Flicker free dimming

LED-Warrior04 uses a very sophisticated dimming

method. PWM is often criticized for generating

flicker and interference with cameras or other

dimmed light sources.

The spread spectrum dimming used in LED-

Wariror04 avoids these problems. Instead of

running at a fixed frequency the spread spectrum

dimming varies the PWM frequency in a pseudo

random pattern. This method is also used by

modern wireless communication to avoid

interference.

In LED-Warrior04 the spread spectrum dimming

varies between 182 Hz and 187500 Hz. The actual

bandwidth depends on the dimming level. At levels

close to 0% or 100% the bandwidth and frequency

are lower.

This ongoing variation of the PWM frequency

eliminates any perceptible flicker and most

interference with other light sources or cameras.

2.2 No artifacts from DC/DC

Ripple from DC/DC converters is a concern for

high quality lighting. LED-Warrior04 runs at very

high switching frequencies to eliminate ripple.

Depending on current settings and the ratio of

input to output voltage the switching frequency

varies between about 400 kHz and 2 MHz.

This puts LED-Warrior04 in a different league

compared to most LED drivers.

2.3 Detailed control

Each of the four channels can be individually

programmed for a LED current between 80 mA

and 1000 mA in steps of 5 mA (184 steps total). In

addition the 12 bit PWM for each channel allows

to set 4096 different brightness levels independent

of the current.

This results in >750000 combinations of current

and PWM for each channel.

3. Mechanical dimensions

Dimensions in mm

Height at thickest point: 16.3 mm

Outer contour tolerance: ±0.2 mm

V1.1.3 January 24th 2020

Intelligent 4 channel LED driver

with bus interfaces

Summary of content (11 pages)

PAGE 1
LED-Warrior04 Intelligent 4 channel LED driver with bus interfaces Code Mercenaries 1. Features • Four channel high power LED driver • Input voltage 7 - 32 V DC • Constant current output 80 mA to 1000 mA • Current programmable per channel, 5 mA steps • Internal 12 bit PWM dimming for each channel • Extreme dimming range down to 0.
PAGE 2
LED-Warrior04 3.1 Pin Description Vin Supply voltage input. Apply a DC voltage of 7V to 32V here. GND Ground reference. DMX+/DMXRS485 DMX port, connect direct to the DMX bus. Close jumper for bus termination. I2C SDA, SCL lines of the I2C interface. Use only SDA, SCL and Gnd to connect to any self supplied controller or computer. +5V is a power output from LED-Warrior04 that is generated from Vin. +5V can supply power to add on modules like the wireless module.
PAGE 3
LED-Warrior04 5. Controlling the LW04 LED-Warrior04 is designed to be controlled via I2C, DMX-512, or IEC62386. It can also be programmed for autonomous sequence operation. 5.1 I2C control The primary configuration and control interface for the LED-Warrior04 is the I2C interface. It allows to set all parameters of the LW04, change the DMX address, set channel currents for IEC62386 mode, and to program it for autonomous operation. 5.1.
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LED-Warrior04 5.1.
PAGE 5
LED-Warrior04 the second byte contains the error code: $01 - Write bit has been reset before a complete table header was transmitted $02 - Write bit has been reset before a complete table (number of data sets according to table header) was transmitted $04 - More data sets than specified in the table header have been written $08 - Write access to other registers terminated the table writing $10 - Write attempt to register 15 without write enable bit being set.
PAGE 6
LED-Warrior04 If a sync bit is set the channel waits for the corresponding channel to come to the end of its sequence instance before it continues with the next iteration of its own sequence. I.e. if Sync1/2 is $04 then channel 1 will wait for channel 3 to reach the end of its sequence iteration before it starts its own next iteration. If channel 3 had already reached its sequence iteration end then channel 1 will continue immediately.
PAGE 7
LED-Warrior04 Code Mercenaries 7. FCC / CE The LED-Warrior04 is sold as a module to be integrated into a device. As such it can not be FCC or CE approved. Code Mercenaries has excerted greatest care in designing this module to minimize RF emission and assure safe and stable operation. Though the use of proper cable materials and correct integration into a device is crucial to assure product safety and interference free operation.
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Code Mercenaries LED-Warrior04 8. Absolute maximum ratings Input Voltage (Vin relative to GND): Input Current: SDA, SCL pin input voltage (relative to GND): DMX pin input voltage (relative to GND): Storage temperature: Ambient temperature with power applied (no output driven): ESD: 0 V to 36 V 4.5 A (average) -0.3 V to 5.5 V -10 V to 15 V -55°C to +115°C -40°C to +85°C 2000 V (human body model) Absolute maximum ratings must not be exceeded or permanent damage to the LED-Warrior04 may result. 8.1.
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Code Mercenaries LED-Warrior04 8.5 Output current accuracy Iout @ 200 mA setting 110 230 100 220 Iout (mA) Iout (mA) Iout @ 80 mA setting 90 80 210 200 70 190 60 180 0 10 20 30 0 10 Vin (V) 6 LED 1 LED 5 LED 3 LED 4 LED 2 LED 3 LED 1 LED 170 380 Iout (mA) Iout (mA) 390 160 150 360 350 340 130 330 30 0 Vin (V) 3 LED 2 LED 4 LED 1 LED V1.1.
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Code Mercenaries LED-Warrior04 Iout @ 500 mA setting Iout @ 1000 mA setting 540 1030 Iout (mA) Iout (mA) 530 520 510 1020 1010 500 490 1000 0 10 20 30 0 Vin (V) 6 LED 1 LED 4 LED 2 LED 20 30 Vin (V) 5 LED 3 LED 5 LED 4 LED 6 LED 3 LED 2 LED 1 LED The above diagrams show typical output currents with strings of white LEDs. Actualy values can vary somewhat depending on the properties of the LEDs and should be tested for the specific application.
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Code Mercenaries LED-Warrior04 9.