Luminus DK-114N-1 Скачать руководство пользователя страница 4 | Manualshive

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Luminus DK-114N-1 Скачать руководство пользователя страница 4

The figures below illustrate the cables included in the DK-114N-1.

Figures 4-7: From left to right: Power supply to driver board cable, Signal cable, Driver board to LED cable, Thermistor cable

Figure 6 depicts two types of driver board to LED cables: the shorter cable (with either 8 - or 10- pins on the LED connector) on the left,

used with LEDs such as PT39, PT40, CBT-40 and PT54, and the longer cable with the two spade connectors on the right, used with LEDs

such as the CBT-90, PT-120 and CBT-120. There are five different variants of the shorter driver board to LED cable : 960011 to be used with

PT39, PT54 and CBT-40; 960043 to be used with PT40-RA; 960044 to be used with PT40-G/B; 960045 to be used with PT54-TE-RA and 960046

to be used with PT54-TE-G/B. These five cables have labels that contain the cable number and the LEDs to which they connect--users must

match the LED they use to the appropriate cable since connecting an incorrect cable can damage the LED. For optimum performance, and

to avoid ringing when pulsing the LEDs, increasing the length of the driver board to LED cable is not recommended.

2.3 Thermal Interface Material (TIM) and Mounting Hardware

The development kit includes precut sheets of eGraf HiTherm 1205, a high performance thermal interface material, and M2x5, M2.5x6

screws required for mounting the LEDs.

Figure 7: TIM sheets

3. User Instructions

The following sections explain the set-up and operation of the DK-114N-1 Development Kit. Additional lab equipment such as a 12 V

laboratory power supply, an oscilloscope, a waveform generator, a multimeter and a photodetector are required to power and use the

DK-114N-1. Table 1 lists a recommended model for the equipment and Appendix D provides an additional list of compatible power

supplies. The use of a table equipped with ESD protection is recommended.

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960017 Rev C © 2013 Luminus Devices, Inc. - All Rights Reserved

Luminus Devices, Inc.

•

T

978.528.8000 • www.luminus.com

1100 Technology Park Drive • Billerica, MA 01821

DK-114N series - Development Kit Manual

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Содержание DK-114N-1

Страница 1: ...ment kit is a comprehensive so lution designed specifically to support the development of single and three channel PT and CBT series Big Chip LEDs Eachchannelofthekit comprisingofahighcurrentdriver an efficient thermal management solution and cables is capa ble of sourcing a drive current of 14 A and ensures that CBT and PT series LEDs are operated at up to 70 W for maximum brightness Thisplugandp...

Страница 2: ...sed on the DK 114N 1 and can easily be replicated in the DK 114N 3 As shown in Figure 1 the DK 114N 1 consists of Heat sink and driver board Cable assemblies Thermal interface materials and mounting hardware User Manual Figure 1 Contents of DK 114N 1 A list of contents of the development kit is given in Appendix A This development kit is designed with flexible features to allow easy evaluation of ...

Страница 3: ...d designed with National Semiconductor s LM3433 IC Figure 3 is mounted close to the heat sink allowing for minimal cable lengths 3 which help prevent current ringing when pulsing LEDs The driver board because of its grounded common anode topology requiresa 12VDCinputwithrespect togroundandcanprovideupto14A toLEDsineitherCWorpulsedmode PWMdimming is achieved with a 0 5 V signal from a function gene...

Страница 4: ...ctinganincorrectcablecandamagetheLED Foroptimumperformance and to avoid ringing when pulsing the LEDs increasing the length of the driver board to LED cable is not recommended 2 3 Thermal Interface Material TIM and Mounting Hardware The development kit includes precut sheets of eGraf HiTherm 1205 a high performance thermal interface material and M2x5 M2 5x6 screws required for mounting the LEDs Fi...

Страница 5: ... the heat sink 3 Place the device on the thermal interface sheet 4 Insertscrewsintheholesofthecoreboardandtighten Toensureequalpressureisexertedbyallscrews alternatetighteningeachscrew until the board is securely fastened The device is now mounted and ready for electrical connections Figure 9 Figure 9 LED mounted on heat sink 5 960017 RevC 2013LuminusDevices Inc AllRightsReserved Luminus Devices I...

Страница 6: ...hese pins correspond to Analog ADJ and POT shorting them enables the on board potentiometer Alternatively the jumper can be removed and signal cable can be used to short the Analog ADJ and POT pins 4 Set the POT to the minimum current setting by rotating it fully counter clockwise The embedded arrow should point towards the 10 on the POT 5 The development kit is now ready to be powered on Turn on ...

Страница 7: ...ED current ILED which is also calculated using where the sense resistance Rsense 0 005 Ω Figure 11 LED Current as a function of Vsense 3 To control the current externally connect the positive of a 0 5 V signal to the Analog ADJ pin and the negative to the GND pin using the signal cable Figure 12 shows the relationship between the LED current and the external voltage Figure 12 LED Current as a func...

Страница 8: ...to test points THRM1 and THRM2 on the driver board Signal Pins 7 and 8 are also thermistor test points and are equivalent to THRM2 and THRM1 Figure 13 shows the relationship between the thermistor coreboard temperature and the resistance between the thermistor test points Note that there is a temperature rise from the thermistor to the LED junction for guidance on estimating the LED junction tempe...

Страница 9: ... negative potential thus enabling LEDs to be in contact directly with the heat sink A basic schematic using three grounded common anode LEDs is shown below in Figure 14 It is important to note that while the heat sink is at ground there is still power passing through it Figure 14 Grounded common anode configuration 9 960017 RevC 2013LuminusDevices Inc AllRightsReserved Luminus Devices Inc T 978 52...

Страница 10: ...3 Hz 12 V 4 2 A 5 x 3 34 x 1 57 DIN Rail S8SP 05005 50 W Lambda Power 90 264VAC 47 63Hz 12 V 3 A 3 62 x 1 46 x 6 26 Enclosed Chassis mount SWS Series 60 W Globtek Inc 90 264 VAC 47 440Hz 12 V 5 A 5 24 x 2 39 x 1 62 External Desktop DPS50 75W Lambda Power 90 264 VAC 47 63Hz 12 V 6 3 A 3 7 x 1 69 x 6 69 Enclosed Chassis mount SWS Series 100 W Lambda Power 90 264 VAC 47 63Hz 12 V 8 5 A 3 78 x 1 77 x ...

Страница 11: ... 114N series Development Kit Manual Table 5 Driver board specifications Input Specifications Value Unit Note Input Voltage 12 V Max Supply current channel 7 A Efficiency 90 Output Specifications Value Unit Note Max output current 17 A Output current ripple pulsed 10 of set current Output Pulse Rise time 1 μs Output Pulse Fall Time 1 μs Output Setting Time 5 μs min current to max Control Specificat...

Страница 12: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Luminus Devices DK 114N 1 ...

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