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Manual Zetex Semiconductors PLC zxld1350ev2

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  • Zetex Semiconductors PLC zxld1350ev2 - page 1

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 ZXLD1350EV2 EVALUATION BOARD US ER GUIDE DESCRIPTION The ZXLD1350EV2, Figure 1, is an evaluation board for ev aluatin g the ZXLD1350 350mA LED driver with internal switch. The evaluation bo ard can be used to drive 1, 2 or 3 one-watt LEDs, or an external cho ice of LEDs. The number of external conne ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 2

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 ZXLD1350 DEVICE DESCRIPTION The ZXLD1350 is a contin uous mode inductive driver in a TSOT23-5 packag e, for driving one or m ore series connected LEDs efficientl y from a voltage source higher than the LE D voltage. T he device includ es the output switch and a current sense c ircuit, which requires ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 3

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 ZXLD1350EV2 EV ALUATION BO ARD REFERENCE DESIGN The ZXLD1350EV2 is config ured to the reference design in Figure 2. The target appli cat ion is a driver for one or more series-connected 1W white LEDs for torches and other high po wered LED driving applications. The operating voltage is a nomi nal 24 ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 4

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 ZXLD1350EV2 Evaluation Board . Ref Value Package Part Number Manufacturer Notes R S 0.33R 1%,200ppm 0805 NCST10FR330FT RF NIC components R1,R2 Not fitted 0805 Not fitted C1,C2 1uF, 50V 1206 50V, 1206 X7R NMC1206X7R105K50F NIC components C3 Not fitted 0805 Not fitted L1 100uH NPIS53D101MT RF NIC comp ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 5

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 U1 +V I N GN D AD J Z X L D1 3 5 0 E V 2 E V AL UAT IO N BO ARD Bar e boar d: Z DB308R3 L1 SD1 JP 2 C3 Copyr ight Z et ex P lc 2006 a k a k a k R1 JP 3 JP 1 LE D a LE D k RS C1 C2 R2 I n pa rtne r shi p wi th: D1 D2 D3 1 J1 Figure 4: Top View Figure 5: Bottom View ZXLD1350EV2 Connection Point Defini ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 6

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 OTHER FEATURES Dimming The ZXLD1350 provides three dimming options: DC, high-frequ enc y PWM, and low-frequency PW M dimming. DC Voltage Dimming 1. Switch off the power supply. 2. Solder a link across R1 pads. 3. Fit a 10nF capacitor at C3 to decouple the pin. 4. Drive the ADJ pin on the board with ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 7

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 Low Frequency PWM Dimming 1. Switch off the power supply. 2. Solder a link across R1 pads. 3. Make sure C3 is not fitted. 4. Connect a PWM signa l to the ADJ pin via an open co llector NPN transi stor or an open drain N-channe l MOSFET. 5. Alternatively, drive the ADJ p in directly with a PWM signal ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 8

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 PERFORMANCE The system efficiency depend s on the sense resistor, suppl y voltage, s witching inductor and the numb er of 1W LEDs connected in series. The graph belo w shows the efficiency with a 0.33 Ω sense resistor R S, and a 100u H inductor, for 1 to 3 series connected 1W LEDs. With a 24V suppl ...

  • Zetex Semiconductors PLC zxld1350ev2 - page 9

    ZXLD1350EV2 ZXLD1350EV2 User Guide Iss 5 10-04-07 Definitions Product change Zetex Semiconductors reserves the r ight to alter, withou t notice , spe cifications, design , price or condition s of supply of any product or service. Customers are solely responsible for obtaining the latest r elevant information before placing orders. Applications disc ...

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Zetex Semiconductors PLC zxld1350ev2.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Zetex Semiconductors PLC zxld1350ev2, service manual, brief instructions and user manuals Zetex Semiconductors PLC zxld1350ev2. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Zetex Semiconductors PLC zxld1350ev2.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Zetex Semiconductors PLC zxld1350ev2 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Zetex Semiconductors PLC zxld1350ev2.

A complete Zetex Semiconductors PLC manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Zetex Semiconductors PLC zxld1350ev2 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Zetex Semiconductors PLC zxld1350ev2, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Zetex Semiconductors PLC zxld1350ev2, that we can find in the current document
3. Tips how to use the basic functions of the device Zetex Semiconductors PLC zxld1350ev2 - which should help us in our first steps of using Zetex Semiconductors PLC zxld1350ev2
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Zetex Semiconductors PLC zxld1350ev2
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Zetex Semiconductors PLC zxld1350ev2 in a specific country, if it was not possible to solve the problem on our own.

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