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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Zetex Semiconductors PLC ZXLD1362EV3, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Zetex Semiconductors PLC ZXLD1362EV3 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Zetex Semiconductors PLC ZXLD1362EV3. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Zetex Semiconductors PLC ZXLD1362EV3 should contain:
- informations concerning technical data of Zetex Semiconductors PLC ZXLD1362EV3
- name of the manufacturer and a year of construction of the Zetex Semiconductors PLC ZXLD1362EV3 item
- rules of operation, control and maintenance of the Zetex Semiconductors PLC ZXLD1362EV3 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Zetex Semiconductors PLC ZXLD1362EV3 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Zetex Semiconductors PLC ZXLD1362EV3, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Zetex Semiconductors PLC service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Zetex Semiconductors PLC ZXLD1362EV3.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Zetex Semiconductors PLC ZXLD1362EV3 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
ZXLD1362EV3 User Guide issu e 1 1/7 11-01-2008 ZXLD1362EV3 USER GUIDE DESCRIPTION The ZXLD1362EV3, F igure 1, is a PC B constructed using an aluminium b ase for evaluating the ZXLD1362 LE D driver with internal switch [1]. The evaluation board can be used to drive an exter nal choice of LEDs; the total forward voltage across the LEDs dependi ng on [...]
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Page 2
ZXLD1362EV3 User Guide issu e 1 2/7 11-01-2008 ZXLD1362 DEVICE DESCRIPTION The ZXLD1362 is a contin uous mode induc tive driver in a TSOT 23-5 package, for driving one or more series connected LEDs efficientl y from a voltage source hig her t han the LED voltage. T he device includes the output switch and a current sense c ircuit, which requires an[...]
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Page 3
ZXLD1362EV3 User Guide issu e 1 3/7 11-01-2008 ZXLD1362EV3 EV ALUATION BO ARD REFERENCE DESIGN The ZXLD1362EV3 is config ured to the reference desi gn in Figure 2. The target appl icat ion is a dr iver for one or more series-connected LEDs for luminaires i n both commercial and automotive applic ations. The maximum oper ating voltage is 60V, a nd t[...]
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ZXLD1362EV3 User Guide issu e 1 4/7 11-01-2008 ZXLD1362 Operation In normal operation, when voltage is applied at +VIN, th e ZXLD1362 internal ND MOS switch i s turned on. Curren t starts to flow through sense re sistor R1, inductor L1, an d the LEDs. T he current ramps up l inearly, and the r amp rate is determined by the input voltage +VIN an d t[...]
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Page 5
ZXLD1362EV3 User Guide issu e 1 5/7 11-01-2008 ZXLD1362EV3 Connection Point Definition Name Description +VIN Positive supply voltage. GND Supply Grou nd (0V). ADJ Internal voltage ref. pin (1.25V). This pin can be used to a chieve dimming and soft-start, and for switching the output current off. • Leave floating for normal oper ation. • See &ap[...]
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ZXLD1362EV3 User Guide issu e 1 6/7 11-01-2008 PERFORMANCE The system efficiency depends on the sens e resistor, supp ly voltage, s witching induct or, and the number of LEDs. With a 60V suppl y and 15 LEDs, the s witching frequenc y is typically 200 kHz and efficiency lev els >90% are achievable. Visit our website www.zetex.com to find useful t[...]
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ZXLD1362EV3 User Guide issu e 1 7/7 11-01-2008 Definitions Product change Zetex Semiconductors reserves the r ight to alter, without no tice , specifica tions, design, price or cond itions of supply of any product or service. Customers are sole ly responsible for o btaining the latest r elevant information before placing orders. Applications discla[...]