전자부품 데이터시트 검색엔진 |
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GS-DC200 데이터시트(PDF) 7 Page - STMicroelectronics |
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GS-DC200 데이터시트(HTML) 7 Page - STMicroelectronics |
7 / 7 page USER NOTES To correctly operate the GS-DC boards family, it is recommended to read the following data sheets: GS-C200/200S; GS-D200/200S; GS-C200 PROG. Supply Voltage The recommended operating maximum supply volt- age must include the ripple voltage on the Vs supply rail and it must not exceed 40V to avoid permanent damage to the board. The boards have internal capacitors connected be- tween the supply and ground pins to assure the electrical stability. These capacitors cannot handle high values of current ripple and they would be permanently damaged if the voltage source imped- ance is not adequately low. The use of a low ESR, high current ripple, 470 µF/50V capacitor located as close as possible to the board is recommended. Suitable units are the Sprague type 672 D or 678 D, the RIFA type PEC 126 or any equivalent unit. Board Protections The GS-DC200 board is protected against occa- sional or permanent short circuits to the supply voltage of the phase output pins. The GS-DC200S and GS-DC200SS are protected also against short circuits to ground or to another phase output. For the GS-DC200S and GS-DC 200SS the protec- tion is of the latching type i.e. when an overload occurs, the board is automatically disabled. To re- start the operations, the supply voltage must be switched off for at least 100 ms. Motor Connection When long wires are needed to connect a remote motor, it is recommended to use twisted pair cables with a proper cross section to minimize DC losses and RFI problems. Phase Current Programming The maximum output current/phase can be pro- grammed by changing the value of the Rx resistor. The factory setting is for maximum current of 1 A GS-DC 200 2 A GS-DC200S / GS-DC200SS. The new value of Rx resistor for a different value of maximum phase current I (A) can be calculated according to the following formulas: GS-D200 I > 1,07 Rx = [ 10 – I (0.993 ∗ I) –1 ]k Ω Rx ≥ 8.2KΩ I < 1,07 Rx = [ I 1– (0.993 ∗ I) ]k Ω GS-D200S I > 2,11 Rx = [ 10 −(0.33 ∗ I) (0.473 ∗ I) –1 ]k Ω Rx ≥ 50KΩ I < 2,11 Rx = [ I 3.03– (1,43 I) ]k Ω The maximum programmed current must not ex- ceed 2.0A for the GS-DC200 and 2.5A for the GS-DC200S/GS-DC200SS. Thermal Characteristics The maximum power dissipation occurs on the GS-D200/GS-D200S modules used on the boards. The thermal resistance case-to-ambient of the inte- gral heatsink of these modules is 5 °C/W. This means a 50 °C temperature increase of the heatsink if the internal power dissipation is 10W. The maximum allowed heatsink temperature is 85 °C. Therefore, according to the ambient tempera- ture and/or the internal power dissipation, forced ventilation may be required. Programming To correctly program motion sequences, see the GS-C200/200S and/or GS-C200 PROG data sheets. 7/7 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. © 1994 SGS-THOMSON Microelectronics – All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. GS-DC200 Family |
유사한 부품 번호 - GS-DC200 |
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유사한 설명 - GS-DC200 |
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