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| MCH185A181JK资料 | |
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MCH185A181JK PDF Download |
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File Size : 116 KB
Manufacturer:ROHM Description:(1) Cx, Rx, Dx are external components. (2) Dx is a clamping diode. The external capacitor is charged to Vcc in the stand-by-state, i.e. no trigger. When the supply voltage is turned off Cx is di scharged mainly trough an internal parasitic diode(see figures). If Cx is sufficiently large and Vcc decreases rapidly, there will be some possibility of damaging the I.C. with a surge current or latch-up. If the voltage supply filter capacitor is large enough and Vcc decrease slowly, the surge current is automatically limited and damage to the I.C. is avoided. The maximum forward current of the parasitic diode is approximately 20 mA. In cases where Cx is large the time taken for the supply voltage to fall to 0.4 Vcc can be calculated as follows : tf > (Vcc - 0.7) x Cx/20mA In cases where tf is too short an external clamping diode is required to protect the I.C. from the surge current. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：MCH185A181JK 厂 家：ROHM 封 装：06+ 批 号：SMD 数 量：120000 说 明：【自己库存】 |
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运 费： 所在地： 新旧程度： |
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| 联系人：陈生 |
| 电 话：0755-82565235.0755-88391555.0755-82807567 |
| 手 机：13798377798 |
| QQ：819175396,302677436,343000888 |
| MSN：mwdsmd@hotmail.com,xiaowei700@hotmail.com |
| 传 真：0755-83177555 |
| EMail：mwdsmd@126.com |
| 公司地址： 深圳市福田区振中路鼎诚国际1018室 |
