RUR040N02TL-VB: 20V N沟道SOT23封装MOSFET特性与应用

0 下载量 187 浏览量 更新于2024-08-03 收藏 432KB PDF 举报
RUR040N02TL-VB是一款专为低功耗应用设计的N沟道SOT23封装MOSFET,它属于Trench FET系列,采用先进的沟槽技术,旨在提供高效能和小型化的解决方案。这款MOSFET具有以下关键特性: 1. **环保材料**:符合IEC 61249-2-21标准,不含卤素,满足RoHS指令2002/95/EC,体现了对环境友好的制造理念。 2. **性能参数**: - **电压等级**:最大Drain-Source Voltage (VDS) 为20V,适合在高压差条件下工作。 - **导通电阻**(RDS(on))在不同栅极电压下表现优异,例如在4.5V时典型值为0.028Ω,而在1.8V时为0.050Ω。 - **电流能力**:连续工作时,当TJ=150°C时, Drain Current (ID) 在25°C时可达6A,随着温度升高略有调整。 - **开关特性**:允许脉冲 Drain Current (IDM) 达到20A,同时提供了连续 Source-Drain Diode Current (IS) 的限制,如在25°C时IS为1.75A。 3. **散热与功率**:最大功率消耗在25°C下为2.1W,在70°C时降低至1.3W。注意,这些值是在稳态条件下的,并且建议工作在不超过125°C/W的热阻条件下。 4. **温度范围**:该MOSFET的Junction Temperature (TJ) 和 Storage Temperature Range 为-55°C 至150°C,确保了在宽温范围内的可靠运行。 5. **封装与安装**:SOT-23封装,适用于表面安装,特别适合小型电路板,如1"x1" FR4板,且推荐的峰值焊接温度需遵守制造商说明。 RUR040N02TL-VB MOSFET适用于多种应用,包括直流-直流转换器和便携设备负载开关,它的高效率、小型化和环保特性使其成为这些领域的理想选择。在设计电路时,请务必参考产品规格表中的限制条件和注意事项,以确保组件安全稳定地运行。

用c++解决Several currency exchange points are working in our city. Let us suppose that each point specializes in two particular currencies and performs exchange operations only with these currencies. There can be several points specializing in the same pair of currencies. Each point has its own exchange rates, exchange rate of A to B is the quantity of B you get for 1A. Also each exchange point has some commission, the sum you have to pay for your exchange operation. Commission is always collected in source currency. For example, if you want to exchange 100 US Dollars into Russian Rubles at the exchange point, where the exchange rate is 29.75, and the commission is 0.39 you will get (100 - 0.39) * 29.75 = 2963.3975RUR. You surely know that there are N different currencies you can deal with in our city. Let us assign unique integer number from 1 to N to each currency. Then each exchange point can be described with 6 numbers: integer A and B - numbers of currencies it exchanges, and real RAB, CAB, RBA and CBA - exchange rates and commissions when exchanging A to B and B to A respectively. Nick has some money in currency S and wonders if he can somehow, after some exchange operations, increase his capital. Of course, he wants to have his money in currency S in the end. Help him to answer this difficult question. Nick must always have non-negative sum of money while making his operations. Input The first line contains four numbers: N - the number of currencies, M - the number of exchange points, S - the number of currency Nick has and V - the quantity of currency units he has. The following M lines contain 6 numbers each - the description of the corresponding exchange point - in specified above order. Numbers are separated by one or more spaces. 1 ≤ S ≤ N ≤ 100, 1 ≤ M ≤ 100, V is real number, 0 ≤ V ≤ 103. For each point exchange rates and commissions are real, given with at most two digits after the decimal point, 10-2 ≤ rate ≤ 102, 0 ≤ commission ≤ 102. Let us call some sequence of the exchange operations simple if no exchange point is used more than once in this sequence. You may assume that ratio of the numeric values of the sums at the end and at the beginning of any simple sequence of the exchange operations will be less than 104. Output If Nick can increase his wealth, output YES, in other case output NO.

2023-06-03 上传