五,电路原理图 ![]() 六.产品PDF文档
七,功能概述
Operation in Current Limit
When a heavy load is applied to the output of the JTM4610,the load current is limited to the value of ILIM determined by RSET. See Figure 2, "Overload Operation." Since the load is demanding more current than ILIM, the voltage at the output drops. This causes the JTM4610 to dissipate a larger than nor-mal quantity of power, and its die temperature to increase. When the die temperature exceeds an over-temperature limit, the JTM4610 will shut down until is has cooled sufficiently, at which point it will startup again. The JTM4610 will continue to cycle on and off until the load is removed, power is removed, or until a logic high level is applied to ON. Enable Input In many systems, power planes are controlled by integrated circuits which run at lower voltages than the power plane itself. The enable input ON of the JTM4610 has low and high threshold voltages that accommodate this condition. The threshold voltages are compatible with 5V TTL and 2.5V to 5V CMOS. Reverse Voltage The JTM4610 is designed to control current flowing from IN to OUT. If a voltage is applied to OUT which is greater than the voltage on IN, large currents may flow. This could cause damage to the JTM4610. 八,相关产品
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