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2022-09-24 21:48:02
Supply switch controller ISL6565ACV-T
VR10 multiphase PWM controller with precision rDS(ON) or DCR current sensing. ISL6565A, ISL6565B control microprocessor core voltage regulation by driving up to 3 parallel synchronous rectification buck channels. Multiphase buck converters use interleaved timing to multiply the channel ripple frequency, reducing input and output ripple currents. The difference between the ISL6565A and the ISL6565B is that the ISL6565A uses rDS(ON) current sensing, while the ISL6565B uses DCR current sensing for each phase. These cost and space-saving current sensing methods are used for adaptive voltage positioning (droop), channel current balancing, and overcurrent protection. To ensure the accuracy of the voltage drop, a programmable internal temperature compensation function is used to compensate for the effects of rDS(ON) and DCR temperature sensitivity. A unity gain, differential amplifier provides the sense voltage. The potential difference between the far field and the local field is eliminated using a telemetry amplifier. A high-accuracy threshold-sensitive enable input can be used to precisely coordinate the startup of the ISL6565A, ISL6565B with the Intersil MOSFET driver IC. Dynamic-VID™ technology enables seamless dynamic video changes. Bias pin allows precise voltage bias setting independent of VID setting.