ISL6364CCRZ

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Integrated System Level (ISL) 6364CCRZ is an integrated circuit (IC) containing a charge pump and two floating power transistors for producing a third supply rail. It is an integrated solution for providing a negative voltage rail, suitable for use with ICs operating in single supply environments. This device belongs to the Special Purpose category of the product line-up of voltage regulators and controllers offered by Renesas Electronics America, Inc., and is hence classified as PMIC: Voltage Regulators: Special Purpose.

The ISL 6364CCRZ has been designed with features to meet the requirements of applications such as system power supplies, CAN/LIN/RS-485 communications and protection/anti-fuse, automotive antenna- and warning-beacon applications, and transceiver interfaces. It is provided in a 3x2 mm 16-pin QFN package and operates over an operating temperature range of -40 °C to +105 °C. The device has a PWM-based charge-pump functionality, powerful low-resistance MOSFETs, thermal protection, pulse-by-pulse current limiting, and output protection circuitry.

The charge pump has two inputs and two outputs, Vin1 and Vin2 being the two inputs, and Vcc being the output for the negative supply rail, and Vcccp being the output for the positive supply rail. It allows for up to 18V supply voltage range and delivers up to 30 mA output current with a 0.6V reference voltage. In the case that an input voltage is negative with respect to Vin2, the charge pump will be disabled. The charge pump also features thermal protection circuitry to ensure that the temperature at the junction of the PMOS and NMOS transistors do not exceed safe levels.

The two floating power MOSFETs are used to transfer the required voltage from Vcccp to Vcc. They are both compatible with 12V and 24V loads. The device also features an adaptive soft-start feature and a programmable under-voltage lockout for advanced power management. This feature allows for a slow rise in the output voltage, and prevents the IC from being operated at low or unstable voltages, thus maximizing the battery life and providing stable power to the load.

The ISL 6364CCRZ also includes output protection circuitry for a variety of load conditions. This includes providing an over-voltage and an over-current protection for the output voltage by monitoring the voltage at Vcc and Vcccp, as well as voltage-clamping of the two outputs in case of an overload condition. The protection may be used in continuous or short-circuit conditions. It can also be used in single-supply systems with current-limited discharge capability.

The ISL 6364CCRZ is a versatile device with a wide range of applications. It is suitable for applications such as PCs and low-current systems, general-purpose battery chargers, communication interface power supplies, automotive, and industrial applications. It provides an efficient solution for providing a negative voltage rail and its features enable advanced power management, precise control and reliable performance. Its wide range of features and ability to operate in both single- and dual-supply environments makes it a highly suitable device for a variety of applications.

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