UCD7231RTJR

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The UCD7231RTJR is a DC/DC switching controller integrated circuit produced by Texas Instruments. It is designed for use in medium to high power applications where high efficiency is required. The UCD7231RTJR features adjustable switching frequencies, adjustable sampling rates, and adjustable dead time. Additionally, it incorporates adaptive dead-time compensation for improved efficiency in applications using multiple output voltages.

The UCD7231RTJR is designed for use in a wide variety of applications including DC to DC step-down, step-up, buck-boost, and inverting buck-boost converters that require multiple output voltages. It is also suitable for applications where a high peak current is needed, such as motor control, LED lighting, and other power conversion applications. The device is optimized for integration with a wide variety of logic families and analog circuitry.

The UCD7231RTJR is a voltage mode device, meaning it operates by controlling the output voltage of the converter. The output voltage is determined by the reference voltage, which can be adjusted via an external resistor. The output voltage is sensed and compared with the reference voltage. The error signal is then used to control the converter switching frequency and duty cycle in order to regulate the output voltage.

The device features an adjustable dead time, which is used to minimize switching noise, minimize switching losses, and reduce EMI/RFI emissions. Additionally, the device incorporates a slew-rateless control loop, which helps minimize component stress when switching in high power applications. It also features adaptive dead-time compensation, which helps improve efficiency when multiple output voltages are used. The device supports adjustable switching frequencies up to 1.8MHz.

The UCD7231RTJR is designed for use with a wide variety of logic families, including LVCMOS, TTL, and CMOS logic families. Additionally, it is designed to be integrated with a wide variety of analog circuitry and can operate with input voltages of 3.3V up to 24V. The device is also available in dual-in-line and small surface-mount packages and is rated for operation over a temperature range of -40°C to 85°C.

In summary, the UCD7231RTJR is a DC/DC switching controller IC designed for use in a wide variety of medium to high power applications. It features adjustable switching frequencies and dead times, as well as adaptive dead-time compensation. The device is suited for applications that require multiple output voltages, and supports adjustable switching frequencies up to 1.8MHz. It is designed for integration with a wide variety of logic families and analog circuitry, and is available in multiple packages and temperature ratings.

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