TPS40195PW

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TPS40195PW is a current-mode step-down DC-DC switching controller with internal power switches from Texas Instruments. This controller features programmable adjustable soft start and output voltage pre-bias. It is suitable for high-efficiency synchronous step-down and step-up conversion applications for automotive and industrial applications.

The TPS40195PW is a monolithic integrated circuit used to control DC-DC switching power converters. It can operate as either a step-down or step-up converter, depending on the configuration used. The switching frequency is adjustable through a nominal 400 kHz to 500 kHz frequency range, resulting in converter designs with maximum efficiency. The device also contains an integrated 5.5V bias voltage regulator to provide an output voltage pre-bias, thus reducing the size and complexity of the overall system.

The TPS40195PW offers adjustable soft-start to reduce the output voltage overshoot under load or power-on, and also features a programmable output voltage. It includes cycle-by-cycle current limit and hiccup-mode short-circuit protection. Other features include programmable soft-stop and forced continuous modulation for faster transient response.

The TPS40195PW is used in a wide range of DC-DC switching applications, including synchronous buck converters, step-up converters, and boost or buck-boost converters. It is suitable for automotive and industrial applications with high efficiency requirements, such as notebook PCs, servers, telecom equipment, and solar applications.

The TPS40195PW operates using a fixed five-page, user-programmable control architecture. This architecture simplifies control design and also provides programmability, allowing the converter designer to customize and optimize the controller for a particular application. It also enables the use of harmonic cancellation to reduce size, cost and electromagnetic interference (EMI).

The first page provides control of the operating parameter, such as output voltage, enable and soft-start/stop enable. The second page provides internal frequency trimming and compensation. The third, fourth, and fifth pages allow the output voltage slew rate, overcurrent protection level and soft start slope to be set.

In summary, the TPS40195PW is a current-mode step-down DC-DC switching controller with internal power switches manufactured by Texas Instruments. It has adjustable soft start and output voltage pre-bias, enabling it to be used in high-efficiency synchronous step-down and step-up conversion applications for automotive and industrial applications. The device operates using a fixed, user-programmable five-page control architecture to simplify control design and provide programmability for custom design optimization.

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