TPS40091RHDR Integrated Circuits (ICs)

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The TPS40091RHDR is a high-performance, low-cost synchronous buck converter dual-channel power module with integrated high-side and low-side smart switches and 2 programmable integrated circuits for advanced control and protection functions, enabling high output current, high peak efficiency and fast transient response. It is designed for applications that require a voltage supply from 8 V to 36 V, as well as a regulated regulated output of up to 5 A.

The TPS40091RHDR belongs to the PMIC Voltage Regulators DC DC Switching Controllers category. It is designed to deliver high performance, low standby power consumption and efficient dynamic load current. It offers fast recovery from over-current and over-temperature conditions, making it suitable for high reliability and operation in dynamic load conditions. Additionally, its wide input voltage range allows direct operation from battery, AC adapter or regulated DC sources, with no additional external components needed.

The device includes two integrated H-bridge switch circuits, one for the high-side output and one for the low-side output. Each switch is rated up to 5A and includes short-circuit and over-voltage protection. The P-Channel switch handles the high-side supply and the N-Channel switch handles the low-side supply. Both switches are fully-on/fully-off controlled by the control signal.

The TPS40091RHDR integrates a programmable release cycle controller. The release cycle controller is responsible for controlling the output voltage in either a fast or slow current mode, each with separate programmable release times. Additionally, the device has a peak current limit setting to limit the current drawn by the load.

The TPS40091RHDR feature Fault Status Output that signals via an open-drain totem-pole output when the device is operating in a fault mode. This output can be used to provide an indication of the fault mode to a monitoring or control system. Additionally, the device contains independent overvoltage and overtemperature protections, as well as an integrated current limit (both ensemble over-current and peak current protections).

The TPS40091RHDR is an ideal device for a variety of applications, including laptop and desktop power supplies, automotive and industrial DC/DC converters, LED lighting control, telecom equipment and power supply systems. It is particularly beneficial in applications that require high output current, efficient dynamic load current, low standby power consumption and fast transient response.

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