TPS92411PDBVT

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The TPS92411PDBVT power management IC (PMIC) is an integrated circuit designedto drive light-emitting diodes (LEDs) and can be used in place of discrete drivercomponents. It is designed to offer a cost-effective solution for low to mid-power LEDlighting applications. TPS92411PDBVT is suitable for a wide range of LED driverslike LED wall washers and LED street lighting.

The integrated circuit contains circuitry for over-voltage protection (OVP),under-voltage protection (UVP), open-circuit protection (OCP), short-circuitprotection (SCP), thermal protection (TP) and over-current protection (OCP). Theintegrated circuit also contains a precision voltage reference, an N-Channel MOSFETdriver and a loop control for constant current control. The integrated circuit canalso be used for the implementation of a Pulse Width Modulated (PWM) LED driver.

The TPS92411PDBVT operates with a constant current source, meaning that ituses a single input voltage, VIN, to drive the LED load. This eliminates theneed for a separate voltage source or linear voltage regulators. The integratedcircuit also features a built-in transconductance amplifier (OTA) for controllingthe LED load current. This allows the current to be accurately monitored andcontrolled over the entire range of operation. The integrated circuit also containslow ripple switching frequencies up to 500 kHz, allowing the use of smallerinductor and capacitor components. The integrated circuit also features lowthermal resistance, making it suitable for operation at high power levels.

The integrated circuit requires two external components, an inductor anda capacitor, to complete the design. The inductor is used for energy storage andconversion, and the capacitor for smoothing of the output voltage ripple. Theinductance of the selected inductor must match the current limit of the TPS92411PDBVTto ensure the accurate control of the LED load current. The externalcapacitor should also be selected to match the ripple current requirements ofthe application.

The TPS92411PDBVT PMIC-LED driver can be used in a wide range ofLED lighting applications, including LED wall washers, LED street lights andother low to mid-power LED lighting solutions. It is an ideal choice for lowRohs compliance and long life performance. Furthermore, the integratedcircuit offers excellent thermal performance, making it suitable for operationat high power levels. Its small size and low cost make it an attractivechoice for LED lighting applications. In summary, the TPS92411PDBVT offersa high performance LED driver solution that is robust, reliable and highlycost-effective.

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