TPS61062YZFR

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The TPS61062YZFR is a monolithic constant current PMIC - LED driver control with an integrated high-side N-MOSFET. It takes the 5V to 24V DC input voltage and regulates it to help drive a single LED in series connected applications. The LED current is set via a single external resistor and is available in a wide adjustment range of 1.2MHz to 60mA. The device can support LEDs up to 120mA operating continuously with up to 3A of peak current. The device has two PWM input pins that can be used for dimming control via a 0 to 5V PWM signal.

The TPS61062YZFR is ideal for space constrained applications where a single LED driver needs to be used. Its operating temperature range of -40 to 85°C makes it suitable for extreme temperature environments. The device also has an input voltage range of 4.5V to 24V, allowing it to be used in automotive and industrial applications where input power can vary widely. Thanks to its integrated P-channel MOSFET and slew rate controlled loop response, the device can provide ultra low EMI risk allowing it to be used in applications that require low-noise operation.

The working principle of the TPS61062YZFR is quite simple. The integrated P-MOSFET acts as a switch to regulate the LED current. When the PWM driven set point voltage applied to the TH pin is higher than the FB pin voltage, the P-MOSFET switches on, increasing the LED current level. Conversely, when the TH set point voltage is lower than the FB voltage, the P-MOSFET turns off, decreasing the LED current level. The device uses current sensing to control the LED current. When the LED current increases, the voltage across the current sense resistor increases. This increase in voltage is converted to ground referenced voltage by the internal circuitry and used to control the P-MOSFET switching.

The TPS61062YZFR provides an ideal solution for a wide range of LED lighting applications. Its ultra-low EMI risk and wide operating temperature range make it suitable for use in automotive and industrial applications where power can vary widely. The device’s single LED driver design and integrated P-MOSFET enable it to be operated in space constrained applications with minimal external components. Furthermore, the integrated PWM support allows for convenient dimming control.

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