The TPS61500 is a monolithic switching regulator with integrated 3-A, 40-V power switch. It is an ideal driver for high brightness 1-W or 3-W LED. The device has a wide input voltage range to support application with input voltage from multi-cell batteries or regulated 5-V or 12-V power rails.
The LED current is set with an external sensor resistor R3, and the feedback voltage that is regulated to 200 mV by current mode PWM (pulse width modulation) control loop, as shown in Typical Application Circuit. The device supports analog and pure PWM dimming methods for LED brightness control. Connecting a capacitor to the DIMC pin configures the device to be used for analog dimming, and the LED current varies proportional to the duty cycle of an external PWM signal. Floating the DIMC pin configures the device for pure PWM dimming with the average LED current being the PWM signal’s duty cycle times a set LED current.
The device features a programmable soft-start function to limit inrush current during start-up, and it has other built-in protection features, such as pulse-by-pulse overcurrent limit, overvoltage protection, and thermal shutdown. The TPS61500 is available in 14-pin HTSSOP package with PowerPAD.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha |
|---|---|---|---|---|---|
| * | Hoja de datos | TPS61500 High-Brightness, LED Driver With Integrated 3-A, 40-V Power Switch datasheet (Rev. F) | PDF | HTML | 30/05/2019 | |
| Informe | Common LED Functions and LED Driver Design Considerations | 21/09/2020 | |||
| Nota sobre la aplicación | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 11/12/2018 | |||
| Nota sobre la aplicación | TPS61500 SEPIC Configuration | 5/04/2018 | |||
| Nota sobre la aplicación | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 15/06/2017 | |||
| Analog Design Journal | Design considerations for a resistive feedback divider in a DC/DC converter | 26/04/2012 | |||
| Nota sobre la aplicación | Analog Dimming With the TPS61500 Using an Analog Input Signal | 30/04/2009 | |||
| Más documentación | Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies | 15/02/2001 |
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
The TPS61500EVM-369 facilitates evaluation of the TPS61500 High Brightness LED Driver IC.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
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