TPS61162DYFFR Integrated Circuits (ICs)

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LED drivers, commonly known as LED regulators, are devices used to regulate and provide electrical power to LED systems. LEDs require DC power and the ability to dim, and LED regulators enable both of these functions. In order to drive a LED efficiently, a regulator must be able to adjust the current and voltage supplied to the LED. The TPS61162DYFFR is a high-efficiency, high-current, ultra-slim, low-profile, integrated step-up DC-DC converter intended for driving high-brightness LEDs (HBLEDs). Its small form factor and high efficiency make it an ideal choice for portable applications.

The general application field of the TPS61162DYFFR is mainly consumer electronics and automotive lighting, and it can provide a superior solution for LED-based backlighting, projection displays, automotive HUD/center information displays, HDTV backlighting, and other applications that require very high LED currents or dimming capabilities. This device integrates both a high-current gate driver and a low power high-voltage DC/DC converter, using a multi-stage topology, which can convert any input voltage between 3 V and 5.5 V up to an output voltage of 32 V.

The TPS61162DYFFR has several working modes, which can be programmed with a single external resistor connected to the REF pin. The device can be configured to provide a continuous current, depending on the value of the external resistor, or it can be operated in a constant-voltage mode in case of low LED forward voltage. Additionally, the device can be configured to operate in a brightness control mode with PWM dimming, or in a brightness controlled on/off mode with different dimming ratios.

The internal switching frequency of the TPS61162DYFFR can be programmed with an external oscillator capacitor connected to the OSC pin. The switching frequency can be selected between 1 MHz and 5 MHz with an external capacitance between 5 pF and 27 pF. The device is also equipped with an EN/PWM input pin, which can be used to control the output current. The EN pin can be used to turn the device on/off, and the PWM pin can be used to control the output current in different modes depending on its duty cycle.

The TPS61162DYFFR showcases a thermal shutdown protection function, over-voltage protection, over-load protection, and a soft start function. Additionally, the device has a wide input voltage range, low shutdown current, and ultra-fast transient response. The TPS61162DYFFR’s efficiency is up to 95%, allowing long life and reducing the system cost of powering multiple series-connected LEDs. These features and protections make the TPS61162DYFFR a reliable and efficient solution for portable applications.

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