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The TPS92519QDAPRQ1 is a monolithic dual synchronous buck LED driver with a wide operating input voltage range of 4.5V to 65V that can independently power two strings of LEDs connected in series. Implementing adaptive on-time averaging current mode control, it is designed to be compatible with shunt FET dimming technology and dynamic beam headlamps based on LED matrix managers. The adaptive on-time control provides a near constant switching frequency that can be set using the FSET input. Inductor current sensing and closed-loop feedback provide accuracy of ±4% or more over a wide range of input voltage, output voltage, and ambient temperature.

High-performance LED drivers can individually modulate the LED current using analogue dimming or PWM dimming techniques. A linear analogue dimming response in excess of the 16:1 range can be achieved by varying the voltage from 140mV to 2.45V over a high impedance analogue dimming (IADJ) input range. PWM dimming of the LED current is achieved by directly modulating the corresponding UDIM input pin with the desired duty cycle and frequency. The device supports high-frequency shunt FET dimming and is compatible with pixel control techniques using LED matrix managers.

The TPS92519QDAPRQ1 is available in an 8.1mm × 11mm thermally enhanced 32-pin HTSSOP package with a 2.75mm × 3.45mm bottom exposed pad.

Features

- Meets AEC-Q100 for automotive applications

- Class 1: -40°C to 125°C operating ambient temperature range

- Device HBM Classification H1C

- Device CDM Classification C2

- Provides Functional Safety

- Documentation to aid in functional safety system design

- Wide input voltage range of 4.5V to 65V

- Output currents up to 2A with 4% accuracy

- Adaptive on-time average current control

- Nominal switching frequency

- 385kHz and 435kHz for Channel 1 and Channel 2

- 2MHz and 2.1MHz for Channel 1 and Channel 2

- Advanced Dimming Operation

- Precision analogue dimming

- Supports external PWM dimming inputs

- Optimised for external shunt dimming including LED matrix managers

- Switch cycle-by-cycle overcurrent protection

- Switch thermal protection

- Open and short LED fault monitoring and reporting

Applications

- Automotive headlamps and adaptive LED driver modules

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.