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The LT3932EUFD#PBF uses the Silent Switcher®<.sup> architecture for greater reduction of EMI/EMC emissions, utilizing fixed frequency, peak current control and providing PWM dimming for the LED strings.The LED current is programmed via analog voltage or pulse duty cycle on the CTRL pin. The output voltage limit can be set via a resistive voltage divider connected to the FB pin.

The switching frequency is programmable via an external resistor connected to the RT pin or an external clock on the SYNC/SPRD pin, and ranges from 200kHz to 2MHz. when the optional spread spectrum function is enabled, the frequency varies from 100% to 125% to reduce EMI. when external signals are not available, the LT3932 also includes drivers for driving an external high end PMOS to for PWM dimming and an internal PWM signal generator for analogue control of PWM dimming.

Other features include LED current monitoring, precise EN/UVLO pin thresholds, open-drain fault reporting for open and short-circuit load conditions and thermal shutdown.

Features

LED current regulation capability: ±1.5%

Output voltage regulation capability: ±1.2%

5000:1/10000+:1 PWM dimming at 100Hz (LT3932/LT3932-1)

128:1 internal PWM dimming

Spread Spectrum (SSFM)

Silent Switcher® architecture for low EMI

Input voltage range: 3.6V to 36V/li>

LED string voltage: 0V to 36V

200kHz to 2MHz with SYNC

99.9% maximum duty cycle

20:1 analogue or duty cycle LED current control

Open/short LED protection and fault indication

Accurate LED current detection with monitored output

Programmable UVLO

Thermally enhanced 28-pin (4mm × 5mm) QFN package

AEC-Q100 certified for automotive applications

Applications

Automotive lighting

Industrial and general lighting

Machine vision systems

• 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.