LT3596EUHG#PBF

LT3596 is a step-down LED driver. It achieves 10,000:1 digital PWM dimming at 100Hz with fast NPN current sources driving up to 10 LEDs in each channel. 100:1 LED dimming can also be done with analog control of the CTRL1-3 pin. The step-down switching frequency is programmable between 200KHz and 1MHz and is synchronizable to an external clock. This device also provides maximum LED brightness while adhering to manufacturers’ specifications for thermal derating. The derate temperature is programmed by placing a negative temperature coefficient (NTC) resistor on the control pin. Other features include: 1.5% LED current matching between channels, open LED reporting, shorted LED pin protection and reporting, programmable LED current and programmable temperature protection. It is used in application like LED billboards and signboards, mono, multi, full color LED displays, large screen display LED backlighting, automotive, industrial and medical display.

• LEDs disconnected in shutdown
• Adaptive VOUT for increased efficiency, requires no external compensation
• Switch current limit is 1A typical
• ±1.5% accurate LED current matching
• External resistors set LED current for each channel
• Synchronizable to external clock, open, short LED detection and reporting
• Programmable LED thermal derating and reporting, programmable temperature protection
• VIN operating voltage is 6V to 55V, quiescent current from VIN is 2µA maximum
• Operating temperature is -40°C to 125°C
• Package style is 52-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party