Datasheet for LT3797IUKG#PBF:
- Manufacturer Part Number : LT3797IUKG#PBF
- Manufacturer : AD
- Description : Triple Output LED Driver Controller IC
- Series : LT3797
- Reference Price : USD 4.432
- Our Price : We have a better price, contact us by email
- Product Type : LED Driver IC
- Function : Step-Down (Buck) LED Drivers
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
- Pins : 52
- MFG Package Case : 05-08-1874
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 45
- Working Temperature : -40 to 125C
- Other Part Number : LT3797IUKG#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LT3797 is a triple output DC/DC controller designed to drive three strings of LEDs. The fixed frequency, current mode architecture results in stable operation over a wide range of supply and output voltages. The LT3797 includes an integrated DC/DC converter to produce a regulated 7.5V supply for the N-channel MOSFET gate drivers of the three channels. This high efficiency converter enables the part to operate from a wide input voltage range from 2.5V to 40V.
The LT3797 is designed so that each converter can use the most suitable configuration to drive its LED load, whether step-up, step-down or a combination. Two key features enable this flexibility: first the LT3797 can sense output current at the high side of the LED string; and second, the voltage feedback pin, FBH, is referred to the ISP current sensing input. The CTRL inputs provide output current analog dimming capability. The TG drivers level shift the PWM signals to drive the gates of external LED-disconnect P-channel MOSFETs, allowing high PWM dimming range, and providing LED overcurrent protection and short-circuit protected boost capability.
Applications
- Automotive and Industrial Lighting
- RGB Lighting
- Billboards and Large Displays
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
