Datasheet for LT3477IUF#PBF:
- Manufacturer Part Number : LT3477IUF#PBF
- Manufacturer : AD
- Description : 3A, DC/DC Converter with Dual Rail-to-Rail Current Sense IC
- Series : LT3477
- Reference Price : USD 3.024
- Our Price : We have a better price, contact us by email
- Product Type : LED Driver IC
- Function : Step-Up (Boost) LED Drivers
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 20-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
- Pins : 20
- MFG Package Case : 05-08-1710
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 91
- Working Temperature : -40 to 125C
- Other Part Number : LT3477IUF#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 LT3477 is a current mode, 3A DC/DC step-up converter with dual rail-to-rail current sense amplifiers and an internal 3A, 42V switch. It combines a traditional voltage feedback loop and two unique current feedback loops to operate as a constant-current, constant-voltage source. Both current sense voltages are set at 100mV and can be adjusted independently using the IADJ1 and IADJ2 pins. Efficiency of up to 93% can be achieved in typical applications. The LT3477 features a programmable soft-start function to limit inductor current during start-up. Both inputs of the error amplifier are available externally allowing positive and negative output voltages (boost, inverting, SEPIC, Flyback). The switching frequency is programmable from 200kHz to 3.5MHz through an external resistor.
Available in thermally enhanced 20-pin (4mm × 4mm) QFN and 20-pin TSSOP packages, the LT3477 provides a complete solution for both constant-voltage and constantcurrent applications.
Applications
- High Power LED Driver
- DSL Modems
- Distributed Power
- Input/Output Current Limited Boost, SEPIC, Inverting, Flyback Converters
- Constant-Voltage, Constant-Current Source
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.
