Datasheet for LT3956EUHE#PBF:
- Manufacturer Part Number : LT3956EUHE#PBF
- Manufacturer : AD
- Description : 80VIN, 80VOUT Constant-Current, Constant-Voltage Converter IC
- Series : LT3956
- Reference Price : USD 2.8
- 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 : 36-Lead QFN (5mm x 6mm x 0.75mm w/ EP)
- Pins : 28
- MFG Package Case : 05-08-1836
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 61
- Working Temperature : -40 to 125C
- Other Part Number : LT3956EUHE#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 LT3956 is a DC/DC converter designed to operate as a constant-current source and constant-voltage regulator. It is ideally suited for driving high current LEDs. It features an internal low side N-channel power MOSFET rated for 84V at 3.3A and driven from an internal regulated 7.15V supply. The fixed frequency, current-mode architecture results in stable operation over a wide range of supply and output voltages. A ground referenced voltage FB pin serves as the input for several LED protection features, and also makes it possible for the converter to operate as a constant-voltage source. A frequency adjust pin allows the user to program the frequency from 100kHz to 1MHz to optimize efficiency, performance or external component size.
The LT3956 senses output current at the high side of the LED string. High side current sensing is the most flexible scheme for driving LEDs, allowing boost, buck mode or buck-boost mode configuration. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL input provides additional analog dimming capability.
Applications
- High Power LED
- Battery Charger
- Accurate Current Limited Voltage Regulator
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.
