Datasheet for LT3474IFE-1#PBF:
- Manufacturer Part Number : LT3474IFE-1#PBF
- Manufacturer : AD
- Description : Step-Down 1A LED Driver IC
- Series : LT3474
LT3474-1 - Reference Price : USD 2.832
- 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 : 16-Lead TSSOP w/ EP
- Pins : 16
- MFG Package Case : 05-08-1663 (BA)
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 95
- Working Temperature : -40 to 125C
- Other Part Number : LT3474IFE-1#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 LT3474/LT3474-1 are fixed frequency step-down DC/DC converters designed to operate as constant-current sources. An internal sense resistor monitors the output current allowing accurate current regulation, ideal for driving high current LEDs. High output current accuracy is maintained over a wide current range, from 35mA to 1A, allowing a wide dimming range.
Unique PWM circuitry allows a dimming range of 400:1, avoiding the color shift normally associated with LED current dimming.
The high switching frequency offers several advantages, permitting the use of small inductors and ceramic capacitors. Small inductors combined with the 16 lead TSSOP surface mount package save space and cost versus alternative solutions. The constant switching frequency combined with low-impedance ceramic capacitors result in low, predictable output ripple.
With their wide input range of 4V to 36V, the LT3474/ LT3474-1 regulate a broad array of power sources, from 5V logic rails to unregulated wall transformers, lead acid batteries and distributed power supplies. A current mode PWM architecture provides fast transient response and cycle-by-cycle current limiting. Frequency foldback and thermal shutdown provide additional protection.
Applications
- Automotive and Avionic Lighting
- Architectural Detail Lighting
- Display Backlighting
- Constant Current Sources
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.
