LM3447

LM3447, versatile power factor correction (PFC) controller, SOT, -0.3 to 22V, 10mA, Princeton Technology Corp

Rated 5 Rating 5 | reviews | Write a review

Price:: US $0.32~0.48 / piece [Get Latest Price]

Reference price:

Qty (lots)	Price/lot
10 ~ 99 :	0.48 / Piece
100 ~ 1000 :	0.32 / Piece

PartNumber:: LM3447

Brand:: Princeton Technology Corp - PTC | Pack: SOT | D/C: 11+

Availability:: Supply Ability: 20000/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

Place Order via Escrow Service

Datasheet:: LM3447 Datasheet download

Not exactly what you want? Post a quick Buying Request!

Sold By

Ms. Lucy's store

(Hong Kong)

100% Positive feedback

Detailed seller ratings

Visit Store

Contact Now

Esrcow Service

Place orders confidently and securely via it

Safe payments
Quick and easy transactions
Free service charges

Learn More >>

Previous Next

Products Upload time: 2013-05-11

From Other Seller

Part Number:LM3447
US $0.32 - 0.48
Quantity:

piece

Product Summary

The LM3447 is a versatile power factor correction (PFC) controller designed to meet the performance requirements of residential and commercial phase-cut dimmer compatible LED lamp drivers. The device incorporates a phase decoder circuit and an adjustable hold current circuit to provide smooth, flicker free dimming operation. A proprietary primary side control technique based on input voltage feedforward is used to regulate the input power drawn by the LED driver and to achieve line regulation over a wide range of input voltage. The applications of the LM3447 include Dimmable A19, R20, PAR30/38 LED Lamps, Recessed LED Downlights and Pendant Lights, Industrial and Commercial Solid State Lighting.

Parametrics

LM3447 absolute maximum ratings: (1)Supply voltage VCC(2): –0.3 to 22 V; (2)HOLD(3): –0.3 to 22 V; (3)Input voltage range VAC(4): –0.3 to 6 V; (4)TSNS, FLT1, FLT2, FF, INV, COMP, ISNS, AUX: –0.3 to 6 V; (5)Output voltage range GATE(2) (Pulse＜20ns): –1.5 to 19 V; (6)Continuous input current IBIAS (4): 10 mA; (7)Junction temperature TJ (5): 165℃; (8)Storage temperature range(5) TSTG: –65 to 150℃; (9)Lead temperature Soldering, 10s: 260℃.

Features

LM3447 features: (1)Integrated Phase Angle Decode; (2)Power Factor Correction with Low Total Harmonic Distortion; (3)Primary Side Control Using Input Voltage Feedforward Technique; (4)Input Power Regulation Scheme with Improved Line Regulation; (5)Fixed Frequency Discontinuous Conduction Mode Operation; (6)Valley Switching Operation to Achieve High Efficiency and Low EMI; (7)Efficient TRIAC Hold Current Management; (8)Thermal Foldback Function for LED Protection; (9)LED Open Circuit and Short Circuit Protection.