Description
LM3447MTE/NOPB Texas Instruments - Yeehing Electronics
Phase dimmable, primary side power Regulated, PFC Flyback controller for LED Lighting
Pricing (USD)
Quantity | Unit Price |
1 — 99 | 1.212 |
100 — 249 | 1.001 |
250 — 999 | 0.719 |
1,000 + | 0.38 |
The above prices are for reference only.
Specifications
Manufacturer | Texas Instruments |
Product Category | Power Factor Correction - PFC |
RoHS | Y |
Minimum Operating Temperature | - 40 C |
Maximum Operating Temperature | + 125 C |
Mounting Style | SMD/SMT |
Package / Case | TSSOP-14 |
Packaging | Reel |
Features | Adjustable Switch Frequency, Soft Switching, Thermal Shutdown |
Operating Temperature Range | - 40 C to + 125 C |
Series | LM3447 |
Brand | Texas Instruments |
Product Type | PFC - Power Factor Correction |
Factory Pack Quantity | 250 |
Subcategory | PMIC - Power Management ICs |
Unit Weight | 0.004949 oz |
For more information, please refer to datasheet
Documents
LM3447MTE/NOPB Datasheet |
More Information
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. Valley switching operation is implemented to minimize switching loss and reduce EMI. An internal thermal foldback circuit is provided to protects the LEDs from damage based on the temperature sensed by a single external NTC resistor. Additional features include LED open circuit and short circuit protection, cycle-by-cycle FET over-current protection, burst mode fault operation using an internal 812ms fault timer and internal thermal shutdown.