ChongMing Group (HK) Int'l Co., Ltd
| Payment Terms | Paypal, Western Union, TT |
| Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund |
| Packaging Details | TSSOP14 |
| Description | LED Driver IC 1 Output AC DC Offline Switcher Flyback Triac Dimming 14-TSSOP |
| Packaging | Cut Tape |
| Package / Case | TSSOP-14 |
| Mounting Style | SMD/SMT |
| Maximum Operating Temperature | + 125 C |
| Minimum Operating Temperature | - 40 C |
| Product Category | Power Factor Correction - PFC |
| Brand Name | Ti |
| Model Number | LM3447MTX |
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Product Specification
| Payment Terms | Paypal, Western Union, TT | Supply Ability | 50000 Pieces per Day |
| Delivery Time | The goods will be shipped within 3 days once received fund | Packaging Details | TSSOP14 |
| Description | LED Driver IC 1 Output AC DC Offline Switcher Flyback Triac Dimming 14-TSSOP | Packaging | Cut Tape |
| Package / Case | TSSOP-14 | Mounting Style | SMD/SMT |
| Maximum Operating Temperature | + 125 C | Minimum Operating Temperature | - 40 C |
| Product Category | Power Factor Correction - PFC | Brand Name | Ti |
| Model Number | LM3447MTX | ||
| High Light | microchip battery management ，power management integrated circuit | ||
LM3447MTX Power Path Management IC PFC Prim Side Pwr Reg PFC FB Controller
FEATURES
Integrated Phase Angle Decode
– Leading and Trailing Edge Compatible
– Over 50:1 Dimming Range
Power Factor Correction with Low Total Harmonic Distortion
Primary Side Control Using Input Voltage Feedforward Technique
Input Power Regulation Scheme with Improved Line Regulation
Constant Power Operation of LEDs to Compensate for Forward Voltage Variations Over Temperature and Lifetime
Fixed Frequency Discontinuous Conduction Mode Operation
Valley Switching Operation to Achieve High Efficiency and Low EMI
Efficient TRIAC Hold Current Management
Thermal Foldback Function for LED Protection
LED Open Circuit and Short Circuit Protection
APPLICATIONS
Dimmable A19, R20, PAR30/38 LED Lamps
Recessed LED Downlights and Pendant Lights
Industrial and Commercial Solid State Lighting
TYPICAL APPLICATION DIAGRAM
DESCRIPTION
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.
The LM3447 is ideal for implementing dimmable, isolated single stage LED lamp drivers where simplicity, low-component count and small solution size are of primary importance. This device is currently available in a TSSOP 14-pin package.
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2008
Total Annual:
5000000-7000000
Employee Number:
80~100
Ecer Certification：
Active Member
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron... CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electron...
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