LM3409MYX/NOPB PFET Buck Controller transistor integrated circuit for High Power LED Drives
diode rectifier circuit
,bridge rectifier circuit
PFET Buck Controller for High Power LED Drives
Features
■ 2Ω, 1A Peak MosFET Gate Drive
■ VIN Range: 6V to 42V (LM3409)
■ VIN Range: 6V to 75V (LM3409HV)
■ Differential, High-side Current Sense
■ Cycle-by-Cycle Current Limit
■ No Control Loop Compensation Required
■ 10,000:1 PWM Dimming Range
■ 250:1 Analog Dimming Range
■ Supports All-Ceramic Output Capacitors and Capacitorless Outputs
■ Low Power Shutdown
■ Thermal Shutdown Protection
■ Thermally Enhanced eMSOP-10 Package
Applications
■ LED Driver
■ Constant Current Source
■ Automotive Lighting
■ General Illumination
■ Industrial Lighting
General Description
The LM3409/09HV are P-channel MosFET (PFET) controllers for step-down (buck) current regulators. They offer wide input voltage range, high-side differential current sense with low adjustable threshold voltage, fast output enable/disable function and a thermally enhanced eMSOP-10 package.
These features combine to make the LM3409/09HV ideal for use as constant current sources for driving LEDs where forward currents up to 5A are easily achievable. The LM3409/09HV uses Constant Off-Time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analog and PWM dimming are easy to implement and result in a highly linear dimming range with excellent achievable contrast ratios.
Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.
Typical Application
AOZ1021AI Electronic IC Chip NEW AND ORIGINAL STOCK
AOZ1210AI Electronic IC Chip NEW AND ORIGINAL STOCK
TNY274GN NEW AND ORIGINAL STOCK
| Image | Part # | Description | |
|---|---|---|---|
|
|
AOZ1021AI Electronic IC Chip NEW AND ORIGINAL STOCK |
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 8-SOIC (0.154", 3.90mm Width)
|
|
|
|
AOZ1210AI Electronic IC Chip NEW AND ORIGINAL STOCK |
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 8-SOIC (0.154", 3.90mm Width)
|
|
|
|
TNY274GN NEW AND ORIGINAL STOCK |
Converter Offline Flyback Topology 132kHz SMD-8C
|