Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
High Quality, Reasonable Price, Fast Delivery.
Product Details:
Payment & Shipping Terms:
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VIN, EN, UVLO To GND -: | -0.3V To 45V | VIN To VCC, PGATE: | -0.3V To 7V |
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VIN To PGATE: | -2.8V For 100ns | VIN To CSP, CSN: | -0.3V To 0.3V |
COFF To GND: | -0.3V To 4V | ||
Highlight: | diode rectifier circuit,bridge rectifier circuit |
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.
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