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LM3409HVMY
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Features andnbsp;
andbull; LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
andbull; 2-Ω, 1-A Peak MOSFET Gate Drive
andbull; VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
andbull; VIN Range: 6 V to 75 V (LM3409HV, LM3409HV Q1)
andbull; Differential, High-Side Current Sense
andbull; Cycle-by-Cycle Current Limit
andbull; NoControl Loop Compensation Required
andbull; 10,000:1 PWM Dimming Range
andbull; 250:1 Analog Dimming Range
andbull; Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
andbull; Low-Power Shutdown and Thermal Shutdown
andbull; Thermally Enhanced 10-Pin, HVSSOP Package
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Applications
andbull; LEDDriver
andbull; Constant Current Source
andbull; Automotive Lighting
andbull; General Illumination
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Description
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 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 and fast output enable/disable function and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currents up to 5 A are easily achievable.
The LM3409 devices use 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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Information
Category | ||
Manufacturer | Texas Instruments | |
Series | - | |
Packaging | Tape andamp; Reel (TR)andnbsp; Cut Tape (CTandnbsp;) Digi-Reelandnbsp; | |
Part Status | Active | |
Type | DC DC Controller | |
Topology | Step-Down (Buck) | |
Internal Switch(s) | No | |
Number of Outputs | 1 | |
Voltage - Supply (Min) | 6V | |
Voltage - Supply (Max) | 75V | |
Voltage - Output | - | |
Current - Output / Channel | - | |
Frequency | - | |
Dimming | Analog, PWM | |
Applications | - | |
Operating Temperature | -40anddeg;C ~ 125anddeg;C (TJ) | |
Grade | Automotive | |
Mounting Type | Surface Mount | |
Package / Case | 10-PowerTFSOP, 10-MSOP (0.118andquot;, 3.00mm Width) | |
Supplier Device Package | 10-HVSSOP | |
Base Product Number |
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