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LM3409HVMY
Features
• LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
• 2-Ω, 1-A Peak MOSFET Gate Drive
• VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
• VIN Range: 6 V to 75 V (LM3409HV, LM3409HV Q1)
• Differential, High-Side Current Sense
• Cycle-by-Cycle Current Limit
• NoControl Loop Compensation Required
• 10,000:1 PWM Dimming Range
• 250:1 Analog Dimming Range
• Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
• Low-Power Shutdown and Thermal Shutdown
• Thermally Enhanced 10-Pin, HVSSOP Package
Applications
• LEDDriver
• Constant Current Source
• Automotive Lighting
• General Illumination
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.
Information
| Category | | |
| Manufacturer | Texas Instruments | |
| Series | - | |
| Packaging | Tape & Reel (TR) Cut Tape (CT ) Digi-Reel | |
| 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 | -40°C ~ 125°C (TJ) | |
| Grade | Automotive | |
| Mounting Type | Surface Mount | |
| Package / Case | 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) | |
| Supplier Device Package | 10-HVSSOP | |
| Base Product Number |
Drawing
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