Overview
The LM3409QHVMYX/NOPB is a high-voltage P-channel MOSFET (PFET) controller designed for step-down (buck) current regulators, particularly suited for high-power LED drivers. This device is part of the LM3409 family from Texas Instruments and is AEC-Q100 Grade 1 qualified, making it suitable for automotive applications. It features a wide input voltage range, high-side differential current sensing, and a thermally enhanced 10-pin HVSSOP package. The LM3409QHVMYX/NOPB is ideal for use as a constant current source for driving LEDs with forward currents up to 5 A.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 10-Pin HVSSOP (DGQ) |
| Pins | 10 |
| Operating Temperature Range | -40°C to 125°C |
| Input Voltage Range | 6 V to 75 V |
| Junction Temperature Range | -40°C to 125°C |
| Storage Temperature Range | -65°C to 125°C |
| ESD Rating | 2 kV (Human Body Model) |
| Peak MOSFET Gate Drive | 2-Ω, 1-A Peak |
| Current Sense | Differential, High-Side |
| Dimming Range | 10,000:1 PWM, 250:1 Analog |
| Shutdown | Low-Power and Thermal Shutdown |
Key Features
- AEC-Q100 Grade 1 Qualified for automotive applications
- Wide input voltage range: 6 V to 75 V
- 2-Ω, 1-A Peak MOSFET Gate Drive
- Differential, High-Side Current Sense with low adjustable threshold voltage
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- 10,000:1 PWM Dimming Range and 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
- LED Driver
- Constant Current Source
- Automotive Lighting
- General Illumination
Q & A
- What is the input voltage range of the LM3409QHVMYX/NOPB? The input voltage range is 6 V to 75 V.
- What type of package does the LM3409QHVMYX/NOPB come in? It comes in a 10-Pin HVSSOP (DGQ) package.
- Is the LM3409QHVMYX/NOPB suitable for automotive applications? Yes, it is AEC-Q100 Grade 1 qualified.
- What is the maximum forward current the LM3409QHVMYX/NOPB can handle for LED drivers? It can handle forward currents up to 5 A.
- Does the LM3409QHVMYX/NOPB require external control loop compensation? No, it does not require external control loop compensation.
- What are the dimming capabilities of the LM3409QHVMYX/NOPB? It supports 10,000:1 PWM dimming and 250:1 analog dimming.
- What kind of shutdown features does the LM3409QHVMYX/NOPB have? It has low-power shutdown and thermal shutdown features.
- What is the operating temperature range of the LM3409QHVMYX/NOPB? The operating temperature range is -40°C to 125°C.
- Does the LM3409QHVMYX/NOPB support all-ceramic output capacitors? Yes, it supports all-ceramic output capacitors and capacitor-less outputs.
- What is the ESD rating of the LM3409QHVMYX/NOPB? The ESD rating is 2 kV (Human Body Model).
