Overview
The TPS92515QDGQRQ1 is a compact monolithic switching regulator designed by Texas Instruments for high-brightness LED lighting applications. This device integrates a low resistance N-Channel MOSFET and is optimized for efficiency, high bandwidth, and both PWM and analog dimming. It operates using a peak-current, constant OFF-time control method, ensuring fast transient response and simplicity in design without the need for loop compensation. The regulator is available in various packages, including the thermally enhanced HVSSOP package, and offers integrated thermal protection and other advanced features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 5.5 to 42 V (TPS92515x), 5.5 to 65 V (TPS92515HVx) | V |
| Internal N-Channel FET Resistance | 290 mΩ (typ) | mΩ |
| Output Current | Up to 2 A | A |
| Operating Ambient Temperature | -40 to 125 °C | °C |
| Junction Temperature | -40 to 150 °C | °C |
| Thermal Shutdown Temperature | 175 °C | °C |
| Package Type | 10-pin HVSSOP | |
| Dimming Methods | 10,000:1 Shunt PWM, 1000:1 PWM, 200:1 Analog |
Key Features
- AEC-Q100 Grade 1 Qualified
- Integrated 290-mΩ (typ) Internal N-Channel FET
- Low Offset High-side Peak Current Comparator
- Constant Average Current, up to 2 A
- Inherent Cycle-by-Cycle Current Limit
- Multiple Dimming Methods: 10,000:1 Shunt PWM, 1000:1 PWM, 200:1 Analog
- Simple Constant Off-time Control with No Loop Compensation
- Fast Transient Response
- Thermally Enhanced HVSSOP Package
- Integrated Thermal Protection
Applications
- Automotive Lighting: LED Switched Matrix AFS Headlamps, DRL, High/Low Beam, Fog, Rear, Turn Signal, Side Marker, Aftermarket
- Industrial Lighting: Factory Automation, Time of Flight (TOF), Appliances, Retail Illumination, Machine Vision and Inspection, Emergency, Exit and/or Safety Lighting, Medical Lighting, Stage and Area Lighting
- Agricultural, Marine, and Heavy Industry Lighting
- High Contrast Shunt FET Dimming
Q & A
- What is the input voltage range of the TPS92515QDGQRQ1?
The input voltage range is 5.5 V to 42 V for the TPS92515x and 5.5 V to 65 V for the TPS92515HVx. - What is the maximum output current of the TPS92515QDGQRQ1?
The maximum output current is up to 2 A. - What are the dimming methods supported by the TPS92515QDGQRQ1?
The device supports 10,000:1 Shunt PWM, 1000:1 PWM, and 200:1 Analog dimming methods. - Is the TPS92515QDGQRQ1 AEC-Q100 qualified?
Yes, the TPS92515QDGQRQ1 is AEC-Q100 Grade 1 Qualified. - What is the thermal shutdown temperature of the TPS92515QDGQRQ1?
The thermal shutdown temperature is 175 °C. - What package type is the TPS92515QDGQRQ1 available in?
The device is available in a 10-pin HVSSOP package. - Does the TPS92515QDGQRQ1 require loop compensation?
No, the device operates with simple constant off-time control and does not require loop compensation. - What is the typical resistance of the internal N-Channel FET?
The typical resistance of the internal N-Channel FET is 290 mΩ. - What are some of the key applications of the TPS92515QDGQRQ1?
Key applications include automotive lighting, industrial lighting, agricultural, marine, and heavy industry lighting, and high contrast shunt FET dimming. - How does the TPS92515QDGQRQ1 maintain thermal stability?
The device features integrated thermal protection and a thermally enhanced HVSSOP package.
