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Texas Instruments TPS92515HVDGQR
- Part No.:
- TPS92515HVDGQR
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS92515HVDGQR.pdf
- Description:
- IC LED DRV RGLTR PWM 2A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,947
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Product details
Overview
TPS92515HVDGQR from Texas Instruments is a high-voltage buck LED driver IC with integrated 290-mΩ N-channel MOSFET, designed for constant-current LED regulation up to 2 A in automotive and industrial lighting. It features high-side current sensing (240 mV typical threshold), shunt FET PWM dimming (10,000:1 range), and operates from 5.5 V to 65 V input - supporting DRL, headlamp matrix, and machine vision illumination.
For engineers reviewing the TPS92515HVDGQR datasheet, TPS92515HVDGQR pinout, TPS92515HVDGQR application, or TPS92515HVDGQR equivalent, key selection criteria include its HVSSOP-10 package with exposed thermal pad, constant off-time control architecture, integrated thermal shutdown (175°C), and compatibility with high-contrast shunt dimming topologies requiring precise average current stability across wide VIN and VLED ranges.
Technical Context
The TPS92515HVDGQR implements a peak-current-controlled, constant off-time (COT) buck regulator with no external loop compensation required. Its high-side current sense comparator uses a 10:1 resistive divider network referenced to the IADJ pin to set the 220–251 mV adjustable threshold, enabling analog dimming while maintaining low sense loss.
OFF-time is dynamically derived from VOUT via the COFF pin to sustain constant inductor ripple - critical for linear shunt-FET dimming - and defaults to a 230 µs maximum if VOUT collapses during output shorting. The integrated N-channel FET supports continuous 2-A average LED current with cycle-by-cycle current limiting and thermal protection at 175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 65 V - enables direct battery connection in 48-V industrial and 24-V/12-V automotive systems without pre-regulation |
| Max Output Current | 2 A average - supports high-brightness LED strings in headlamps and machine vision illuminators |
| Current Sense Threshold | 240 mV (typ) - low-offset high-side sensing minimizes power loss and improves accuracy at low RSENSE |
| Shunt PWM Dimming Ratio | 10,000:1 - enables ultra-fine brightness control in adaptive front-lighting systems (AFS) |
| Thermal Shutdown | 175°C with 10°C hysteresis - protects against sustained overloads in enclosed luminaires |
| FET RDS(on) | 290 mΩ (typ) at 25°C - reduces conduction loss and simplifies thermal design in compact HVSSOP-10 package |
| Package | HVSSOP-10 with exposed thermal pad - provides 5.3°C/W junction-to-case (bottom) thermal resistance for high-power density layouts |
Pinout & Package
HVSSOP-10 package (3 mm × 3 mm) with exposed thermal pad connected to GND for optimal heat dissipation. Pin numbering follows standard top-view orientation with Pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COFF | Off-time timing input | Resistor-capacitor network sets dynamic OFF-time proportional to VOUT - ensures constant inductor ripple for linear dimming |
| CSN | High-side current sense negative | Kelvin-connected to low-side of sense resistor - enables accurate high-side sensing without ground path interference |
| DRN | Internal FET drain | Internally tied to CSN node - forms high-side current sense path with VIN and CSN; not externally accessible |
| GND | Power and signal reference | Common return for VCC regulator, logic, and thermal pad - must be low-impedance plane for stability and EMI control |
| IADJ | Analog current setpoint input | Adjusts peak current threshold via 10:1 divider - sets LED current from 0 to 2 A without changing RSENSE |
| PWM | Digital dimming enable | Accepts 0–5 V logic signal - modulates output current at user-defined frequency; internal 1-V threshold with 50–150 mV hysteresis |
| SW | Switch node | Connection to inductor and external bootstrap diode - carries high di/dt switching current; requires tight layout and low-inductance routing |
| VCC | Integrated 5-V regulator output | Supplies internal circuitry and BOOT capacitor - requires ≥1 µF ceramic decoupling to GND near pin |
| VIN | Input voltage and sense positive | Primary power input and high-side current sense reference - rated to 65 V absolute max; UVLO at 4.9 V falling |
| BOOT | High-side gate drive supply | Charged via external diode from VCC - supplies gate drive for internal N-FET; UVLO disables drive below 2.8 V |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 290-mΩ N-channel FET | Eliminates external switch and associated gate-drive complexity - reduces BOM count and PCB area in space-constrained LED modules |
| 10,000:1 shunt PWM dimming | Enables pixel-level brightness control in switched-matrix AFS headlamps without external dimming FETs or controllers |
| Constant off-time (COT) control | Delivers fast transient response (<1 µs) and inherent cycle-by-cycle current limiting - no compensation network required |
| High-side current sense with 240-mV threshold | Supports low-value, high-precision sense resistors (e.g., 0.1 Ω) - minimizes power loss and thermal drift impact |
| Thermally enhanced HVSSOP-10 | Exposes die pad to PCB ground plane - achieves 5.3°C/W junction-to-case (bottom) resistance for reliable 2-A operation at 125°C ambient |
| Automotive-grade thermal shutdown | Triggers at 175°C with 10°C hysteresis - prevents latch-up during thermal overload while allowing safe recovery |
Applications
| Automotive Headlamp Matrix | Industrial Machine Vision Illumination |
|---|---|
Use Scenario: Adaptive front-lighting system (AFS) with individually addressable LED segments for glare-free high-beam and dynamic cornering light. IC Role / Device Role / Timing Role: Constant-current buck controller regulating each LED string; synchronizes shunt-FET dimming with camera frame rate for strobed illumination. Use Value: Maintains 2-A steady-state current with <±3% variation across 12–65 V input transients, enabling robust operation during cold-crank and load-dump events. |
Use Scenario: High-intensity, flicker-free illumination for high-speed inspection cameras in factory automation lines. IC Role / Device Role / Timing Role: Primary LED driver delivering stable 1.5-A output; leverages COT architecture to reject 50/60 Hz line ripple and suppress EMI in noise-sensitive imaging environments. Use Value: Achieves <1% current ripple at 500 kHz switching - eliminates banding artifacts in 100+ fps image capture without post-processing correction. |
| Emergency & Safety Lighting | Medical Endoscopic Light Source |
Use Scenario: UL 924-compliant exit sign with dual-input capability (mains + battery backup) and programmable dimming profiles. IC Role / Device Role / Timing Role: Single-chip LED driver accepting 12–65 V input; uses IADJ pin for analog dimming during standby and PWM for emergency strobe mode. Use Value: Supports seamless transition between AC and DC sources with no reconfiguration - maintains ±2% current accuracy across 40°C to 85°C ambient range. |
Use Scenario: Compact, thermally isolated light engine for rigid/flexible endoscopes requiring precise color rendering and zero audible noise. IC Role / Device Role / Timing Role: Low-noise constant-current source driving white + RGB LEDs; utilizes high-side sensing to avoid ground-loop interference with imaging sensors. Use Value: Delivers <0.1% RMS current noise and <100 ns PWM edge jitter - preserves spectral fidelity and enables real-time white-balance calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3409HV-Q1 | External P-channel FET required; 75-V max input; constant off-time but no integrated switch | Requires external high-side switch and gate driver - increases board area and component count | Choose when >65 V input or AEC-Q100 Grade 0 operation is needed; not drop-in compatible due to topology and pinout differences |
| TPS92692QPWPRQ1 | Current-mode boost/buck-boost controller; 65-V input; no integrated FET; supports I²C programming | Requires external power stage and sense amplifier - adds design complexity but enables digital diagnostics | Prefer when programmable fault reporting, multi-string synchronization, or flexible topology (boost/buck-boost) is required; not pin-compatible |
Compared with LM3409HV-Q1 and TPS92692QPWPRQ1, the TPS92515HVDGQR delivers higher integration (integrated N-FET), simpler layout (no external gate drive), and superior dimming linearity (10,000:1 shunt PWM) - making it optimal for cost-sensitive, space-constrained automotive and industrial LED modules where fixed-buck topology suffices.
Availability
TPS92515HVDGQR is available at Aetrix Electronics and suitable for automotive headlamp systems, industrial machine vision illuminators, and medical endoscopic light engines requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for TPS92515HVDGQR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies with over 90 years of innovation in industrial, automotive, and consumer electronics.
The TPS92515HVDGQR belongs to TI's high-voltage LED driver product line, engineered specifically for efficient, compact, and thermally robust constant-current regulation in demanding lighting applications - including AFS, DRL, and high-accuracy machine vision illumination.
FAQ
What is the maximum input voltage rating for the TPS92515HVDGQR?
The TPS92515HVDGQR has an absolute maximum input voltage (VIN) rating of 65 V, with recommended operating range from 5.5 V to 65 V. It sustains operation down to 5.15 V after startup, making it suitable for 48-V industrial rails and automotive battery systems with cold-crank tolerance. This rating is confirmed in Section 7.1 Absolute Maximum Ratings of the SLUSBZ6A datasheet.
Does the TPS92515HVDGQR support both analog and PWM dimming simultaneously?
Yes, the TPS92515HVDGQR supports concurrent analog and PWM dimming: analog dimming is controlled via the IADJ pin (adjusting peak current threshold), while PWM dimming is applied to the PWM pin (modulating duty cycle of the regulated current). This dual-mode capability enables fine-grained brightness control in applications like adaptive headlamps, where analog sets baseline current and PWM provides dynamic modulation.
How does the COFF pin function in the TPS92515HVDGQR?
The COFF pin sets the converter's off-time by charging an external capacitor through a resistor connected to VOUT. When the COFF voltage reaches ~1.0 V, the off-time ends and the next switching cycle begins. This VOUT-referenced timing ensures constant inductor ripple - essential for linear shunt-FET dimming. During output shorting (e.g., shunt dimming), VCC can be used instead to maintain ripple linearity, as detailed in Section 8.3.4 of the datasheet.
What thermal protection features does the TPS92515HVDGQR include?
The TPS92515HVDGQR integrates thermal shutdown that activates at 175°C junction temperature with 10°C hysteresis, preventing permanent damage during sustained overload. Its HVSSOP-10 package includes an exposed thermal pad connected to GND, achieving 5.3°C/W junction-to-case (bottom) resistance. Thermal performance is validated per JEDEC JESD51 standards and documented in Section 7.4 Thermal Information.
Is the TPS92515HVDGQR AEC-Q100 qualified?
No - the TPS92515HVDGQR is the commercial-grade variant. AEC-Q100 Grade 1 qualification applies only to the TPS92515HV-Q1 (same HV input range but automotive-qualified). The TPS92515HVDGQR shares identical electrical specifications and pinout with the Q1 version but lacks automotive-specific stress testing and documentation. For automotive production, TPS92515HV-Q1 is the compliant option.
TPS92515HVDGQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 5.5V
- Voltage - Supply (Max):
- 65V
- Voltage - Output:
- -
- Current - Output / Channel:
- 2A
- Frequency:
- -
- Dimming:
- Analog, PWM
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-HVSSOP
TPS92515HVDGQR FAQ
1.How can I place an order for TPS92515HVDGQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92515HVDGQR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS92515HVDGQR reliable?
The price and inventory of TPS92515HVDGQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92515HVDGQR is usually 5 days.
3.What payment methods are accepted for TPS92515HVDGQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92515HVDGQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92515HVDGQR?
TPS92515HVDGQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92515HVDGQR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS92515HVDGQR?
For technical support, including TPS92515HVDGQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92515HVDGQR requirements.
6.How does Aetrix verify that TPS92515HVDGQR is sourced from the original manufacturer or authorized distributors?
All TPS92515HVDGQR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS92515HVDGQR meets industry standards.
7.What is the process for return or replacement of TPS92515HVDGQR?
All TPS92515HVDGQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS92515HVDGQR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS92515HVDGQR part is unused and in its original packaging.
Return procedure for TPS92515HVDGQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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