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Texas Instruments TPS92515HVQDGQRQ1
- Part No.:
- TPS92515HVQDGQRQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS92515HVQDGQRQ1.pdf
- Description:
- IC LED DRV RGLTR PWM 2A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,547
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Product details
Overview
TPS92515HVQDGQRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive buck LED driver with integrated 290-mΩ N-channel FET, high-side current sense, and shunt FET PWM dimming capability. It delivers up to 2 A constant average LED current across 5.5 V–65 V input range and supports 10,000:1 shunt PWM dimming for adaptive front lighting systems.
For engineers reviewing the TPS92515HVQDGQRQ1 datasheet, TPS92515HVQDGQRQ1 pinout, TPS92515HVQDGQRQ1 application, or TPS92515HVQDGQRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specs, and real-world automotive lighting implementation guidance - all specific to the Q1-qualified HV variant in HVSSOP-10 with PowerPAD.
Technical Context
The TPS92515HVQDGQRQ1 implements constant off-time (COT), peak-current-controlled buck regulation with inherent cycle-by-cycle current limiting and no loop compensation required. Its high-side current sense comparator features 240 mV typical threshold with ±16 mV variation over temperature and 75–130 ns falling delay.
It uses a dual-source OFF-timer architecture: COFF pin voltage ramps from VOUT during normal operation to maintain constant inductor ripple, but switches to VCC-derived ramping during shunt-FET dimming to preserve linearity when output is shorted - critical for matrix LED headlamp control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 65 V - supports 12 V/24 V/48 V automotive battery rails plus load dump transients up to 65 V. |
| Max Output Current | 2 A average - sustained at junction temperatures ≤150°C with proper thermal management via HVSSOP PowerPAD. |
| Integrated FET RDS(on) | 290 mΩ typ at 25°C - enables high-efficiency operation without external switch; increases to 600 mΩ at 150°C. |
| Shunt PWM Dimming Ratio | 10,000:1 - achieves precise low-duty-cycle brightness control for dynamic beam shaping in AFS headlamps. |
| Thermal Shutdown Threshold | 175°C with 10°C hysteresis - protects device during overload or poor heatsinking; triggers automatic recovery after cooldown. |
| Current Sense Threshold | 240 mV typical (VIADJ = VCC) - low offset enables accurate current regulation with milliohm-level sense resistors. |
| Operating Junction Temp | –40°C to +150°C - meets automotive Grade 1 requirements for under-hood and headlamp module placement. |
Pinout & Package
TPS92515HVQDGQRQ1 is housed in a thermally enhanced 10-pin HVSSOP package (3 mm × 3 mm) with exposed thermal pad connected to GND for optimal PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COFF | OFF-time timer input | Resistor-capacitor network sets off-time; dual-source (VOUT or VCC) ensures linear shunt dimming during output shorting. |
| 2 VCC | 5-V regulated output | Internal LDO supplies gate drive and logic; requires ≥1 µF ceramic decoupling to GND for stability. |
| 3 GND | Power and signal reference | Common return for all circuits; must be low-impedance connection to thermal pad for thermal performance. |
| 4 BOOT | High-side gate driver supply | Bootstrap capacitor between BOOT and SW powers internal N-FET driver; diode from VCC to BOOT required. |
| 5 SW | Switch node | Drain of internal N-FET; connects to inductor; high dv/dt node requiring tight layout and ground plane clearance. |
| 6 DRN | Internal FET drain | Internally tied to CSN; used only for high-side sensing - not externally accessible as separate terminal. |
| 7 CSN | Current sense negative input | Kelvin connection point for sense resistor; low bias current (±5 µA) minimizes measurement error. |
| 8 VIN | Input voltage & sense positive | Primary power input and high-side current sense reference; UVLO threshold 4.90 V (±0.25 V). |
| 9 PWM | PWM dimming enable/control | Active-low digital input; 1.0 V threshold with 100 mV hysteresis; pulls down SW when asserted. |
| 10 IADJ | Analog current setpoint | Voltage-adjustable current limit (0.1–2.2 V); 10:1 divider ratio enables precise 200 mA–2 A programming. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive ambient temperatures from –40°C to +125°C and full lifetime reliability in safety-critical lighting. |
| Integrated 290-mΩ N-channel FET | Eliminates external switch, reduces BOM count, and improves efficiency by minimizing conduction losses in compact layouts. |
| High-side current sensing | Enables true ground-referenced LED cathode configuration - essential for matrix LED switching and fault isolation. |
| 10,000:1 shunt PWM dimming | Supports ultra-fine brightness resolution in adaptive driving beam (ADB) systems without external dimming FET drivers. |
| Constant off-time control | Delivers fast transient response (<1 µs) and stable operation across wide input/output voltage ranges without compensation networks. |
| Thermally enhanced HVSSOP-10 | PowerPAD bottom thermal pad reduces RθJA to 56.2°C/W - enables 2 A operation in space-constrained headlamp modules. |
Applications
| Automotive Adaptive Front Lighting | Industrial Machine Vision Illumination |
|---|---|
Use Scenario: Dynamic beam shaping in LED matrix headlamps using per-segment shunt-FET dimming. IC Role / Device Role / Timing Role: Primary buck regulator and current controller for individual LED strings; synchronizes OFF-time ramping with shunt gate timing. Use Value: Maintains linear dimming response across full 10,000:1 range even during rapid on/off transitions - enabling pixel-level glare-free illumination. |
Use Scenario: High-intensity strobed lighting for high-speed camera capture in factory automation inspection. IC Role / Device Role / Timing Role: Constant-current source with microsecond-level PWM response for precise exposure synchronization. Use Value: Delivers 2 A pulsed current with <130 ns CSN-to-SW delay - eliminates motion blur in 10 kfps imaging applications. |
| Automotive Rear Combination Lamp | Medical Endoscopic Light Source |
Use Scenario: Integrated DRL, brake, turn, and reverse lighting in single-module design with shared thermal path. IC Role / Device Role / Timing Role: Multi-mode LED driver supporting analog dimming for DRL intensity and PWM for flash signaling. Use Value: Single IC replaces multiple drivers; 200:1 analog + 1000:1 PWM dimming enables seamless transition between modes without visible stepping. |
Use Scenario: Compact, low-EMI white LED light engine for rigid/flexible endoscopes requiring stable color temperature. IC Role / Device Role / Timing Role: Precision current regulator with <±1% steady-state accuracy enabled by low-offset 240 mV sense threshold. Use Value: Minimizes thermal drift-induced color shift via integrated thermal shutdown (175°C) and junction-temp-stable VCST performance. |
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; 75 V max input; constant off-time control; no integrated current sense amplifier. | Requires external high-side sense and gate driver; better suited for higher-voltage (>65 V) or higher-power (>2 A) designs with discrete FET optimization. | Select when system requires >65 V operation or discrete FET selection for thermal/power trade-off tuning. |
| TPS92692QPWPRQ1 | Two-channel, current-sense amplifier-based controller; supports 0–100% analog dimming; no integrated FET; 65 V max input. | Designed for multi-string independent control; lacks shunt-FET dimming support; requires external MOSFETs and sense amps. | Select for dual-string AFS systems needing independent current regulation per channel, not single-string high-current buck conversion. |
Compared with LM3409HV-Q1 and TPS92692QPWPRQ1, the TPS92515HVQDGQRQ1 offers the only monolithic 2 A, 65 V, shunt-PWM-capable solution in HVSSOP-10 - delivering lowest component count and smallest footprint for single-string automotive LED headlamps.
Availability
TPS92515HVQDGQRQ1 is available at Aetrix Electronics and suitable for automotive lighting, industrial machine vision, medical endoscopy, and heavy-equipment signaling requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for TPS92515HVQDGQRQ1 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 company specializing in analog, embedded processing, and power management technologies with deep expertise in automotive-grade reliability and functional safety.
The TPS92515HV-Q1 product line delivers monolithic buck LED drivers optimized for AEC-Q100 Grade 1 automotive lighting - prioritizing high integration, shunt-dimming linearity, and thermal robustness in compact packages.
FAQ
What is the maximum input voltage supported by the TPS92515HVQDGQRQ1?
The TPS92515HVQDGQRQ1 supports a maximum input voltage of 65 V, making it suitable for 48 V automotive architectures and transient conditions including ISO 7637-2 load dump events. This rating is absolute maximum - recommended operating range is 5.5 V to 65 V, with guaranteed operation down to 5.15 V after startup. The TPS92515HVQDGQRQ1 maintains regulation and protection features across this full range.
How does the TPS92515HVQDGQRQ1 achieve 10,000:1 shunt PWM dimming?
The TPS92515HVQDGQRQ1 achieves 10,000:1 shunt PWM dimming through its dual-source OFF-timer architecture: during normal operation, COFF ramps from VOUT to maintain constant inductor ripple; during shunt-FET dimming, it switches to VCC-derived ramping to preserve linearity when the LED string is shorted. This ensures consistent peak-to-peak ripple and predictable average current across the entire dimming range - a capability unique to the TPS92515HVQDGQRQ1 among monolithic 2 A buck LED drivers.
Is the TPS92515HVQDGQRQ1 pin-compatible with non-Q1 or non-HV variants?
No, the TPS92515HVQDGQRQ1 is not pin-compatible with TPS92515 or TPS92515-Q1 due to different absolute maximum ratings and internal UVLO thresholds. While all share the HVSSOP-10 package and identical pinout numbering, the HV-Q1 variant has extended 65 V input rating and automotive-grade thermal/ESD specifications. Substituting non-HV parts risks overvoltage failure; substituting non-Q1 parts voids AEC-Q100 compliance in automotive applications.
What thermal management is required for full 2 A operation of the TPS92515HVQDGQRQ1?
For continuous 2 A operation, the TPS92515HVQDGQRQ1 requires PCB-level thermal management: the exposed thermal pad must be soldered to a minimum 100 mm² copper pour connected to internal ground planes via ≥6 thermal vias (0.3 mm diameter). With this layout, junction temperature remains ≤150°C at +85°C ambient. Thermal shutdown activates at 175°C with 10°C hysteresis, providing safe margin against thermal runaway.
Can the TPS92515HVQDGQRQ1 operate in dropout condition, and how does it affect LED current accuracy?
Yes, the TPS92515HVQDGQRQ1 operates safely in dropout (VIN ≈ VLED), where inductor ripple ΔIL-PP decreases significantly. Because average current ILED = ILPEAK – (ΔIL-PP/2), reduced ripple causes ILED to rise - potentially increasing output current by up to 15% near dropout. To maintain accuracy, designers should size the inductor to keep ΔIL-PP ≥10% of ILED across the full input range, as specified in the TPS92515HVQDGQRQ1 design guidelines.
TPS92515HVQDGQRQ1 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
TPS92515HVQDGQRQ1 FAQ
1.How can I place an order for TPS92515HVQDGQRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92515HVQDGQRQ1 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 TPS92515HVQDGQRQ1 reliable?
The price and inventory of TPS92515HVQDGQRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92515HVQDGQRQ1 is usually 5 days.
3.What payment methods are accepted for TPS92515HVQDGQRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92515HVQDGQRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92515HVQDGQRQ1?
TPS92515HVQDGQRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92515HVQDGQRQ1 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 TPS92515HVQDGQRQ1?
For technical support, including TPS92515HVQDGQRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92515HVQDGQRQ1 requirements.
6.How does Aetrix verify that TPS92515HVQDGQRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS92515HVQDGQRQ1 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 TPS92515HVQDGQRQ1 meets industry standards.
7.What is the process for return or replacement of TPS92515HVQDGQRQ1?
All TPS92515HVQDGQRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS92515HVQDGQRQ1, 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 TPS92515HVQDGQRQ1 part is unused and in its original packaging.
Return procedure for TPS92515HVQDGQRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS92515HVQDGQRQ1 Tags
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BCR402RE6327HTSA1
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BCR430UXTSA2
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BCR420UE6433HTMA1
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
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BCR420UFD-7
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BCR421UFD-7
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