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Texas Instruments TPS92515HVQDGQTQ1
- Part No.:
- TPS92515HVQDGQTQ1
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS92515HVQDGQTQ1.pdf
- Description:
- IC LED DRV RGLTR PWM 2A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:553
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Product details
Overview
TPS92515HVQDGQTQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive buck LED driver with integrated 290-mΩ N-channel FET, high-side current sensing, and shunt FET PWM dimming capability. It delivers up to 2 A constant average LED current across 5.5 V–65 V input range, supports 10,000:1 shunt PWM dimming, and operates in continuous or discontinuous conduction mode without loop compensation - deployed in adaptive front lighting systems (AFS) and DRL modules.
For engineers reviewing the TPS92515HVQDGQTQ1 datasheet, TPS92515HVQDGQTQ1 pinout, TPS92515HVQDGQTQ1 application, or TPS92515HVQDGQTQ1 equivalent, this page provides verified pin functions, thermal-aware package details, confirmed dimming performance metrics, and validated automotive-grade alternatives for safety-critical LED driver design.
Technical Context
The TPS92515HVQDGQTQ1 uses constant off-time (COT), peak-current control with a low-offset high-side comparator for precise current regulation. Its OFF-time is dynamically derived from VOUT to maintain constant inductor ripple - enabling linear shunt-FET dimming across full duty cycle range.
It integrates a thermally monitored 290-mΩ N-channel MOSFET (RDS(on) typ at 25°C, 600 mΩ max at 150°C), supports VIN down to 5.15 V after startup, and features built-in thermal shutdown at 175°C with 10°C hysteresis - all in a 10-pin HVSSOP package with exposed thermal pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 65 V - supports 48 V industrial and 60 V automotive battery transients without external protection. |
| Max Output Current | 2 A average - sustained under thermal management; limited by junction temperature (TJ ≤ 150°C). |
| Current Sense Threshold | 220–251 mV (adjustable via IADJ) - enables analog dimming over 200:1 range with <±5 µA input bias. |
| Shunt PWM Dimming Ratio | 10,000:1 - achieved using external shunt FET controlled by PWM pin, independent of analog setting. |
| Thermal Resistance | RθJC(bot) = 5.3 °C/W - low junction-to-board resistance enabled by exposed thermal pad tied to GND. |
| Startup UVLO | VIN UVLO falling threshold = 4.65–5.15 V - ensures reliable start-up after cold cranking in automotive environments. |
| Switching Architecture | Constant off-time, peak-current mode - eliminates need for compensation network and delivers fast transient response. |
Pinout & Package
TPS92515HVQDGQTQ1 is housed in a thermally enhanced 10-pin HVSSOP (DGQ) package measuring 3 mm × 3 mm with an exposed thermal pad connected to GND for optimal heat dissipation in high-power LED applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COFF | OFF-time timing input | Resistor-capacitor network sets dynamic OFF-time; voltage ramp derived from VOUT ensures constant inductor ripple during dimming. |
| CSN | High-side current sense negative | Kelvin-connected to sense resistor; enables accurate high-side sensing with ±5 µA input bias and 75–130 ns propagation delay. |
| DRN | Internal FET drain | Internally connected to CSN node; must be routed with low-inductance path to minimize switching noise in current measurement. |
| GND | Power and signal ground | Reference for all analog circuitry; thermal pad must be soldered to large copper area for RθJC(bot) = 5.3 °C/W performance. |
| IADJ | Analog current setpoint input | Adjusts peak current threshold from 211.5 mV to 251 mV; 0.1 V/V gain enables precise analog dimming control. |
| PWM | Digital dimming enable | Accepts 0.95–1.05 V logic threshold; controls shunt-FET dimming with 75–170 ns propagation delay relative to SW edge. |
| SW | Internal FET source output | Switching node connected to inductor; requires low-ESR ceramic capacitor and tight layout to minimize EMI and ringing. |
| VCC | 5-V internal regulator output | Supplies gate drive and internal logic; requires ≥1 µF ceramic decoupling; drops out at 0.1–0.2 V under 500 µA load. |
| VIN | Input voltage and current sense positive | Primary power input and high-side sense reference; withstands 65 V absolute max; UVLO hysteresis = 150–225 mV. |
| BOOT | High-side gate driver supply | Charged via diode from VCC to SW; requires ceramic capacitor (≥100 nF) between BOOT and SW for robust high-side FET drive. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for −40°C to +125°C ambient operation - validated for automotive headlamp and DRL use cases. |
| Integrated 290-mΩ N-channel FET | Reduces BOM count and PCB area; RDS(on) remains ≤600 mΩ at 150°C junction temperature for stable efficiency. |
| 10,000:1 shunt PWM dimming | Enables ultra-fine brightness control in matrix LED systems without flicker or color shift - no external dimming controller required. |
| No loop compensation needed | Constant off-time architecture eliminates external compensation components - simplifies design and improves reliability. |
| Thermally enhanced HVSSOP | Exposed thermal pad lowers RθJC(bot) to 5.3 °C/W - enables 2 A operation in compact 3 mm × 3 mm footprint. |
Applications
| Adaptive Front Lighting (AFS) | Daytime Running Lights (DRL) |
|---|---|
Use Scenario: Dynamic beam shaping using switched LED matrix with individual zone control. IC Role / Device Role / Timing Role: Primary buck regulator and shunt-FET dimming controller per LED string; manages rapid on/off transitions synchronized to camera-based scene detection. Use Value: Enables 10,000:1 dimming resolution per zone while maintaining constant current accuracy across 5.5–65 V input range during engine cranking. |
Use Scenario: High-brightness, always-on LED illumination meeting ECE R87 photometric requirements. IC Role / Device Role / Timing Role: Constant-current LED driver with analog dimming for ambient light compensation and PWM dimming for dynamic intensity modulation. Use Value: Delivers stable 2 A output with <±3% current accuracy over temperature, supporting long-life thermal design in sealed headlamp housings. |
| Rear Combination Lamps | Automotive Turn Signal Modules |
Use Scenario: Integrated stop/tail/turn functions with sequential turn indication and brake flash patterns. IC Role / Device Role / Timing Role: High-voltage buck controller driving multiple parallel LED strings; PWM pin used for pattern sequencing via microcontroller. Use Value: Supports 65 V max input for 48 V vehicle architectures; inherent cycle-by-cycle current limit prevents LED damage during short-circuit events. |
Use Scenario: Fast-response amber LED turn indicators with hyper-flash detection and fail-safe reporting. IC Role / Device Role / Timing Role: LED current regulator with programmable analog setpoint and PWM-triggered strobe mode. Use Value: Achieves <100 ns SW edge delay from PWM input, enabling precise 1–4 Hz flash timing without external timing ICs. |
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 switch. | Requires external high-side switch and gate driver; better suited for >3 A or >75 V applications. | Select when higher input voltage margin or discrete FET selection is required; not drop-in due to topology and pinout differences. |
| TPS92692QPWPRQ1 | Two-channel, current-sense amplifier-based controller; 65 V input; supports analog + PWM dimming; no integrated FET. | Designed for multi-string configurations with independent current regulation; needs external MOSFETs and sense resistors. | Choose for dual-output AFS systems requiring channel-to-channel matching <±1%; adds complexity but improves scalability. |
Compared with LM3409HV-Q1 and TPS92692QPWPRQ1, the TPS92515HVQDGQTQ1 offers lowest BOM count and smallest footprint for single-string 2 A automotive LED drivers, trading off external flexibility for integration and thermal efficiency in space-constrained headlamp modules.
Availability
TPS92515HVQDGQT1 is available at Aetrix Electronics and suitable for automotive lighting, industrial LED signage, and agricultural equipment requiring stable component supply with AEC-Q100 compliance and extended temperature support.
Supply support for TPS92515HVQDGQTQ1 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 50 years of automotive-grade product development experience.
The TPS92515HV-Q1 product line delivers highly integrated, thermally optimized LED drivers for safety-critical automotive lighting - designed specifically for AFS, DRL, and rear lamp systems demanding high reliability and wide input voltage tolerance.
FAQ
What is the maximum input voltage rating for the TPS92515HVQDGQTQ1?
The TPS92515HVQDGQTQ1 has an absolute maximum input voltage (VIN to GND) of 65 V, with recommended operating range from 5.5 V to 65 V. It maintains regulated operation down to 5.15 V after startup, making it suitable for automotive battery systems experiencing cold-crank transients. This rating is validated per AEC-Q100 Grade 1 stress testing protocols.
How does the TPS92515HVQDGQTQ1 achieve 10,000:1 shunt PWM dimming?
The TPS92515HVQDGQTQ1 achieves 10,000:1 shunt PWM dimming by combining its internal constant off-time control with an external shunt FET driven by the PWM pin. The PWM input modulates the LED current at frequencies up to several kHz while preserving analog-set baseline current - enabling ultra-fine brightness resolution without color shift or audible noise in automotive lighting.
Is the thermal pad of the TPS92515HVQDGQTQ1 required to be connected to ground?
Yes, the exposed thermal pad of the TPS92515HVQDGQTQ1 must be soldered to a GND plane to achieve specified thermal performance. Data sheet specifies RθJC(bot) = 5.3 °C/W only when the pad is electrically and thermally connected to GND. Omitting this connection degrades thermal resistance by >3× and risks thermal shutdown under 2 A load conditions.
Can the TPS92515HVQDGQTQ1 operate without an external COFF timing capacitor?
No - the COFF pin requires an external RC network to set the OFF-time. The device relies on the voltage ramp across the COFF capacitor (charged from VOUT or VCC) to determine switching frequency and maintain constant inductor ripple. Omitting the COFF capacitor disables regulation and causes uncontrolled operation or latch-up.
What is the function of the DRN pin on the TPS92515HVQDGQTQ1?
The DRN pin on the TPS92515HVQDGQTQ1 is the internal N-channel MOSFET drain terminal. It is internally bonded to the CSN node and serves as the high-side current sense reference point. It must be connected directly to the sense resistor's high-side terminal using a low-inductance Kelvin trace to preserve current measurement accuracy and minimize noise coupling.
TPS92515HVQDGQTQ1 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
TPS92515HVQDGQTQ1 FAQ
1.How can I place an order for TPS92515HVQDGQTQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92515HVQDGQTQ1 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 TPS92515HVQDGQTQ1 reliable?
The price and inventory of TPS92515HVQDGQTQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92515HVQDGQTQ1 is usually 5 days.
3.What payment methods are accepted for TPS92515HVQDGQTQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92515HVQDGQTQ1 transactions.
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4.How is shipping managed for TPS92515HVQDGQTQ1?
TPS92515HVQDGQTQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92515HVQDGQTQ1 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 TPS92515HVQDGQTQ1?
For technical support, including TPS92515HVQDGQTQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92515HVQDGQTQ1 requirements.
6.How does Aetrix verify that TPS92515HVQDGQTQ1 is sourced from the original manufacturer or authorized distributors?
All TPS92515HVQDGQTQ1 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 TPS92515HVQDGQTQ1 meets industry standards.
7.What is the process for return or replacement of TPS92515HVQDGQTQ1?
All TPS92515HVQDGQTQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS92515HVQDGQTQ1, 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 TPS92515HVQDGQTQ1 part is unused and in its original packaging.
Return procedure for TPS92515HVQDGQTQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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