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Texas Instruments TPS92515HVDGQT
- Part No.:
- TPS92515HVDGQT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS92515HVDGQT.pdf
- Description:
- IC LED DRV RGLTR PWM 2A 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,927
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Product details
Overview
TPS92515HVDGQT from Texas Instruments is a monolithic buck LED driver IC with integrated 290-mΩ N-channel MOSFET, 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 targets automotive headlamp matrix and industrial high-contrast lighting systems.
For engineers reviewing the TPS92515HVDGQT datasheet, TPS92515HVDGQT pinout, TPS92515HVDGQT application, or TPS92515HVDGQT equivalent, this page provides verified technical context, validated pin functions, confirmed thermal performance in HVSSOP-10 PowerPAD, and real-world dimming implementation guidance for switched LED matrix and safety-critical illumination designs.
Technical Context
The TPS92515HVDGQT uses constant off-time (COT), peak-current control with high-side differential current sensing - enabling inherent cycle-by-cycle current limiting and no loop compensation. Its adjustable current sense threshold (220–251 mV) sets LED current via external IADJ voltage and sense resistor, while COFF pin controls off-time using output-voltage-derived ramp for stable inductor ripple.
It integrates thermal shutdown (175°C), BOOT UVLO (2.0–3.5 V), VIN UVLO (4.65–5.15 V), and supports three dimming modes: analog (200:1), PWM (1000:1), and shunt FET PWM (10,000:1). The DRN pin connects directly to CSN for accurate high-side sensing, and SW pin drives the internal FET source.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5.5 V to 65 V - supports 48 V industrial rails and automotive cold-crank (down to 5.15 V after startup) |
| Max Output Current | 2 A average - sustained with proper thermal management in HVSSOP-10 PowerPAD package |
| Integrated FET RDS(on) | 290 mΩ (typ) at 25°C - enables high-efficiency operation without external switch |
| Current Sense Threshold | 220–251 mV (adjustable via IADJ) - enables precise analog dimming and low-loss sensing |
| Shunt PWM Dimming Ratio | 10,000:1 - linear response maintained via COFF-ramp optimization during output shorting |
| Thermal Shutdown | 175°C with 10°C hysteresis - protects device under overload or poor heatsinking conditions |
| Junction-to-Ambient RθJA | 56.2°C/W - defines minimum PCB copper area and thermal vias required for 2 A continuous operation |
Pinout & Package
TPS92515HVDGQT is housed in a thermally enhanced 10-pin HVSSOP package (3 mm × 3 mm) with exposed thermal pad soldered to PCB ground for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COFF | Off-time timing input | Resistor-capacitor network sets OFF-time; voltage ramp derived from VOUT or VCC to maintain constant inductor ripple during shunt dimming |
| 2 - VCC | 5-V regulated output | Internal LDO output powering gate drive and logic; requires ≥1 µF ceramic decoupling to GND |
| 3 - GND | Power and signal reference | Common return for all circuits; must be connected to thermal pad for thermal and electrical integrity |
| 4 - BOOT | High-side gate driver supply | Connected to SW via capacitor and VCC via diode; supplies >5 V to drive internal N-FET gate above SW potential |
| 5 - SW | Internal FET source node | Switching node connecting to inductor; carries full switching current and requires low-inductance layout |
| 6 - DRN | Internal FET drain | Connected internally to CSN; forms high-side current sense path with external sense resistor between VIN and CSN |
| 7 - CSN | Current sense negative input | Kelvin connection point for sense resistor; low bias current (±5 µA) ensures accuracy with milliohm resistors |
| 8 - VIN | Main power input & sense positive | Accepts 5.5–65 V; also serves as high-side current sense reference - must be routed with low impedance |
| 9 - PWM | Digital dimming enable | Active-high PWM input; modulates LED current at frequency independent of switching frequency; tied to VCC if unused |
| 10 - IADJ | Analog current setpoint | Voltage-adjustable input (0.1–2.2 V) scaling current sense threshold; enables 200:1 analog dimming range |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 290-mΩ N-channel FET | Eliminates external switch, reduces BOM count, and simplifies layout for compact LED drivers |
| High-side current sensing | Enables true ground-referenced LED cathode configuration - critical for matrix switching and fault isolation |
| 10,000:1 shunt FET PWM dimming | Supports ultra-high-contrast illumination in automotive AFS and machine vision without color shift |
| No loop compensation required | Constant off-time architecture delivers fast transient response and stable operation across wide input/output ranges |
| Thermally enhanced HVSSOP-10 PowerPAD | 5.3°C/W junction-to-case (bottom) resistance enables 2 A operation with minimal PCB copper |
| Automotive-grade reliability | AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient) - validated for headlamp and DRL applications |
Applications
| Automotive Adaptive Front Lighting | Industrial Machine Vision Illumination |
|---|---|
Use Scenario: Dynamic LED pixel control in matrix headlamps for glare-free high-beam and cornering light. IC Role / Device Role / Timing Role: Primary buck controller regulating individual LED strings; synchronizes shunt FET dimming with camera exposure timing. Use Value: 10,000:1 dimming ratio enables precise lumen control per segment without PWM flicker visible to cameras or human eye. |
Use Scenario: High-intensity strobed lighting synchronized to high-speed industrial cameras for defect inspection. IC Role / Device Role / Timing Role: Constant-current source with sub-microsecond PWM response; drives LEDs in burst mode aligned to image capture trigger. Use Value: Fast transient response (<200 ns CSN delay) and inherent cycle-by-cycle current limit ensure repeatable light intensity per frame. |
| Emergency Exit Signage | Medical Endoscopic Light Source |
Use Scenario: Battery-backed LED signage requiring fail-safe dimming and thermal derating during extended operation. IC Role / Device Role / Timing Role: Primary LED driver with integrated thermal shutdown and VIN UVLO; manages current reduction during brownout. Use Value: 175°C thermal shutdown with 10°C hysteresis prevents LED degradation while maintaining visibility during overheating events. |
Use Scenario: Compact, low-EMI LED light engine for rigid/flexible endoscopes requiring stable color temperature. IC Role / Device Role / Timing Role: Buck regulator with high-side sensing and analog dimming; eliminates ground-loop noise in sensitive imaging paths. Use Value: 220–251 mV programmable current sense threshold enables <±3% current accuracy - critical for consistent tissue illumination. |
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 | Requires external high-side switch; higher BOM cost but supports >65 V inputs | Choose when input exceeds 65 V or when discrete FET selection is needed for thermal partitioning |
| TPS92692QPWPRQ1 | Current-mode boost/buck-boost controller; 65 V input; no integrated FET | Supports wider LED string configurations (boost, SEPIC); requires external MOSFET and compensation | Choose for non-buck topologies or when driving long LED strings exceeding VIN |
Compared with LM3409HV-Q1 and TPS92692QPWPRQ1, TPS92515HVDGQT offers lowest system-level complexity for buck-only 2 A applications due to its integrated FET, single-chip shunt dimming support, and HVSSOP thermal performance - eliminating gate drivers, external current sense amplifiers, and compensation networks.
Availability
TPS92515HVDGQT is available at Aetrix Electronics and suitable for automotive headlamp modules, industrial machine vision systems, and medical endoscopic light engines requiring stable component supply, AEC-Q100 compliance, and production-ready thermal validation.
Supply support for TPS92515HVDGQT 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 innovation in high-reliability power conversion.
The TPS92515HVDGQT belongs to TI's high-voltage LED driver product line, engineered specifically for automotive adaptive lighting and industrial high-contrast illumination where integration, thermal robustness, and multi-method dimming are mandatory.
FAQ
What is the maximum input voltage supported by the TPS92515HVDGQT?
The TPS92515HVDGQT supports an absolute maximum input voltage of 65 V and operates continuously from 5.5 V to 65 V. After startup, it maintains regulation down to 5.15 V, making it suitable for automotive cold-crank conditions and 48 V industrial systems. This high-voltage rating distinguishes it from the standard TPS92515 (42 V max).
How does the TPS92515HVDGQT achieve 10,000:1 shunt PWM dimming?
The TPS92515HVDGQT achieves 10,000:1 shunt PWM dimming by dynamically re-routing the COFF pin charging source from VOUT to VCC during output shorting events. This preserves a linear OFF-time ramp even when the LED string is shunted, ensuring constant inductor ripple and linear current response across the full dimming range - a capability confirmed in TI's SLUSBZ6A datasheet Figure 14.
Can the TPS92515HVDGQT operate without external loop compensation?
Yes, the TPS92515HVDGQT uses constant off-time (COT) peak-current control, which eliminates the need for external loop compensation components. Its inherent stability across input/output variations and load transients is validated in TI's datasheet Section 8.3.1 and typical characteristics plots - enabling faster design cycles and smaller PCB footprints.
What thermal management is required for 2 A continuous operation of the TPS92515HVDGQT?
For 2 A continuous operation, the TPS92515HVDGQT requires the thermal pad to be soldered to a minimum 100 mm² copper pour with ≥4 thermal vias (0.3 mm diameter) connecting to inner/ground planes. Its RθJA of 56.2°C/W assumes this layout; insufficient copper increases junction temperature beyond the 150°C max operating limit, triggering thermal shutdown.
Is the TPS92515HVDGQT AEC-Q100 qualified?
No - the TPS92515HVDGQT is the commercial-grade variant. For automotive applications, TI specifies the TPS92515HV-Q1 (same 65 V rating) as AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient). The 'DGQT' suffix denotes the HVSSOP-10 package but does not imply automotive qualification; always verify part number suffixes against TI's official orderable addendum.
TPS92515HVDGQT 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
TPS92515HVDGQT FAQ
1.How can I place an order for TPS92515HVDGQT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS92515HVDGQT 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 TPS92515HVDGQT reliable?
The price and inventory of TPS92515HVDGQT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS92515HVDGQT is usually 5 days.
3.What payment methods are accepted for TPS92515HVDGQT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS92515HVDGQT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS92515HVDGQT?
TPS92515HVDGQT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS92515HVDGQT 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 TPS92515HVDGQT?
For technical support, including TPS92515HVDGQT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS92515HVDGQT requirements.
6.How does Aetrix verify that TPS92515HVDGQT is sourced from the original manufacturer or authorized distributors?
All TPS92515HVDGQT 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 TPS92515HVDGQT meets industry standards.
7.What is the process for return or replacement of TPS92515HVDGQT?
All TPS92515HVDGQT units undergo pre-shipment inspection (PSI). If there is an issue with TPS92515HVDGQT, 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 TPS92515HVDGQT part is unused and in its original packaging.
Return procedure for TPS92515HVDGQT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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