TPS92643QPWPRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS92643QPWPRQ1 is an AEC-Q100 automotive-grade 3 A synchronous buck infrared LED driver from Texas Instruments in a 16-pin HTSSOP package. It delivers accurate single-channel LED current control for automotive LiDAR and IR sensing systems. RoHS-compliant with e4 finish, available in tape-and-reel packaging for high-volume automotive production.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- TPS92643QPWPRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0200(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3 A synchronous buck topology minimizes power loss and reduces external component count for compact automotive IR LED driver designs
- AEC-Q100 automotive qualification ensures reliability across -40°C to +125°C junction temperature range for under-hood and ADAS applications
- Single-channel precision LED current control enables consistent IR illumination intensity for LiDAR ranging and night-vision camera systems
Applications
TPS92643QPWPRQ1 is designed for automotive infrared LED driver applications including LiDAR, driver monitoring systems, and in-cabin night-vision cameras. Its 3 A synchronous buck architecture supports high-pulsed IR LED currents needed for time-of-flight ranging at distances up to several meters. The AEC-Q100 qualification and -40°C to +125°C operating range make it suitable for both exterior ADAS sensors and interior cabin monitoring modules.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Multiplexed Display Capability | NO |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Number of Segments | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Current-Max | 4mA |
| Supply Voltage-Max | 36V |
| Supply Voltage-Min | 5.5V |
| Supply Voltage-Nom | 14V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| fmax-Min | 2.2MHz |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output current can TPS92643QPWPRQ1 supply to an infrared LED array?
TPS92643QPWPRQ1 provides up to 3 A continuous output current through its synchronous buck converter topology, making it capable of driving high-power IR LEDs used in automotive LiDAR and time-of-flight ranging systems at distances exceeding 5 meters. The precise current regulation maintains consistent LED brightness across supply voltage variations.
Is TPS92643QPWPRQ1 qualified for automotive applications including ADAS and in-cabin sensing?
Yes, TPS92643QPWPRQ1 meets AEC-Q100 automotive qualification requirements and operates across -40°C to +125°C junction temperature. This makes it suitable for exterior ADAS LiDAR modules and interior driver monitoring systems that require long-term reliability under harsh automotive thermal and vibration conditions.
What package does TPS92643QPWPRQ1 use and how does it affect thermal management in a PCB design?
TPS92643QPWPRQ1 comes in a 16-pin HTSSOP package with an exposed thermal pad, enabling efficient heat dissipation at 3 A switching currents. The HTSSOP footprint measures approximately 5 mm × 4.4 mm and allows 2-layer PCB designs to maintain junction temperatures below 125°C with proper copper pour heatsinking.
When should a designer choose TPS92643QPWPRQ1 over a non-synchronous buck LED driver?
The synchronous buck topology in TPS92643QPWPRQ1 eliminates the external Schottky diode required by non-synchronous designs, reducing BOM cost by 1 component and improving efficiency by up to 5% at 3 A loads. This advantage is most significant in battery-powered automotive systems where every milliwatt of efficiency impacts thermal budget and driving range.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.7567 | $175.67 |
| 170+ | $1.1769 | $200.07 |
| 220+ | $1.1377 | $250.29 |
| 295+ | $1.0200 | $300.90 |
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