TPS929121AQPWPRQ1 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS929121AQPWPRQ1 is an AEC-Q100-qualified automotive 12-channel high-side LED driver from Texas Instruments with a 40 V input voltage rating and FlexWire single-wire diagnostic interface. It supports independent PWM dimming on each of the 12 channels for precise automotive exterior and interior lighting control. Available in a 24-pin HTSSOP package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 25
- Lifecycle
- ACTIVE
- Datasheet
- TPS929121AQPWPRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3657(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12 independent high-side LED driver channels with individual PWM dimming control on a single 40 V-rated IC for automotive lighting
- FlexWire single-wire digital interface simplifies system wiring harness and enables real-time open/short LED fault diagnostics per channel
- AEC-Q100 Grade qualification with -40°C to 125°C operating range ensures long-term reliability in harsh automotive environments
- Integrated open-load and short-circuit detection on all 12 channels reduces system-level diagnostic complexity and supports ISO 26262 safety requirements
Applications
TPS929121AQPWPRQ1 is used in automotive exterior lighting modules including adaptive headlights, daytime running lights, tail lamps, and turn signal assemblies where per-channel LED current control and fault detection are required. Its FlexWire interface reduces the number of GPIO lines needed between the lighting ECU and driver IC, simplifying PCB routing in compact lamp housings. The device is also suitable for interior ambient lighting systems where 12 channels allow independent control of multiple RGB or white LED zones.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Multiplexed Display Capability | NO |
| Number of Channels | 12 |
| Number of Functions | 1 |
| Number of Segments | 36 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP24,.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 Voltage-Max | 40V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 12V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| fmax-Min | 0.001MHz |
| 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 | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many LED channels can TPS929121AQPWPRQ1 independently control, and what is its supply voltage rating?
TPS929121AQPWPRQ1 provides 12 independent high-side LED driver channels with individual PWM dimming, all on a single 40 V-rated IC. The 40 V input rating accommodates automotive 12 V battery systems with load-dump transients, and each channel can be individually enabled, dimmed, or diagnosed without affecting other channels.
What is the FlexWire interface in TPS929121AQPWPRQ1 and how does it reduce automotive wiring complexity?
FlexWire is a single-wire serial diagnostic and command interface on TPS929121AQPWPRQ1 that allows the host ECU to read open-load and short-circuit fault status for all 12 LED channels over a single wire instead of 12 individual GPIO lines. This reduces the cable harness between the body control module and lighting assembly by up to 11 wires, saving weight and connector cost in automotive designs where every gram and centimeter of harness adds to vehicle cost.
What temperature range does TPS929121AQPWPRQ1 support, and what automotive qualification standard does it meet?
TPS929121AQPWPRQ1 operates over a -40°C to 125°C junction temperature range and is qualified to AEC-Q100 Grade 1, the standard for automotive ICs in engine-bay adjacent environments. The HTSSOP-24 package provides good thermal dissipation, and the wide temperature range ensures reliable LED current regulation from cold winter start-up conditions to hot underhood temperatures during summer operation.
Can TPS929121AQPWPRQ1 replace multiple discrete LED drivers in a tail lamp assembly to reduce component count?
Yes. A typical tail lamp assembly with brake, position, turn signal, and reverse functions may require 8 to 12 discrete LED driver channels. TPS929121AQPWPRQ1 integrates all 12 channels with per-channel fault detection in a single 24-pin HTSSOP package, replacing 2 to 4 separate 4-channel driver ICs. This consolidation reduces PCB area by approximately 50%, lowers total component count, and simplifies the fault diagnostic software with a single FlexWire interface.
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About Texas Instruments
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 |
|---|---|---|
| 250+ | $2.6994 | $674.84 |
| 500+ | $2.6135 | $1306.73 |
| 1000+ | $2.5427 | $2542.74 |
| 2000+ | $2.4122 | $4824.36 |
| 4000+ | $2.3657 | $9462.72 |
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