TPS37043A8OFDDFRQ1 Texas Instruments Integrated Circuit (SOT23 (8-Pin)) In Stock
The TPS37043A8OFDDFRQ1 is an AEC-Q100-qualified automotive 3-channel window voltage supervisor IC from Texas Instruments with adjustable thresholds and very-high accuracy in a compact 8-pin SOT23 package. It monitors multiple supply rails simultaneously, asserting a fault output when any rail drifts outside its programmed window. Available from authorized distributors globally with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (8-Pin)
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS37043A8OFDDFRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-channel window voltage supervisor with adjustable thresholds for monitoring multiple rails simultaneously in automotive SoC power trees
- Very-high accuracy threshold detection ensuring tight voltage regulation compliance in AEC-Q100 Grade 1 automotive designs
- Compact 8-pin SOT23/TSSOP8 package occupying minimal PCB area in space-constrained ADAS and body control modules
Applications
The TPS37043A8OFDDFRQ1 is designed for automotive power management in ADAS, body control modules, and infotainment systems where 3 or more supply rails must be monitored continuously for under-voltage and over-voltage faults. Its adjustable window thresholds enable designers to set both upper and lower voltage limits on each channel, enabling precise power sequencing and fault detection across 3.3 V, 5 V, and 12 V domains. The AEC-Q100 qualification ensures reliable operation across the full automotive temperature range.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.1 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +3.3V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (8-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many supply rails can the TPS37043A8OFDDFRQ1 monitor simultaneously, and are the thresholds fixed or adjustable?
The TPS37043A8OFDDFRQ1 monitors 3 independent supply channels simultaneously, each with adjustable window thresholds that the designer sets via external resistor dividers. Both the upper (over-voltage) and lower (under-voltage) trip points are configurable per channel, making this IC flexible enough to supervise rails ranging from 1 V core supplies to 5 V or 12 V peripherals in a single 8-pin package.
For an ADAS power domain design, how does the window supervisor architecture of TPS37043A8OFDDFRQ1 improve fault coverage over simple undervoltage monitors?
A window supervisor monitors both under-voltage and over-voltage conditions on each of its 3 channels, whereas a simple undervoltage monitor only flags low-voltage faults. In ADAS power trees, a rail stuck high due to a failed LDO regulator can be just as dangerous as a low-voltage fault, causing processor misbehavior. The TPS37043A8OFDDFRQ1's dual-threshold window on each channel provides complete fault coverage at no additional IC cost, which is critical for functional safety in ISO 26262 applications.
What packaging options does the TPS37043A8OFDDFRQ1 offer and how do they affect PCB layout in compact ECUs?
The TPS37043A8OFDDFRQ1 comes in an 8-pin TSSOP8 package (0.1 inch pitch), which occupies roughly 3 mm x 4.4 mm of PCB area. This compact footprint allows the supervisor to fit alongside the power rails it monitors within the local bypass capacitor field, minimizing trace lengths and reducing noise coupling on sensitive power integrity paths in automotive ECUs where board area is at a premium.
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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.
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