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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Texas Instruments TPS37044MJOFDDFRQ1

Name: TPS37044MJOFDDFRQ1
Brand: Texas Instruments
SKU: TPS37044MJOFDDFRQ1
Price: 2.40 USD
Availability: InStock
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Part No.:: TPS37044MJOFDDFRQ1

Manufacturer:: Texas Instruments

Category:: Supervisors

Package:: SOT-23-8 Thin, TSOT-23-8

Datasheet:: TPS37044MJOFDDFRQ1.pdf

Description:: AUTOMOTIVE MULTICHANNEL WINDOW S

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Product details

Overview

TPS37044MJOFDDFRQ1 from Texas Instruments is an ASIL-A functional safety-compliant automotive quad-channel adjustable window voltage supervisor in an 8-pin SOT-23 (DDF) package. It monitors four independent voltage rails with ±0.25% typical threshold accuracy, programmable asymmetric window tolerance (±7% per channel), 10 ms fixed reset delay, and 5.5 µA typical quiescent current-designed for core/GPIO rail supervision in TI AM62x and TDA4 processors.

For engineers reviewing the TPS37044MJOFDDFRQ1 datasheet, TPS37044MJOFDDFRQ1 pinout, TPS37044MJOFDDFRQ1 application, or TPS37044MJOFDDFRQ1 equivalent, key selection criteria include its quad-channel adjustable window detection capability, AEC-Q100 Grade 1 qualification (–40°C to +125°C), open-drain active-low outputs, and internal resistor-based threshold programming eliminating external components.

Technical Context

The TPS37044MJOFDDFRQ1 implements a precision analog window comparator per channel with independent upper (OV) and lower (UV) thresholds, each configurable via internal resistor ladder with 20 mV resolution for V_IT ≤ 0.8 V and 0.5% resolution otherwise. Its glitch immunity exceeds 2 µs at 5% overdrive, and built-in hysteresis (0.75% typical) prevents false resets during rail transients.

Each of the four SENSE inputs drives a dedicated reset output pair (RESET1/RESET2), with RESET1 asserting on SENSE1/SENSE2 faults and RESET2 asserting on SENSE3/SENSE4 faults. The device uses a bandgap reference and internal oscillator to achieve stable timing across temperature, supporting fixed 10 ms delay without external timing components.

Key Specifications

Parameter	Value and Actual Design Meaning
Channels	Quad: independently configurable window/UV/OV monitoring on four rails
Threshold Accuracy	±0.25% typical at 25°C; ±1% max over –40°C to +125°C for V_IT = 0.8–5.55 V
Window Tolerance	Adjustable per channel: ±7% typical (asymmetric UV/OV allowed)
Quiescent Current	5.5 µA typical; enables always-on monitoring in low-power automotive systems
Reset Delay	Fixed 10 ms; eliminates need for external RC timing network
Supply Range	1.7 V to 6.0 V; supports wide-input automotive power domains
Output Type	Open-drain active-low (dual outputs: RESET1, RESET2); requires external pull-up

Pinout & Package

Package: DDF - 8-pin SOT-23 (1.6 mm × 2.9 mm), surface-mount, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power supply input	Bypassed with 0.1 µF capacitor to GND; powers internal bandgap, comparators, and logic
SENSE1	Channel 1 voltage monitor input	Direct connection to first rail; no external capacitor required; asserts RESET1 if outside window
SENSE2	Channel 2 voltage monitor input	Direct connection to second rail; asserts RESET1 if outside window (shared with SENSE1)
GND	Ground reference	Analog/digital common return; must be low-impedance path to system ground plane
SENSE3	Channel 3 voltage monitor input	Direct connection to third rail; asserts RESET2 if outside window
SENSE4	Channel 4 voltage monitor input	Direct connection to fourth rail; asserts RESET2 if outside window (shared with SENSE3)
RESET1	Active-low reset output (Ch1/Ch2)	Open-drain; requires external pull-up; stays asserted for full 10 ms after fault clears
RESET2	Active-low reset output (Ch3/Ch4)	Open-drain; requires external pull-up; independent timing from RESET1

Key Features

Feature	Design Value
ASIL-A compliance	Functional safety documentation and systematic capability up to ASIL D support ISO 26262 system-level design
Internal threshold resistors	Eliminates external resistor networks-reduces BOM count, improves accuracy, and enhances reliability in safety-critical systems
Adjustable low-voltage thresholds	Supports 0.4 V channels with ±7% tolerance-enables precise monitoring of sub-1 V processor cores and I/O rails
Dual independent reset outputs	RESET1 covers SENSE1/SENSE2; RESET2 covers SENSE3/SENSE4-allows hierarchical system reset partitioning
Glitch immunity	≥2 µs immunity at 5% overdrive-prevents spurious resets from EMI or transient noise on sensitive automotive rails

Applications

ADAS Domain Controller Power Sequencing	Automotive Infotainment SoC Supervision
Use Scenario: Monitors four critical rails (1.2 V core, 0.8 V GPU, 3.3 V I/O, 1.8 V memory) in a radar processing unit requiring synchronized reset assertion upon any rail fault. IC Role / Device Role / Timing Role: Quad-channel window supervisor providing independent OV/UV detection per rail with 10 ms fixed delay and dual open-drain outputs for fault-isolated reset signaling. Use Value: Enables deterministic power sequencing and fail-safe shutdown without external timing components or resistor dividers-reducing layout area by >30% vs discrete solutions.	Use Scenario: Supervises AM62x processor rails (DVDD, AVDD, IOVDD, VDD_CORE) in a head-unit display system operating across –40°C to +125°C ambient. IC Role / Device Role / Timing Role: Automotive-grade voltage supervisor delivering ±0.25% threshold accuracy and built-in hysteresis to prevent false resets during thermal cycling or load transients. Use Value: Guarantees reliable boot integrity and runtime rail health monitoring under harsh automotive conditions-meeting AEC-Q100 Grade 1 and ASIL-A requirements.
EV Battery Management Interface	TDA4-Based Vision Processing Unit
Use Scenario: Monitors isolated auxiliary supplies (5 V, 3.3 V, 1.8 V, 0.8 V) powering CAN transceivers, ADCs, and isolation gate drivers in high-voltage battery control modules. IC Role / Device Role / Timing Role: Quad-channel supervisor with adjustable thresholds enabling precise tolerance matching for diverse interface voltages and noise margins. Use Value: Supports functional safety decomposition by isolating reset domains-RESET1 handles analog front-end faults; RESET2 handles digital interface faults.	Use Scenario: Ensures stable operation of TDA4VM vision SoC by supervising its four primary supply domains during camera sensor streaming and neural network inference. IC Role / Device Role / Timing Role: Low-quiescent-current (5.5 µA) window supervisor with 0.4 V threshold capability for monitoring ultra-low-voltage AI accelerator rails. Use Value: Maintains continuous rail health visibility without compromising system-level power budget-critical for always-on ADAS perception functions.

ADAS Domain Controller Power Sequencing

Automotive Infotainment SoC Supervision

Use Scenario: Monitors four critical rails (1.2 V core, 0.8 V GPU, 3.3 V I/O, 1.8 V memory) in a radar processing unit requiring synchronized reset assertion upon any rail fault.

IC Role / Device Role / Timing Role: Quad-channel window supervisor providing independent OV/UV detection per rail with 10 ms fixed delay and dual open-drain outputs for fault-isolated reset signaling.

Use Value: Enables deterministic power sequencing and fail-safe shutdown without external timing components or resistor dividers-reducing layout area by >30% vs discrete solutions.

Use Scenario: Supervises AM62x processor rails (DVDD, AVDD, IOVDD, VDD_CORE) in a head-unit display system operating across –40°C to +125°C ambient.

IC Role / Device Role / Timing Role: Automotive-grade voltage supervisor delivering ±0.25% threshold accuracy and built-in hysteresis to prevent false resets during thermal cycling or load transients.

Use Value: Guarantees reliable boot integrity and runtime rail health monitoring under harsh automotive conditions-meeting AEC-Q100 Grade 1 and ASIL-A requirements.

EV Battery Management Interface

TDA4-Based Vision Processing Unit

Use Scenario: Monitors isolated auxiliary supplies (5 V, 3.3 V, 1.8 V, 0.8 V) powering CAN transceivers, ADCs, and isolation gate drivers in high-voltage battery control modules.

IC Role / Device Role / Timing Role: Quad-channel supervisor with adjustable thresholds enabling precise tolerance matching for diverse interface voltages and noise margins.

Use Value: Supports functional safety decomposition by isolating reset domains-RESET1 handles analog front-end faults; RESET2 handles digital interface faults.

Use Scenario: Ensures stable operation of TDA4VM vision SoC by supervising its four primary supply domains during camera sensor streaming and neural network inference.

IC Role / Device Role / Timing Role: Low-quiescent-current (5.5 µA) window supervisor with 0.4 V threshold capability for monitoring ultra-low-voltage AI accelerator rails.

Use Value: Maintains continuous rail health visibility without compromising system-level power budget-critical for always-on ADAS perception functions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS37044BJOFDDFRQ1	Same quad-channel, open-drain, 10 ms delay, but ±4% window tolerance (tighter) and 0.8 V minimum threshold (higher than 0.4 V)	Preferred where tighter tolerance is required and all monitored rails ≥0.8 V; not suitable for sub-0.8 V core rails	Select TPS37044MJOFDDFRQ1 when supervising 0.4 V rails (e.g., TDA4 AI accelerators); choose TPS37044BJOFDDFRQ1 for higher-threshold, tighter-tolerance use cases
TLV809E28DBVRQ1	Single-channel, fixed 2.8 V UV detector only; no window or OV capability; 1.4 µA IQ; SOT-23-3	Only monitors one rail with undervoltage-only detection; lacks multi-rail coordination and window functionality	Use TLV809E28DBVRQ1 for simple single-rail UV monitoring; TPS37044MJOFDDFRQ1 is required for quad-channel window supervision with asymmetric tolerance

Compared with TPS37044BJOFDDFRQ1 and TLV809E28DBVRQ1, the TPS37044MJOFDDFRQ1 uniquely supports four adjustable 0.4 V–5.55 V window channels with ±7% tolerance-enabling comprehensive, component-minimized rail supervision for modern automotive SoCs where sub-1 V core domains demand precise, low-drift monitoring.

Availability

TPS37044MJOFDDFRQ1 is available at Aetrix Electronics and suitable for Advanced Driver Assistance Systems (ADAS), automotive infotainment systems, and EV powertrain control units requiring stable component supply, AEC-Q100 compliance, and functional safety documentation support.

Supply support for TPS37044MJOFDDFRQ1 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 company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and communications markets.

The TPS3704-Q1 product line delivers ASIL-A-compliant, multi-channel voltage supervisors optimized for next-generation automotive processors-including AM62x and TDA4-where precise, low-power, and safety-certifiable rail monitoring is mandatory.

FAQ

What is the exact threshold voltage range supported by the TPS37044MJOFDDFRQ1?

The TPS37044MJOFDDFRQ1 supports an adjustable threshold programming range from 0.4 V to 5.55 V per channel. For the specific variant TPS37044MJOFDDFRQ1, the documented thresholds are 0.4 V (±7%), 0.4 V (±7%), 0.8 V (±7%), and 0.8 V (±7%)-enabling precise supervision of ultra-low-voltage processor cores and I/O rails. Threshold resolution is 20 mV for V_IT ≤ 0.8 V.

Does the TPS37044MJOFDDFRQ1 require external resistors to set voltage thresholds?

No, the TPS37044MJOFDDFRQ1 does not require external resistors to set overvoltage or undervoltage thresholds. It integrates precision internal resistor ladders for threshold programming, improving accuracy and reliability. External resistors are optional for design flexibility but not needed for standard operation-this simplifies BOM and PCB layout while meeting ASIL-A safety requirements.

How are the reset outputs configured on the TPS37044MJOFDDFRQ1?

The TPS37044MJOFDDFRQ1 features two open-drain active-low reset outputs: RESET1 asserts when either SENSE1 or SENSE2 falls outside its window, and RESET2 asserts when either SENSE3 or SENSE4 falls outside its window. Each output has a fixed 10 ms delay and requires an external pull-up resistor. This dual-output architecture enables fault-domain partitioning in complex automotive systems.

Is the TPS37044MJOFDDFRQ1 qualified for automotive temperature grade 1 operation?

Yes, the TPS37044MJOFDDFRQ1 is AEC-Q100 qualified for automotive temperature grade 1, with guaranteed operation from –40°C to +125°C ambient. Its electrical characteristics-including ±1% threshold accuracy and 5.5 µA typical quiescent current-are specified across this full range, making it suitable for under-hood and infotainment applications where thermal robustness is critical.

What functional safety documentation is provided for the TPS37044MJOFDDFRQ1?

Texas Instruments provides ISO 26262-compliant functional safety documentation for the TPS37044MJOFDDFRQ1, including safety analysis reports, FMEDA data, and hardware safety manuals. The device achieves ASIL-A compliance with systematic capability up to ASIL D and hardware capability rated ASIL A-supporting integration into safety-critical automotive systems such as ADAS and powertrain control units.

TPS37044MJOFDDFRQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: SOT-23-8 Thin, TSOT-23-8

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

Type:: Multi-Voltage Supervisor

Number of Voltages Monitored:: 4

Voltage - Threshold:: Adjustable/Selectable

Output:: Open Drain or Open Collector

Reset:: Active Low

Reset Timeout:: 10ms Typical

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: TSOT-23-8

TPS37044MJOFDDFRQ1 FAQ

1.How can I place an order for TPS37044MJOFDDFRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS37044MJOFDDFRQ1 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 TPS37044MJOFDDFRQ1 reliable?

The price and inventory of TPS37044MJOFDDFRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS37044MJOFDDFRQ1 is usually 5 days.

3.What payment methods are accepted for TPS37044MJOFDDFRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS37044MJOFDDFRQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS37044MJOFDDFRQ1?

TPS37044MJOFDDFRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS37044MJOFDDFRQ1 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 TPS37044MJOFDDFRQ1?

For technical support, including TPS37044MJOFDDFRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS37044MJOFDDFRQ1 requirements.

6.How does Aetrix verify that TPS37044MJOFDDFRQ1 is sourced from the original manufacturer or authorized distributors?

All TPS37044MJOFDDFRQ1 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 TPS37044MJOFDDFRQ1 meets industry standards.

7.What is the process for return or replacement of TPS37044MJOFDDFRQ1?

All TPS37044MJOFDDFRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS37044MJOFDDFRQ1, 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 TPS37044MJOFDDFRQ1 part is unused and in its original packaging.

Return procedure for TPS37044MJOFDDFRQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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