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Analog Devices Inc./Maxim Integrated MAX6765TTSD1+
- Part No.:
- MAX6765TTSD1+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
MAX6765TTSD1+.pdf
- Description:
- IC SUPERVISOR
- Quantity:
- Payment:
- Shipping:
Inventory:2,391
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Product details
Overview
MAX6765TTSD1+ from Maxim Integrated is a micropower automotive linear regulator with integrated supervisor, delivering 5.0V at up to 100mA from 4V–72V input. It features 31µA quiescent current, 620mV dropout at 100mA, and an open-drain active-low RESET output with fixed 2.888V threshold and 50ms timeout-designed for always-on vehicle modules requiring reliable power sequencing and brownout detection.
For engineers reviewing the MAX6765TTSD1+ datasheet, MAX6765TTSD1+ pinout, MAX6765TTSD1+ application, or MAX6765TTSD1+ equivalent, key selection criteria include its AEC-Q100-qualified operation across –40°C to +125°C, thermally enhanced 3mm × 3mm TDFN package (1.951W dissipation), fixed 5V output with precise reset threshold, and compatibility with automotive ignition control schemes.
Technical Context
The MAX6765TTSD1+ implements a single-enable (ENABLE) linear regulator architecture with internal 1.233V reference and precision bandgap-based reset comparator. Its RESET output asserts when OUT falls below 2.888V (±3% over temperature), then holds low for exactly 50ms after recovery-guaranteed by internal capacitor ramp circuitry tied to TIMEOUT pin.
This variant belongs to the MAX6765–MAX6774B family's "T/S" output voltage group (3.3V/5V fixed options) and "D3" timeout bin (50ms). It lacks watchdog (WDI), HOLD, RESETIN, or dual-enable functionality-confirmed by pin mapping and functional diagrams specific to MAX6765/MAX6766 devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 72V - supports full automotive battery range including cold-crank (4.5V) and load-dump (60V+) transients. |
| Output Voltage | 5.0V ±1.5% - factory-trimmed fixed output; stable across 1mA–100mA load and –40°C to +125°C. |
| Quiescent Current | 31µA typical - enables >10-year battery life in always-on telematics or body-control modules. |
| Dropout Voltage | 620mV at 100mA - ensures regulation down to VIN = 5.62V, critical for start-stop systems. |
| RESET Threshold | 2.888V (S-grade) - triggers reset before microcontroller brownout; tolerance ±3% over full temp range. |
| RESET Timeout | 50ms (D3 option) - meets µP reset timing requirements per JEDEC JESD8-12 and ISO 16750-2. |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents damage during sustained high-ambient/high-VIN operation. |
Pinout & Package
MAX6765TTSD1+ uses a thermally enhanced 6-pin 3mm × 3mm TDFN-EP package with exposed pad (EP) soldered to PCB ground plane for optimal thermal performance (1.951W max dissipation at TA ≤ +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Bypassed to GND with ≥0.1µF ceramic capacitor; withstands 80V absolute max. |
| 2 GND | Ground Reference | Primary return path for regulator, RESET, and ENABLE; connects internally to EP. |
| 3 ENABLE | Active-High Enable | Pulled low internally (0.6µA sink); requires ≥1.4V to activate regulator; no hold function. |
| 4 RESET | Active-Low Open-Drain Output | Sinks ≥3.2mA at 0.4V; requires external pullup; asserts on VOUT < 2.888V. |
| 5 TIMEOUT | Reset Timeout Adjust | Internally connected to OUT for fixed 50ms timeout; leave unconnected if not adjusting. |
| 6 OUT | Regulated Output | 5.0V source; bypassed with ≥10µF capacitor; protected against short-circuit and overtemperature. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive applications (-40°C to +125°C junction), meeting stress test requirements for Grade 0. |
| Low-IQ Supervisory Regulator | 31µA quiescent current enables direct connection to vehicle battery without auxiliary sleep controllers. |
| Fixed 5V Output with Tight Regulation | ±1.5% initial accuracy and <1.5% load regulation ensure stable MCU core voltage under dynamic loads. |
| Integrated Reset with Precision Threshold | 2.888V reset point (S-grade) tracks VOUT closely, preventing premature or delayed resets during battery sag. |
| Robust Transient Immunity | Withstands 80V input transients and delivers 70dB PSRR at 100Hz-critical for noisy automotive electrical environments. |
Applications
| Infotainment Power Supply | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers audio DSP and display controller in head-unit during engine cranking and load-dump events. IC Role / Device Role / Timing Role: Primary 5V LDO with supervisor; provides clean, sequenced power and brownout reset to prevent firmware corruption. Use Value: 72V input rating and 620mV dropout maintain regulation through 5.6V minimum VIN, ensuring uninterrupted operation during cold-crank. |
Use Scenario: Supplies gateway MCU and CAN transceivers in door module with always-on wake capability. IC Role / Device Role / Timing Role: Always-on 5V regulator with 50ms reset pulse; monitors VOUT and asserts reset during battery undervoltage. Use Value: 31µA IQ extends battery life beyond 10 years in sleep mode; AEC-Q100 qualification ensures reliability in harsh under-hood environments. |
| Telematics Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Hub |
Use Scenario: Powers GPS/GNSS receiver and cellular modem in connected vehicle platform with persistent network registration. IC Role / Device Role / Timing Role: Main 5V supply with supervisor; RESET signal synchronizes modem boot sequence after battery recovery. Use Value: 50ms fixed timeout satisfies LTE modem reset timing requirements while eliminating external RC components. |
Use Scenario: Provides regulated 5V to radar preprocessor and camera interface ICs in parking assist ECU. IC Role / Device Role / Timing Role: Safety-critical power rail with fault detection; RESET output feeds system watchdog logic for ASIL-B compliance. Use Value: Thermal shutdown (160°C) and short-circuit protection prevent thermal runaway in sealed sensor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator with supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6765TTLD4+ | Same 5V output and TDFN package, but 200ms reset timeout (D4) instead of 50ms (D3). | Suitable for µPs requiring longer reset assertion, e.g., legacy ECUs with slow POR circuits. | Select only if 200ms timeout is explicitly required; otherwise MAX6765TTSD1+ matches tighter timing specs. |
| TLV70750PDQNR | 5V fixed LDO only (no supervisor); 25µA IQ; 200mV dropout; SOT-23-5 package; no AEC-Q100 rating. | Lacks RESET, timeout, and automotive qualification-limited to non-safety-critical consumer or industrial use. | Use only in cost-sensitive, non-automotive designs where supervisor functionality is handled externally. |
Compared with MAX6765TTLD4+, MAX6765TTSD1+ offers faster reset deassertion critical for modern low-power MCUs; versus TLV70750PDQNR, it integrates essential automotive supervisory functions in a qualified, thermally robust package-eliminating board space and BOM count for discrete reset ICs.
Availability
MAX6765TTSD1+ is available at Aetrix Electronics and suitable for automotive infotainment, body control modules, telematics units, and ADAS sensor hubs requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX6765TTSD1+ 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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for automotive, industrial, and communications markets, emphasizing reliability, integration, and power efficiency.
The MAX6765–MAX6774B product line targets automotive power management with micropower supervision, delivering robust 5V/3.3V/2.5V/1.8V regulation and precise reset functionality for always-on electronic control units.
FAQ
What is the exact reset threshold voltage for MAX6765TTSD1+?
The MAX6765TTSD1+ has a fixed reset threshold of 2.888V (S-grade), specified with ±3% tolerance over –40°C to +125°C. This value is factory-trimmed and corresponds to the "S" suffix in the part number, matching Table 2 of the datasheet. The threshold remains stable under varying load and input conditions, ensuring consistent brownout detection for the connected microcontroller.
Does MAX6765TTSD1+ include a watchdog timer function?
No, MAX6765TTSD1+ does not include a watchdog timer. Watchdog functionality is exclusive to MAX6773/MAX6773B/MAX6774/MAX6774B variants (identified by "73" or "74" in the base part number). The MAX6765TTSD1+ belongs to the MAX6765/MAX6766 series, which provides only voltage-monitoring reset and fixed timeout-no WDI pin or watchdog timeout logic is present.
Can MAX6765TTSD1+ be used with adjustable output voltage?
No, MAX6765TTSD1+ provides only a fixed 5.0V output. Adjustable output operation requires the SET pin, which is absent in MAX6765/MAX6766 devices. The "TT" prefix confirms it is a fixed-output variant (T = 3.3V or 5V option), and the "S" suffix denotes the 2.888V reset threshold-not an adjustable configuration. For adjustable outputs, consider MAX6767–MAX6774B variants instead.
What is the maximum continuous power dissipation for MAX6765TTSD1+ at +105°C ambient?
At +105°C ambient, MAX6765TTSD1+ has a derated maximum power dissipation of 1.118W. This is calculated using the formula PDMAX = 1.9W − 0.0244W/°C × (105 − 70) = 1.9W − 0.854W = 1.046W, rounded to 1.118W per official thermal derating curves. This limits usable output current under high-VIN/high-load conditions-e.g., at VIN = 42V and VOUT = 5V, max IOUT ≈ 30mA.
Is MAX6765TTSD1+ pin-compatible with other MAX6765 variants like MAX6765TTLD4+?
Yes, MAX6765TTSD1+ is pin-compatible with all MAX6765/MAX6766 variants in the same 6-pin TDFN package-including MAX6765TTLD4+. Pin functions (IN, GND, ENABLE, RESET, TIMEOUT, OUT), footprint, and thermal pad layout are identical. Only the reset threshold (2.888V vs. 4.375V) and timeout (50ms vs. 200ms) differ-requiring no PCB changes when substituting within the same MAX6765 family.
MAX6765TTSD1+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX6765TTSD1+ FAQ
1.How can I place an order for MAX6765TTSD1+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6765TTSD1+ 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 MAX6765TTSD1+ reliable?
The price and inventory of MAX6765TTSD1+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6765TTSD1+ is usually 5 days.
3.What payment methods are accepted for MAX6765TTSD1+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6765TTSD1+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6765TTSD1+?
MAX6765TTSD1+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6765TTSD1+ 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 MAX6765TTSD1+?
For technical support, including MAX6765TTSD1+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6765TTSD1+ requirements.
6.How does Aetrix verify that MAX6765TTSD1+ is sourced from the original manufacturer or authorized distributors?
All MAX6765TTSD1+ 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 MAX6765TTSD1+ meets industry standards.
7.What is the process for return or replacement of MAX6765TTSD1+?
All MAX6765TTSD1+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6765TTSD1+, 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 MAX6765TTSD1+ part is unused and in its original packaging.
Return procedure for MAX6765TTSD1+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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