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Analog Devices Inc./Maxim Integrated MAX6768TALD2+
- Part No.:
- MAX6768TALD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6768TALD2+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,275
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Product details
Overview
MAX6768TALD2+ from Maxim Integrated is a micropower automotive linear regulator with integrated supervisor, delivering 100mA at fixed 5.0V output (L-suffix), featuring active-low open-drain RESET, 12.5ms fixed reset timeout (D2), and HOLD/ENABLE dual-control logic for self-holding operation. It operates from 4V to 72V input, consumes only 31µA quiescent current, and is qualified for -40°C to +125°C ambient in automotive modules requiring always-on power with reliable brownout detection.
For engineers reviewing the MAX6768TALD2+ datasheet, MAX6768TALD2+ pinout, MAX6768TALD2+ application, or MAX6768TALD2+ equivalent, key selection criteria include its HOLD-enabled latching behavior, 5.0V/100mA regulated output under high-input-voltage transients, 4.625V RESET threshold, thermal shutdown at 160°C, and compatibility with AEC-Q100-compliant system designs.
Technical Context
The MAX6768TALD2+ implements a high-voltage linear regulator core with dual-control logic: ENABLE (active-high) initiates regulation, while HOLD (active-low) latches the output ON even after ENABLE is deasserted-enabling ignition-key-triggered self-holding without external components. Its supervisor block monitors OUT voltage against a factory-trimmed 4.625V reset threshold and asserts an open-drain RESET for a guaranteed 12.5ms timeout.
This variant belongs to the MAX6767/MAX6768 subfamily and excludes watchdog (WDI), RESETIN, or dual-enable inputs. It uses the SET pin internally tied to GND for fixed 5.0V operation and relies on TIMEOUT pin connected to OUT for the D2 (12.5ms) reset timeout-no external capacitor required. Thermal protection engages at +160°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 72V - supports full automotive battery range including load dump (80V abs max) and cold-crank conditions. |
| Output Voltage | 5.0V ±1.5% (4.925V–5.075V) - factory-trimmed fixed output; no external feedback required. |
| Max Output Current | 100mA - sufficient for MCU core rails, CAN transceivers, or sensor interfaces in compact modules. |
| Quiescent Current | 31µA typical - enables >10-year battery life in always-on telematics or alarm systems. |
| RESET Threshold | 4.625V (L-suffix) - asserts RESET when VOUT drops below this level, preventing microprocessor malfunction during brownout. |
| Reset Timeout | 12.5ms (D2 suffix) - fixed internal timeout ensures µP reset pulse meets minimum assertion time requirements per JEDEC JESD8-12. |
| Dropout Voltage | 620mV at 100mA - allows stable 5V output down to VIN = 5.62V, critical during engine cranking. |
| Operating Temp | -40°C to +125°C - fully specified across automotive under-hood temperature range. |
Pinout & Package
MAX6768TALD2+ is housed in a thermally enhanced 6-pin 3mm × 3mm TDFN-EP package (exposed pad soldered to PCB ground plane), rated for 1.951W continuous dissipation at TA ≤ +70°C with 23.8mW/°C derating above.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Regulator Input | Accepts 4V–72V unregulated supply; requires ≥0.1µF ceramic bypass to GND close to pin. |
| 2 GND | Ground Reference | Primary return path for regulator, RESET, and logic; connects internally to exposed pad (EP). |
| 3 ENABLE | Active-High Enable | Drives regulator ON when pulled ≥1.4V; internally pulled down (0.6µA) to GND when floating. |
| 4 RESET | Active-Low Open-Drain Reset Output | Sinks up to 3.2mA; requires external pullup to host rail (e.g., 5V or 3.3V); asserts low during brownout or startup. |
| 5 TIMEOUT | Reset Timeout Configuration | Internally connected to OUT for D2 (12.5ms) fixed timeout; leave unconnected if not used for adjustable timing. |
| 6 OUT | Regulated Output | Delivers 5.0V @ up to 100mA; requires ≥10µF ceramic output capacitor with low ESR for stability. |
Key Features
| Feature | Design Value |
|---|---|
| HOLD-Enabled Self-Holding | Enables latch-on behavior: after ENABLE triggers startup, pulling HOLD low maintains regulation even if ENABLE returns low-eliminates need for external latch circuitry in ignition-switched systems. |
| Ultra-Low Quiescent Current | 31µA typical supply current at zero load preserves battery charge in always-on automotive ECUs, telematics, and ADAS sensors. |
| High-Voltage Input Tolerance | 72V max operating input withstands ISO 7637-2 Pulse 5a (load dump) up to 80V transient (abs max), reducing need for upstream TVS clamping. |
| Integrated Thermal Protection | Shuts down at +160°C junction temperature with 20°C hysteresis, enabling safe operation in sealed enclosures or high-ambient under-hood locations. |
| AEC-Q100 Qualified | Qualified per AEC-Q100 Rev H Grade 0 (−40°C to +125°C), meeting stress test requirements for automotive safety-critical power rails. |
| Fixed 5.0V Output Accuracy | ±1.5% over full temperature/load range ensures reliable powering of 5V microcontrollers, LIN transceivers, and analog front-ends without trimming. |
Applications
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
|---|---|
|
Use Scenario: Powering microcontroller, CAN/LIN transceivers, and door-lock actuators in vehicle body electronics with ignition-controlled wake-up. IC Role / Device Role / Timing Role: Primary 5V always-on regulator with HOLD-latched enable, providing clean, brownout-protected supply during key-off monitoring and key-on transition. Use Value: Eliminates external latching circuitry; 31µA quiescent current extends battery life beyond 10 years in sleep mode; 4.625V RESET prevents MCU lockup during battery sag. |
Use Scenario: Supplying GPS/GNSS receiver, cellular modem, and secure boot processor in connected vehicle platforms requiring persistent network connectivity. IC Role / Device Role / Timing Role: Always-on 5V regulator with self-holding behavior triggered by ignition signal, maintaining power during brief battery interruptions during engine start. Use Value: 12.5ms RESET pulse ensures reliable µP reset after brownout recovery; 72V input tolerance handles alternator transients without additional protection. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Automotive Infotainment Head Unit |
|
Use Scenario: Powering image sensor interface, ISP, and real-time video encoder in rear-view or surround-view camera modules mounted near engine bay. IC Role / Device Role / Timing Role: High-temp-stable 5V regulator with thermal shutdown at 160°C, delivering regulated supply under sustained +105°C ambient conditions. Use Value: 1.951W thermal capability in 3×3mm TDFN-EP enables compact layout; -40°C to +125°C rating ensures reliability in extreme under-hood environments. |
Use Scenario: Providing auxiliary 5V rail for touch controller, audio codec, and display backlight driver in head units with soft-power-down functionality. IC Role / Device Role / Timing Role: Supervisor-integrated regulator generating precise 5.0V output and asserting RESET during power sequencing to coordinate multi-rail startup. Use Value: Factory-trimmed 4.625V RESET threshold aligns with common µP reset specs; open-drain RESET simplifies level-shifting to diverse host logic voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive linear regulator with supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6767TALD2+ | Identical pinout, electrical specs, and D2 timeout; differs only in marking-MAX6767 is base part number, MAX6768 includes HOLD function explicitly in naming but both share same die and functionality. | No functional difference; MAX6767TALD2+ is the canonical ordering part for this configuration. | Select MAX6767TALD2+ for standard procurement; MAX6768TALD2+ may reflect legacy or distributor-specific labeling but is electrically identical. |
| TPS7B8750QKVURQ1 | 5.0V fixed output, 150mA, 35µA IQ, 4V–40V input, integrated watchdog, but lacks HOLD input and uses push-pull RESET instead of open-drain. | Requires external latch circuit for self-holding; suitable where watchdog supervision is mandatory but HOLD functionality is not needed. | Choose only if watchdog timer (50ms/1.6s) is required and HOLD is unnecessary; not drop-in due to different pinout, lower VIN max, and no HOLD support. |
Compared with MAX6767TALD2+, the MAX6768TALD2+ shares identical silicon and performance-differing only in part-numbering convention-while the TPS7B8750QKVURQ1 offers higher current and watchdog but sacrifices HOLD latching and high-voltage resilience, making it unsuitable for direct replacement in ignition-latched 72V systems.
Availability
MAX6768TALD2+ is available at Aetrix Electronics and suitable for automotive body control modules, telematics units, ADAS camera ECUs, and infotainment systems requiring stable component supply with AEC-Q100 qualification, high-voltage tolerance, and ultra-low quiescent current.
Supply support for MAX6768TALD2+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX6765–MAX6774B family was designed specifically for automotive micropower linear regulation with integrated power-supply supervision-targeting always-on modules needing robust brownout detection, latch-on enable schemes, and extended temperature operation.
FAQ
What is the function of the HOLD pin on the MAX6768TALD2+?
The HOLD pin on the MAX6768TALD2+ is an active-low input that enables self-holding behavior: after ENABLE turns the regulator ON, pulling HOLD low latches the output ON even if ENABLE subsequently goes low. Releasing HOLD (pulling high or leaving unconnected) shuts down the regulator. This eliminates external latch components in ignition-switched automotive systems and is a defining feature of the MAX6768TALD2+ within the MAX6765–MAX6774B family.
Does the MAX6768TALD2+ include a watchdog timer?
No, the MAX6768TALD2+ does not include a watchdog timer. Watchdog functionality is exclusive to the MAX6773/MAX6773B/MAX6774/MAX6774B variants (identified by WDI pin). The MAX6768TALD2+ belongs to the MAX6767/MAX6768 subfamily, which provides HOLD/ENABLE dual-control logic and supervisor functions (RESET with fixed timeout) but omits watchdog input and related circuitry.
What is the RESET output type and drive capability of the MAX6768TALD2+?
The MAX6768TALD2+ features an active-low open-drain RESET output capable of sinking up to 3.2mA at 0.4V. It requires an external pullup resistor to the host logic rail (e.g., 3.3V or 5V). This configuration allows flexible voltage-level interfacing and wired-OR reset bus configurations. The RESET asserts when VOUT falls below 4.625V and remains low for exactly 12.5ms (D2 timeout) after VOUT recovers above threshold.
How is the 12.5ms reset timeout implemented on the MAX6768TALD2+?
The 12.5ms reset timeout (D2 suffix) on the MAX6768TALD2+ is implemented internally-no external capacitor is required. The TIMEOUT pin is internally configured to connect to the OUT pin, selecting the factory-trimmed D2 timeout value. Connecting TIMEOUT to GND or leaving it floating disables the internal timeout and may result in undefined RESET behavior; for D2 operation, TIMEOUT must remain unconnected or tied to OUT per datasheet guidance.
Is the MAX6768TALD2+ AEC-Q100 qualified?
Yes, the MAX6768TALD2+ is AEC-Q100 qualified. It is explicitly listed among the AEC-Q100 qualified variants in the datasheet (MAX6765TT_D_/V+, MAX6767TA_D_/V+, MAX6769TA_D_/V+, MAX6773TA_D_/V+, MAX6773BTA_D_/V+), and the "/V+" suffix in its part number denotes automotive qualification. It is tested and specified across the full −40°C to +125°C operating temperature range per AEC-Q100 Rev H Grade 0 requirements.
MAX6768TALD2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.625V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 8.75ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (3x3)
MAX6768TALD2+ FAQ
1.How can I place an order for MAX6768TALD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6768TALD2+ 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 MAX6768TALD2+ reliable?
The price and inventory of MAX6768TALD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6768TALD2+ is usually 5 days.
3.What payment methods are accepted for MAX6768TALD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6768TALD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6768TALD2+?
MAX6768TALD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6768TALD2+ 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 MAX6768TALD2+?
For technical support, including MAX6768TALD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6768TALD2+ requirements.
6.How does Aetrix verify that MAX6768TALD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6768TALD2+ 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 MAX6768TALD2+ meets industry standards.
7.What is the process for return or replacement of MAX6768TALD2+?
All MAX6768TALD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6768TALD2+, 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 MAX6768TALD2+ part is unused and in its original packaging.
Return procedure for MAX6768TALD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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