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Analog Devices Inc./Maxim Integrated MAX6770TAVD2+T
- Part No.:
- MAX6770TAVD2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
MAX6770TAVD2+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,746
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Product details
Overview
MAX6770TAVD2+T from Maxim Integrated is an automotive-grade micropower linear regulator with integrated supervisor, delivering 5.0V at up to 100mA from 4V–72V input. It features active-low open-drain RESET output, 12.5ms fixed reset timeout (D2 suffix), and operates across –40°C to +125°C - designed for always-on vehicle modules such as body control units and infotainment power rails.
For engineers reviewing the MAX6770TAVD2+T datasheet, MAX6770TAVD2+T pinout, MAX6770TAVD2+T application, or MAX6770TAVD2+T equivalent, key selection criteria include its 31µA quiescent current, 620mV dropout at 100mA/5V, AEC-Q100 qualification, and compatibility with high-ambient automotive environments requiring robust brownout supervision.
Technical Context
The MAX6770TAVD2+T implements a single active-high ENABLE input (Pin 3) and fixed 5.0V output (L-suffix), with RESET asserted when OUT falls below 4.625V (L-threshold). Its internal reset timeout is set to 12.5ms via D2-coded TIMEOUT pin configuration - no external capacitor required.
This device belongs to the MAX6765–MAX6774B family's "single-enable" subgroup (MAX6765/MAX6766/MAX6769/MAX6770/MAX6773/MAX6773B/MAX6774/MAX6774B) and lacks watchdog (WDI), HOLD, RESETIN, or dual-enable functionality - distinguishing it from MAX6773 or MAX6767 variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 72V - supports full automotive battery range including load dump (up to 80V absolute max). |
| Output Voltage | Fixed 5.0V ±1.5% (4.925V–5.150V) - stable for MCU core/logic supply in harsh environments. |
| Max Output Current | 100mA continuous - sufficient for low-power microcontrollers, sensors, and CAN transceivers. |
| Quiescent Current | 31µA typical at no load - enables >10-year battery life in always-on automotive modules. |
| Dropout Voltage | 620mV at 100mA/5V - ensures regulation down to VIN = 5.62V, critical during cold-crank conditions. |
| Reset Threshold | 4.625V (L-option) - triggers RESET before 5V rail collapse affects µP operation. |
| Reset Timeout | 12.5ms (D2 option) - guarantees clean µP reset hold time after voltage recovery. |
Pinout & Package
MAX6770TAVD2+T uses a thermally enhanced 6-pin TDFN-EP package (3mm × 3mm, package code T633+2), with exposed pad (EP) internally connected to GND for optimal thermal dissipation (θJA = 42°C/W on multilayer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Regulator Input | Bypassed to GND with ≥0.1µF capacitor; withstands 80V transient per absolute max rating. |
| 2 - GND | Ground Reference | Power and signal return; EP must be soldered to PCB ground plane for thermal performance. |
| 3 - ENABLE | Active-High Enable | Pulled low internally (0.6µA sink); requires ≥1.4V to activate regulator - compatible with 3.3V/5V logic. |
| 4 - RESET | Active-Low Open-Drain Output | Sinks 3.2mA max; requires external pull-up; asserts during undervoltage and holds for 12.5ms post-recovery. |
| 5 - TIMEOUT | Reset Timeout Configuration | Internally tied to OUT for D2 (12.5ms); no external capacitor needed - simplifies layout. |
| 6 - OUT | Regulated 5.0V Output | Bypassed to GND with ≥10µF capacitor; includes overtemperature and short-circuit protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Rated for automotive applications (-40°C to +125°C junction), meeting stress test requirements for reliability in vehicle systems. |
| Thermal Protection | Shuts down at +160°C (typ) with 20°C hysteresis - prevents damage during sustained overload or high ambient conditions. |
| Low Dropout Performance | 620mV dropout at full 100mA load enables operation during 6V cold-crank events without reset assertion. |
| Integrated Supervisor Logic | Monitors own output voltage and asserts RESET with precise 4.625V threshold and guaranteed 12.5ms timeout - eliminates need for discrete supervisor IC. |
| Robust Input Transient Handling | Withstands -0.3V to +80V on IN pin - protects against reverse-battery, load-dump, and jump-start surges. |
Applications
| Body Control Module (BCM) | Infotainment Power Rail |
|---|---|
Use Scenario: Powers microcontroller and CAN transceiver in door module or lighting controller, operating continuously from vehicle battery. IC Role / Device Role / Timing Role: Primary 5V LDO regulator with built-in reset supervision - ensures deterministic µP boot after ignition cycle or brownout. Use Value: 31µA quiescent current prevents parasitic drain; 12.5ms RESET hold time meets ISO 16750-2 cold-crank recovery timing requirements. |
Use Scenario: Supplies 5V to audio DSP and display interface in head unit, surviving engine start transients. IC Role / Device Role / Timing Role: High-voltage input LDO with integrated brownout detection - replaces discrete regulator + reset IC combo. Use Value: 72V input range accommodates 24V commercial vehicle systems; 620mV dropout maintains regulation during 6V cranking dips. |
| Telematics Control Unit (TCU) | ADAS Camera Power Management |
Use Scenario: Provides always-on 5V supply to cellular modem and GNSS receiver in fleet tracking device. IC Role / Device Role / Timing Role: Supervised LDO enabling wake-on-event while maintaining low sleep current. Use Value: AEC-Q100 qualification ensures long-term reliability in high-temp dashboard mounting; ENABLE pin allows controlled power sequencing. |
Use Scenario: Powers image sensor and serializer in rear-view camera, requiring stable 5V under vibration and temperature cycling. IC Role / Device Role / Timing Role: Automotive-grade LDO with precise reset threshold - prevents corrupted frame capture during voltage sags. Use Value: 4.625V RESET threshold aligns with 5V µP reset specs; thermal shutdown protects against enclosure overheating. |
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 |
|---|---|---|---|
| MAX6770TAVD4+T | Same 5V/100mA regulator, but with 200ms reset timeout (D4) instead of 12.5ms (D2). | Suitable for systems requiring longer reset hold time during slow-rising supplies or legacy µP reset timing. | Select only if 200ms timeout is explicitly required; otherwise MAX6770TAVD2+T offers faster recovery. |
| MAX6765TTLD4+T | Same 5V/100mA regulator, but uses TDFN-6 package with different pinout (RESET on Pin 4 vs. Pin 4 on MAX6770) and no HOLD/WDI pins - functionally identical supervisor behavior. | Drop-in replacement in footprint-compatible designs; same L/D4 coding (5V/4.625V/200ms) but not pin-to-pin with MAX6770TAVD2+T due to ENABLE placement. | Verify PCB layout compatibility; MAX6765TTLD4+T is viable where 200ms timeout is acceptable and pin 3 is ENABLE. |
Compared with MAX6770TAVD2+T, MAX6770TAVD4+T extends reset hold time for slower systems, while MAX6765TTLD4+T offers identical regulation but differs in timeout and pin assignment - neither is pin-compatible, requiring layout review for substitution.
Availability
MAX6770TAVD2+T is available at Aetrix Electronics and suitable for automotive body electronics, industrial telemetry, and telecom remote power applications requiring stable component supply, AEC-Q100 compliance, and ultra-low quiescent current.
Supply support for MAX6770TAVD2+T 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 precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.
The MAX6765–MAX6774B product line delivers high-voltage, micropower linear regulators with integrated supervision - engineered specifically for automotive always-on modules needing reliable, low-IQ power with deterministic reset behavior.
FAQ
What is the reset threshold voltage for MAX6770TAVD2+T?
The MAX6770TAVD2+T has a fixed reset threshold of 4.625V (L-option), meaning the active-low RESET output asserts when the regulated 5.0V output falls below this value. This threshold is factory-trimmed and guaranteed over –40°C to +125°C. The MAX6770TAVD2+T does not support adjustable reset thresholds via RESETIN - that feature is exclusive to MAX6769/MAX6770 variants with different suffixes.
Does MAX6770TAVD2+T include a watchdog timer?
No, MAX6770TAVD2+T does not include a watchdog timer. Watchdog functionality (WDI input and timeout monitoring) is only present in MAX6773/MAX6773B/MAX6774/MAX6774B variants. The MAX6770TAVD2+T belongs to the single-enable subgroup without WDI, HOLD, or RESETIN pins - confirmed by its pin configuration (ENABLE on Pin 3, no WDI pin assigned).
What package type and thermal performance does MAX6770TAVD2+T use?
MAX6770TAVD2+T uses a 6-pin TDFN-EP package (3mm × 3mm, outline 21-0137) with exposed pad connected to GND. On a multilayer PCB, its thermal resistance is θJA = 42°C/W and θJC = 9°C/W, enabling 1.951W power dissipation - sufficient for 100mA at 72V input with proper copper area under the EP.
Is MAX6770TAVD2+T AEC-Q100 qualified?
Yes, MAX6770TAVD2+T is AEC-Q100 qualified. The "/V+" suffix in the part number denotes automotive qualification, and the device is explicitly listed among AEC-Q100 qualified variants (MAX6770TA_D_/V+) in the datasheet's Ordering Information table. It is fully specified from –40°C to +125°C and includes automotive-grade stress testing.
How is the 12.5ms reset timeout implemented on MAX6770TAVD2+T?
The 12.5ms reset timeout (D2 option) is implemented internally - the TIMEOUT pin (Pin 5) is internally connected to OUT, eliminating the need for an external capacitor. This is defined by the "D2" suffix in MAX6770TAVD2+T and verified in Table 1 of the datasheet. Unlike adjustable timeout versions, no external component is required for this timing value.
MAX6770TAVD2+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.085V, 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)
MAX6770TAVD2+T FAQ
1.How can I place an order for MAX6770TAVD2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6770TAVD2+T 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 MAX6770TAVD2+T reliable?
The price and inventory of MAX6770TAVD2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6770TAVD2+T is usually 5 days.
3.What payment methods are accepted for MAX6770TAVD2+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6770TAVD2+T transactions.
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4.How is shipping managed for MAX6770TAVD2+T?
MAX6770TAVD2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6770TAVD2+T 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 MAX6770TAVD2+T?
For technical support, including MAX6770TAVD2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6770TAVD2+T requirements.
6.How does Aetrix verify that MAX6770TAVD2+T is sourced from the original manufacturer or authorized distributors?
All MAX6770TAVD2+T 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 MAX6770TAVD2+T meets industry standards.
7.What is the process for return or replacement of MAX6770TAVD2+T?
All MAX6770TAVD2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6770TAVD2+T, 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 MAX6770TAVD2+T part is unused and in its original packaging.
Return procedure for MAX6770TAVD2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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