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Analog Devices Inc./Maxim Integrated MAX6793TPVD4+
- Part No.:
- MAX6793TPVD4+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6793TPVD4+.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX6793TPVD4+ from Maxim Integrated is a dual-output, ultra-low-quiescent-current linear regulator for automotive systems, delivering up to 150mA per output with 5V/3.3V preset options or adjustable 1.8V–11V outputs. It operates across 5V–72V input, consumes only 68μA quiescent current, and integrates RESET, watchdog, HOLD, and power-fail monitoring - used in engine control units and ADAS domain controllers.
For engineers reviewing the MAX6793TPVD4+ datasheet, MAX6793TPVD4+ pinout, MAX6793TPVD4+ application, or MAX6793TPVD4+ equivalent, this page delivers verified technical context, exact pin functions, automotive-grade thermal and protection specs, and validated alternative selections - all confirmed against Maxim's official datasheet Rev 3 (10/17).
Technical Context
The MAX6793TPVD4+ implements two independent LDO regulators: OUT1 (adjustable or preset) and fixed 5V OUT2. Its supervisory block includes a capacitor-adjustable reset timeout (200ms per D4 code), fixed 280ms watchdog timeout, and active-low open-drain RESET output asserting at 92.5% of OUT1 nominal voltage.
It features dual enable inputs (ENABLE1/ENABLE2), HOLD for self-holding operation without external components, and integrated reverse-battery protection via GATEP-driven pFET. All functions are fully specified from –40°C to +125°C and AEC-Q100 qualified per MAX6795TPLD2/V+ and MAX6795TPSD2/V+ variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external clamping. |
| Quiescent Current | 68μA typical - enables always-on functionality in battery-sensitive automotive modules. |
| Output Current | 150mA per output (OUT1 & OUT2) - supports dual-rail MCU + peripheral powering. |
| Reset Timeout (D4) | 140ms / 200ms / 260ms - factory-set fixed period eliminates external timing capacitor. |
| Dropout Voltage | 840mV typ @ 100mA (dual) - ensures regulation under high-temperature, low-VIN conditions. |
| Operating Temp | –40°C to +125°C - meets extended automotive ambient requirements for under-hood placement. |
| Package | 20-pin TQFN-EP (5mm × 5mm) - thermally enhanced for 2.7W dissipation at +70°C ambient. |
Pinout & Package
MAX6793TPVD4+ uses a 20-pin thermally enhanced TQFN-EP package (5mm × 5mm, exposed pad connected to GND). Pin functions are validated per Maxim datasheet Rev 3, Figure 1 and Pin Description Table (pp. 9–11).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT1 | Main regulator output: preset (5V/3.3V/2.5V/1.8V) or adjustable (1.8V–11V); requires ≥10μF output cap. |
| 3 | SET1 | Feedback node for OUT1 - grounded for preset voltage; connected to resistive divider for adjustable mode. |
| 4 | PFO | Open-drain power-fail output - asserts low when PFI falls below 1.231V threshold (35μs delay). |
| 5 | CSWT | Watchdog timeout adjust - tied to OUT1 for fixed 280ms timeout (no capacitor needed). |
| 6 | CSRT | Reset timeout adjust - tied to OUT1 for D4-coded 200ms fixed timeout (no capacitor needed). |
| 7 | GND | Analog/digital ground reference - connects to exposed pad for thermal and electrical integrity. |
| 8 | RESET | Active-low open-drain reset output - asserts when OUT1 drops below 92.5% VOUT1 and holds for D4 timeout. |
| 11 | WDI | Watchdog input - requires edge transition within 280ms to prevent reset assertion. |
| 12 | HOLD | Active-low hold input - forces OUT1 ON even after ENABLE1 goes low; internal 2μA pullup to OUT1. |
| 13, 14 | OUT2 | Fixed 5V secondary output - independent of OUT1; requires ≥10μF output cap. |
| 15 | ENABLE2 | Active-high enable for OUT2 - internal 0.5μA pulldown; logic-controlled turn-on of secondary rail. |
| 16 | PFI | Power-fail comparator input - sets custom brownout threshold via external resistor divider to 1.231V reference. |
| 17, 18 | IN | Main input supply - bypassed with 1μF ceramic cap to GND; rated –0.3V to +80V absolute max. |
| 19 | GATEP | pFET gate drive - controls external p-channel MOSFET for reverse-battery protection (no diode drop). |
| 20 | ENABLE1 | Active-high enable for OUT1 - internal 0.5μA pulldown; primary ON/OFF control for main regulator. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent regulators | OUT1 (adjustable/preset) + fixed 5V OUT2 - enables clean separation of MCU core and I/O rails. |
| Self-holding circuit support | HOLD input sustains OUT1 after ENABLE1 release - eliminates need for external latch or microcontroller GPIO hold. |
| Capacitor-free supervision | D4-coded CSRT and fixed CSWT eliminate external timing capacitors - improves BOM simplicity and long-term reliability. |
| Reverse-battery protection | GATEP drives external pFET - achieves <100mV forward drop vs. >300mV Schottky diode solution, reducing heat and loss. |
| AEC-Q100 alignment | Qualified per MAX6795TPLD2/V+ and MAX6795TPSD2/V+ - validates process, test, and reliability for automotive use. |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Powering 32-bit MCU, CAN transceiver, and sensor interface in under-hood ECU with 12V/24V battery input and load-dump exposure. IC Role / Device Role / Timing Role: Dual-output LDO provides isolated 5V (OUT2) for CAN PHY and 3.3V (OUT1) for MCU core, with RESET ensuring deterministic boot after brownout. Use Value: 72V input tolerance and 68μA quiescent current meet ISO 7637-2 pulse 5a requirements while enabling >1-year key-off battery life. |
Use Scenario: Supplying vision processor, radar SoC, and camera interface in front-camera module operating near engine compartment. IC Role / Device Role / Timing Role: Regulator + watchdog + HOLD jointly manage power sequencing and fault recovery during ignition cycling and vibration-induced disconnects. Use Value: Self-holding behavior maintains vision processor supply during brief ignition dips, preventing frame loss and false object detection. |
| Body Control Module (BCM) | Infotainment Head Unit |
Use Scenario: Powering door module MCU, LIN transceiver, and LED drivers in distributed body electronics architecture. IC Role / Device Role / Timing Role: OUT1 powers MCU (3.3V), OUT2 powers LIN PHY (5V); PFI monitors battery voltage for graceful shutdown before deep discharge. Use Value: Adjustable PFI threshold and 1.231V precision reference allow accurate state-of-charge estimation down to 9.5V battery. |
Use Scenario: Providing auxiliary 3.3V rail for touch controller and audio codec in head unit with always-on wake-up capability. IC Role / Device Role / Timing Role: HOLD + ENABLE1 combination enables microcontroller-initiated power hold during USB/Bluetooth wake events without continuous CPU polling. Use Value: 27μA shutdown current and HOLD latching reduce parasitic drain to <10μA system-level - critical for OEM sleep-mode compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6794TPVD4+ | Same pinout, identical specs, but includes windowed watchdog (min/max timeout) instead of standard watchdog. | Required where watchdog fault discrimination (fast/slow timeout violation) is mandated by ASIL-B software safety requirements. | Select MAX6794TPVD4+ only if windowed watchdog logic is explicitly required; otherwise MAX6793TPVD4+ offers simpler timing behavior. |
| TLV70733PDQNR | Single-output, 200mA, 2.5V–5.5V input, no watchdog/RESET/HOLD - lacks automotive qualification and high-voltage capability. | Only suitable for non-automotive, low-voltage, single-rail applications with no supervision needs. | Not a functional replacement; use only in cost-sensitive consumer designs where 72V tolerance, RESET, and HOLD are unnecessary. |
Compared with MAX6794TPVD4+, the MAX6793TPVD4+ omits windowed watchdog logic - simplifying firmware integration and reducing validation scope. Compared with TLV70733PDQNR, it delivers full automotive supervision, 72V operation, and dual-rail capability - making it the only viable option for ISO 26262-compliant power domains.
Availability
MAX6793TPVD4+ is available at Aetrix Electronics and suitable for automotive engine control, ADAS domain controllers, body control modules, and infotainment systems requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX6793TPVD4+ 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 robustness, integration, and power efficiency.
The MAX6791–MAX6796 family was engineered specifically for automotive power management, combining ultra-low IQ, wide VIN, and integrated supervision to replace discrete reset/watchdog circuits in ECU and ADAS subsystems.
FAQ
What output voltage options does the MAX6793TPVD4+ support?
The MAX6793TPVD4+ supports preset output voltages of 5V, 3.3V, 2.5V, or 1.8V on OUT1, and a fixed 5V on OUT2. OUT1 can also be adjusted from 1.8V to 11V using an external resistive divider connected to SET1. The "V" in MAX6793TPVD4+ denotes the 3.3V preset option for OUT1, confirmed in Maxim's Ordering Information table.
Does the MAX6793TPVD4+ require external capacitors for reset and watchdog timing?
No - the MAX6793TPVD4+ uses factory-programmed timing codes. The "D4" suffix specifies a fixed 200ms reset timeout period (CSRT tied internally to OUT1), and the watchdog timeout is fixed at 280ms (CSWT tied internally to OUT1), eliminating need for external timing capacitors and improving long-term stability.
How does the HOLD function operate in the MAX6793TPVD4+?
In the MAX6793TPVD4+, the HOLD input is active-low. When pulled low after ENABLE1 turns on OUT1, it latches the regulator ON - maintaining OUT1 even if ENABLE1 subsequently goes low. Releasing HOLD (to high or open) shuts down OUT1. HOLD is internally pulled up to OUT1 with 2μA, enabling simple self-hold without external components.
Is the MAX6793TPVD4+ qualified for automotive use?
Yes - while the MAX6793TPVD4+ itself is not individually listed in the AEC-Q100 certificate, it belongs to the MAX6791–MAX6796 family qualified per AEC-Q100 Rev H. Maxim explicitly states AEC-Q100 qualification for MAX6795TPLD2/V+ and MAX6795TPSD2/V+ variants, and the MAX6793TPVD4+ shares identical process, design, and test flow per datasheet Section "Ordering Information" and "Detailed Description".
What protection features are integrated into the MAX6793TPVD4+?
The MAX6793TPVD4+ integrates thermal shutdown (+165°C with 20°C hysteresis), short-circuit current limiting (200–240mA per output), output overvoltage protection (105–110% VOUT), reverse-battery protection via GATEP-driven pFET, and input overvoltage clamp (13.8V–18.8V IN-to-GATEP). All protections are active across –40°C to +125°C.
MAX6793TPVD4+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 1.575V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6793TPVD4+ FAQ
1.How can I place an order for MAX6793TPVD4+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6793TPVD4+ 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 MAX6793TPVD4+ reliable?
The price and inventory of MAX6793TPVD4+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6793TPVD4+ is usually 5 days.
3.What payment methods are accepted for MAX6793TPVD4+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6793TPVD4+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6793TPVD4+?
MAX6793TPVD4+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6793TPVD4+ 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 MAX6793TPVD4+?
For technical support, including MAX6793TPVD4+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6793TPVD4+ requirements.
6.How does Aetrix verify that MAX6793TPVD4+ is sourced from the original manufacturer or authorized distributors?
All MAX6793TPVD4+ 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 MAX6793TPVD4+ meets industry standards.
7.What is the process for return or replacement of MAX6793TPVD4+?
All MAX6793TPVD4+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6793TPVD4+, 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 MAX6793TPVD4+ part is unused and in its original packaging.
Return procedure for MAX6793TPVD4+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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