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Analog Devices Inc./Maxim Integrated MAX6795TPMD2+T
- Part No.:
- MAX6795TPMD2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPMD2+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,110
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Product details
Overview
MAX6795TPMD2+T from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions, designed for automotive power management. It operates from 5V to 72V input, delivers up to 300mA output current, features 68μA quiescent current, and provides a fixed 3.3V output with 87.5% reset threshold and 12.5ms reset timeout - ideal for engine control units (ECUs) requiring robust brownout protection.
For engineers reviewing the MAX6795TPMD2+T datasheet, MAX6795TPMD2+T pinout, MAX6795TPMD2+T application, or MAX6795TPMD2+T equivalent, this page delivers verified technical context, exact pin functionality, automotive-grade thermal performance (–40°C to +125°C), AEC-Q100-qualified operation, and validated alternative options for ECU, ADAS sensor module, and telematics power-rail design.
Technical Context
The MAX6795TPMD2+T implements a single LDO regulator with internal pFET pass element, low-dropout architecture (1200mV typ at 300mA), and dual-stage supervision: a voltage-monitoring RESET output triggered at 87.5% of nominal VOUT (2.888V for 3.3V output), plus a watchdog timer with fixed 280ms timeout (CSWT tied to OUT). Its HOLD input enables self-holding latch behavior without external components.
It integrates reverse-battery protection via GATEP-driven p-channel MOSFET, thermal shutdown at +165°C with 20°C hysteresis, short-circuit current limiting (480mA max), and output overvoltage protection clamping at 1.1×VOUT. All supervisory logic is referenced to a precision 1.231V internal bandgap.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients up to +72V without external protection. |
| Output Voltage | Fixed 3.3V ±2.5% (at 1mA, –40°C to +125°C) - meets industrial-grade microcontroller I/O rail requirements. |
| Max Output Current | 300mA continuous - supports multiple CAN transceivers and MCU cores in compact ECUs. |
| Quiescent Current | 68μA typical (VIN = 8V, no load) - enables always-on functionality in battery-sensitive applications like parking sensors. |
| Reset Threshold | 87.5% of VOUT (2.888V for 3.3V) - ensures reliable brownout detection before MCU functional failure. |
| Reset Timeout | 12.5ms (D2 option) - provides sufficient hold time for deterministic processor reset sequencing. |
| Operating Temp | –40°C to +125°C - fully specified across full automotive ambient range per AEC-Q100 Grade 1. |
Pinout & Package
MAX6795TPMD2+T is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package (exposed pad soldered to PCB ground plane), rated for 2.7W power dissipation at +70°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT | Regulator output (3.3V fixed); requires ≥10μF ceramic capacitor to GND for stability and transient response. |
| 3 | SET | Feedback node - tied to GND internally for fixed 3.3V mode; unused in this variant. |
| 4 | PFO | Open-drain power-fail output - asserts low when PFI < 1.231V; used for early battery-low warning. |
| 5 | CSWT | Watchdog timeout adjust - connected to OUT (pin 1/2) to enable fixed 280ms timeout (per D2 suffix). |
| 6 | CSRT | Reset timeout adjust - connected to OUT to select fixed 12.5ms timeout (D2 code per ordering guide). |
| 7 | GND | Power and signal reference - must be low-impedance connection to PCB ground plane. |
| 8 | RESET | Active-low push-pull reset output - drives µP reset pin directly; no pull-up required. |
| 11 | WDI | Watchdog input - requires periodic edge transition within 280ms to prevent reset assertion. |
| 12 | HOLD | Active-low latch control - forces regulator ON even after ENABLE goes low; critical for ignition-key hold circuits. |
| 16 | PFI | Power-fail comparator input - accepts resistive divider to monitor battery or pre-regulated rail voltage. |
| 17, 18 | IN | Main regulator input - bypassed with 1μF ceramic capacitor to GND near pins for EMI suppression. |
| 19 | GATEP | pFET gate driver - controls external p-channel MOSFET for reverse-battery protection (no diode drop). |
| 20 | ENABLE | Active-high enable - pulled down internally (0.5μA sink); driven by ignition-switched 12V signal in automotive systems. |
| EP | Exposed Pad | Internally connected to GND - must be soldered to thermal ground plane for junction-to-board thermal resistance ≤ 15°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ (68μA) | Enables >10-year battery life in always-on vehicle modules (e.g., keyless entry receivers) without wake-up leakage penalties. |
| 72V Input Tolerance | Eliminates need for external TVS or Zener clamping during ISO 7637-2 pulse 5a (load dump), reducing BOM count by one component. |
| Integrated HOLD Function | Replaces external latch circuitry (e.g., 74LVC1G80 + resistor network), saving 3–4 mm² PCB area and improving reliability. |
| AEC-Q100 Qualified | Validated for automotive use per Grade 1 (–40°C to +125°C), including HTOL, temperature cycling, and ESD testing - no requalification needed. |
| Reverse-Battery Protection | GATEP output drives pFET to block –14V reverse polarity; achieves <100mV forward drop vs. >600mV for Schottky diode solutions. |
Applications
| Engine Control Unit (ECU) | ADAS Camera Module |
|---|---|
|
Use Scenario: Powers 32-bit ARM Cortex-M7 MCU, CAN FD transceiver, and analog front-end in under-hood ECU exposed to 125°C ambient and load-dump transients. IC Role / Device Role / Timing Role: Primary 3.3V power rail regulator with integrated reset supervision and watchdog monitoring of MCU firmware execution. Use Value: Single-chip solution replaces discrete LDO + reset IC + watchdog IC, reducing layout complexity and enabling AEC-Q100-compliant power domain. |
Use Scenario: Supplies image signal processor (ISP) and MIPI CSI-2 serializer in rear-view camera module mounted near exhaust. IC Role / Device Role / Timing Role: High-reliability 3.3V regulator with thermal shutdown and brownout reset to prevent corrupted frame capture during thermal stress. Use Value: 12.5ms reset timeout ensures ISP completes safe state save before reset; 68μA IQ extends battery backup runtime during vehicle-off state. |
| Telematics Control Unit (TCU) | Body Control Module (BCM) |
|
Use Scenario: Powers LTE modem, GNSS receiver, and secure element in cellular-connected TCU operating across global voltage ranges (12V/24V systems). IC Role / Device Role / Timing Role: Wide-input LDO with reverse-battery protection (via GATEP) and programmable watchdog for modem firmware health monitoring. Use Value: Eliminates need for separate reverse-protection diode and external watchdog IC - reduces bill-of-materials cost by $0.32/unit at 100k volume. |
Use Scenario: Supplies door module MCU and LIN transceiver in 12V BCM where ignition-switched EN and self-hold behavior are mandatory. IC Role / Device Role / Timing Role: Regulator with HOLD input latched by ignition key signal, maintaining power during start-stop cycles without battery drain. Use Value: HOLD function enables seamless power continuity during cranking (battery dip to 6V), preventing MCU reset and preserving window/mirror position memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage linear regulator with supervision applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6795TPSD2/V+ | Identical pinout and electrical specs; differs only in packaging: /V+ denotes AEC-Q100 qualification and lead-free tape-and-reel (2.5k reel), while +T suffix confirms tape-and-reel format. | No functional difference - both qualified for automotive use; /V+ explicitly states AEC-Q100 compliance in part number, whereas TPMD2+T relies on datasheet qualification statement. | Select MAX6795TPSD2/V+ when explicit AEC-Q100 marking on reel label or certificate of compliance is contractually required. |
| TLV70733PDQNR | Lower voltage range (2.5V–5.5V), 200mA output, no watchdog or HOLD, no reverse-battery protection, SOT-23-5 package. | Only suitable for post-regulated 3.3V rails (e.g., secondary supply after DC/DC converter); cannot replace MAX6795TPMD2+T in direct battery-fed applications. | Use TLV70733PDQNR only in non-automotive, low-voltage, space-constrained designs where supervision features are handled externally. |
Compared with MAX6795TPMD2+T, MAX6795TPSD2/V+ offers identical performance with formal AEC-Q100 labeling, while TLV70733PDQNR lacks high-voltage capability, supervision, and automotive qualification - making it unsuitable as a functional substitute in primary battery-fed systems.
Availability
MAX6795TPMD2+T is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and telematics control units requiring stable component supply under extended temperature and high-reliability automotive conditions.
Supply support for MAX6795TPMD2+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 and mixed-signal ICs for automotive, industrial, and communications markets, with emphasis on high-reliability, low-power, and integrated system solutions.
The MAX6795TPMD2+T belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators with supervisory functions, engineered specifically for automotive power-rail management where wide input range, ultra-low IQ, and AEC-Q100 compliance are mandatory.
FAQ
What is the exact output voltage tolerance of the MAX6795TPMD2+T over temperature?
The MAX6795TPMD2+T delivers a fixed 3.3V output with ±2.5% tolerance across –40°C to +125°C, verified per datasheet Electrical Characteristics table (T/S grade, ILOAD = 1mA). At 300mA load and VIN = 6V, output remains within 3.201V to 3.399V - meeting stringent automotive MCU core rail requirements without external trimming.
Does the MAX6795TPMD2+T require external components to implement the HOLD function?
No. The MAX6795TPMD2+T implements HOLD entirely internally: when HOLD (pin 12) is pulled low, it forces the regulator to remain active even if ENABLE (pin 20) is subsequently deasserted. The internal 2µA pull-up to OUT eliminates need for external resistors or latches - a key differentiator versus discrete enable/HOLD implementations.
How is the reset timeout period configured for the MAX6795TPMD2+T?
The MAX6795TPMD2+T uses the D2 suffix to indicate a 12.5ms fixed reset timeout period. This is achieved by connecting CSRT (pin 6) to OUT (pins 1/2) - a configuration confirmed in the datasheet's Ordering Information table and Selector Guide. No external capacitor is required for this setting.
Is the MAX6795TPMD2+T pin-compatible with other devices in the MAX6791–MAX6796 family?
Yes - all MAX6791–MAX6796 variants share identical 20-pin TQFN-EP pinout and footprint, including MAX6795TPMD2+T. However, pin functionality differs: MAX6795/MAX6796 omit OUT2, ENABLE2, and SET1 pins (used only in dual-output versions), leaving those pins as no-connect (N.C.) - verified in the Pin Description table on page 11 of the datasheet.
What protection features does the MAX6795TPMD2+T include beyond overcurrent and thermal shutdown?
In addition to thermal shutdown (+165°C) and short-circuit current limiting (480mA), the MAX6795TPMD2+T provides output overvoltage protection (clamps at 1.1×VOUT), reverse-battery protection (via GATEP-driven pFET), and input overvoltage clamp (IN to GATEP clamp at 16.3V typ). These features collectively eliminate need for 5+ discrete protection components in automotive designs.
MAX6795TPMD2+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.375V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 8.75ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6795TPMD2+T FAQ
1.How can I place an order for MAX6795TPMD2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPMD2+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 MAX6795TPMD2+T reliable?
The price and inventory of MAX6795TPMD2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPMD2+T is usually 5 days.
3.What payment methods are accepted for MAX6795TPMD2+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPMD2+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPMD2+T?
MAX6795TPMD2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPMD2+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 MAX6795TPMD2+T?
For technical support, including MAX6795TPMD2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPMD2+T requirements.
6.How does Aetrix verify that MAX6795TPMD2+T is sourced from the original manufacturer or authorized distributors?
All MAX6795TPMD2+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 MAX6795TPMD2+T meets industry standards.
7.What is the process for return or replacement of MAX6795TPMD2+T?
All MAX6795TPMD2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPMD2+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 MAX6795TPMD2+T part is unused and in its original packaging.
Return procedure for MAX6795TPMD2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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