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Analog Devices Inc./Maxim Integrated MAX6795TPMD2+
- Part No.:
- MAX6795TPMD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPMD2+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
The MAX6795TPMD2+ from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions (RESET, watchdog, power-fail detection, and hold control), designed for automotive systems requiring robust operation under load-dump conditions. It delivers up to 300mA output current, supports 5V to 72V input range, features 68μA quiescent current, and provides fixed 5V output with 87.5% reset threshold and 12.5ms reset timeout - used in engine control units and ADAS domain controllers.
For engineers reviewing the MAX6795TPMD2+ datasheet, MAX6795TPMD2+ pinout, MAX6795TPMD2+ application, or MAX6795TPMD2+ equivalent, key selection considerations include its AEC-Q100-qualified TQFN-20 package, dual-mode watchdog disable capability, thermal/short-circuit protection, and compatibility with reverse-battery pFET gate drive via GATEP pin.
Technical Context
The MAX6795TPMD2+ implements a single LDO regulator with internal pass transistor, supporting preset 5V output (L option) and fixed 87.5% reset threshold relative to OUT. Its RESET output is push-pull active-low with capacitor-adjustable timeout (D2 = 12.5ms nominal), and watchdog timeout is fixed at 280ms min (CSWT tied to OUT).
It integrates HOLD functionality enabling self-holding latch behavior without external components, and includes a dedicated PFI comparator (1.231V threshold) with 35μs propagation delay. The device uses internal current-sinking ENABLE and pull-up HOLD inputs, and supports reverse-battery protection via GATEP-driven p-channel MOSFET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external clamping |
| Output Current | 300mA continuous - sufficient for MCU core + peripheral rail in compact ECUs |
| Quiescent Current | 68μA typical - enables always-on operation in battery-sensitive automotive modules |
| Reset Threshold | 87.5% of VOUT (4.375V at 5V output) - ensures reliable microprocessor reset during brownout |
| Reset Timeout | 12.5ms (D2 option) - meets automotive cold-cranking timing requirements |
| Watchdog Timeout | 280ms minimum (fixed) - provides fail-safe monitoring for safety-critical firmware |
| Dropout Voltage | 420mV typ @ 100mA - enables stable regulation even at low VIN (e.g., 6V cranking) |
Pinout & Package
MAX6795TPMD2+ is housed in a thermally enhanced 5mm × 5mm, 20-pin TQFN-EP package (exposed pad connected to GND), rated for 2.7W power dissipation and specified over –40°C to +125°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2 | OUT | Regulator output (5V fixed); requires ≥10μF ceramic capacitor to GND for stability |
| 3 | SET | Feedback input; grounded for 5V preset mode; connects to resistor divider for adjustable output |
| 4 | PFO | Open-drain power-fail output; asserts low when PFI < 1.231V - used for early shutdown warning |
| 5 | CSWT | Watchdog timeout adjust; tied to OUT for fixed 280ms timeout (no external cap needed) |
| 6 | CSRT | Reset timeout adjust; tied to OUT for fixed 12.5ms timeout (D2 option) |
| 7 | GND | Power and signal reference; connects to exposed pad for thermal conduction |
| 8 | RESET | Push-pull active-low reset output; drives µP reset pin directly without pull-up |
| 11 | WDI | Watchdog input; requires edge transition every ≤280ms to prevent reset assertion |
| 12 | HOLD | Active-low latch enable; forces OUT on even after ENABLE goes low - enables ignition-key hold logic |
| 16 | PFI | Power-fail comparator input; sets threshold via resistive divider (e.g., battery voltage monitor) |
| 17,18 | IN | Main regulator input; bypassed with 1μF ceramic capacitor to GND near pins |
| 19 | GATEP | pFET gate driver; sinks current to turn on external high-side pMOS for reverse-battery protection |
| 20 | ENABLE | Active-high enable; internally pulled down (0.5μA sink); driven by ignition switch or system controller |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified per Grade 0 (–40°C to +125°C) - certified for under-hood automotive deployment |
| Reverse-battery protection interface | GATEP pin drives external p-channel MOSFET - eliminates series diode loss and heat |
| Self-holding circuit support | HOLD input latches regulator ON without external components - simplifies ignition-switch sequencing |
| Capacitor-adjustable supervision | CSRT and CSWT pins accept external capacitors for custom reset/watchdog timeouts beyond D0–D4 options |
| Integrated power-fail comparator | PFI/PFO pair with 1.231V precision threshold - enables battery voltage monitoring with <35μs response |
| Thermal & short-circuit protection | 165°C thermal shutdown with 20°C hysteresis and 480mA short-circuit limit - prevents damage during fault |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Powers 32-bit MCU and CAN transceiver in gasoline/diesel ECU during cold cranking (6V) and load dump (72V). IC Role / Device Role / Timing Role: Primary 5V system rail regulator with integrated reset and watchdog for ASIL-B functional safety compliance. Use Value: 68μA quiescent current prevents battery drain during vehicle sleep; 72V tolerance avoids external TVS; HOLD enables ignition-key latching. |
Use Scenario: Supplies vision processor and radar SoC in front-camera module exposed to under-hood temperatures. IC Role / Device Role / Timing Role: Single-point-of-failure protected 5V rail with PFI-based battery health monitoring and fast-reset recovery. Use Value: –40°C to +125°C rating ensures operation at peak under-hood temp; 300mA output supports burst-mode imaging loads. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Regulates gateway MCU and LIN transceivers in centralized BCM managing lighting, door locks, and HVAC. IC Role / Device Role / Timing Role: Supervised 5V rail with programmable reset timeout (12.5ms) synchronized to CAN bus wake-up timing. Use Value: Push-pull RESET eliminates external pull-up; WDI watchdog prevents firmware lockup during LIN bus noise events. |
Use Scenario: Powers torque-sensing MCU and motor gate drivers in EPS ECU subject to vibration and thermal cycling. IC Role / Device Role / Timing Role: Safety-redundant 5V supply with thermal shutdown (165°C) and output overvoltage protection (105% VOUT). Use Value: GATEP-driven pFET enables reverse-battery survival without diode drop; 2.7W package dissipation sustains 125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage supervisory regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6795TPLD2/V+ | AEC-Q100 qualified (Grade 0), same pinout and electrical specs; /V suffix denotes automotive qualification | Required for production automotive programs needing full AEC-Q100 documentation and PPAP support | Select MAX6795TPLD2/V+ when automotive qualification traceability and extended reliability testing are mandatory |
| TLV70733PDRVR | Lower VIN max (5.5V), no watchdog or RESET, 200mA output, SOT-23-6 package | Limited to low-voltage infotainment accessories; lacks supervision and high-VIN capability | Use only in non-automotive, low-input-voltage subsystems where supervision is handled externally |
Compared with MAX6795TPMD2+, the MAX6795TPLD2/V+ adds formal AEC-Q100 certification for production deployment, while TLV70733PDRVR offers cost and size savings only in non-automotive, low-voltage applications lacking supervision - neither is pin-compatible nor functionally equivalent without redesign.
Availability
MAX6795TPMD2+ is available at Aetrix Electronics and suitable for automotive engine control, ADAS camera modules, and body electronics requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX6795TPMD2+ 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 MAX6795TPMD2+ belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators with integrated supervision, developed specifically for automotive subsystems demanding ultra-low IQ, wide VIN, and functional safety features.
FAQ
What output voltage does the MAX6795TPMD2+ provide?
The MAX6795TPMD2+ provides a fixed 5V output voltage. This is determined by the "L" in the part number suffix (TPMD2+ → L = 5V, M = 3.3V, Z = 2.5V, W = 1.8V). The device does not require external feedback components for this configuration - SET is internally connected to GND to select the preset output. Output accuracy is ±2.5% over temperature and line/load conditions.
How is the reset timeout period configured on the MAX6795TPMD2+?
The MAX6795TPMD2+ uses the "D2" suffix to indicate a 12.5ms nominal reset timeout period. This is implemented by connecting the CSRT pin to the OUT pin internally (or externally), selecting the factory-trimmed capacitor-ramp circuit. No external capacitor is required. The actual timeout varies from 8.75ms to 16.25ms over temperature, as specified in the Electrical Characteristics table.
Does the MAX6795TPMD2+ support watchdog functionality, and how is it enabled?
Yes, the MAX6795TPMD2+ includes a watchdog timer with a fixed minimum timeout of 280ms. It is enabled by default when WD-DIS is left unconnected or tied to OUT. To disable it, drive the WD-DIS pin low. The watchdog monitors transitions on WDI - if no edge occurs within 280ms, RESET asserts for the full CSRT-defined timeout period. The MAX6795TPMD2+ does not support windowed watchdog mode (only MAX6791/MAX6792 do).
What is the purpose of the GATEP pin on the MAX6795TPMD2+?
The GATEP pin on the MAX6795TPMD2+ drives the gate of an external p-channel MOSFET to implement reverse-battery protection. When reverse polarity is applied, GATEP pulls low to turn on the pFET, blocking current flow and protecting downstream circuitry. This eliminates the power loss and heat generation of a series Schottky diode. The GATEP driver is rated for 12V gate drive and supports fast turn-on/turn-off.
Is the MAX6795TPMD2+ qualified for automotive use?
The MAX6795TPMD2+ is not explicitly AEC-Q100 qualified - its suffix lacks the "/V" designation. For automotive production, use MAX6795TPLD2/V+, which carries full AEC-Q100 Grade 0 qualification (–40°C to +125°C), including stress testing and failure analysis reports. The MAX6795TPMD2+ shares identical electrical and thermal specifications but is intended for prototyping, industrial, or non-safety-critical automotive applications where formal qualification is not mandated.
MAX6795TPMD2+ 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:
- 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+ FAQ
1.How can I place an order for MAX6795TPMD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPMD2+ 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+ reliable?
The price and inventory of MAX6795TPMD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPMD2+ is usually 5 days.
3.What payment methods are accepted for MAX6795TPMD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPMD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPMD2+?
MAX6795TPMD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPMD2+ 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+?
For technical support, including MAX6795TPMD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPMD2+ requirements.
6.How does Aetrix verify that MAX6795TPMD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6795TPMD2+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX6795TPMD2+?
All MAX6795TPMD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPMD2+, 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+ part is unused and in its original packaging.
Return procedure for MAX6795TPMD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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