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Analog Devices Inc./Maxim Integrated MAX6795TPTD2+T
- Part No.:
- MAX6795TPTD2+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPTD2+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,600
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Product details
Overview
MAX6795TPTD2+T from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions, designed for automotive power management. It delivers up to 300mA output current, operates from 5V to 72V input, consumes only 68μA quiescent current, and features a 5V fixed output with 87.5% reset threshold and 12.5ms reset timeout - ideal for engine control units under load-dump conditions.
For engineers reviewing the MAX6795TPTD2+T datasheet, MAX6795TPTD2+T pinout, MAX6795TPTD2+T application, or MAX6795TPTD2+T equivalent, key selection considerations include its AEC-Q100-qualified 20-pin TQFN package, HOLD/ENABLE control logic for ignition-hold circuits, watchdog disable capability, and thermal protection up to +125°C ambient.
Technical Context
The MAX6795TPTD2+T implements a single LDO regulator with internal pFET pass device, supporting fixed 5V output (L-grade) and 87.5% reset threshold relative to VOUT. Its RESET output is push-pull active-low with capacitor-adjustable timeout (D2 = 12.5ms nominal), and it integrates a fixed 280ms watchdog timeout with WD-DIS pin for full disable control.
Supervision includes a dedicated PFI comparator referenced to 1.231V, GATEP-driven reverse-battery pFET gate driver, and HOLD input internally pulled to OUT via 2µA current source - enabling self-holding without external components during ignition sequencing in automotive body electronics.
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 ECUs |
| Quiescent Current | 68μA at no load - enables always-on functionality with <100μA system standby budget |
| Reset Threshold | 87.5% of VOUT (4.375V at 5V output) - ensures reliable microprocessor reset before brownout |
| Reset Timeout | 12.5ms (D2 option) - meets ISO 16750-2 cold-crank timing requirements |
| Watchdog Timeout | 280ms fixed (CSWT tied to OUT) - provides fail-safe recovery for 8-bit/16-bit automotive MCUs |
| Thermal Protection | +165°C shutdown with 20°C hysteresis - sustains operation in under-hood environments |
| AEC-Q100 Grade | Grade 0 (–40°C to +125°C) - qualified for powertrain and safety-critical modules |
Pinout & Package
MAX6795TPTD2+T is housed in a thermally enhanced 20-pin TQFN-EP package (5mm × 5mm, 0.5mm pitch) with exposed pad (EP) connected to GND for low-junction-to-board thermal resistance (supports 2.7W dissipation).
| 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, or connected to resistive divider for adjustable output |
| 4 | PFO | Open-drain power-fail output; asserts low when PFI < 1.231V - used for early battery-low warning |
| 5 | CSWT | Watchdog timeout adjust; tied to OUT for fixed 280ms timeout (D2 variant) |
| 6 | CSRT | Reset timeout adjust; tied to OUT for fixed 12.5ms timeout (D2 variant) |
| 7 | GND | Analog/digital ground reference; must be connected to EP for thermal performance |
| 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 ± tolerance to prevent reset assertion |
| 12 | HOLD | Active-low hold enable; forces regulator ON even after ENABLE goes low - enables ignition-hold circuit |
| 16 | PFI | Power-fail comparator input; set via resistor divider to monitor battery or pre-regulated rail |
| 17,18 | IN | Main input (5V–72V); bypassed with 1μF ceramic capacitor to GND |
| 19 | GATEP | pFET gate driver output; drives external p-channel MOSFET for reverse-battery protection |
| 20 | ENABLE | Active-high enable; internally pulled down (0.5μA), compatible with 3.3V/5V logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 68μA enables >10-year battery life in always-on automotive modules |
| Integrated reverse-battery protection driver | GATEP output eliminates need for series diode, reducing voltage drop and heat in 12V systems |
| Self-holding circuit support | HOLD pin + internal 2μA pullup to OUT allows ignition-key-triggered latching without external latch IC |
| Adjustable supervision timing | CSRT/CSWT pins accept capacitors for custom reset/watchdog timeouts beyond factory presets |
| Robust fault protection | Thermal shutdown (+165°C), short-circuit current limit (480mA), and output overvoltage clamp (1.1×VOUT) |
| AEC-Q100 qualification | Qualified to Grade 0 (–40°C to +125°C) for powertrain, ADAS, and body control modules |
Applications
| Engine Control Unit (ECU) Power Supply | Body Control Module (BCM) Supervision |
|---|---|
Use Scenario: Powers 5V microcontroller and CAN transceiver in gasoline/diesel ECU under wide battery voltage range (6V–16V) and load-dump transients (up to 72V). IC Role / Device Role / Timing Role: Single-output LDO regulator with reset supervisor and watchdog - provides clean 5V rail and ensures deterministic MCU restart during cranking/brownout. Use Value: 68μA quiescent current prevents battery drain during vehicle sleep; 72V input rating eliminates need for external TVS clamping. | Use Scenario: Supplies 5V to door module MCU and LIN transceiver, with HOLD pin latched to ignition signal for post-ignition power retention. IC Role / Device Role / Timing Role: Regulator + supervisor with HOLD/ENABLE logic - implements self-holding power path without external latch or timer IC. Use Value: HOLD pin reduces BOM count by eliminating discrete latch circuit; 12.5ms reset timeout satisfies ISO 16750-2 cold-crank timing. |
| ADAS Camera Power Management | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Powers image sensor and ISP in rear-view camera module mounted near exhaust, requiring operation up to +105°C ambient. IC Role / Device Role / Timing Role: High-temperature LDO with thermal shutdown and watchdog - maintains stable 5V supply while detecting MCU lockup in vision processing chain. Use Value: +125°C rated junction temperature and 20°C thermal hysteresis ensure reliability in under-hood thermal cycling. | Use Scenario: Supplies 5V to torque sensor and resolver interface in EPS motor control unit, with PFI monitoring pre-regulated 12V rail for early undervoltage detection. IC Role / Device Role / Timing Role: Regulator with PFI comparator and PFO output - provides programmable power-fail warning to initiate safe steering assist degradation. Use Value: Adjustable PFI threshold (via resistor divider) enables precise battery voltage monitoring independent of main regulator output. |
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), identical electrical specs and pinout; /V+ suffix denotes automotive qualification | Required for production automotive programs needing formal AEC-Q100 documentation and PPAP support | Select MAX6795TPLD2/V+ for Tier 1 automotive production; MAX6795TPTD2+T is lead-free tape-and-reel variant suitable for prototyping and non-automotive industrial use |
| TLV70733PDPWR | Lower input range (2.5V–5.5V), no watchdog/reset supervision, SOT-23-5 package, 200mA output | Limited to low-voltage embedded systems without automotive transients or supervision needs | Only consider TLV70733PDPWR for cost-sensitive, non-automotive 3.3V applications where supervision and 72V tolerance are unnecessary |
Compared with MAX6795TPLD2/V+, the MAX6795TPTD2+T shares identical regulation and supervision functionality but lacks formal AEC-Q100 certification documentation; versus TLV70733PDPWR, it offers 23× higher input voltage range, integrated watchdog/reset, and 50% higher output current - making it uniquely suited for automotive power domains.
Availability
MAX6795TPTD2+T is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and electric power steering interfaces requiring stable component supply across extended temperature and high-voltage stress conditions.
Supply support for MAX6795TPTD2+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 MAX6795TPTD2+T belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators with integrated supervision - engineered specifically for automotive power domains demanding load-dump resilience, ultra-low quiescent current, and functional safety-aware reset/watchdog behavior.
FAQ
What output voltage does the MAX6795TPTD2+T provide?
The MAX6795TPTD2+T provides a fixed 5V output voltage (L-grade option). This is confirmed by the "TD2" suffix in the part number, where "T" indicates 5V output and "D2" specifies the 12.5ms reset timeout. The device also supports adjustable output (1.8V–11V) via the SET pin, but the MAX6795TPTD2+T is factory-configured for 5V.
Does the MAX6795TPTD2+T include watchdog functionality?
Yes, the MAX6795TPTD2+T includes a configurable watchdog timer with fixed 280ms timeout (when CSWT is tied to OUT, as in the D2 variant). It monitors the WDI pin for transitions and asserts RESET if no valid edge occurs within the timeout period. The WD-DIS pin allows full hardware disable of the watchdog function.
What is the purpose of the HOLD pin on the MAX6795TPTD2+T?
The HOLD pin on the MAX6795TPTD2+T enables self-holding operation: when driven low after initial power-up, it keeps the regulator enabled even if the ENABLE pin is subsequently deasserted. This allows ignition-switch-triggered latching in automotive systems without external components. HOLD is internally pulled up to OUT via a 2µA current source.
Is the MAX6795TPTD2+T qualified for automotive applications?
The MAX6795TPTD2+T is lead-free and tape-and-reel packaged, but its base ordering code lacks the "/V+" automotive qualification suffix. For production automotive use requiring AEC-Q100 documentation, select MAX6795TPLD2/V+. Both share identical electrical specs and pinout, but only the /V+ variant carries formal Grade 0 qualification.
What package type and thermal performance does the MAX6795TPTD2+T use?
The MAX6795TPTD2+T uses a 20-pin TQFN-EP package (5mm × 5mm) with exposed pad. It dissipates up to 2.7W and is specified from –40°C to +125°C. The EP must be soldered to the PCB ground plane to achieve low thermal resistance and sustain full-load operation at high ambient temperatures.
MAX6795TPTD2+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:
- 3.053V, Adj
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 8.75ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6795TPTD2+T FAQ
1.How can I place an order for MAX6795TPTD2+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPTD2+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 MAX6795TPTD2+T reliable?
The price and inventory of MAX6795TPTD2+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPTD2+T is usually 5 days.
3.What payment methods are accepted for MAX6795TPTD2+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPTD2+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPTD2+T?
MAX6795TPTD2+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPTD2+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 MAX6795TPTD2+T?
For technical support, including MAX6795TPTD2+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPTD2+T requirements.
6.How does Aetrix verify that MAX6795TPTD2+T is sourced from the original manufacturer or authorized distributors?
All MAX6795TPTD2+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 MAX6795TPTD2+T meets industry standards.
7.What is the process for return or replacement of MAX6795TPTD2+T?
All MAX6795TPTD2+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPTD2+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 MAX6795TPTD2+T part is unused and in its original packaging.
Return procedure for MAX6795TPTD2+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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