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Analog Devices Inc./Maxim Integrated MAX6795TPLD2+
- Part No.:
- MAX6795TPLD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPLD2+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:385
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Product details
Overview
The MAX6795TPLD2+ from Maxim Integrated is a single-output, AEC-Q100 qualified 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 fixed 5V output with 87.5% reset threshold and 12.5ms reset timeout-ideal for engine control units under load-dump conditions.
For engineers reviewing the MAX6795TPLD2+ datasheet, MAX6795TPLD2+ pinout, MAX6795TPLD2+ application, or MAX6795TPLD2+ equivalent, key selection criteria include its wide-input voltage range, thermal shutdown protection, watchdog disable capability, HOLD/ENABLE self-holding logic, and automotive-grade qualification across –40°C to +125°C.
Technical Context
This device implements a high-voltage pFET-based LDO architecture with internal feedback via SET pin, supporting both preset (5V) and adjustable (1.8V–11V) outputs. Its supervisory block integrates a fixed-threshold RESET comparator (87.5% of VOUT), capacitor-adjustable reset timeout (CSRT), and dual-mode watchdog timer with WD-DIS disable control.
The functional diagram confirms dedicated circuitry for reverse-battery protection (GATEP drive), power-fail monitoring (PFI/PFO), and independent HOLD latching logic that sustains regulation after ENABLE release-enabling ignition-key-triggered self-hold without external components.
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 body control modules |
| Quiescent Current | 68μA typical - enables always-on functionality in low-power vehicle states (e.g., key-off monitoring) |
| Reset Threshold | 87.5% of nominal VOUT (4.375V at 5V output) - ensures reliable microcontroller reset during brownout |
| Reset Timeout | 12.5ms (D2 option) - meets automotive cold-cranking timing requirements per ISO 16750-2 |
| Watchdog Timeout | Fixed 280ms min or capacitor-adjustable - supports fail-safe firmware supervision in safety-critical ECUs |
| Operating Temperature | –40°C to +125°C - fully specified for under-hood automotive environments |
| AEC-Q100 Grade | Grade 0 (–40°C to +150°C junction) - qualified per AEC-Q100 Rev H for automotive use |
Pinout & Package
MAX6795TPLD2+ uses a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package with exposed pad (EP) connected internally to GND for optimal thermal dissipation (2.7W max). Pin count and layout match all MAX6791–MAX6796 family members.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2 | OUT | Regulator output (5V fixed); requires ≥10μF ceramic capacitor to GND for stability |
| 3 | SET | Feedback node - tied to GND for 5V preset; used with resistor divider for adjustable output |
| 4 | PFO | Open-drain power-fail output - asserts low when PFI falls below 1.231V (e.g., battery sag detection) |
| 5 | CSWT | Watchdog timeout adjust - connect to OUT for fixed 280ms timeout or add capacitor for custom period |
| 6 | CSRT | Reset timeout adjust - connected to OUT for factory-set 12.5ms (D2) timeout |
| 7 | GND | Analog/digital ground reference - must be low-impedance connection to PCB ground plane |
| 8 | RESET | Active-low push-pull reset output - drives µP reset pin directly; holds low for full timeout after recovery |
| 11 | WDI | Watchdog input - requires edge transition within timeout window to prevent reset assertion |
| 12 | HOLD | Active-low latching enable - forces regulator ON even after ENABLE goes low; enables self-hold circuits |
| 16 | PFI | Power-fail comparator input - set threshold via resistive divider to monitor battery or pre-regulated rail |
| 17,18 | IN | Main input supply - bypass with 1μF ceramic capacitor to GND near pins for EMI suppression |
| 19 | GATEP | pFET gate driver - controls external high-side p-channel MOSFET for reverse-battery protection |
| 20 | ENABLE | Active-high regulator enable - internal 0.5μA pulldown allows direct connection to ignition-switched 12V |
| EP | Exposed Pad | Internally connected to GND - must be soldered to large copper pour for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 68μA enables >10-year battery standby life in always-on automotive modules |
| Integrated reverse-battery protection | GATEP output drives external pFET - eliminates series diode drop and heat generation |
| Self-holding circuit support | HOLD input latches regulator ON after ENABLE pulse - no external latch IC or resistor network needed |
| Configurable watchdog timer | WD-DIS pin disables watchdog entirely - simplifies validation in non-safety-critical designs |
| Thermal & short-circuit protection | +165°C shutdown with 20°C hysteresis - prevents damage during sustained overload or ambient extremes |
| AEC-Q100 qualified | Qualified per Grade 0 - validated for automotive under-hood operation including temperature cycling and vibration |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Powers 32-bit MCU and CAN transceiver during cold cranking and load-dump events. IC Role / Device Role / Timing Role: Primary 5V LDO with reset supervision and watchdog monitoring of firmware execution. Use Value: 72V input tolerance and 12.5ms D2 reset timeout ensure uninterrupted operation during ISO 16750-2 transient profiles. |
Use Scenario: Supplies door module microcontroller and LIN transceiver in low-power sleep mode. IC Role / Device Role / Timing Role: Always-on 5V regulator with 68μA quiescent current and HOLD-enabled wake-up latching. Use Value: Enables <100μA system sleep current while retaining fast wake-up response via ignition-triggered HOLD activation. |
| Advanced Driver Assistance System (ADAS) Camera ECU | Electric Power Steering (EPS) Controller |
|
Use Scenario: Provides clean 5V rail to image sensor and ISP in high-temperature front-end mounting location. IC Role / Device Role / Timing Role: High-reliability LDO with thermal shutdown and power-fail warning (PFI/PFO) for graceful sensor shutdown. Use Value: –40°C to +125°C operation and 2.7W thermal dissipation support continuous operation at 85°C ambient. |
Use Scenario: Supplies motor control MCU and gate drivers in safety-critical steering assist system. IC Role / Device Role / Timing Role: Safety-monitored regulator with watchdog disable (WD-DIS) and reset assertion on VOUT fault. Use Value: WD-DIS allows deterministic watchdog behavior per ASIL-B requirements while maintaining reset supervision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6795TPSD2/V+ | Same package and pinout; differs only in reset threshold (87.5% vs. 92.5%) and reset timeout (12.5ms vs. 50ms) | Suitable where longer reset hold time is required during slow-rising battery recovery | Select MAX6795TPSD2/V+ if system requires extended reset assertion during marginal VBAT recovery |
| TLV73350PDBVR | Lower input range (1.4V–5.5V), no watchdog/reset, 250mA output, SOT-23-5 package | Limited to post-regulated 5V rails; lacks automotive qualification and supervisory features | Use TLV73350PDBVR only in non-automotive, low-voltage, cost-sensitive applications without supervision needs |
Compared with MAX6795TPSD2/V+, MAX6795TPLD2+ offers tighter reset threshold tolerance for faster brownout response; compared with TLV73350PDBVR, it provides full automotive robustness, wide-input operation, and integrated safety monitoring-making it irreplaceable in primary vehicle power domains.
Availability
MAX6795TPLD2+ is available at Aetrix Electronics and suitable for automotive engine control, body electronics, ADAS camera modules, and electric power steering systems requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for MAX6795TPLD2+ 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 demanding industrial, communications, and automotive applications.
The MAX6791–MAX6796 product line targets high-reliability automotive power systems, delivering micropower LDOs with integrated supervision to replace discrete reset ICs and simplify ECU power architecture.
FAQ
What is the exact output voltage and reset threshold of MAX6795TPLD2+?
The MAX6795TPLD2+ provides a fixed 5.0V output with ±2.5% tolerance over temperature and load. Its reset threshold is precisely 87.5% of nominal VOUT (4.375V), verified across –40°C to +125°C. This matches the "L" preset option and "D2" reset timeout configuration documented in the MAX6795 datasheet Table 2.
Does MAX6795TPLD2+ support adjustable output voltage?
Yes, MAX6795TPLD2+ supports adjustable output from 1.8V to 11V using an external resistor divider connected between OUT, SET, and GND. However, the "L" suffix in MAX6795TPLD2+ indicates factory-preset 5V operation; adjustable mode requires reconfiguring SET externally and is not pre-programmed in this variant.
How does the HOLD function work in MAX6795TPLD2+?
In MAX6795TPLD2+, the HOLD pin is active-low. When pulled low after ENABLE goes high, it latches the regulator ON-even if ENABLE subsequently returns low. Releasing HOLD (to high-impedance or OUT) shuts down the output. This enables ignition-key-triggered self-hold without external components, a key feature for automotive start-stop systems.
Is MAX6795TPLD2+ qualified for automotive use?
Yes, MAX6795TPLD2+ carries the "/V+" suffix confirming AEC-Q100 qualification (Grade 0) and is rated for –40°C to +125°C operation. It includes automotive-specific protections: load-dump tolerance (72V), reverse-battery protection (via GATEP), and tested reliability per JESD22 and ISO 16750 standards.
Can the watchdog timer in MAX6795TPLD2+ be disabled?
Yes, MAX6795TPLD2+ includes a dedicated WD-DIS pin. Driving WD-DIS low disables the watchdog timer entirely, allowing the device to operate as a pure LDO + supervisor without periodic WDI toggling. This simplifies firmware integration in applications where watchdog supervision is not required.
MAX6795TPLD2+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Regulator/Supervisor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.625V, 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)
MAX6795TPLD2+ FAQ
1.How can I place an order for MAX6795TPLD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPLD2+ 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 MAX6795TPLD2+ reliable?
The price and inventory of MAX6795TPLD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPLD2+ is usually 5 days.
3.What payment methods are accepted for MAX6795TPLD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPLD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPLD2+?
MAX6795TPLD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPLD2+ 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 MAX6795TPLD2+?
For technical support, including MAX6795TPLD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPLD2+ requirements.
6.How does Aetrix verify that MAX6795TPLD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6795TPLD2+ 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 MAX6795TPLD2+ meets industry standards.
7.What is the process for return or replacement of MAX6795TPLD2+?
All MAX6795TPLD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPLD2+, 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 MAX6795TPLD2+ part is unused and in its original packaging.
Return procedure for MAX6795TPLD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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