My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6795TPMD4+
- Part No.:
- MAX6795TPMD4+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPMD4+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,302
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6795TPMD4+ 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 includes a capacitor-adjustable 200ms reset timeout (D4 option) and fixed 280ms watchdog timeout. It is used in engine control units (ECUs) and ADAS domain controllers where load-dump resilience and microprocessor supervision are critical.
For engineers reviewing the MAX6795TPMD4+ datasheet, MAX6795TPMD4+ pinout, MAX6795TPMD4+ application, or MAX6795TPMD4+ equivalent, key selection considerations include its AEC-Q100-qualified TQFN-20 package, 5mm × 5mm thermally enhanced footprint, adjustable or preset output voltage (1.8V–11V or fixed 5V/3.3V/2.5V/1.8V), HOLD/ENABLE control logic for ignition hold circuits, and dual-mode watchdog with disable capability.
Technical Context
The MAX6795TPMD4+ integrates a single high-side linear regulator with thermal, short-circuit, and overvoltage protection, plus a precision reset supervisor with 92.5% (L/M) or 87.5% (T/S/Z/W/V) reset threshold relative to VOUT. Its RESET output is push-pull or open-drain configurable, and the D4 suffix denotes a factory-set 200ms reset timeout period (140–260ms range).
It implements a fixed 280ms (min) watchdog timeout (CSWT = OUT), supports watchdog disable via WD-DIS pin, and uses SET pin for output voltage programming (GND = preset, resistive divider = adjustable). The HOLD input enables self-holding behavior without external components, critical for automotive ignition sequencing.
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 powering MCU cores, CAN transceivers, and sensor interfaces |
| Quiescent Current | 68μA typical - enables always-on functionality in battery-sensitive automotive modules |
| Reset Timeout (D4) | 200ms (140–260ms) - ensures reliable microprocessor initialization after brownout recovery |
| Dropout Voltage | 420mV typ at 100mA - maintains regulation down to VIN = VOUT + 0.42V, improving efficiency at low VIN |
| Operating Temperature | −40°C to +125°C - fully specified for under-hood automotive environments |
| Output Voltage Options | Fixed 5V/3.3V/2.5V/1.8V or adjustable 1.8V–11V - supports diverse SoC and peripheral rail requirements |
Pinout & Package
MAX6795TPMD4+ is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package with exposed pad (EP) connected internally to GND. The package dissipates up to 2.7W and supports operation at high ambient temperatures and elevated battery voltages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT | Regulator output - delivers up to 300mA; requires ≥10μF ceramic capacitor to GND for stability |
| 3 | SET | Feedback input - connect to GND for preset voltage; use resistive divider for adjustable output (1.8V–11V) |
| 4 | PFO | Active-low open-drain power-fail output - asserts when PFI falls below 1.231V threshold |
| 5 | CSWT | Watchdog timeout adjust - tied to OUT for fixed 280ms timeout; capacitor to GND enables adjustment |
| 6 | CSRT | Reset timeout adjust - tied to OUT for factory-set D4 (200ms); capacitor enables user-defined timeout |
| 7 | GND | Ground reference - connects to EP for optimal thermal performance |
| 8 | RESET | Active-low reset output - push-pull or open-drain; asserts during VOUT undervoltage or watchdog fault |
| 11 | WDI | Watchdog input - requires edge transition within timeout window to prevent RESET assertion |
| 12 | HOLD | Active-low hold enable - forces regulator ON even after ENABLE goes low; enables ignition hold circuits |
| 16 | PFI | Power-fail comparator input - set threshold via resistor divider; triggers PFO at 1.231V reference |
| 17, 18 | IN | Main regulator input - bypass with 1μF capacitor to GND; rated for −0.3V to +80V absolute max |
| 19 | GATEP | pFET gate drive - controls external p-channel MOSFET for reverse-battery protection |
| 20 | ENABLE | Active-high enable - internal 0.5μA pulldown; drives high to activate regulator output |
| EP | Exposed Pad | Thermal and electrical GND - must be soldered to PCB ground plane for thermal dissipation and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 68μA at no load - extends battery life in always-on automotive modules such as telematics and body controllers |
| Integrated HOLD function | Enables self-holding circuit without external latching components - simplifies ignition-switched power architecture |
| Dual supervisory timers | Independent reset (D4 = 200ms) and watchdog (280ms fixed) with disable pin - eliminates need for discrete supervisors |
| Reverse-battery protection driver | GATEP output drives external pFET - replaces lossy series diode, reducing voltage drop and heat generation |
| AEC-Q100 qualified | Qualified per AEC-Q100 Rev H Grade 0 (−40°C to +125°C) - meets automotive reliability and stress-test requirements |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Powers 32-bit MCU, CAN FD transceiver, and analog sensor front-end in gasoline/diesel ECU under wide battery voltage swing (6V–16V) and load-dump events (up to 72V). IC Role / Device Role / Timing Role: Primary 5V/3.3V power source with integrated reset supervision and watchdog monitoring of MCU firmware execution. Use Value: Eliminates need for external reset IC and discrete hold circuit; 68μA IQ enables stop-start compliance. |
Use Scenario: Supplies vision processor, radar SoC, and camera interface in forward collision warning system operating near engine bay. IC Role / Device Role / Timing Role: High-reliability LDO with thermal shutdown, overvoltage protection, and precise reset timing for safety-critical boot sequence. Use Value: 125°C rating and 2.7W thermal dissipation ensure stable operation in high-ambient zones; D4 reset timeout guarantees deterministic MCU restart after brownout. |
| Body Control Module (BCM) | Infotainment Head Unit |
Use Scenario: Powers microcontroller, LIN transceivers, and LED drivers in door module with wake-on-LIN capability and low standby power budget. IC Role / Device Role / Timing Role: Always-on regulator with HOLD-controlled latching and PFI-based early power-fail warning for graceful shutdown. Use Value: HOLD + ENABLE logic enables ignition-key-triggered power-up without microcontroller intervention; PFO alerts firmware before battery collapse. |
Use Scenario: Provides clean 3.3V rail to application processor and audio codec in head unit with USB-C PD input and variable battery voltage. IC Role / Device Role / Timing Role: Input-tolerant LDO with reverse-battery protection (via GATEP) and adjustable output for flexible SoC core voltage scaling. Use Value: GATEP-driven pFET replaces Schottky diode, saving >0.4V dropout and >1W heat at 2.5A; adjustable SET allows dynamic voltage tuning. |
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 |
|---|---|---|---|
| MAX6795TPSD2/V+ | Same family, but D2 reset timeout (12.5ms) and S output (3.3V fixed); /V+ denotes AEC-Q100 qualification | Targeted at fast-reset applications like real-time safety monitors requiring sub-20ms recovery | Select when faster reset response is needed and 3.3V fixed output suffices; identical pinout and thermal performance |
| TLV70733PDPWR | Lower input range (2.5V–5.5V), 200mA output, no watchdog or HOLD; SOT-23-5 package | Consumer-grade portable electronics only - lacks automotive temp range, supervision, or high-VIN capability | Not suitable for automotive use; consider only for non-automotive, low-cost, low-power 3.3V point-of-load applications |
Compared with MAX6795TPMD4+, the MAX6795TPSD2/V+ offers identical automotive qualification and package but trades 200ms reset robustness for faster 12.5ms response, while TLV70733PDPWR lacks supervision, high-VIN support, and temperature rating - making it incompatible for automotive deployment.
Availability
MAX6795TPMD4+ is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and body control modules requiring stable component supply across extended temperature ranges and automotive qualification.
Supply support for MAX6795TPMD4+ 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, automotive, and communications applications.
The MAX6795TPMD4+ belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators with integrated supervision, developed specifically for automotive systems needing load-dump resilience, ultra-low IQ, and functional safety-aware reset/watchdog behavior.
FAQ
What output voltage options does the MAX6795TPMD4+ support?
The MAX6795TPMD4+ supports fixed output voltages of 5V, 3.3V, 2.5V, or 1.8V, selected by factory configuration indicated in the part number suffix (e.g., 'M' = 3.3V). It also supports adjustable output from 1.8V to 11V using an external resistive divider connected to the SET pin. The MAX6795TPMD4+ specifically uses the 'M' option, delivering a nominal 3.3V output with ±2.5% tolerance over temperature and load.
How is the 200ms reset timeout implemented in the MAX6795TPMD4+?
The MAX6795TPMD4+ implements its 200ms reset timeout (D4 option) using an internal capacitor ramp circuit referenced to the CSRT pin. When CSRT is tied to OUT (as in the D4 variant), the device uses a factory-trimmed internal capacitor and current source to generate a precise 200ms (140–260ms) delay after VOUT rises above the reset threshold. No external capacitor is required, ensuring consistent timing without layout sensitivity.
Can the watchdog function be disabled on the MAX6795TPMD4+?
Yes, the watchdog function on the MAX6795TPMD4+ can be disabled using the WD-DIS pin. Driving WD-DIS low disables the watchdog timer entirely, preventing RESET assertion due to WDI timeout. This allows the MAX6795TPMD4+ to operate as a pure regulator + reset supervisor without watchdog supervision - useful in systems where firmware cannot guarantee timely WDI toggling.
What is the role of the HOLD pin in the MAX6795TPMD4+?
The HOLD pin on the MAX6795TPMD4+ enables self-holding behavior: once ENABLE is asserted and the regulator turns on, pulling HOLD low locks the output ON even if ENABLE subsequently returns low. Releasing HOLD (letting it float or pulling high) shuts down the regulator. This eliminates external latch components in ignition-switched automotive power architectures, directly supporting start-stop and key-off memory functions.
Is the MAX6795TPMD4+ qualified for automotive use?
Yes, the MAX6795TPMD4+ is AEC-Q100 qualified (Grade 0, −40°C to +125°C) and manufactured in an automotive-grade flow. Its design includes thermal shutdown, short-circuit protection, output overvoltage clamp, and robust ESD tolerance - all validated per automotive stress test standards. The '+' suffix confirms lead-free packaging, and the device is rated for continuous operation under 72V load-dump conditions.
MAX6795TPMD4+ 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:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6795TPMD4+ FAQ
1.How can I place an order for MAX6795TPMD4+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPMD4+ 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 MAX6795TPMD4+ reliable?
The price and inventory of MAX6795TPMD4+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPMD4+ is usually 5 days.
3.What payment methods are accepted for MAX6795TPMD4+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPMD4+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPMD4+?
MAX6795TPMD4+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPMD4+ 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 MAX6795TPMD4+?
For technical support, including MAX6795TPMD4+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPMD4+ requirements.
6.How does Aetrix verify that MAX6795TPMD4+ is sourced from the original manufacturer or authorized distributors?
All MAX6795TPMD4+ 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 MAX6795TPMD4+ meets industry standards.
7.What is the process for return or replacement of MAX6795TPMD4+?
All MAX6795TPMD4+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPMD4+, 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 MAX6795TPMD4+ part is unused and in its original packaging.
Return procedure for MAX6795TPMD4+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6795TPMD4+ Tags
-
MIC826SYMT-TR
Microchip Technology
-
APX803S-31SA-7
Diodes Incorporated
-
APX803L20-29SA-7
Diodes Incorporated
-
TPS3828-33DBVR
Texas Instruments
-
V6340RSP3B+
EM Microelectronic
-
EM6325CXSP5B-2.9+
EM Microelectronic
-
MCP120T-300I/TT
Microchip Technology
-
MCP130T-315I/TT
Microchip Technology
-
MCP120T-475I/TT
Microchip Technology
-
MCP111T-300E/TT
Microchip Technology
-
MCP120T-315I/TT
Microchip Technology
-
MCP809T-315I/TT
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
