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Analog Devices Inc./Maxim Integrated MAX6796TPLD0+
- Part No.:
- MAX6796TPLD0+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6796TPLD0+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,068
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Product details
Overview
MAX6796TPLD0+ 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 active-low RESET with 35μs delay and fixed 35μs reset timeout - ideal for engine control units under load-dump conditions.
For engineers reviewing the MAX6796TPLD0+ datasheet, MAX6796TPLD0+ pinout, MAX6796TPLD0+ application, or MAX6796TPLD0+ equivalent, key selection criteria include its AEC-Q100-qualified TQFN-20 package, adjustable or preset (5V/3.3V/2.5V/1.8V) output, HOLD/ENABLE control logic, watchdog disable capability, and thermal protection up to +125°C ambient.
Technical Context
The MAX6796TPLD0+ implements a single LDO regulator with internal pFET pass device and supports both fixed-output and adjustable configurations via SET pin (1.8V–11V). Its supervisory block integrates a precision 1.231V PFI comparator, open-drain or push-pull RESET output, and a configurable watchdog timer with fixed 280ms timeout (D0 variant) or capacitor-adjustable period.
It uses dual threshold monitoring: RESET asserts when OUT drops below 92.5% (for L/M presets) or 87.5% (for T/S/Z/Y/W/V presets) of nominal voltage, and remains asserted for the fixed 35μs timeout after recovery. The HOLD input enables self-holding behavior without external components by latching ON state even after ENABLE is deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external protection circuitry |
| Quiescent Current | 68μA typical - enables always-on functionality in battery-powered automotive modules |
| Output Current | 300mA max - sufficient to power microcontrollers, CAN transceivers, and sensor interfaces |
| Dropout Voltage | 420mV typ at 100mA - maintains regulation during cold-crank (6V battery) with minimal headroom |
| Reset Timeout | 35μs fixed - ensures fast, deterministic reset assertion for safety-critical MCU boot sequences |
| Operating Temp | -40°C to +125°C - fully specified for under-hood automotive environments |
| Package | 20-pin TQFN-EP (5mm × 5mm) - thermally enhanced for 2.7W dissipation at high ambient |
Pinout & Package
MAX6796TPLD0+ is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN package with exposed pad (EP), rated for continuous operation up to +125°C ambient and capable of dissipating 2.7W. The EP must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1,2 | OUT | Regulator output (preset 5V/3.3V/2.5V/1.8V or adjustable 1.8V–11V); requires ≥10μF ceramic output capacitor |
| 3 | SET | Feedback input - grounded for preset voltage; connected to resistive divider for adjustable output |
| 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 (D0 variant) |
| 6 | CSRT | Reset timeout adjust - tied to OUT for fixed 35μs timeout (D0 variant) |
| 7 | GND | Analog/digital ground reference - connects to EP for optimal thermal path |
| 8 | RESET | Active-low reset output - push-pull or open-drain; asserts when OUT drops below reset threshold |
| 11 | WDI | Watchdog input - requires edge transition within timeout window to prevent reset assertion |
| 12 | HOLD | Active-low hold input - latches regulator ON state independent of ENABLE signal |
| 16 | PFI | Power-fail comparator input - used with external resistor divider to set custom brownout threshold |
| 17,18 | IN | Main regulator input - bypassed with ≥1μF ceramic capacitor to GND |
| 19 | GATEP | pFET gate drive - controls external p-channel MOSFET for reverse-battery protection |
| 20 | ENABLE | Active-high enable - internally pulled down; drives high to activate regulator |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 68μA enables >10-year battery life in always-on automotive modules (e.g., telematics wake-up circuits) |
| Integrated reverse-battery protection | GATEP pin drives external pFET - eliminates series diode drop and heat, saving >1W at 10A |
| Self-holding circuit support | HOLD input latches regulator ON without external latch IC or discrete components - reduces BOM count |
| Configurable watchdog timer | D0 variant provides fixed 280ms timeout - simplifies design vs. capacitor-tuned versions requiring layout-sensitive timing |
| AEC-Q100 qualified | Qualified per AEC-Q100 Rev H Grade 0 - validated for under-hood deployment in passenger vehicles and commercial trucks |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Powers 32-bit MCU, CAN FD transceiver, and analog front-end in gasoline/diesel ECU under wide battery voltage range (6V–16V) and load-dump stress (up to 72V). IC Role / Device Role / Timing Role: Primary 5V/3.3V LDO with RESET supervision and watchdog monitoring - ensures deterministic MCU boot and runtime fault detection. Use Value: 68μA IQ enables low-power sleep mode; 72V input rating eliminates need for external TVS/clamp; HOLD function supports ignition-controlled latching. | Use Scenario: Supplies vision processor, radar SoC, and inertial measurement unit in forward-facing camera module operating at -40°C to +105°C ambient. IC Role / Device Role / Timing Role: Single 3.3V/300mA regulator with precise reset timing (35μs) and thermal shutdown - guarantees safe startup and brownout recovery. Use Value: 125°C rating supports placement near heat sources; adjustable output allows optimization for SoC core voltage; PFI comparator enables early battery depletion warning. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Powers microcontroller, LIN transceiver, and door-lock actuator drivers in centralized BCM with multiple always-on domains. IC Role / Device Role / Timing Role: Always-on 5V regulator with ENABLE/HOLD sequencing - manages power states across ignition cycles without external latching logic. Use Value: HOLD input enables self-hold on ignition key-off; 300mA output supports multi-peripheral wake-up; low dropout sustains regulation during cranking. | Use Scenario: Supplies motor controller MCU and gate driver bias in EPS system subjected to vibration, temperature cycling, and EMI. IC Role / Device Role / Timing Role: Safety-critical 5V regulator with watchdog and RESET - monitors MCU health and forces controlled restart on software hang. Use Value: Windowed watchdog option (not used in D0) is omitted; fixed 280ms timeout ensures predictable fault response; thermal shutdown prevents failure during sustained overload. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6795TPLD0+ | Identical pinout, specs, and features - differs only in AEC-Q100 qualification status (MAX6795TPLD0+ is /V+ qualified; MAX6796TPLD0+ is standard grade) | MAX6795TPLD0+ is explicitly AEC-Q100 Grade 0 qualified; MAX6796TPLD0+ meets same electrical specs but lacks formal automotive qualification documentation | Select MAX6795TPLD0+ for production automotive programs requiring certified qualification evidence; use MAX6796TPLD0+ for industrial or pre-qualification prototyping where cost sensitivity is higher |
| TPS7B8750QKVURQ1 | 40V max input (vs. 72V), 250mA output (vs. 300mA), 35μA IQ (vs. 68μA), fixed 5V only (no adjustable option), no HOLD input | Lacks HOLD latching, reverse-battery drive (GATEP), and adjustable output - limited to simpler, lower-voltage automotive subsystems | Choose TPS7B8750QKVURQ1 only if input never exceeds 40V and no self-hold or reverse-protection is required; not suitable as drop-in replacement due to pin and feature mismatch |
Compared with MAX6795TPLD0+, MAX6796TPLD0+ offers identical performance and footprint but omits formal AEC-Q100 certification documentation - making it appropriate for cost-sensitive or non-safety-critical designs. Versus TPS7B8750QKVURQ1, MAX6796TPLD0+ provides 32V higher input tolerance, 50mA more output current, adjustable voltage, and critical HOLD/GATEP functions essential for robust automotive power architecture.
Availability
MAX6796TPLD0+ is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, body control modules, and electric power steering systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX6796TPLD0+ 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 MAX6791–MAX6796 family was engineered specifically for automotive power-supply supervision - integrating high-input-voltage regulation, ultra-low IQ, watchdog, RESET, and reverse-battery protection in a single AEC-Q100-ready package.
FAQ
What output voltage options does the MAX6796TPLD0+ support?
The MAX6796TPLD0+ supports preset output voltages of 5.0V, 3.3V, 2.5V, or 1.8V - selected by grounding the SET pin - or an adjustable output from 1.8V to 11V using an external resistive divider between OUT, SET, and GND. The "L" suffix in MAX6796TPLD0+ indicates a 5V preset configuration.
Does the MAX6796TPLD0+ include reverse-battery protection?
Yes, the MAX6796TPLD0+ includes integrated reverse-battery protection via its GATEP pin, which drives the gate of an external p-channel MOSFET. This eliminates the need for series Schottky diodes, reducing voltage drop and power loss - a critical feature for automotive systems where efficiency and thermal management are constrained.
What is the function of the HOLD pin on the MAX6796TPLD0+?
The HOLD pin on the MAX6796TPLD0+ is an active-low input that enables self-holding behavior: once the regulator is enabled, pulling HOLD low latches the output ON even if ENABLE is subsequently deasserted. Releasing HOLD (pulling high or leaving open) shuts down the regulator - allowing ignition-key-controlled power sequencing without external latching circuitry.
Is the MAX6796TPLD0+ AEC-Q100 qualified?
The MAX6796TPLD0+ is not explicitly AEC-Q100 qualified per its ordering code; however, it shares identical electrical specifications, thermal performance, and package construction with the AEC-Q100-qualified MAX6795TPLD0+/V+. For production automotive programs requiring formal qualification evidence, MAX6795TPLD0+/V+ is the certified alternative.
What watchdog timeout period is implemented in the MAX6796TPLD0+?
The MAX6796TPLD0+ implements a fixed watchdog timeout period of 280ms (minimum), as indicated by the "D0" suffix in its part number. This fixed timeout is selected by connecting the CSWT pin to the OUT pin - eliminating timing capacitor dependencies and layout sensitivity associated with adjustable variants.
MAX6796TPLD0+ 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:
- 4.625V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 35µs Typical
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6796TPLD0+ FAQ
1.How can I place an order for MAX6796TPLD0+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6796TPLD0+ 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 MAX6796TPLD0+ reliable?
The price and inventory of MAX6796TPLD0+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6796TPLD0+ is usually 5 days.
3.What payment methods are accepted for MAX6796TPLD0+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6796TPLD0+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6796TPLD0+?
MAX6796TPLD0+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6796TPLD0+ 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 MAX6796TPLD0+?
For technical support, including MAX6796TPLD0+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6796TPLD0+ requirements.
6.How does Aetrix verify that MAX6796TPLD0+ is sourced from the original manufacturer or authorized distributors?
All MAX6796TPLD0+ 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 MAX6796TPLD0+ meets industry standards.
7.What is the process for return or replacement of MAX6796TPLD0+?
All MAX6796TPLD0+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6796TPLD0+, 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 MAX6796TPLD0+ part is unused and in its original packaging.
Return procedure for MAX6796TPLD0+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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