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Analog Devices Inc./Maxim Integrated MAX6796TPLD2+
- Part No.:
- MAX6796TPLD2+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6796TPLD2+.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,139
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Product details
Overview
MAX6796TPLD2+ 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 fixed 5V output with 87.5% reset threshold (4.375V nominal) and 12.5ms reset timeout - ideal for engine control units under load-dump conditions.
For engineers reviewing the MAX6796TPLD2+ datasheet, MAX6796TPLD2+ pinout, MAX6796TPLD2+ application, or MAX6796TPLD2+ equivalent, key selection criteria include its AEC-Q100-qualified operation from –40°C to +125°C, thermal shutdown protection, watchdog disable capability, and compatibility with reverse-battery pFET gate drive via GATEP pin.
Technical Context
The MAX6796TPLD2+ implements a single LDO regulator with internal pass transistor, fixed 5V output, and precision reset monitoring referenced to 87.5% of VOUT (4.375V ±125mV). Its RESET output is push-pull active-low with guaranteed 12.5ms timeout (D2 setting), and it supports watchdog disable via WD-DIS pin or WDS0/WDS1 logic.
Supervision includes a capacitor-adjustable or fixed reset timeout (via CSRT), fixed 280ms watchdog timeout (CSWT = OUT), and power-fail detection via PFI comparator with 1.231V threshold. The HOLD input enables self-holding behavior without external circuitry, critical for ignition-controlled automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external clamping. |
| Output Voltage | Fixed 5.0V (±2.5% over temp) - meets MCU core and sensor rail requirements in ECU designs. |
| Max Output Current | 300mA continuous - sufficient to power microcontrollers, CAN transceivers, and analog front-ends. |
| Quiescent Current | 68μA typical at VIN = 8V - enables always-on functionality with minimal battery drain. |
| Reset Threshold | 87.5% of VOUT (4.375V) - ensures reliable brownout detection before MCU malfunction. |
| Reset Timeout | 12.5ms (D2 setting) - provides sufficient hold time for processor initialization after power recovery. |
| Operating Temp | –40°C to +125°C - fully specified for under-hood automotive environments. |
Pinout & Package
MAX6796TPLD2+ is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package with exposed pad (EP) connected internally to GND. The package supports up to 2.7W power dissipation and is AEC-Q100 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT | Regulator output (5V); requires ≥10μF ceramic capacitor to GND for stability. |
| 3 | SET | Feedback input; tied to GND for fixed 5V output (as configured in MAX6796TPLD2+). |
| 4 | PFO | Open-drain power-fail output; asserts low when PFI < 1.231V - used for early warning shutdown. |
| 5 | CSWT | Watchdog timeout adjust; connected to OUT for fixed 280ms timeout (default configuration). |
| 6 | CSRT | Reset timeout adjust; connected to OUT for fixed 12.5ms timeout (D2 setting). |
| 7 | GND | Power and signal reference; must be connected to PCB ground plane. |
| 8 | RESET | Push-pull active-low reset output; drives µP reset pin directly without pull-up. |
| 11 | WDI | Watchdog input; toggled by µP to prevent reset assertion - disabled if WD-DIS = low. |
| 12 | HOLD | Active-low hold enable; forces regulator ON even after ENABLE goes low - enables ignition hold circuits. |
| 16 | PFI | Power-fail comparator input; sets custom brownout threshold via resistive divider. |
| 17, 18 | IN | Main input supply; bypassed with 1μF ceramic capacitor to GND near pins. |
| 19 | GATEP | pFET gate driver; controls external high-side p-channel MOSFET for reverse-battery protection. |
| 20 | ENABLE | Active-high enable; pulled down internally (0.5μA sink) - driven high by ignition signal. |
| EP | Exposed Pad | Internally connected to GND; must be soldered to PCB ground plane for thermal and electrical integrity. |
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 driver | GATEP pin directly drives pFET gate - eliminates series diode losses and voltage drop. |
| Self-holding circuit support | HOLD pin latches regulator ON after ENABLE pulse - no external latch IC or components needed. |
| Configurable watchdog disable | WD-DIS pin or WDS0/WDS1 logic allows full watchdog deactivation during debug or safe mode. |
| AEC-Q100 qualified | Qualified per Grade 0 (–40°C to +125°C) - certified for safety-critical automotive applications. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers 32-bit MCU, CAN transceiver, and analog sensors in under-hood ECU exposed to 72V load-dump transients and –40°C cold cranking. IC Role / Device Role / Timing Role: Primary 5V LDO regulator with reset supervision and watchdog monitoring for system-level fault containment. Use Value: 68μA quiescent current prevents parasitic battery drain; 72V input range eliminates need for external TVS clamping. |
Use Scenario: Supplies power to door module microcontroller and LIN transceivers in vehicle interior, requiring ignition-controlled startup and fail-safe reset. IC Role / Device Role / Timing Role: Single-supply regulator with HOLD-enabled self-latching and push-pull RESET for deterministic MCU boot. Use Value: HOLD pin enables ignition-key-triggered power-on without external latching circuitry; 12.5ms RESET timeout ensures robust MCU initialization. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Telematics Control Unit (TCU) |
Use Scenario: Powers image signal processor and serializer in rear-view camera module mounted near exhaust, subject to high ambient temperature and vibration. IC Role / Device Role / Timing Role: High-reliability 5V regulator with thermal shutdown (165°C) and output overvoltage protection (105% VOUT). Use Value: 5mm × 5mm TQFN-EP package dissipates 2.7W - sustains 300mA output at +105°C ambient without derating. |
Use Scenario: Provides regulated 5V rail for cellular modem, GNSS receiver, and secure element in always-connected TCU with battery backup. IC Role / Device Role / Timing Role: Supervisory regulator with PFI-based power-fail warning and programmable reset timeout for graceful data save before shutdown. Use Value: PFI comparator (1.231V threshold) detects battery sag early; PFO output triggers firmware-initiated safe shutdown. |
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+ | Identical pinout, specs, and features; differs only in packaging marking (/V+ denotes AEC-Q100 qualification). | No functional difference - both qualified for automotive use; MAX6795TPLD2/V+ has explicit automotive part-number suffix. | Select MAX6795TPLD2/V+ when documentation or procurement systems require explicit /V+ suffix for AEC compliance traceability. |
| TPS7B8750QKVURQ1 | 5V fixed output, 350mA, 35μA IQ, but lacks integrated watchdog, HOLD, or GATEP driver; requires external components for equivalent functionality. | Suitable for simpler 5V regulation where supervision is handled externally; not drop-in for watchdog/HOLD/GATEP-dependent designs. | Choose TPS7B8750QKVURQ1 only if watchdog, reverse-battery protection, and self-hold are implemented elsewhere in the system. |
Compared with MAX6796TPLD2+, MAX6795TPLD2/V+ offers identical electrical and mechanical performance with formal AEC-Q100 documentation alignment, while TPS7B8750QKVURQ1 reduces supervision complexity but increases BOM count and board area for equivalent functionality.
Availability
MAX6796TPLD2+ is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera ECUs, and telematics control units requiring stable component supply across extended temperature and high-reliability automotive programs.
Supply support for MAX6796TPLD2+ 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 MAX6791–MAX6796 family was engineered specifically for high-voltage automotive power rails, integrating LDO regulation, reset supervision, watchdog timing, and reverse-battery protection into a single AEC-Q100-qualified device.
FAQ
What is the reset threshold voltage for MAX6796TPLD2+?
The MAX6796TPLD2+ has a preset reset threshold of 87.5% of its 5V output, resulting in a nominal 4.375V threshold (min 4.250V, max 4.500V over temperature). This value is factory-trimmed and does not require external resistor networks - confirmed in the Electrical Characteristics table under "Reset Threshold (Preset Output Voltage)" for 'M' grade.
Does MAX6796TPLD2+ support adjustable output voltage?
No, MAX6796TPLD2+ is configured for fixed 5V output. Its ordering code 'L' in the second placeholder (TPLD2+) specifies 5V preset output; the SET pin is internally connected to GND. Adjustable operation requires a different variant (e.g., MAX6796TPAD2+) with external resistor divider on SET.
How is the watchdog function disabled on MAX6796TPLD2+?
The watchdog timer in MAX6796TPLD2+ is disabled by driving the WD-DIS pin low. Alternatively, WDS0 and WDS1 can be set to high/high (per Table 4), but WD-DIS provides dedicated hardware disable. When disabled, WDI transitions have no effect on RESET assertion - verified in the Watchdog Timer section and Pin Description.
What package type and thermal performance does MAX6796TPLD2+ offer?
MAX6796TPLD2+ uses a 20-pin 5mm × 5mm TQFN-EP package with exposed pad soldered to GND. It dissipates up to 2.7W continuously and is rated for –40°C to +125°C operation. Thermal shutdown activates at +165°C with 20°C hysteresis - data confirmed in Absolute Maximum Ratings and Typical Operating Characteristics.
Is MAX6796TPLD2+ AEC-Q100 qualified?
Yes, MAX6796TPLD2+ is AEC-Q100 qualified. The '/V+' suffix in its full part number (MAX6796TPLD2/V+) indicates automotive qualification; the datasheet explicitly lists AEC-Q100 qualification for MAX6795TPLD2/V+ and MAX6795TPSD2/V+, and MAX6796TPLD2+ shares identical construction, testing, and qualification per the family specification.
MAX6796TPLD2+ 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:
- Push-Pull, Totem Pole
- 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)
MAX6796TPLD2+ FAQ
1.How can I place an order for MAX6796TPLD2+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6796TPLD2+ 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 MAX6796TPLD2+ reliable?
The price and inventory of MAX6796TPLD2+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6796TPLD2+ is usually 5 days.
3.What payment methods are accepted for MAX6796TPLD2+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6796TPLD2+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6796TPLD2+?
MAX6796TPLD2+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6796TPLD2+ 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 MAX6796TPLD2+?
For technical support, including MAX6796TPLD2+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6796TPLD2+ requirements.
6.How does Aetrix verify that MAX6796TPLD2+ is sourced from the original manufacturer or authorized distributors?
All MAX6796TPLD2+ 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 MAX6796TPLD2+ meets industry standards.
7.What is the process for return or replacement of MAX6796TPLD2+?
All MAX6796TPLD2+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6796TPLD2+, 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 MAX6796TPLD2+ part is unused and in its original packaging.
Return procedure for MAX6796TPLD2+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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