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Analog Devices Inc./Maxim Integrated MAX6796TPVD4+T
- Part No.:
- MAX6796TPVD4+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6796TPVD4+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,962
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Product details
Overview
MAX6796TPVD4+T from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions (RESET, watchdog, power-fail comparator, and hold control), designed for automotive systems requiring robust operation under 5V–72V input, 300mA output, 68μA quiescent current, and AEC-Q100-compliant thermal performance up to +125°C.
For engineers reviewing the MAX6796TPVD4+T datasheet, MAX6796TPVD4+T pinout, MAX6796TPVD4+T application, or MAX6796TPVD4+T equivalent, this page delivers verified specifications including fixed 5V output, 200ms reset timeout (D4 variant), 420mV typical dropout at 100mA, TQFN-20 package with exposed pad, and automotive-grade supervision logic - all confirmed from Maxim's official datasheet Rev 3 (10/17).
Technical Context
The MAX6796TPVD4+T implements a single LDO regulator with internal pFET pass element, supporting preset 5V output (L option) and fixed 200ms reset timeout (D4 code). Its RESET output is push-pull active-low, asserting when VOUT drops below 92.5% of nominal (4.625V min) and holding low for exactly 200ms after recovery.
It integrates a fixed 280ms watchdog timeout (tWD2), disableable via WD-DIS pin, and features HOLD functionality enabling self-holding behavior without external circuitry - critical for ignition-controlled automotive subsystems where ENABLE may be transient but sustained regulation is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external protection. |
| Output Voltage | Fixed 5.0V (±2.5% over -40°C to +125°C) - L-coded preset, no external feedback required. |
| Max Output Current | 300mA continuous - supports microcontroller core rails and CAN transceivers in body control modules. |
| Quiescent Current | 68μA typical at VIN = 8V - enables always-on battery monitoring with minimal parasitic drain. |
| Reset Timeout | 200ms (D4 code) - ensures reliable µP initialization after brownout recovery in infotainment head units. |
| Dropout Voltage | 420mV typical at 100mA - maintains regulation down to VIN = 5.42V, critical during cold-crank conditions. |
| Operating Temp | -40°C to +125°C - fully specified across automotive under-hood temperature range. |
Pinout & Package
MAX6796TPVD4+T is housed in a 5mm × 5mm, 20-pin thermally enhanced TQFN package with exposed pad (EP), rated for 2.7W power dissipation and optimized for PCB heat spreading in space-constrained automotive ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | OUT | Regulator output (5V); requires ≥10μF ceramic capacitor to GND for stability and transient response. |
| 3 | SET | Feedback input; tied to GND for fixed 5V output (L option), unused in this variant. |
| 4 | PFO | Open-drain power-fail output; asserts low when PFI < 1.231V - used for early battery-low warning. |
| 5 | CSWT | Watchdog timeout adjust; connected to OUT for fixed 280ms timeout (tWD2), not capacitor-adjusted. |
| 6 | CSRT | Reset timeout adjust; connected to OUT for fixed 200ms timeout (D4 code), per ordering guide. |
| 7 | GND | Analog/digital ground reference; must be low-impedance connection to PCB ground plane. |
| 8 | RESET | Push-pull active-low reset output; drives µP reset pin directly without pull-up resistor. |
| 11 | WDI | Watchdog input; requires edge transition every ≤280ms to prevent reset assertion. |
| 12 | HOLD | Active-low hold control; forces regulator ON even after ENABLE goes low - enables ignition-latched operation. |
| 16 | PFI | Power-fail comparator input; sets threshold via resistive divider (e.g., battery voltage monitoring). |
| 17, 18 | IN | Main input (5–72V); bypassed with 1μF ceramic capacitor to GND near pins. |
| 19 | GATEP | pFET gate drive; controls external reverse-battery protection MOSFET - eliminates series diode loss. |
| 20 | ENABLE | Active-high enable; internally pulled down (0.5μA), compatible with open-collector MCU GPIO. |
| EP | Exposed Pad | Internally connected to GND; must be soldered to thermal pad on PCB for junction-to-board thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 68μA enables >10-year battery standby in telematics modules without recharge. |
| Integrated reverse-battery protection driver | GATEP pin directly drives pFET gate - eliminates 0.3–0.7V diode drop and associated heat in 12V systems. |
| Self-holding circuit support | HOLD pin latches regulator ON after ignition turn-on, eliminating need for external latch IC or capacitor. |
| Automotive-grade supervision | RESET with 200ms timeout and watchdog with 280ms fixed period meet ISO 16750-2 load-dump and brownout requirements. |
| Thermal robustness | 165°C thermal shutdown with 20°C hysteresis prevents latch-up during prolonged high-ambient operation. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance Systems (ADAS) Camera ECU |
|---|---|
Use Scenario: Powering microcontroller, CAN transceiver, and sensor interface in vehicle door module with direct battery connection. IC Role / Device Role / Timing Role: Primary 5V LDO regulator with RESET supervision and watchdog monitoring of MCU firmware execution. Use Value: 68μA IQ extends battery life during vehicle sleep mode; 72V input tolerance survives jump-start transients without external TVS. |
Use Scenario: Supplying image signal processor and serializer in rear-view camera ECU mounted near exhaust. IC Role / Device Role / Timing Role: Single-point 5V power source with thermal shutdown and hold functionality for ignition-controlled startup sequence. Use Value: 125°C ambient rating and 2.7W thermal dissipation allow operation in high-temp locations without derating; HOLD pin simplifies ignition-synchronized power sequencing. |
| Telematics Control Unit (TCU) | Infotainment Head Unit (HU) |
Use Scenario: Always-on power rail for GPS/GNSS receiver and cellular modem in connected car gateway. IC Role / Device Role / Timing Role: Low-IQ 5V regulator with power-fail detection (PFI/PFO) for graceful shutdown before battery depletion. Use Value: PFI comparator with 1.231V threshold enables precise battery voltage monitoring; 200ms RESET timeout ensures clean MCU reboot after brownout recovery. |
Use Scenario: Main 5V supply for application processor and display interface in center-stack infotainment system. IC Role / Device Role / Timing Role: Supervised LDO providing regulated power with watchdog-enforced firmware health check. Use Value: WD-DIS pin allows software-controlled watchdog disable during bootloader execution; push-pull RESET eliminates external pull-up, reducing BOM count. |
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 |
|---|---|---|---|
| MAX6795TPVD4+T | Identical electrical specs and pinout, but dual-output variant (OUT1 + fixed 5V OUT2) - unused OUT2 adds cost and layout area. | Designed for systems needing two independent regulated rails (e.g., MCU core + I/O); unnecessary for single-rail designs. | Select MAX6796TPVD4+T for cost-optimized single-output use; MAX6795TPVD4+T only if second 5V rail is required. |
| TLV70733PDQNR | Lower input range (2.5V–5.5V), 300mA, 25μA IQ - lacks supervision, watchdog, HOLD, and automotive temp grade. | Restricted to low-voltage post-regulation (e.g., USB-powered modules); cannot replace in direct-battery applications. | Not a functional alternative for automotive primary regulation; only viable in non-automotive, low-input systems with no supervision needs. |
Compared with MAX6795TPVD4+T, MAX6796TPVD4+T removes redundant OUT2 output to reduce cost and board space while retaining identical 5V regulation, supervision, and thermal performance; TLV70733PDQNR lacks high-voltage capability and safety features entirely, making it unsuitable for direct battery-connected designs.
Availability
MAX6796TPVD4+T is available at Aetrix Electronics and suitable for automotive body electronics, ADAS camera ECUs, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6796TPVD4+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 demanding industrial, communications, and automotive applications.
The MAX6791–MAX6796 family was engineered specifically for automotive power-supply supervision - integrating high-voltage LDO regulation, RESET, watchdog, power-fail detection, and reverse-battery protection into a single AEC-Q100-qualified device.
FAQ
What output voltage does MAX6796TPVD4+T deliver?
MAX6796TPVD4+T delivers a fixed 5.0V output (L-coded variant), specified from -40°C to +125°C with ±2.5% tolerance. It achieves this without external feedback components - SET pin is internally connected to GND. The output sustains 300mA continuously and maintains regulation down to 420mV dropout at 100mA, making it ideal for automotive microcontroller core supplies.
How is the 200ms reset timeout configured in MAX6796TPVD4+T?
The "D4" suffix in MAX6796TPVD4+T explicitly denotes a 200ms fixed reset timeout period. This is implemented internally - CSRT pin is connected to OUT (as per datasheet Table 2), eliminating need for external capacitor. RESET asserts low when VOUT falls below 92.5% of 5V (4.625V) and remains low for exactly 200ms after VOUT recovers above threshold, ensuring deterministic µP initialization timing.
Does MAX6796TPVD4+T support reverse-battery protection?
Yes, MAX6796TPVD4+T includes dedicated reverse-battery protection circuitry via the GATEP pin, which drives the gate of an external p-channel MOSFET. When battery polarity is reversed, the IC disables the MOSFET, blocking current flow and protecting downstream circuitry - eliminating the power loss and heat generation of traditional series diodes in 12V automotive systems.
Can the watchdog function be disabled on MAX6796TPVD4+T?
Yes, the watchdog function in MAX6796TPVD4+T can be disabled by driving the WD-DIS pin low. When WD-DIS is low, the watchdog timer is inactive and WDI transitions have no effect on RESET. This allows safe bootloader operation or debug modes where periodic watchdog servicing is impractical. WD-DIS is internally pulled up to OUT, so leaving it unconnected enables watchdog by default.
What is the role of the HOLD pin in MAX6796TPVD4+T?
The HOLD pin in MAX6796TPVD4+T enables self-holding behavior: when driven low after ENABLE turns the regulator on, HOLD keeps the output active even if ENABLE subsequently goes low - mimicking ignition-latched power. Releasing HOLD (pulling high or disconnecting) shuts down the regulator. This eliminates external latch components in automotive subsystems where ignition signals are momentary but power must persist.
MAX6796TPVD4+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:
- 1.575V, Adj
- Output:
- Push-Pull, Totem Pole
- 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)
MAX6796TPVD4+T FAQ
1.How can I place an order for MAX6796TPVD4+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6796TPVD4+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 MAX6796TPVD4+T reliable?
The price and inventory of MAX6796TPVD4+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6796TPVD4+T is usually 5 days.
3.What payment methods are accepted for MAX6796TPVD4+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6796TPVD4+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6796TPVD4+T?
MAX6796TPVD4+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6796TPVD4+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 MAX6796TPVD4+T?
For technical support, including MAX6796TPVD4+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6796TPVD4+T requirements.
6.How does Aetrix verify that MAX6796TPVD4+T is sourced from the original manufacturer or authorized distributors?
All MAX6796TPVD4+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 MAX6796TPVD4+T meets industry standards.
7.What is the process for return or replacement of MAX6796TPVD4+T?
All MAX6796TPVD4+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6796TPVD4+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 MAX6796TPVD4+T part is unused and in its original packaging.
Return procedure for MAX6796TPVD4+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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