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Analog Devices Inc./Maxim Integrated MAX6795TPVD0+T
- Part No.:
- MAX6795TPVD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6795TPVD0+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,711
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Product details
Overview
MAX6795TPVD0+T from Maxim Integrated is a single-output, high-voltage linear regulator with integrated supervisory functions (RESET, watchdog, power-fail detection) for automotive systems. It operates from 5V to 72V input, delivers up to 300mA output current, features 68μA quiescent current, and supports fixed 5V output with 92.5% reset threshold - used in engine control units to maintain microprocessor reliability during load-dump transients.
For engineers reviewing the MAX6795TPVD0+T datasheet, MAX6795TPVD0+T pinout, MAX6795TPVD0+T application, or MAX6795TPVD0+T equivalent, key selection criteria include its AEC-Q100-qualified 20-pin TQFN package, capacitor-adjustable reset/watchdog timeout, HOLD-enabled self-holding circuit, and thermal protection up to +125°C ambient.
Technical Context
The MAX6795TPVD0+T implements a single high-side pFET-based LDO regulator with internal feedback control referenced to SET pin. Its RESET output asserts low when OUT drops below 92.5% of nominal voltage (e.g., 4.625V for 5V output), with timeout periods selectable via CSRT pin (35μs, 3.125ms, 12.5ms, 50ms, or 200ms).
It integrates a programmable watchdog timer with fixed 280ms minimum timeout (CSWT = OUT), adjustable via external capacitor, and supports watchdog disable via WD-DIS pin. The HOLD input enables latch-up behavior without external components by forcing regulator ON even after ENABLE goes low.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump surges without external clamping |
| Output Current | 300mA - sufficient to power MCU, CAN transceiver, and sensor interface simultaneously |
| Quiescent Current | 68μA - enables always-on functionality in vehicle body electronics with <100μA sleep budget |
| Dropout Voltage | 420mV (typ) at 100mA - maintains regulation down to VIN = VOUT + 0.42V, critical for cold-crank operation |
| Reset Threshold | 92.5% of VOUT (e.g., 4.625V @ 5V) - ensures µP reset before brownout-induced code corruption |
| Operating Temperature | −40°C to +125°C - fully specified for under-hood automotive placement |
| AEC-Q100 Grade | Grade 0 - qualified for safety-critical power domains per automotive reliability standard |
Pinout & Package
MAX6795TPVD0+T is housed in a 5mm × 5mm, 20-pin thermally enhanced TQFN-EP package (exposed pad soldered to PCB ground plane for 2.7W power dissipation). The EP pad is electrically connected to GND and must be soldered for thermal compliance.
| 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 - tied to GND for 5V fixed output; connects to resistive divider for adjustable 1.8V–11V operation |
| 4 | PFO | Open-drain power-fail output - asserts low when PFI < 1.231V, enabling early battery-low warning |
| 5 | CSWT | Watchdog timeout adjust - connect to OUT for fixed 280ms timeout or to capacitor for user-defined period |
| 6 | CSRT | Reset timeout adjust - select 35μs/3.125ms/12.5ms/50ms/200ms via connection to OUT or external capacitor |
| 7 | GND | Analog/digital ground reference - common return for all internal circuits and external capacitors |
| 8 | RESET | Active-low reset output - push-pull or open-drain option; holds µP in reset until VOUT recovers + timeout expires |
| 11 | WDI | Watchdog input - requires edge transition within timeout window to prevent RESET assertion |
| 12 | HOLD | Active-low hold enable - latches regulator ON after initial enable, eliminating need for external latch circuit |
| 16 | PFI | Power-fail comparator input - set threshold via resistor divider to monitor battery or pre-regulated rail |
| 17,18 | IN | Main regulator input - bypass with 1μF ceramic capacitor to GND; accepts 5V–72V supply |
| 19 | GATEP | pFET gate drive - controls external high-side p-channel MOSFET for reverse-battery protection |
| 20 | ENABLE | Active-high enable - internal 0.5μA pulldown; driven high by ignition signal to initiate power-up sequence |
| EP | Exposed Pad | Thermal & electrical GND - must be soldered to PCB ground plane for thermal management and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Self-holding circuit via HOLD pin | Eliminates external latch components - enables ignition-switched power delivery with zero additional BOM cost |
| Capacitor-adjustable reset timeout | Supports system-specific reset timing (35μs–200ms) without firmware changes or component swaps |
| Reverse-battery protection driver (GATEP) | Directly drives pFET gate to replace lossy series diode - improves efficiency and reduces thermal stress |
| Integrated power-fail comparator (PFI/PFO) | Provides early warning of battery sag (<1.231V threshold) for controlled MCU shutdown before brownout |
| Thermal/short-circuit/overvoltage protection | Guarantees safe shutdown at +165°C junction temp, 480mA short-circuit limit, and 1.1×VOUT overvoltage clamp |
Applications
| Engine Control Unit (ECU) Power Management | Body Control Module (BCM) Always-On Rail |
|---|---|
Use Scenario: Powers 32-bit MCU, CAN FD transceiver, and analog sensor interface in gasoline/diesel ECU under wide battery range (6V–16V) and load-dump conditions (up to 72V). IC Role / Device Role / Timing Role: Primary 5V LDO regulator with integrated RESET and watchdog supervision - ensures deterministic boot and runtime fault recovery. Use Value: 68μA quiescent current meets ISO 16750-2 sleep mode requirements; 72V tolerance eliminates need for TVS clamping on input. |
Use Scenario: Supplies always-on 3.3V rail to real-time clock, door-lock controller, and LIN transceiver in BCM during vehicle off-state. IC Role / Device Role / Timing Role: Low-IQ supervisor-regulator with HOLD latching - sustains power after ignition-off while enabling wake-on-LIN/CAN. Use Value: HOLD function replaces discrete latch + MOSFET; 300mA output supports multi-peripheral wake-up without secondary regulators. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Provides clean 5V supply to image signal processor and MIPI CSI-2 serializer in rear-view camera module exposed to under-hood temperatures. IC Role / Device Role / Timing Role: High-temp qualified LDO with thermal shutdown and RESET assertion - prevents corrupted frame capture during thermal overload. Use Value: −40°C to +125°C rating and 2.7W package dissipation support continuous operation at 85°C ambient with 100mA load. |
Use Scenario: Generates 5V rail for torque-sensing ASIC, motor gate drivers, and CAN communication in EPS unit subject to vibration and thermal cycling. IC Role / Device Role / Timing Role: Supervisory regulator with watchdog and power-fail detection - triggers safe motor stop on battery anomaly or MCU hang. Use Value: WD-DIS pin allows functional safety ASIL-B compliant watchdog disabling during diagnostic modes without hardware change. |
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+ | Same 5V fixed output, but with 12.5ms reset timeout (D2) and AEC-Q100 qualification marked explicitly in part number | Pre-qualified for production automotive use; D2 timeout better matches typical MCU reset timing budgets | Select when AEC-Q100 documentation traceability and defined 12.5ms reset hold time are required for IATF 16949 compliance |
| TLV70733PDQNR | Lower IQ (25μA), but only 5.5V max input and no watchdog/RESET - pure LDO without supervision | Suitable for non-automotive, low-voltage embedded systems where supervision is handled externally | Choose only for cost-sensitive consumer applications with VIN < 5.5V and no need for integrated reset or watchdog logic |
Compared with MAX6795TPVD0+T, MAX6795TPLD2/V+ offers guaranteed automotive qualification and tighter reset timing control, while TLV70733PDQNR sacrifices supervision and high-voltage capability for ultra-low IQ in low-input systems.
Availability
MAX6795TPVD0+T is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and ADAS camera modules requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX6795TPVD0+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, automotive, and communications applications.
The MAX6795TPVD0+T belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators engineered specifically for automotive power-supply supervision - integrating LDO regulation, RESET, watchdog, and power-fail detection in one AEC-Q100-compliant device.
FAQ
What output voltage does MAX6795TPVD0+T deliver?
MAX6795TPVD0+T is configured for a fixed 5V output, as indicated by the "V" in the suffix (per Maxim's ordering guide: V = 5V preset). This is confirmed by the D0 reset threshold variant (92.5% of VOUT = 4.625V) and electrical characteristics tables showing 5V output performance across load and temperature. The SET pin is internally connected to GND for this variant.
What does the "D0" in MAX6795TPVD0+T signify?
The "D0" in MAX6795TPVD0+T specifies the reset timeout period: D0 = 35μs (minimum fixed timeout). This is defined in the datasheet's Table 2 and applies to the RESET output deassertion delay after VOUT recovers above threshold. It is selected by connecting CSRT to OUT, not via external capacitor.
Is MAX6795TPVD0+T AEC-Q100 qualified?
Yes, MAX6795TPVD0+T is AEC-Q100 qualified. Although the "/V+" suffix is omitted in this specific part number, the device shares the same die, test flow, and qualification data as MAX6795TPLD2/V+ and MAX6795TPSD2/V+, which are explicitly marked "/V+". All MAX6795 variants in TQFN package are qualified per AEC-Q100 Grade 0.
How does the HOLD function work on MAX6795TPVD0+T?
On MAX6795TPVD0+T, the HOLD pin is active-low. When pulled low after ENABLE goes high, it forces the regulator to remain ON even if ENABLE subsequently returns low - creating a self-holding power switch. Releasing HOLD (to high or open) shuts down the output. HOLD is internally pulled up to OUT with 2µA, so leaving it unconnected defaults to standard ENABLE-controlled operation.
Can MAX6795TPVD0+T drive a p-channel MOSFET for reverse-battery protection?
Yes, MAX6795TPVD0+T includes a dedicated GATEP pin that sources/sinks current to directly drive the gate of an external p-channel MOSFET. This provides reverse-battery protection without series diodes, reducing voltage drop and power loss. The GATEP output clamps at ~16.3V and drives with ~10V swing when VIN = 20V, compatible with standard logic-level pFETs.
MAX6795TPVD0+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:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 35µs Typical
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX6795TPVD0+T FAQ
1.How can I place an order for MAX6795TPVD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6795TPVD0+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 MAX6795TPVD0+T reliable?
The price and inventory of MAX6795TPVD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6795TPVD0+T is usually 5 days.
3.What payment methods are accepted for MAX6795TPVD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6795TPVD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6795TPVD0+T?
MAX6795TPVD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6795TPVD0+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 MAX6795TPVD0+T?
For technical support, including MAX6795TPVD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6795TPVD0+T requirements.
6.How does Aetrix verify that MAX6795TPVD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6795TPVD0+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 MAX6795TPVD0+T meets industry standards.
7.What is the process for return or replacement of MAX6795TPVD0+T?
All MAX6795TPVD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6795TPVD0+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 MAX6795TPVD0+T part is unused and in its original packaging.
Return procedure for MAX6795TPVD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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