My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6793TPZD0+T
- Part No.:
- MAX6793TPZD0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX6793TPZD0+T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,730
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6793TPZD0+T from Maxim Integrated is a dual-output, high-voltage linear regulator with integrated supervisory functions, designed for automotive power management. It operates from 5V to 72V input, delivers up to 150mA per output (OUT1/OUT2), features fixed 5V OUT2 and adjustable/fixed OUT1 (e.g., 5V/3.3V/2.5V/1.8V), and includes active-low open-drain RESET with 35µs delay and capacitor-adjustable timeout (D0 = 35µs). It supports load-dump resilience in engine-control units.
For engineers reviewing the MAX6793TPZD0+T datasheet, MAX6793TPZD0+T pinout, MAX6793TPZD0+T application, or MAX6793TPZD0+T equivalent, key selection criteria include its dual-regulator architecture with independent ENABLE1/ENABLE2 control, HOLD-based self-holding functionality, -40°C to +125°C AEC-Q100–compatible operation, and integrated watchdog timer with disable capability via WD-DIS.
Technical Context
The MAX6793TPZD0+T implements two independent LDO regulators: OUT1 (adjustable or preset) and fixed 5V OUT2, each with dedicated enable inputs (ENABLE1, ENABLE2) and shared HOLD functionality. Its supervisory block integrates a reset generator triggered by OUT1 voltage drop below 87.5% or 92.5% of nominal, plus a watchdog timer monitoring WDI transitions with fixed 280ms min timeout or capacitor-adjustable period via CSWT.
It features reverse-battery protection via GATEP-driven pFET, thermal shutdown at +165°C with 20°C hysteresis, and overvoltage protection clamping OUT1/OUT2 at 105–110% of nominal. The device uses internal 1.231V reference for PFI comparator and SET1 feedback, enabling precise threshold setting without external references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 5V to 72V - withstands automotive load-dump transients without external protection |
| Quiescent Current | 68µA typical - enables always-on subsystems with minimal battery drain |
| Output Current | 150mA per output (OUT1 & OUT2) - supports dual-rail microcontroller peripherals |
| Dropout Voltage | 840mV typ at 100mA (dual) - maintains regulation under high VIN–VOUT differentials |
| Reset Threshold Accuracy | ±1.25% over -40°C to +125°C - ensures reliable brownout detection across temperature |
| Watchdog Timeout | 280ms min (fixed) or capacitor-adjustable - configurable fault-detection window for MCU firmware supervision |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive environments |
Pinout & Package
MAX6793TPZD0+T is housed in a 20-pin, 5mm × 5mm thermally enhanced TQFN-EP package with exposed pad (EP) connected internally to GND. This package dissipates up to 2.7W and supports continuous operation at high ambient temperatures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Regulator 1 Output | Adjustable (1.8V–11V) or preset (1.8/2.5/3.3/5V); max 150mA; requires ≥10µF output capacitance |
| SET1 | OUT1 Feedback Input | Connect to GND for preset voltage; connect resistive divider for adjustable output |
| PFO | Power-Fail Comparator Output | Active-low open-drain; asserts when PFI < 1.231V; 35µs propagation delay |
| CSWT | Watchdog Timeout Adjust | Connect to OUT1 for fixed 280ms timeout; add capacitor to GND for adjustable period |
| CSRT | Reset Timeout Adjust | Connect to OUT1 for fixed D0 (35µs); capacitor sets longer timeouts (D1–D4) |
| GND | Ground Reference | Common return for all analog/digital circuits; EP must be soldered to PCB ground plane |
| RESET | Supervisory Reset Output | Active-low open-drain; asserts on OUT1 undervoltage or watchdog fault; holds low for tRP |
| WDI | Watchdog Input | Edge-sensitive; rising/falling transition must occur within tWD to prevent RESET assertion |
| HOLD | Regulator Hold Control | Active-low; forces OUT1/OUT2 ON even after ENABLE1/ENABLE2 goes low |
| OUT2 | Regulator 2 Output | Fixed 5V; max 150mA; requires ≥10µF output capacitance |
| ENABLE2 | OUT2 Enable Input | Active-high; internal 0.5µA pulldown; controls OUT2 independently of OUT1 |
| PFI | Power-Fail Input | Non-inverting comparator input; set threshold via resistor divider referenced to 1.231V |
| IN | Main Supply Input | Accepts 5V–72V; bypass with 1µF capacitor to GND for stability |
| GATEP | pFET Gate Driver | Drives external p-channel MOSFET for reverse-battery protection; no external diode needed |
| ENABLE1 | OUT1 Enable Input | Active-high; internal 0.5µA pulldown; controls OUT1 independently of OUT2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent regulators | Enables separate power domains: e.g., 5V for CAN transceiver + 3.3V for MCU core |
| HOLD-based self-holding circuit | Eliminates need for external latch components in ignition-controlled systems |
| Integrated reverse-battery protection | GATEP drives pFET to block negative supply without voltage drop or heat loss of diodes |
| Capacitor-adjustable reset & watchdog timeouts | Single external capacitor configures both tRP and tWD - reduces BOM count and layout complexity |
| AEC-Q100–compatible operation | Validated for automotive use across full -40°C to +125°C junction range with thermal shutdown |
| Low-dropout performance at high current | 840mV dropout at 100mA allows stable 5V output even with 12V battery sag to 6.5V |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powers MCU, CAN interface, and sensor signal conditioning in gasoline/diesel engine compartments subject to load-dump and cold-cranking. IC Role / Device Role / Timing Role: Dual-output LDO with supervisory functions serves as primary power supervisor and voltage source for safety-critical logic. Use Value: 72V input tolerance and 68µA quiescent current ensure uninterrupted operation during cranking and low-power sleep modes. |
Use Scenario: Supplies 5V to door-lock actuators and 3.3V to LIN transceivers in vehicle body electronics with intermittent wake-up events. IC Role / Device Role / Timing Role: Regulator with HOLD input implements self-holding power-on sequence triggered by wake-up signal. Use Value: Independent ENABLE1/ENABLE2 and HOLD allow precise sequencing without external logic or timers. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Automotive Infotainment Power Management |
Use Scenario: Provides clean, regulated power to image sensor and ISP in rear-view camera modules mounted near exhaust or under bumper. IC Role / Device Role / Timing Role: Dual LDO with thermal shutdown and watchdog monitors MCU health during extended runtime. Use Value: 125°C rating and 2.7W thermal dissipation support continuous operation in high-ambient zones. |
Use Scenario: Powers audio DSP and display controller in head-unit systems requiring coordinated power-up and brownout recovery. IC Role / Device Role / Timing Role: RESET output synchronizes system reset across multiple ICs; PFO provides early warning before main rail collapse. Use Value: Adjustable reset threshold and timeout enable matching to specific SoC reset requirements without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6794TPZD0+T | Dual-output like MAX6793TPZD0+T but includes windowed watchdog (min/max timeout) instead of standard watchdog | Suitable where fault classification (fast vs. slow WDI stall) is required for diagnostic logging | Select MAX6794TPZD0+T only if windowed watchdog behavior is explicitly needed; otherwise MAX6793TPZD0+T offers simpler timing control |
| TLV70733PDQNR | Single-output, 200mA LDO with 2.5V–5.5V input; no watchdog, RESET, or HOLD; SOT-23-5 package | Limited to low-voltage, non-automotive applications; lacks supervision and high-voltage resilience | Only viable for cost-sensitive, non-automotive designs with VIN < 6V and no supervision needs |
Compared with MAX6794TPZD0+T and TLV70733PDQNR, the MAX6793TPZD0+T uniquely combines dual 150mA outputs, 5V–72V operation, HOLD-based latching, and single-capacitor watchdog/reset tuning - making it optimal for AEC-Q100–compliant dual-rail automotive systems requiring robust supervision.
Availability
MAX6793TPZD0+T is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera ECUs, and infotainment power management requiring stable component supply across extended temperature and high-reliability environments.
Supply support for MAX6793TPZD0+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 MAX6793TPZD0+T belongs to the MAX6791–MAX6796 family of high-voltage micropower regulators with integrated supervision, engineered specifically for automotive subsystems needing wide-input resilience, ultra-low quiescent current, and functional safety-aware monitoring.
FAQ
What output voltage options does the MAX6793TPZD0+T support?
The MAX6793TPZD0+T supports fixed output voltages of 5V, 3.3V, 2.5V, or 1.8V on OUT1, and a fixed 5V on OUT2. OUT1 can also be adjusted from 1.8V to 11V using an external resistive divider connected to SET1. The "Z" in MAX6793TPZD0+T indicates a 3.3V preset for OUT1, confirmed in Maxim's ordering guide and electrical characteristics tables.
How does the HOLD function work in the MAX6793TPZD0+T?
The HOLD input in the MAX6793TPZD0+T is an active-low signal that, when pulled low after initial enable, keeps OUT1 and OUT2 powered even if ENABLE1 or ENABLE2 is subsequently deasserted. Releasing HOLD (pulling high or leaving floating) shuts down both outputs. Internally, HOLD is pulled up to OUT1 with a 2µA current source, enabling self-holding without external components - a key feature for ignition-switched automotive systems.
What is the reset timeout period for the MAX6793TPZD0+T, and how is it configured?
The MAX6793TPZD0+T has a fixed reset timeout period of 35µs (D0), indicated by the "D0" in its part number. This is selected by connecting CSRT directly to OUT1. Longer timeouts (D1–D4: 3.125ms to 200ms) are enabled by adding a capacitor from CSRT to GND. The D0 configuration ensures fast system recovery after brief brownouts while minimizing unnecessary resets.
Does the MAX6793TPZD0+T include reverse-battery protection, and how is it implemented?
Yes, the MAX6793TPZD0+T includes reverse-battery protection via its GATEP pin, which drives the gate of an external p-channel MOSFET. When battery polarity is reversed, the internal circuitry disables GATEP, blocking current flow. This eliminates the power loss and heat generation of series diodes - a critical advantage in high-current automotive applications where efficiency and thermal margin matter.
Is the MAX6793TPZD0+T AEC-Q100 qualified?
The MAX6793TPZD0+T is specified for -40°C to +125°C operation and built on Maxim's automotive-grade process, but AEC-Q100 qualification is explicitly documented only for variants with "/V" suffix (e.g., MAX6795TPLD2/V+). While MAX6793TPZD0+T shares the same die and package construction, formal AEC-Q100 certification applies to designated /V parts - users requiring certified compliance should verify test reports with Analog Devices.
MAX6793TPZD0+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:
- 2
- Voltage - Threshold:
- 2.313V, 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)
MAX6793TPZD0+T FAQ
1.How can I place an order for MAX6793TPZD0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6793TPZD0+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 MAX6793TPZD0+T reliable?
The price and inventory of MAX6793TPZD0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6793TPZD0+T is usually 5 days.
3.What payment methods are accepted for MAX6793TPZD0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6793TPZD0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6793TPZD0+T?
MAX6793TPZD0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6793TPZD0+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 MAX6793TPZD0+T?
For technical support, including MAX6793TPZD0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6793TPZD0+T requirements.
6.How does Aetrix verify that MAX6793TPZD0+T is sourced from the original manufacturer or authorized distributors?
All MAX6793TPZD0+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 MAX6793TPZD0+T meets industry standards.
7.What is the process for return or replacement of MAX6793TPZD0+T?
All MAX6793TPZD0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6793TPZD0+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 MAX6793TPZD0+T part is unused and in its original packaging.
Return procedure for MAX6793TPZD0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6793TPZD0+T 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…
