My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6388XS29D2-T
- Part No.:
- MAX6388XS29D2-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6388XS29D2-T.pdf
- Description:
- IC SUPERVISOR 2 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,936
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6388XS29D2-T from Maxim Integrated is a low-power microprocessor supervisory circuit with active-high push-pull reset output, factory-set 2.93V VCC reset threshold (±2.5% over –40°C to +125°C), 20ms minimum reset timeout, and auxiliary RESET IN input for dual-voltage monitoring. It operates from 1.0V to 5.5V supply and consumes only 3μA at 1.8V, enabling use in battery-powered systems requiring reliable power-on reset and brownout protection.
For engineers reviewing the MAX6388XS29D2-T datasheet, MAX6388XS29D2-T pinout, MAX6388XS29D2-T application, or MAX6388XS29D2-T equivalent, this device delivers precise voltage supervision with dual-input capability, guaranteed reset validity down to VCC = 1V, and automotive-grade AEC-Q100 qualification - critical for embedded controllers, portable instrumentation, and dual-rail power systems.
Technical Context
The MAX6388XS29D2-T integrates a precision bandgap reference and comparator to monitor VCC against a fixed 2.93V threshold while simultaneously accepting an external voltage via RESET IN, compared to an internal 1.27V reference. Its reset assertion logic triggers on either input falling below its respective threshold, with independent timing control ensuring deterministic behavior during power transients.
It features a push-pull active-high RESET output that transitions high during fault conditions and remains asserted for exactly 20ms after recovery, with guaranteed valid state down to VCC = 1V. The device uses BiCMOS process technology and supports operation across –40°C to +125°C, meeting AEC-Q100 requirements for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.93V nominal (min 2.85V, max 3.00V); ±2.5% accuracy over full temperature range ensures robust brownout detection in noisy environments. |
| Reset Timeout Period | 20ms minimum; guarantees μP remains held in reset long enough for stable power rail settling before code execution resumes. |
| Supply Current | 3μA at VCC = 1.8V; enables multi-year battery life in always-on portable equipment without compromising supervision reliability. |
| Operating Voltage Range | 1.0V to 5.5V; supports wide-input industrial and automotive supplies while maintaining valid reset output down to 1V. |
| RESET Output Type | Active-high push-pull; eliminates need for external pullup resistor and drives high-impedance loads directly with VOH ≥ 0.8×VCC. |
| RESET IN Threshold | 1.27V nominal (±2.5% over –40°C to +125°C); allows user-configurable secondary voltage monitoring via external resistor divider. |
| Temperature Range | –40°C to +125°C; qualified per AEC-Q100 Grade 1, suitable for under-hood automotive and industrial control applications. |
Pinout & Package
MAX6388XS29D2-T is housed in a RoHS-compliant 4-pin SC70 package (outline 21-0098, land pattern 90-0187), measuring 2.0mm × 2.1mm × 0.95mm. This compact footprint supports high-density PCB layouts in space-constrained portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main supply input and primary voltage monitor; powers internal circuitry and sets reference for VCC reset comparator. |
| 2 | RESET | Active-high push-pull output; asserts high during VCC or RESET IN undervoltage and holds for full 20ms timeout. |
| 3 | GND | Analog/digital ground reference; must be connected to system ground plane for accurate threshold sensing and noise immunity. |
| 4 | RESET IN | Auxiliary voltage monitor input; high-impedance node compared to 1.27V internal reference for dual-supply supervision. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-voltage supervision | Monitors both VCC (2.93V) and external RESET IN (1.27V reference) independently - enables single-chip monitoring of core and I/O rails. |
| Negative-going VCC transient immunity | Rejects short-duration glitches (e.g., <1µs at 100mV overdrive); prevents spurious resets in electrically noisy automotive environments. |
| Guaranteed reset validity down to VCC = 1V | Ensures predictable logic state on RESET pin even during deep brownout - critical for fail-safe shutdown sequencing. |
| Low quiescent current | 3μA at 1.8V supply enables integration into always-on subsystems without impacting battery runtime. |
| AEC-Q100 qualification | Validated for automotive Grade 1 (–40°C to +125°C), supporting deployment in engine control units, ADAS sensors, and infotainment power domains. |
Applications
| Industrial Controller Power Monitoring | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Supervises 3.3V main supply and 1.2V core rail in programmable logic controllers exposed to wide ambient temperatures and EMI. IC Role / Device Role / Timing Role: Dual-threshold supervisor asserting active-high reset to ARM Cortex-M7 MCU during undervoltage on either rail, with 20ms hold time. Use Value: Eliminates need for two discrete supervisors, reducing BOM count and PCB area while maintaining AEC-Q100 compliance. |
Use Scenario: Monitors battery-backed 5V I/O supply and 2.5V microcontroller core voltage in BCMs operating near engine compartments. IC Role / Device Role / Timing Role: Provides synchronized reset assertion on either supply failure, with guaranteed operation down to VCC = 1V during cranking events. Use Value: Prevents MCU lockup during cold-cranking voltage sag (<6V), improving system reliability without external level-shifting. |
| Portable Medical Instrumentation | Dual-Rail FPGA Configuration |
|
Use Scenario: Ensures safe startup and shutdown sequencing in handheld ultrasound devices powered by single-cell Li-ion batteries (2.7–4.2V). IC Role / Device Role / Timing Role: Supervises main 3.3V analog supply and 1.8V digital domain, triggering reset if either drops below threshold during battery discharge. Use Value: Enables deterministic boot-up even as battery voltage decays, avoiding corrupted ADC sampling or memory initialization errors. |
Use Scenario: Validates both 1.2V FPGA core and 3.3V I/O bank voltages before releasing configuration reset in industrial FPGA-based motion controllers. IC Role / Device Role / Timing Role: Uses RESET IN to monitor core rail while VCC monitors I/O rail; asserts reset until both stabilize above thresholds. Use Value: Prevents partial configuration or metastability by enforcing strict dual-rail power-good sequencing prior to FPGA startup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6388LT29D2-T | Same electrical specs but in 6-pin µDFN package; higher thermal resistance (θJA = 477°C/W vs. 322.6°C/W for SC70). | Preferred for thermally demanding applications where board layout allows larger footprint and better heat dissipation. | Select when PCB thermal management requires lower junction temperature rise or when µDFN is already standardized in design. |
| TLV803EB29DBZR | Single-supply only (no RESET IN); 2.93V threshold with 20ms timeout; 1.8µA ICC at 1.8V; SOT-23-3 package. | Lacks dual-voltage monitoring capability; suited for cost-sensitive, single-rail applications where RESET IN is unnecessary. | Choose when only VCC supervision is required and smallest possible footprint (SOT-23) is prioritized over auxiliary monitoring. |
Compared with MAX6388XS29D2-T, the LT29D2-T offers identical supervision functionality in a thermally superior µDFN package, while TLV803EB29DBZR reduces size and cost at the expense of dual-input capability - guiding selection based on thermal, feature, and footprint trade-offs.
Availability
MAX6388XS29D2-T is available at Aetrix Electronics and suitable for industrial controllers, automotive body electronics, portable medical instruments, and dual-rail FPGA systems requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for MAX6388XS29D2-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 and mixed-signal ICs for demanding industrial, automotive, and computing applications, emphasizing low power, high reliability, and extended temperature operation.
The MAX6381–MAX6390 family was engineered specifically for microprocessor reset supervision in space- and power-constrained systems, combining dual-voltage monitoring, ultra-low ICC, and AEC-Q100 qualification in miniature SC70/µDFN packages.
FAQ
What is the exact reset threshold voltage of MAX6388XS29D2-T and how stable is it over temperature?
The MAX6388XS29D2-T has a factory-set VCC reset threshold of 2.93V nominal, with min/max limits of 2.85V and 3.00V at +25°C. Over the full –40°C to +125°C operating range, the threshold maintains ±2.5% accuracy, meaning it stays within 2.85V–3.00V across all temperatures - critical for consistent brownout detection in automotive and industrial environments where MAX6388XS29D2-T is deployed.
Does MAX6388XS29D2-T support monitoring of two independent power rails?
Yes, MAX6388XS29D2-T supports dual-rail supervision: VCC is monitored against its fixed 2.93V threshold, while the RESET IN pin compares an external voltage to an internal 1.27V reference. Either condition triggering causes the active-high RESET output to assert, making MAX6388XS29D2-T ideal for systems requiring coordinated reset of core and I/O supplies, such as FPGAs or multi-domain microcontrollers.
What is the function and timing behavior of the RESET output on MAX6388XS29D2-T?
The RESET output of MAX6388XS29D2-T is an active-high push-pull driver. It goes high when VCC falls below 2.93V or RESET IN falls below 1.27V, and remains high for a guaranteed minimum of 20ms after both inputs recover above their thresholds. This ensures the connected microprocessor remains held in reset long enough for stable power rail settling before boot begins - a key timing guarantee built into MAX6388XS29D2-T's internal timer.
Is MAX6388XS29D2-T qualified for automotive applications?
Yes, MAX6388XS29D2-T is AEC-Q100 qualified (Grade 1, –40°C to +125°C) and marked with "/V" in ordering nomenclature variants. Its BiCMOS process, guaranteed performance across extreme temperatures, negative-going transient immunity, and validated reliability make it suitable for automotive body control modules, ADAS sensors, and infotainment power domains where MAX6388XS29D2-T provides certified reset assurance.
What package type and dimensions does MAX6388XS29D2-T use?
MAX6388XS29D2-T is supplied in a 4-pin SC70 package (outline 21-0098), measuring 2.0mm × 2.1mm × 0.95mm with 0.65mm pin pitch. This RoHS-compliant, lead-free package supports high-density PCB layouts and is compatible with standard reflow soldering profiles up to +260°C, making MAX6388XS29D2-T suitable for automated manufacturing in portable and automotive electronics.
MAX6388XS29D2-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Multi-Voltage Supervisor
- Number of Voltages Monitored:
- 2
- Voltage - Threshold:
- 2.93V, Adj
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 20ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6388XS29D2-T FAQ
1.How can I place an order for MAX6388XS29D2-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6388XS29D2-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 MAX6388XS29D2-T reliable?
The price and inventory of MAX6388XS29D2-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6388XS29D2-T is usually 5 days.
3.What payment methods are accepted for MAX6388XS29D2-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6388XS29D2-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6388XS29D2-T?
MAX6388XS29D2-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6388XS29D2-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 MAX6388XS29D2-T?
For technical support, including MAX6388XS29D2-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6388XS29D2-T requirements.
6.How does Aetrix verify that MAX6388XS29D2-T is sourced from the original manufacturer or authorized distributors?
All MAX6388XS29D2-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 MAX6388XS29D2-T meets industry standards.
7.What is the process for return or replacement of MAX6388XS29D2-T?
All MAX6388XS29D2-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6388XS29D2-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 MAX6388XS29D2-T part is unused and in its original packaging.
Return procedure for MAX6388XS29D2-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6388XS29D2-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…
