My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6467US29D3-T
- Part No.:
- MAX6467US29D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
MAX6467US29D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:5,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6467US29D3-T from Maxim Integrated is a microprocessor supervisory reset circuit in SOT143-4 package, monitoring +2.925V supply with ±1.5% threshold accuracy at +25°C, 150ms minimum VCC reset timeout, active-low open-drain RESET output, and edge-triggered manual reset input. It ensures reliable power-on reset and brownout recovery in automotive-grade embedded systems.
For engineers reviewing the MAX6467US29D3-T datasheet, MAX6467US29D3-T pinout, MAX6467US29D3-T application, or MAX6467US29D3-T equivalent, key selection criteria include factory-trimmed 2.925V threshold, -40°C to +125°C operation, 3µA supply current at 1.8V, immunity to <100ns MR glitches, and compatibility with systems requiring valid RESET down to VCC = +1V.
Technical Context
The MAX6467US29D3-T implements a precision bandgap-based voltage monitor with temperature-compensated threshold detection across -40°C to +125°C. Its internal one-shot timer initiates fixed 150ms (min) reset assertion on VCC drop below 2.925V or on MR falling edge, independent of MR pulse width.
It features an internal 1.5kΩ MR pullup resistor, accepts TTL/CMOS logic levels on MR, and guarantees RESET low-state validity as long as VCC ≥ +1V. The open-drain RESET output requires external pullup and supports sink currents up to 80µA at 0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.925V (typ), ±1.5% tolerance at +25°C; monitors +3.0V supply rails with margin |
| VCC Operating Range | +1.2V to +5.5V; functional down to +1.0V for RESET validity |
| Reset Timeout Period | 150ms (min), 300ms (max); ensures µP reset hold time meets ARM Cortex-M or PIC timing requirements |
| Supply Current | 3µA at VCC = +1.8V; enables ultra-low-power battery-backed applications |
| MR Glitch Rejection | 100ns; rejects switch bounce and EMI-induced noise on manual reset line |
| MR Pullup Resistance | 500Ω to 3kΩ internal; eliminates need for external pullup when MR is unused |
| Operating Temperature | -40°C to +125°C; qualified for under-hood automotive and industrial control environments |
Pinout & Package
MAX6467US29D3-T uses a 4-pin SOT143-4 surface-mount package (3.0mm × 1.7mm × 1.3mm height), optimized for space-constrained automotive and portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - GND | Ground reference | Return path for internal biasing and RESET sink current; must be connected directly to system ground plane |
| 2 - RESET | Active-low open-drain output | Drives low during reset; requires external pullup (typically 10–100kΩ) to host VCC or separate rail |
| 3 - MR | Edge-triggered manual reset input | Falling edge initiates one-shot 150ms reset pulse; internally pulled up to VCC (1.5kΩ) |
| 4 - VCC | Power supply & monitored rail | Supplies device and serves as monitored voltage; bypass with 0.1µF ceramic capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Precision factory-set 2.925V threshold | Eliminates external resistor divider and calibration; supports +3.0V systems with ±3% supply tolerance |
| Edge-triggered MR with one-shot timing | Ensures consistent 150ms reset pulse regardless of pushbutton press duration or contact bounce |
| Valid RESET output down to VCC = +1V | Guarantees clean reset deassertion during deep brownout, preventing µP lockup |
| 100ns MR glitch rejection | Rejects ESD transients and PCB noise without external RC filtering |
| Ultra-low 3µA supply current at 1.8V | Extends battery life in always-on monitoring circuits (e.g., telematics wake-up supervisors) |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Monitors 3.3V microcontroller supply in engine management system exposed to load dump and cold-crank conditions. IC Role / Device Role / Timing Role: Supervisory reset generator asserting active-low RESET during VCC dip below 2.925V or on diagnostic MR trigger. Use Value: Prevents erratic MCU behavior during 12V battery sag; 150ms timeout aligns with ISO 16750-2 cold-crank recovery timing. | Use Scenario: Ensures deterministic restart of ARM-based I/O processor after field wiring fault or hot-swap event. IC Role / Device Role / Timing Role: Edge-triggered manual reset supervisor providing glitch-immune reset initiation via front-panel button. Use Value: Internal 1.5kΩ MR pullup removes external component; 100ns glitch rejection avoids false resets from relay coil flyback. |
| Medical Infusion Pump Controller | DSL Modem Power Sequencing |
Use Scenario: Guarantees safe shutdown and restart of safety-critical pump motor controller during AC power interruption. IC Role / Device Role / Timing Role: Brownout detector with 2.925V threshold and 150ms reset hold, interfacing to TI MSP430F5xx reset input. Use Value: Valid RESET down to VCC = +1V ensures reset remains asserted until backup capacitor fully discharges-critical for fail-safe state retention. | Use Scenario: Coordinates power-up sequencing between ADSL PHY and MIPS-based baseband processor. IC Role / Device Role / Timing Role: Voltage supervisor initiating synchronized reset across dual-rail (3.3V/1.8V) subsystems via shared MR line. Use Value: Factory-trimmed threshold eliminates calibration drift over 10-year product lifetime; SC70/SOT143 footprint allows placement near µP. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX811SEUS+T | Fixed 2.93V threshold, 140ms reset timeout, same SOT143-4 package, no MR debounce period spec | Lacks guaranteed MR rising debounce (tDEB = 150ms min for MAX6467US29D3-T); less robust against switch bounce | Select MAX6467US29D3-T where MR reliability in high-vibration environments (e.g., automotive dash) is critical |
| TPS3808G33DBVR | 2.93V threshold, 200ms timeout, push-pull RESET, 1.5µA quiescent current, same SOT23-5 pinout (not pin-compatible) | Requires PCB redesign (5-pin vs. 4-pin); push-pull eliminates external pullup but increases standby current in some topologies | Choose MAX6467US29D3-T for drop-in replacement in existing SOT143 layouts with open-drain interface requirements |
Compared with MAX811SEUS+T, MAX6467US29D3-T provides tighter MR debounce control and broader temperature validation; versus TPS3808G33DBVR, it retains legacy 4-pin footprint and open-drain flexibility at slightly higher supply current.
Availability
MAX6467US29D3-T is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC modules, medical infusion pumps, DSL modems, and GPS navigation systems requiring stable component supply across extended temperature ranges.
Supply support for MAX6467US29D3-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 MAX6467/MAX6468 family delivers automotive-grade microprocessor supervisory circuits with factory-trimmed thresholds and edge-triggered manual reset-engineered for reliability in harsh environments where power integrity is mission-critical.
FAQ
What is the exact reset threshold voltage of the MAX6467US29D3-T?
The MAX6467US29D3-T has a factory-trimmed nominal reset threshold of 2.925V, with ±1.5% tolerance at +25°C and ±2.5% over -40°C to +85°C. This value is confirmed in the Reset Threshold table of the official datasheet and applies specifically to the "29" suffix variant, not generic MAX6467 devices.
Does the MAX6467US29D3-T support operation down to 1.0V VCC?
Yes, the MAX6467US29D3-T guarantees functional RESET output validity as long as VCC remains above +1.0V. Below this level, RESET behavior is not specified. This feature ensures controlled reset deassertion during deep brownout events common in automotive stop-start systems.
Is the MR input of the MAX6467US29D3-T internally pulled up?
Yes, the MAX6467US29D3-T includes an internal 1.5kΩ pullup resistor from MR to VCC. This allows the MR pin to be left unconnected when manual reset is unused, eliminating the need for an external pullup component in most designs.
What is the reset timeout period for the MAX6467US29D3-T?
The MAX6467US29D3-T has a D3-suffix reset timeout period of 150ms (minimum), 225ms (typical), and 300ms (maximum). This fixed one-shot duration applies to both VCC-initiated and MR-initiated reset assertions and is validated across the full -40°C to +125°C operating range.
Which package type does the MAX6467US29D3-T use?
The MAX6467US29D3-T uses the 4-pin SOT143-4 package (package code U3+1), measuring 3.0mm × 1.7mm with 1.3mm height. This compact surface-mount outline is distinct from the SC70-4 option (XS prefix) and is documented in Maxim's Package Information section.
MAX6467US29D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-253-4, TO-253AA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.925V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 150ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-4
MAX6467US29D3-T FAQ
1.How can I place an order for MAX6467US29D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6467US29D3-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 MAX6467US29D3-T reliable?
The price and inventory of MAX6467US29D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6467US29D3-T is usually 5 days.
3.What payment methods are accepted for MAX6467US29D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6467US29D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6467US29D3-T?
MAX6467US29D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6467US29D3-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 MAX6467US29D3-T?
For technical support, including MAX6467US29D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6467US29D3-T requirements.
6.How does Aetrix verify that MAX6467US29D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6467US29D3-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 MAX6467US29D3-T meets industry standards.
7.What is the process for return or replacement of MAX6467US29D3-T?
All MAX6467US29D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6467US29D3-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 MAX6467US29D3-T part is unused and in its original packaging.
Return procedure for MAX6467US29D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6467US29D3-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…
