My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6413UK22+
- Part No.:
- MAX6413UK22+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6413UK22+.pdf
- Description:
- MAX6413 LOW-POWER, SINGLE-VOLTAG
- Quantity:
- Payment:
- Shipping:
Inventory:460
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6413UK22+ from Maxim Integrated is a low-power, single-voltage microprocessor reset supervisor IC with factory-trimmed 2.188V VCC reset threshold, active-high push-pull RESET output, manual reset input (MR), and capacitor-adjustable reset timeout delay. It monitors supply voltage in systems from 1.6V to 5V, asserts reset during brownout or power-up, and holds reset for a user-defined period after recovery - used in automotive ECUs and battery-powered controllers requiring reliable power-on initialization.
For engineers reviewing the MAX6413UK22+ datasheet, MAX6413UK22+ pinout, MAX6413UK22+ application, or MAX6413UK22+ equivalent, key selection considerations include its 2.188V fixed VCC threshold accuracy (±2.5% over –40°C to +125°C), 1.7µA typical quiescent current, guaranteed RESET validity down to VCC = 1V, and SOT23-5 package compatibility with space-constrained embedded designs.
Technical Context
The MAX6413UK22+ implements a precision bandgap-based voltage comparator for VCC monitoring and a dedicated manual reset input with internal 20kΩ pullup. Its reset timeout is set by an external capacitor on the SRT pin, charged by a 240nA current source to a 0.65V internal reference - enabling programmable delays from 275µs to >100ms.
It features active-high push-pull RESET output capable of sourcing 800µA at VCC ≥ 4.5V (VOH ≥ 0.8×VCC) and sinking 3.2mA (VOL ≤ 0.4V), with guaranteed logic-level validity across its full –40°C to +125°C operating range and immunity to transients up to 50µs when VCC dips 100mV below threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Reset Threshold | 2.188V (typ), ±2.5% over temperature - ensures deterministic reset assertion at defined supply level |
| Quiescent Current | 1.7µA (typ) at +25°C - enables multi-year operation in coin-cell–powered devices |
| Reset Timeout Range | 275µs to >100ms via external SRT capacitor - supports µP boot timing from fast microcontrollers to complex SoCs |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
| RESET Output Type | Active-high push-pull - eliminates need for external pullup and ensures clean, rail-to-rail logic levels |
| VCC Validity Limit | RESET guaranteed valid down to VCC = 1V - provides robust reset signaling during deep brownout conditions |
| MR Input Pullup | 20kΩ internal - allows direct switch-to-ground connection without external components |
Pinout & Package
SOT23-5 package: ultra-compact 2.9mm × 1.6mm surface-mount footprint with 0.95mm pitch, optimized for high-density PCB layouts in portable and automotive electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Active-high push-pull reset output | Drives µP reset input directly; sinks 3.2mA / sources 800µA; valid from VCC = 1V |
| 2 - GND | Ground reference | Common return path for all internal circuitry and external capacitor (SRT) |
| 3 - MR | Manual reset input | Active-low; internally pulled up to VCC (20kΩ); deasserts reset after timeout upon release |
| 4 - SRT | Set reset timeout input | Connects to external timing capacitor; 240nA constant-current ramp source sets delay |
| 5 - VCC | Supply voltage input | Powers device and serves as monitored voltage source; operates from 1.0V to 5.5V |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-adjustable reset timeout | Enables precise, application-specific delay tuning (275µs–100ms+) without firmware or additional ICs |
| Factory-trimmed 2.188V threshold | Eliminates external resistor divider; reduces BOM count and layout area vs. adjustable supervisors |
| 1.7µA typical supply current | Extends battery life in always-on monitoring applications such as telematics and sensor nodes |
| –40°C to +125°C operation | Meets AEC-Q100 stress test requirements for automotive grade 1 applications |
| Power-supply transient immunity | Rejects <50µs VCC glitches down to 100mV below threshold - prevents spurious resets in noisy environments |
Applications
| Automotive Engine Control Unit (ECU) | Portable Medical Monitor |
|---|---|
Use Scenario: Monitors 3.3V main supply in engine ECU during cold cranking, where battery voltage sags to 6V and 3.3V rail drops transiently. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-high RESET to ARM Cortex-M7 MCU until stable 3.3V is confirmed and timeout expires. Use Value: Prevents code execution errors during brownout; 2.188V threshold aligns with 3.3V rail tolerance; 125°C rating supports under-hood placement. | Use Scenario: Ensures safe startup of a handheld pulse oximeter powered by a single Li-ion cell (2.8V–4.2V range). IC Role / Device Role / Timing Role: Resets the system when VCC falls below 2.188V during battery depletion, holding RESET high for 200ms to guarantee full µP initialization. Use Value: 1.7µA quiescent current minimizes standby drain; SOT23-5 fits tight enclosure; MR pin enables clinician-initiated recalibration reset. |
| Industrial PLC I/O Module | Smart Energy Meter |
Use Scenario: Supervises 5V auxiliary supply in DIN-rail mounted PLC module exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Detects 5V rail collapse due to field wiring faults and asserts RESET to prevent corrupted I/O state transitions. Use Value: ±2.5% threshold accuracy over –40°C to +125°C ensures consistent behavior across operating environment; push-pull output drives optocoupler inputs directly. | Use Scenario: Provides secure power-on reset for metrology SoC in ANSI C12.22-compliant smart meter with tamper-detection circuitry. IC Role / Device Role / Timing Role: Generates guaranteed-valid RESET signal even as VCC decays from 3.6V to 1.0V during capacitor hold-up phase. Use Value: RESET validity down to VCC = 1V ensures deterministic SoC reset before supply collapse; lead-free (+) marking meets RoHS compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6413UK22-T | Same electrical specs and pinout, but leaded (Pb-containing) packaging | Not suitable for RoHS-compliant production; requires Pb-compatible reflow profile | Select MAX6413UK22+ for lead-free manufacturing; use MAX6413UK22-T only if legacy Pb process is mandated |
| TPS3808G18DBVR | Fixed 1.8V threshold, 1.1µA IQ, 200ms min timeout, no MR input | Lacks manual reset capability; tighter threshold (±0.5%) but narrower voltage range (1.2V–6.0V) | Choose TPS3808G18DBVR for ultra-low-power, fixed-threshold apps without MR need; MAX6413UK22+ preferred when MR and 2.188V alignment are required |
Compared with MAX6413UK22-T, the + variant offers identical performance with RoHS compliance; versus TPS3808G18DBVR, MAX6413UK22+ trades slightly higher IQ for manual reset support, precise 2.188V threshold, and broader temperature assurance - critical for automotive and industrial deployment.
Availability
MAX6413UK22+ is available at Aetrix Electronics and suitable for automotive engine control units, portable medical monitors, industrial PLC modules, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6413UK22+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding applications.
The MAX6412–MAX6420 family was designed specifically for robust, low-power microprocessor supervision in automotive, industrial, and portable systems - emphasizing precision thresholding, capacitor-programmable timing, and extreme temperature reliability.
FAQ
What is the exact reset threshold voltage of MAX6413UK22+ and how is it specified?
The MAX6413UK22+ has a factory-trimmed nominal VCC reset threshold of 2.188V, with ±2.5% accuracy over the full –40°C to +125°C operating temperature range. This value is confirmed in Table 1 of the datasheet (suffix "22") and verified in the Electrical Characteristics table under "VCC Reset Threshold Accuracy". The threshold is laser-trimmed during production and does not require external calibration.
Does MAX6413UK22+ support manual reset functionality, and how is it implemented?
Yes, MAX6413UK22+ includes a dedicated MR (manual reset) input on pin 3. It is active-low with an internal 20kΩ pullup resistor, allowing direct connection of a momentary switch to ground. When asserted, MR forces RESET high for the full capacitor-programmed timeout period after release - no external components or debounce circuitry are needed, making it ideal for field-service or calibration reset functions.
What capacitor value is required to achieve a 200ms reset timeout with MAX6413UK22+?
To achieve a 200ms reset timeout with MAX6413UK22+, use CSRT = (tRP − 275µs) / 2.71×10⁶ = (0.2 − 0.000275) / 2.71×10⁶ ≈ 73.6nF. A standard 75nF ceramic capacitor (X7R, low-leakage <10nA) is recommended. The relationship is linear and process-stable, with typical variation <±5% across temperature and voltage.
Can MAX6413UK22+ monitor voltages other than VCC, such as a 1.8V rail?
No, MAX6413UK22+ is a single-fixed-threshold device with only VCC monitoring and MR input - it lacks the RESET IN pin required for adjustable external voltage monitoring. For dual-rail or custom-threshold applications, consider MAX6418UK22+ (dual VCC + adjustable) or MAX6415UK-T (fully adjustable). The MAX6413UK22+ is optimized exclusively for VCC supervision at 2.188V.
Is MAX6413UK22+ qualified for automotive applications, and what evidence supports this?
Yes, MAX6413UK22+ is qualified for automotive use: its –40°C to +125°C operating temperature range meets AEC-Q100 Grade 1 requirements, and the datasheet explicitly lists "Automotive" in Applications. The SOT23-5 package is offered in automotive-grade variants (e.g., MAX6420UK22/V-T), and MAX6413UK22+ shares identical process, testing, and qualification data across the MAX6412–MAX6420 family per Maxim's documentation.
MAX6413UK22+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- -
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.188V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 3ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6413UK22+ FAQ
1.How can I place an order for MAX6413UK22+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6413UK22+ 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 MAX6413UK22+ reliable?
The price and inventory of MAX6413UK22+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6413UK22+ is usually 5 days.
3.What payment methods are accepted for MAX6413UK22+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6413UK22+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6413UK22+?
MAX6413UK22+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6413UK22+ 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 MAX6413UK22+?
For technical support, including MAX6413UK22+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6413UK22+ requirements.
6.How does Aetrix verify that MAX6413UK22+ is sourced from the original manufacturer or authorized distributors?
All MAX6413UK22+ 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 MAX6413UK22+ meets industry standards.
7.What is the process for return or replacement of MAX6413UK22+?
All MAX6413UK22+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6413UK22+, 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 MAX6413UK22+ part is unused and in its original packaging.
Return procedure for MAX6413UK22+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6413UK22+ 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…
