MAX6343SUT+ Analog Devices Integrated Circuit (SOT23 (6-Pin)) In Stock
The MAX6343SUT+ is a microprocessor reset supervisor with an integrated power-fail comparator from Analog Devices, housed in a 6-pin SOT-23 package. It monitors supply voltage for undervoltage conditions and asserts a reset signal with a fixed threshold, targeting reliable power sequencing in embedded systems, industrial controllers, and battery-backed designs.
- Manufacturer
- Analog Devices
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- MAX6343SUT+ Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX6343SUT+?
- Integrated power-fail comparator input for early low-voltage warning before reset assertion
- Fixed-threshold voltage supervisor with no external programming resistors required
- 6-pin SOT-23 package occupying minimal PCB area for space-constrained designs
- Single-channel reset output with specified reset timeout delay for stable MCU startup
- RoHS-compliant lead-free finish (JESD-609 code e3) for modern assembly processes
What is MAX6343SUT+ used for?
The MAX6343SUT+ is deployed in embedded processor boards, PLC control modules, and automotive body electronics where a reliable reset pulse and power-fail warning are required to prevent microcontroller lockup during brown-out events. Its compact SOT-23 footprint and integrated power-fail comparator reduce external component count in battery-backed SRAM systems and fail-safe relay controllers.
What are the specifications of MAX6343SUT+?
| Manufacturer Package Code | 6-SOT_23-N/A |
| Date Of Intro | 1999-10-23 |
| YTEOL | 9 |
| Additional Feature | BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:Y;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:N;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.06mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.2V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX6343SUT+ datasheet?
MAX6343SUT+ Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX6343SUT+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supervisor functions does MAX6343SUT+ combine in a single 6-pin SOT-23 package?
MAX6343SUT+ integrates a voltage supervisor with a fixed reset threshold and a power-fail comparator input in a single 6-pin SOT-23 IC. This combination lets designers monitor the main supply for undervoltage reset and simultaneously detect a secondary power-fail signal — replacing 2 separate supervisor ICs and saving several square millimeters of PCB space.
How does the power-fail comparator input of MAX6343SUT+ help protect SRAM data during an unexpected power loss?
The power-fail comparator input provides an early warning before the main supply drops below the reset threshold. In a battery-backed SRAM design, this early signal — typically triggered 10–100 ms before the supply falls below 1 V margin — gives the microprocessor enough time to flush write buffers and switch to the backup battery, preserving critical data across a power interruption.
Is MAX6343SUT+ suitable for automotive designs, and what temperature range does it cover?
MAX6343SUT+ is specified over the -40 °C to +85 °C extended industrial temperature range, covering typical automotive body electronics ambient conditions. However, designers targeting full AEC-Q100 Grade 1 qualification at -40 °C to +125 °C should verify the exact rated range with the Analog Devices datasheet, as the MAX6343 series includes variants with different temperature grades.
How does MAX6343SUT+ reduce BOM complexity compared to using a discrete comparator plus separate reset IC for undervoltage detection?
A discrete solution requires a comparator, voltage reference, 2–4 resistors, and a reset supervisor — typically 5 to 8 components. MAX6343SUT+ consolidates both the power-fail comparator and the reset supervisor into 1 SOT-23 package with 6 pins, cutting component count by at least 4 parts and reducing hand-placement errors during prototyping of time-sensitive embedded control boards.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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