MAX6320PUK31BX/V+T Analog Devices Integrated Circuit (SOT23 (5-Pin)) In Stock
MAX6320PUK31BX/V+T is a 5-pin SOT-23 supervisory IC from Analog Devices that monitors a 3.1 V supply, asserts a reset on undervoltage, and includes a watchdog timer and manual reset input. Designed for reliable system supervision in space-constrained microprocessor and microcontroller designs.
- Manufacturer
- Analog Devices
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MAX6320PUK31BX/V+T Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.1800(MOQ 1000)
- 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 MAX6320PUK31BX/V+T?
- Monitors a fixed 3.1 V supply threshold for undervoltage detection
- Integrated watchdog timer to detect CPU lockup and force system reset
- Manual reset input for push-button or GPIO-driven supervisor override
- Ultra-compact 5-pin SOT-23 package for space-constrained PCBs
- Low quiescent current operation suitable for battery-powered systems
What is MAX6320PUK31BX/V+T used for?
MAX6320PUK31BX/V+T is used in microprocessor and microcontroller systems where reliable power-on reset and CPU health monitoring are required in minimal board area. Typical applications include industrial control modules, portable instruments, and battery-powered IoT nodes where the watchdog timer guards against firmware hangs and the manual reset input supports factory test sequences.
What are the specifications of MAX6320PUK31BX/V+T?
| Manufacturer Package Code | 5-SOT_23-N/A |
| Date Of Intro | 1998-01-03 |
| YTEOL | 9 |
| Additional Feature | BAT BUP SW:N;MNL RST:Y;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:N;UV DET:N;WD:Y;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.02mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1V |
| Supply Voltage-Nom (Vsup) | 3.6V |
| 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 | +3.08V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-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 MAX6320PUK31BX/V+T datasheet?
MAX6320PUK31BX/V+T Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for MAX6320PUK31BX/V+T?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what voltage threshold does MAX6320PUK31BX/V+T assert a reset signal?
MAX6320PUK31BX/V+T monitors a fixed 3.1 V threshold. When the supply drops below this level, the device asserts an active-low reset output, holding the processor in reset until the supply recovers and a timeout period of approximately 140 ms has elapsed.
How does the watchdog timer in MAX6320PUK31BX/V+T protect against CPU lockup in production systems?
The integrated watchdog timer requires the host CPU to send a pulse or toggle the WDI pin within the watchdog timeout window (typically 1.6 s). If the CPU fails to do so—for example, due to a firmware hang—the supervisor asserts a reset to restore normal operation, preventing silent system failures.
Can MAX6320PUK31BX/V+T be used with 3.3 V microcontrollers running from a single-cell lithium battery?
The 3.1 V reset threshold makes MAX6320PUK31BX/V+T suitable for 3.3 V microcontroller systems, as it asserts reset before the supply falls below the MCU's minimum operating voltage. Its low quiescent current draw (typically under 10 µA) also minimizes impact on battery life.
What is the footprint of the 5-pin SOT-23 package used for MAX6320PUK31BX/V+T?
The 5-pin SOT-23 package measures approximately 2.9 mm × 1.6 mm with 0.95 mm pin pitch, offering one of the smallest outlines available for a supervisory IC. This compact footprint simplifies placement near decoupling capacitors and processor reset pins on densely populated PCBs.
How does MAX6320PUK31BX/V+T compare to MAX6320 variants with different threshold voltages?
The MAX6320 family is available with fixed reset thresholds ranging from 2.5 V to 5 V in 100 mV steps, all in the same 5-pin SOT-23 package. The PUK31 suffix indicates a 3.1 V threshold; designers can select a variant closer to their supply rail—such as the 3.0 V or 3.3 V version—to tighten the undervoltage detection window.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $5.1800 | $5180.00 |
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