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Analog Devices Inc./Maxim Integrated MAX6713REXS+T
- Part No.:
- MAX6713REXS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
MAX6713REXS+T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,323
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Product details
Overview
MAX6713REXS+T from Maxim Integrated is a precision microprocessor supervisory circuit with open-drain active-low RESET output, designed to monitor +2.5V power supplies in embedded systems. It asserts reset when VCC falls below 2.59V (min), guarantees reset validity down to VCC = +1V, and delivers ≥140ms power-on-reset timeout. Used in portable battery-powered equipment for reliable brownout detection and manual reset initiation.
For engineers reviewing the MAX6713REXS+T datasheet, MAX6713REXS+T pinout, MAX6713REXS+T application, or MAX6713REXS+T equivalent, key selection criteria include its 2.59V reset threshold tolerance over temperature, 12µA supply current at +25°C, SC70-4 package footprint, and open-drain output compatibility with bidirectional µP reset pins and multi-supply level-shifting.
Technical Context
The MAX6713REXS+T implements a precision bandgap-based voltage comparator with 30ppm/°C tempco to detect VCC drops below its factory-trimmed 2.59V–2.66V threshold. Its internal 20kΩ MR pull-up resistor enables direct switch-to-ground connection without external components.
Reset assertion persists for ≥140ms after VCC recovery or MR deassertion, and the open-drain RESET output supports pull-up to any voltage ≤6.0V - enabling interface with higher-voltage logic or bidirectional µP reset I/O such as Motorola 68HC11. Output remains valid down to VCC = +1V, with leakage <1µA when deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.59V (min) to 2.66V (max) at +25°C; ensures reliable detection of +2.5V supply brownout before system instability |
| Supply Current | 12µA (typ) at VCC = +2.5V, TA = –40°C to +85°C; enables multi-year operation in coin-cell–powered devices |
| Reset Timeout | 140ms (min) to 460ms (max) over –40°C to +85°C; satisfies µP minimum reset pulse width requirements across industrial temperature range |
| Operating Voltage Range | 1.2V to 5.5V (–40°C to +105°C); supports valid reset assertion even during deep brownout or partial power loss |
| MR Input Threshold | VIL = 0.3×VCC, VIH = 0.7×VCC; compatible with TTL/CMOS logic and open-drain drivers without level translation |
| RESET Output Type | Open-drain with <1µA leakage when deasserted; allows flexible pull-up to separate voltage rail up to +6.0V |
| Package | 4-pin SC70 (X4-1 outline); 1.3mm × 1.1mm footprint with 0.65mm pitch - suitable for space-constrained portable PCBs |
Pinout & Package
MAX6713REXS+T is housed in a lead-free 4-pin SC70 package (outline X4-1, land pattern 90-0187), measuring 1.3mm × 1.1mm × 0.6mm with gull-wing leads. The compact footprint supports high-density layout in handheld and wearable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for internal comparator and MR input; must be connected directly to system ground plane |
| 2 RESET | Open-drain active-low reset output | Sinks current only when asserted; requires external pull-up resistor (value not critical, typically 10kΩ–100kΩ) to defined logic-high voltage |
| 3 MR | Manual reset input (active-low) | Internally pulled up to VCC via 20kΩ resistor; driven low by switch or logic to initiate system reset; immune to <100ns glitches |
| 4 VCC | Supply voltage input | Monitored +2.5V rail; powers internal circuitry and sets MR logic thresholds; absolute max rating = +6.0V |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.59V reset threshold | Factory-trimmed ±0.5% over –40°C to +125°C; eliminates need for external resistor divider calibration |
| 140ms minimum reset timeout | Guaranteed minimum pulse width meets Intel, ARM, and Microchip µP reset timing requirements without external RC network |
| Open-drain RESET with multi-rail flexibility | Enables level-shifted reset signaling - e.g., monitoring +2.5V VCC while pulling RESET to +3.3V or +5.0V logic domain |
| MR input with integrated 20kΩ pull-up | Removes external bias resistor; supports direct connection of momentary switch to GND - no debounce circuitry required |
| Valid reset output down to VCC = +1V | Ensures deterministic state during deep brownout; prevents µP from executing corrupted code due to marginal supply |
Applications
| Portable Medical Sensors | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Wearable ECG patch operating from single Li-ion cell with dynamic voltage sag during RF transmission. IC Role / Device Role / Timing Role: Supervisory circuit monitoring regulated +2.5V analog front-end supply; asserts RESET within 20µs of VCC crossing 2.59V threshold. Use Value: Prevents ADC data corruption and firmware lockup during transient brownout, extending field reliability beyond 50,000 power cycles. |
Use Scenario: DIN-rail mounted I/O module exposed to 24V DC supply ripple and cold-start conditions in factory automation. IC Role / Device Role / Timing Role: Primary reset source for ARM Cortex-M4 controller; provides 140ms guaranteed reset hold time after 24V input stabilizes. Use Value: Eliminates boot failures caused by slow-rising 3.3V LDO output, reducing field return rate by >92% vs. RC-based reset circuits. |
| Battery-Powered IoT Gateways | Test & Measurement Handhelds |
|
Use Scenario: Cellular-connected gateway powered by 3.7V LiPo with buck converter delivering +2.5V to RF SoC and sensor hub. IC Role / Device Role / Timing Role: Monitors +2.5V rail feeding BLE/Wi-Fi transceiver; open-drain RESET pulled to +3.3V to match host MCU logic levels. Use Value: Enables clean restart after deep sleep wake-up events, avoiding RF initialization errors that cause 15–30s connection delays. |
Use Scenario: Handheld multimeter with auto-ranging analog front-end and segmented LCD display powered from dual AA cells. IC Role / Device Role / Timing Role: Resets MSP430 microcontroller on battery insertion and during low-battery cutoff at 2.59V threshold. Use Value: Guarantees consistent startup behavior across 100–1000 charge cycles; removes need for user "power-cycle" troubleshooting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor supervisory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326UR26+T | Fixed 2.63V threshold, push-pull active-low RESET, same SC70-4 package, 1.2µA typical ICC | Lacks manual reset input; no MR pin - unsuitable where operator-initiated reset is required | Select when lowest quiescent current is critical and manual reset is handled externally |
| TPS3123E18DBVR | 2.625V threshold, open-drain active-low RESET, SOT-23-5 package, 1.8µA ICC, includes watchdog timer | 5-pin layout requires PCB redesign; watchdog function adds complexity if unused | Choose when system-level watchdog supervision is needed alongside power monitoring |
Compared with MAX6713REXS+T, MAX6326UR26+T offers lower supply current but omits MR functionality, while TPS3123E18DBVR adds watchdog capability at the cost of larger footprint and design overhead - making MAX6713REXS+T optimal for MR-requiring, space-constrained +2.5V systems.
Availability
MAX6713REXS+T is available at Aetrix Electronics and suitable for portable/battery-powered equipment, intelligent instruments, critical µP power monitoring, and industrial controllers requiring stable component supply with full RoHS compliance and traceable sourcing.
Supply support for MAX6713REXS+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, medical, and communications applications - emphasizing accuracy, low power, and small-footprint integration.
The MAX671x family targets space- and power-sensitive embedded systems needing highly accurate, no-component-required power supervision - specifically optimized for reliable reset generation in battery-operated and thermally rugged environments.
FAQ
What is the exact reset threshold voltage for MAX6713REXS+T?
The MAX6713REXS+T has a factory-trimmed reset threshold of 2.59V (minimum), 2.63V (typical), and 2.66V (maximum) at +25°C. This R-suffix variant is specified for +2.5V supply monitoring, with full temperature range coverage from –40°C to +125°C and a tempco of 30ppm/°C - ensuring stable trip point across operating conditions without external calibration.
Does MAX6713REXS+T require an external pull-up resistor on the RESET pin?
Yes, MAX6713REXS+T requires an external pull-up resistor on its open-drain RESET pin because it cannot drive high actively. A 10kΩ to 100kΩ resistor connected to any voltage rail ≤+6.0V (e.g., +3.3V or +5.0V) ensures proper logic-high level. This architecture enables level-shifting and bidirectional reset interfacing - a key differentiator from push-pull alternatives like MAX6711/MAX6712.
Can MAX6713REXS+T operate with VCC below 2.5V?
Yes, MAX6713REXS+T operates with VCC as low as +1.2V over the full industrial temperature range (–40°C to +105°C) and down to +1.0V at 0°C to +70°C. Its reset output remains valid and correctly asserted until VCC drops to +1V, after which RESET becomes high-impedance - a documented behavior enabling graceful shutdown sequencing in ultra-low-power designs.
What is the function of the MR pin on MAX6713REXS+T?
The MR (Manual Reset) pin on MAX6713REXS+T is an active-low input with an internal 20kΩ pull-up resistor. Driving MR low - via a momentary switch to GND or logic signal - forces immediate reset assertion for ≥140ms after release. No external components are needed, and the pin rejects glitches <100ns, making it ideal for field-service reset buttons and test-mode entry in production systems.
Is MAX6713REXS+T pin-compatible with other MAX671x variants?
Yes, MAX6713REXS+T shares identical SC70-4 pinout and footprint with all MAX6711/MAX6712/MAX6713 variants (e.g., MAX6713TEXS+T, MAX6711RUS+T). Pin 1 = GND, Pin 2 = RESET, Pin 3 = MR, Pin 4 = VCC. However, output type (open-drain vs. push-pull) and reset threshold differ by suffix - so electrical substitution requires verification of reset polarity and voltage match for the target application.
MAX6713REXS+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:
- Active
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-4
MAX6713REXS+T FAQ
1.How can I place an order for MAX6713REXS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6713REXS+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 MAX6713REXS+T reliable?
The price and inventory of MAX6713REXS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6713REXS+T is usually 5 days.
3.What payment methods are accepted for MAX6713REXS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6713REXS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6713REXS+T?
MAX6713REXS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6713REXS+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 MAX6713REXS+T?
For technical support, including MAX6713REXS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6713REXS+T requirements.
6.How does Aetrix verify that MAX6713REXS+T is sourced from the original manufacturer or authorized distributors?
All MAX6713REXS+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 MAX6713REXS+T meets industry standards.
7.What is the process for return or replacement of MAX6713REXS+T?
All MAX6713REXS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6713REXS+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 MAX6713REXS+T part is unused and in its original packaging.
Return procedure for MAX6713REXS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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