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Analog Devices Inc./Maxim Integrated DS1706PEUA
- Part No.:
- DS1706PEUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1706PEUA.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,229
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Product details
Overview
DS1706PEUA from Maxim Integrated is a 3.3V ±20% precision voltage supervisor IC with active-high reset output (RST), watchdog timer, non-maskable interrupt (NMI), and pushbutton reset debouncing - designed for microprocessor power monitoring in embedded systems requiring early power-fail warning and guaranteed 130ms reset pulse width.
For engineers reviewing the DS1706PEUA datasheet, DS1706PEUA pinout, DS1706PEUA application, or DS1706PEUA equivalent, key selection criteria include its 2.55V–2.70V VCC trip point, 1-second watchdog timeout, 1.25V IN-sense reference, industrial temperature range (–40°C to +85°C), and µSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The DS1706PEUA implements three independent monitoring functions: (1) VCC supply supervision with 2.63V typical trip point and hysteresis; (2) high-impedance IN-pin voltage sensing referenced to 1.25V internal bandgap for upstream power rail monitoring; and (3) watchdog timer triggered by ST input strobes, timing out after 1.0–2.2s if unrefreshed.
Its RST output is active-high (confirmed for DS1706P variant), NMI provides 200µs minimum pulse on voltage decay at IN, and PBRST debounces external pushbuttons to guarantee ≥130ms reset assertion - all operating across 1.2V–5.5V supply range with <60µA quiescent current at VCC < 5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 2.55V–2.70V (typical 2.63V); sets precise 3.3V ±20% reset threshold for brownout detection |
| Reset Pulse Width | 130–285ms; ensures sufficient time for microprocessor stabilization after power recovery |
| Watchdog Timeout | 1.0–2.2s; provides fail-safe software execution monitoring with configurable ST refresh window |
| IN Sense Reference | 1.20–1.30V (typical 1.25V); enables user-defined upstream voltage monitoring via resistor divider |
| Operating Temp | –40°C to +85°C; supports industrial-grade reliability in harsh ambient environments |
| Supply Current | ≤60µA at VCC < 5.5V; minimizes system power overhead in battery-backed or low-power designs |
| Package | 8-pin µSOP (118-mil); surface-mount footprint optimized for compact PCB real estate |
Pinout & Package
DS1706PEUA is housed in an 8-pin µSOP (118-mil) package with gull-wing leads, 0.5mm pitch, and JEDEC MO-187AC compliant dimensions. Pin numbering follows standard SOIC/SOP orientation (pin 1 marked).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PBRST | Pushbutton Reset Input | Active-low debounced input; generates ≥130ms RST pulse on button release |
| VCC | Power Supply | Primary supply input (1.2V–5.5V); powers internal comparators, timer, and outputs |
| GND | Ground | Reference return for all analog and digital circuitry |
| IN | Voltage Sense Input | High-impedance (≤1µA leakage) input for external voltage divider; trips at 1.25V reference |
| NMI | Non-Maskable Interrupt Output | Active-low pulse (≥200µs) signaling early power decay at IN pin |
| ST | Strobe Input | Watchdog refresh signal; high-to-low transition resets 1s timeout counter |
| RST | Active-High Reset Output | Asserted high during VCC undervoltage or PBRST activation; holds ≥130ms |
| WDS | Watchdog Status Output | Active-low open-drain output pulsed ≥130ms on watchdog timeout |
Key Features
| Feature | Design Value |
|---|---|
| Triple-function supervision | Simultaneous VCC monitoring, external voltage sense (IN), and software watchdog - eliminates need for discrete supervisors |
| Guaranteed reset timing | 130ms minimum RST assertion on power-up, power-down, and pushbutton events - ensures deterministic processor initialization |
| Configurable reset polarity | RST output is active-high (DS1706P variant), enabling direct interface with processors requiring high-asserted reset |
| Industrial-grade reliability | –40°C to +85°C operation with 100µV hysteresis on NMI and noise immunity against <2µs transients |
| Low-power operation | 60µA max ICC at VCC < 5.5V - suitable for always-on monitoring in energy-sensitive applications |
Applications
| Industrial PLC Controller | Medical Diagnostic Device |
|---|---|
Use Scenario: Microcontroller-based programmable logic controller operating in factory-floor environments with fluctuating 3.3V rails. IC Role / Device Role / Timing Role: Primary voltage supervisor providing brownout detection, early NMI warning, and watchdog-triggered safe shutdown. Use Value: Prevents corrupted I/O states during voltage sags by asserting RST before VCC drops below 2.55V and initiating graceful firmware response via NMI. |
Use Scenario: Portable ultrasound imaging unit powered by Li-ion battery with regulated 3.3V domain. IC Role / Device Role / Timing Role: System-level power integrity monitor ensuring safe boot and runtime fault containment. Use Value: Guarantees 130ms reset hold time during battery voltage sag, while IN-sense monitors upstream DC-DC converter output for predictive failure handling. |
| Telecom Remote Terminal | Smart Energy Meter |
Use Scenario: Outdoor telecom node exposed to wide temperature swings and ESD-prone field wiring. IC Role / Device Role / Timing Role: Fault-tolerant reset generator with pushbutton override and watchdog supervision of communication stack. Use Value: PBRST debouncing prevents false resets from switch bounce; WDS output triggers firmware recovery without host intervention. |
Use Scenario: ANSI C12.20-compliant electricity meter with tamper-detection logic and secure boot requirements. IC Role / Device Role / Timing Role: Critical power supervisor enforcing reset timing compliance and enabling NMI-based secure state capture. Use Value: 1.25V IN reference allows precise monitoring of 5V auxiliary rail; NMI pulse initiates cryptographic state dump prior to full reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX706TEUA | 3.3V ±5% trip (VCCTP = 3.00–3.15V); active-low RST; no RST output | Higher accuracy but narrower tolerance; requires level-shifting for RST-high interfaces | Select when tighter VCC threshold control is needed and active-low reset is acceptable |
| TPS3808G18DBVR | 3.3V ±2% trip (1.8V fixed option); adjustable delay; no NMI or ST inputs | Lacks non-maskable interrupt and watchdog strobe - limited to basic supply monitoring | Choose for ultra-precise threshold and delay tuning where advanced supervision features are unnecessary |
Compared with DS1706PEUA, MAX706TEUA offers higher trip accuracy but omits active-high reset and NMI, while TPS3808G18DBVR provides superior threshold stability yet lacks the triple-monitoring architecture essential for robust microprocessor supervision.
Availability
DS1706PEUA is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and telecom infrastructure requiring stable component supply, long-term lifecycle support, and consistent µSOP-8 packaging.
Supply support for DS1706PEUA 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1706PEUA belongs to the MicroMonitor™ family - engineered specifically for microprocessor-centric systems needing coordinated power, software, and external-event supervision in a single compact device.
FAQ
What is the exact VCC trip point range for DS1706PEUA?
The DS1706PEUA has a specified VCC trip point range of 2.55V to 2.70V, with a typical value of 2.63V. This corresponds to 3.3V ±20% monitoring and is validated across the full –40°C to +85°C operating temperature range. The DS1706PEUA datasheet confirms this tolerance is guaranteed for the 'P' variant, distinguishing it from other DS1706 versions like 'T' (±5%) or 'S' (±10%).
Does DS1706PEUA provide both active-high and active-low reset outputs?
No, DS1706PEUA provides only an active-high reset output (RST). The datasheet explicitly states that RST is active-high for DS1706P and DS1706L variants, while *RST (active-low) is not present on DS1706PEUA. This distinguishes it from DS1706EUA (active-low RST) and confirms the DS1706PEUA's RST pin must be connected to microprocessors requiring high-asserted reset signals.
How does the watchdog timer in DS1706PEUA function, and what is its timeout window?
The DS1706PEUA watchdog timer starts counting after RST becomes inactive and times out if the ST input is not strobed low within 1.0–2.2 seconds. Upon timeout, WDS asserts low for ≥130ms. The ST input accepts any microprocessor signal (e.g., address, data, or control line) and is internally pulled up to VCC with 180kΩ impedance - confirmed in the DS1706PEUA electrical characteristics table.
Can DS1706PEUA monitor a voltage rail higher than its VCC supply?
Yes, DS1706PEUA can monitor higher-voltage rails using the IN pin with an external resistor divider. The IN input has a fixed 1.25V trip threshold (VTP = 1.20–1.30V), and the datasheet provides the formula VSENSE = (R2/(R1+R2)) × 1.25V to calculate divider values. Maximum allowable monitored voltage (VMAX) is derived as (VTP/VSENSE) × VCC, enabling safe monitoring of rails up to ~11.88V when VCC = 3.3V.
What package type and dimensions does DS1706PEUA use?
DS1706PEUA uses an 8-pin µSOP (micro Small Outline Package) with 118-mil body width and 0.5mm lead pitch, per JEDEC MO-187AC. This package is distinct from DIP (300-mil) and SOIC (150-mil) variants and is optimized for high-density PCB layouts. Pin 1 is marked with a dot or notch, and the pinout matches standard SOP orientation - verified in the mechanical drawings section of the DS1706 datasheet.
DS1706PEUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- MicroMonitor™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 2.63V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- 130ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
DS1706PEUA FAQ
1.How can I place an order for DS1706PEUA through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1706PEUA 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 DS1706PEUA reliable?
The price and inventory of DS1706PEUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1706PEUA is usually 5 days.
3.What payment methods are accepted for DS1706PEUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1706PEUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1706PEUA?
DS1706PEUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1706PEUA 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 DS1706PEUA?
For technical support, including DS1706PEUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1706PEUA requirements.
6.How does Aetrix verify that DS1706PEUA is sourced from the original manufacturer or authorized distributors?
All DS1706PEUA 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 DS1706PEUA meets industry standards.
7.What is the process for return or replacement of DS1706PEUA?
All DS1706PEUA units undergo pre-shipment inspection (PSI). If there is an issue with DS1706PEUA, 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 DS1706PEUA part is unused and in its original packaging.
Return procedure for DS1706PEUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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