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Analog Devices Inc./Maxim Integrated DS1707EUA+TR
- Part No.:
- DS1707EUA+TR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS1707EUA+TR.pdf
- Description:
- IC SUPERVISOR DS1707 5V MICROMON
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
DS1707EUA+TR from Maxim Integrated is a 5V ±5% supply voltage supervisor IC that monitors VCC, senses external voltage via high-impedance IN pin, and debounces pushbutton reset input - delivering active-low and active-high reset outputs (RST and RST) with 130ms minimum pulse width for microprocessor power-up/power-down sequencing in industrial embedded systems.
For engineers reviewing the DS1707EUA+TR datasheet, DS1707EUA+TR pinout, DS1707EUA+TR application, or DS1707EUA+TR equivalent, key selection criteria include VCC trip point accuracy (4.50–4.75V), dual-reset output polarity, NMI early-warning interrupt generation, pushbutton debounce timing, and µSOP-8 RoHS-compliant packaging for space-constrained PCBs.
Technical Context
The DS1707EUA+TR implements a precision bandgap-referenced comparator architecture to monitor VCC against a fixed 4.65V typical trip point and independently sense upstream supply voltage at the IN pin using an internal 1.25V reference. It generates both RST (active-low) and RST (active-high) outputs synchronized to VCC decay or recovery.
Its NMI output provides early power-fail warning with 200µs minimum pulse width and 100µV hysteresis, while PBRST input accepts active-low pushbutton signals and guarantees ≥130ms reset assertion after release - all operating across -40°C to +85°C with <60µA quiescent current at VCC < 5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.50–4.75V (ensures reliable reset assertion when 5V rail drops below tolerance) |
| Reset Pulse Width | 130–285ms (guarantees sufficient processor stabilization time during power-up/down) |
| NMI Pulse Width | ≥200µs (provides deterministic early warning before VCC collapse) |
| IN Pin Reference | 1.20–1.30V (enables user-configurable voltage sensing via external resistor divider) |
| Quiescent Current | 60µA max at VCC < 5.5V (minimizes system standby power draw) |
| Operating Temp | -40°C to +85°C (supports industrial-grade reliability without derating) |
| Package | 8-pin µSOP (118-mil width; 2.0mm × 2.5mm footprint for high-density layouts) |
Pinout & Package
DS1707EUA+TR is housed in an 8-pin µSOP (micro Small Outline Package) with 0.5mm pitch, 2.0mm × 2.5mm body size, and exposed pad for thermal performance. Pin 1 marked with dot; pin numbering follows standard SOIC convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-High Reset Output | Drives logic-high reset signal to microcontroller reset input; open-drain compatible |
| RST | Active-Low Reset Output | Drives logic-low reset signal; complements RST for mixed-interface systems |
| PBRST | Pushbutton Reset Input | Accepts active-low external button; internally debounced with 130ms guaranteed output hold |
| VCC | Power Supply Input | Primary 5V supply connection; powers internal comparators and reference circuitry |
| GND | Ground Reference | System ground return path for all analog and digital functions |
| IN | Voltage Sense Input | High-impedance input referenced to 1.25V internal bandgap; enables custom voltage monitoring |
| NC | No Connect | Unbonded pin; must remain unconnected per datasheet mechanical drawing 21-0036J |
| NMI | Non-Maskable Interrupt Output | Open-drain output pulsed low for ≥200µs upon IN voltage drop below trip point |
Key Features
| Feature | Design Value |
|---|---|
| Dual-polarity reset outputs | Simultaneous RST (active-high) and RST (active-low) eliminate level-shifting requirements in mixed-voltage systems |
| Programmable voltage sensing | IN pin with 1.25V reference allows monitoring of any DC voltage >1.25V using external resistor divider |
| Early-warning NMI interrupt | Generates deterministic 200µs NMI pulse before VCC collapse, enabling graceful shutdown or data save |
| Integrated pushbutton debounce | Eliminates need for external RC filter or firmware debouncing logic; guarantees ≥130ms reset pulse |
| Industrial temperature range | Validated operation from -40°C to +85°C ensures reliability in harsh environments without thermal margin loss |
Applications
| Industrial PLC Controller | Medical Diagnostic Equipment |
|---|---|
Use Scenario: Power sequencing during mains brownout or battery switchover in programmable logic controllers. IC Role / Device Role / Timing Role: Voltage supervisor generating synchronized RST/RST signals and early NMI interrupt to trigger watchdog timeout and nonvolatile memory write. Use Value: Prevents corrupted firmware execution by holding CPU in reset until 5V rail stabilizes for ≥130ms post-recovery. | Use Scenario: Ensuring safe shutdown during unexpected AC power loss in imaging subsystems. IC Role / Device Role / Timing Role: Monitors main 5V supply and auxiliary 3.3V rail via IN pin; asserts NMI to initiate image buffer flush before VCC collapse. Use Value: Enables 200µs advance warning to complete critical data writes before power failure interrupts processing. |
| Automotive Infotainment Head Unit | Network Edge Router |
Use Scenario: Cold-cranking voltage dip detection during engine start in 12V-to-5V converted systems. IC Role / Device Role / Timing Role: Supervises post-regulation 5V domain; uses IN pin to sense upstream 12V rail via resistor divider for predictive reset. Use Value: Avoids false resets during transient dips by leveraging hysteresis and 130ms reset hold time. | Use Scenario: Maintaining stable boot sequence during PoE power negotiation or surge events. IC Role / Device Role / Timing Role: Provides dual-reset signaling to ARM-based SoC and FPGA configuration logic; PBRST supports manual recovery. Use Value: Guarantees simultaneous reset assertion across heterogeneous silicon with no external timing components required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX707ESA+ | Pin-compatible 5V ±5% supervisor; identical RST/RST/NMI/PBRST functionality but higher ICC (120µA vs 60µA) | Lacks IN pin voltage sensing capability - only monitors VCC directly | Select MAX707ESA+ only if IN-sense functionality is unnecessary and legacy design reuse is prioritized |
| TPS3808G33DBVR | 3.3V fixed threshold; no NMI output; single active-low reset; 350ms min reset timeout | Designed for low-power 3.3V systems; no pushbutton debounce or dual-reset support | Choose TPS3808G33DBVR for cost-sensitive 3.3V-only applications where early warning and dual outputs are not required |
Compared with MAX707ESA+, DS1707EUA+TR adds IN-pin voltage sensing and cuts quiescent current nearly in half; versus TPS3808G33DBVR, it delivers full 5V supervision with NMI interrupt, dual-reset polarity, and pushbutton integration - making it uniquely suited for robust industrial microprocessor reset management.
Availability
DS1707EUA+TR is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive infotainment, and network infrastructure requiring stable component supply with RoHS-compliant packaging and extended temperature support.
Supply support for DS1707EUA+TR 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, mixed-signal, and power management ICs for industrial, medical, automotive, and communications markets.
The DS1707EUA+TR belongs to the MicroMonitor™ family of voltage supervisors engineered specifically for fail-safe microprocessor reset control in systems demanding high reliability, early power-fail warning, and minimal external components.
FAQ
What is the VCC trip point specification for DS1707EUA+TR?
The DS1707EUA+TR has a guaranteed VCC trip point range of 4.50V to 4.75V, with a typical value of 4.65V. This ±5% tolerance ensures reliable reset assertion when the 5V supply falls outside acceptable limits. The DS1707EUA+TR uses an internal temperature-compensated bandgap reference to maintain this accuracy across the full -40°C to +85°C operating range without external calibration.
Does DS1707EUA+TR support monitoring of voltages other than VCC?
Yes, DS1707EUA+TR supports external voltage monitoring via its IN pin, which references an internal 1.25V bandgap. By connecting a resistor divider between the target voltage source and GND, users can scale any DC voltage above 1.25V to match the IN trip point. The DS1707EUA+TR datasheet provides the exact formula and example calculations for selecting R1 and R2 values to achieve precise sensing thresholds.
How does the NMI output function in DS1707EUA+TR?
The NMI output of DS1707EUA+TR pulses low for a minimum of 200µs when the IN pin voltage drops below its 1.25V trip point. This early-warning signal features 100µV hysteresis and requires the input to remain below threshold for ~5µs before triggering, rejecting noise spikes. The DS1707EUA+TR NMI can be connected to PBRST to automatically generate a full reset, enabling autonomous system recovery without host intervention.
What is the reset pulse width behavior of DS1707EUA+TR during power-up?
During power-up, DS1707EUA+TR holds both RST (active-low) and RST (active-high) outputs in their active states for a minimum of 130ms after VCC rises above the trip point. This ensures the microprocessor and power supply have sufficient time to stabilize before releasing reset. The DS1707EUA+TR guarantees this timing across temperature and supply variations, eliminating the need for external RC timing networks.
Is DS1707EUA+TR pin-compatible with other MicroMonitor devices?
Yes, DS1707EUA+TR is pin-compatible with the MAX707/MAX708 series in 8-pin DIP, SOIC, and µSOP packages. Its pinout matches the industry-standard layout: Pins 1–4 are RST, RST, PBRST, VCC; Pins 5–8 are NC, NMI, IN, GND. This compatibility allows direct replacement in existing designs using the same µSOP-8 footprint, provided the DS1707EUA+TR's 5V ±5% trip point meets the application's voltage tolerance requirements.
DS1707EUA+TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Power Supply Monitor
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.65V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High/Active Low
- Reset Timeout:
- 130ms Minimum
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-µMAX
DS1707EUA+TR FAQ
1.How can I place an order for DS1707EUA+TR through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1707EUA+TR 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 DS1707EUA+TR reliable?
The price and inventory of DS1707EUA+TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1707EUA+TR is usually 5 days.
3.What payment methods are accepted for DS1707EUA+TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1707EUA+TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1707EUA+TR?
DS1707EUA+TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1707EUA+TR 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 DS1707EUA+TR?
For technical support, including DS1707EUA+TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1707EUA+TR requirements.
6.How does Aetrix verify that DS1707EUA+TR is sourced from the original manufacturer or authorized distributors?
All DS1707EUA+TR 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 DS1707EUA+TR meets industry standards.
7.What is the process for return or replacement of DS1707EUA+TR?
All DS1707EUA+TR units undergo pre-shipment inspection (PSI). If there is an issue with DS1707EUA+TR, 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 DS1707EUA+TR part is unused and in its original packaging.
Return procedure for DS1707EUA+TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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