Analog Devices Inc./Maxim Integrated DS1810R-10/T&R
- Part No.:
- DS1810R-10/T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DS1810R-10/T&R.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
DS1810R-10/T&R from Maxim Integrated (now Analog Devices) is a precision voltage-monitoring reset IC with push-pull output, designed to automatically restart microprocessors after power failure. It asserts an active-low reset for 150 ms after VCC returns to tolerance, features a 4.25–4.49 V trip point, operates from 1.2 V to 5.5 V, and supports -40°C to +85°C industrial temperature range - used in embedded power-up sequencing and brownout protection.
For engineers reviewing the DS1810R-10/T&R datasheet, DS1810R-10/T&R pinout, DS1810R-10/T&R application, or DS1810R-10/T&R equivalent, key selection considerations include reset timeout accuracy, VCC trip threshold tolerance (±10%), push-pull drive capability (10 mA sink), low ICC (40 µA max), and SOT-23-3 package compatibility with space-constrained PCB layouts.
Technical Context
The DS1810R-10/T&R implements a precision temperature-compensated voltage reference and comparator to detect VCC deviations against its factory-trimmed 4.37 V nominal trip point (±10% tolerance). Its internal circuitry ensures reset assertion during power-down and holds RST active for 150 ms (min 100 ms, max 300 ms) after VCC recovery.
Unlike open-drain reset ICs, the DS1810R-10/T&R uses a push-pull output stage capable of both sourcing and sinking current - enabling valid logic levels down to VCC = 1.2 V, and supporting operation near 0 V when externally biased via a 100 kΩ pull-down resistor on RST.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.25 V (min) to 4.49 V (max); sets brownout detection threshold for 5 V systems |
| Reset Timeout | 100–300 ms; guarantees processor stabilization time after power recovery |
| Supply Range | 1.2 V to 5.5 V; enables use in low-voltage and standard 5 V applications |
| Output Drive | 10 mA sink / 350 µA source; supports direct interface to CMOS inputs without pull-up |
| Quiescent Current | 30–40 µA; minimizes standby power in battery-backed or energy-sensitive designs |
| Operating Temp | -40°C to +85°C; qualified for industrial-grade embedded control environments |
| Output Type | Push-pull; eliminates need for external pull-up resistor and reduces BOM count |
Pinout & Package
SOT-23-3 surface-mount package with 1.3 mm × 2.9 mm footprint and gull-wing leads; RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RST) | Active-low reset output | Push-pull driver; asserts logic low during fault or power-up, releases high when stable |
| 2 (VCC) | Power supply input | Monitored rail; device operates and asserts reset based on this voltage level |
| 3 (GND) | Ground reference | Return path for supply and output; must be low-impedance for accurate trip-point stability |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage monitoring | Factory-trimmed ±10% trip tolerance (4.37 V nominal) with temperature compensation |
| Guaranteed reset timeout | 150 ms typical hold time ensures reliable microprocessor initialization post-power-up |
| Push-pull output architecture | Eliminates external pull-up resistor, reduces component count and layout area |
| Low-voltage operation | Valid reset signaling down to VCC = 1.2 V; supports ultra-low-power system states |
| Zero-volt RST validity option | External 100 kΩ RST-to-GND resistor enables reset assertion even as VCC collapses to 0 V |
Applications
| Industrial PLC Control | Smart Metering |
|---|---|
Use Scenario: Power interruption during firmware update or data logging in utility meters. IC Role / Device Role / Timing Role: DS1810R-10/T&R monitors main 5 V rail and forces controlled MCU reset before corrupted writes occur. Use Value: 150 ms guaranteed reset pulse prevents flash memory corruption and ensures safe state recovery. | Use Scenario: Voltage sag during grid transients in residential electricity meters. IC Role / Device Role / Timing Role: DS1810R-10/T&R detects brownout on 5 V supply and holds MCU in reset until stable. Use Value: ±10% trip tolerance matches metering system's 5 V regulator spec, avoiding false resets. |
| Embedded HMI Panels | IoT Edge Sensor Nodes |
Use Scenario: Unplanned AC adapter disconnect in touch-panel controllers. IC Role / Device Role / Timing Role: DS1810R-10/T&R provides clean power-on reset and brownout response for ARM Cortex-M4 host. Use Value: Push-pull output directly drives reset pin without pull-up, saving board space and BOM cost. | Use Scenario: Battery voltage decay below regulation threshold in LPWAN sensor modules. IC Role / Device Role / Timing Role: DS1810R-10/T&R asserts reset when Li-ion drops below 4.25 V, halting transmission before data loss. Use Value: Valid RST output down to VCC = 1.2 V allows graceful shutdown sequencing prior to full power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-monitoring reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326–43D | 4.3 V fixed trip, 200 ms reset timeout, open-drain output, 1.8–5.5 V supply | Requires external pull-up; less suitable for space-constrained layouts | Preferred where longer reset hold time and wider supply range are needed |
| TPS3808G15DBVR | 1.5 V trip point, adjustable delay, push-pull output, 0.8–6 V supply | Not a drop-in replacement - different trip voltage and no ±10% tolerance grade | Use only if system requires lower trip threshold and programmable timeout |
Compared with MAX6326–43D and TPS3808G15DBVR, the DS1810R-10/T&R offers tighter trip tolerance matching for 5 V systems, integrated push-pull drive, and minimal external components - making it optimal for cost-sensitive, space-limited industrial reset supervision.
Availability
DS1810R-10/T&R is available at Aetrix Electronics and suitable for industrial control, smart metering, and embedded HMI applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DS1810R-10/T&R 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
Analog Devices (via acquisition of Maxim Integrated) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS1810R-10/T&R belongs to Maxim's EconoReset™ family - engineered for low-cost, high-reliability power-supply monitoring in resource-constrained embedded systems.
FAQ
What is the exact VCC trip point range for DS1810R-10/T&R?
The DS1810R-10/T&R has a guaranteed VCC trip point range of 4.25 V (minimum) to 4.49 V (maximum), corresponding to a nominal 4.37 V with ±10% tolerance. This specification is tested and characterized over the full -40°C to +85°C operating temperature range and applies to all units marked "R-10" per Maxim's part marking convention.
Does DS1810R-10/T&R require an external pull-up resistor on the RST pin?
No, DS1810R-10/T&R does not require an external pull-up resistor because it features a push-pull output stage. The RST pin actively drives high or low depending on power status, eliminating the need for external biasing components and reducing PCB footprint and BOM cost compared to open-drain reset ICs.
Can DS1810R-10/T&R operate below 1.2 V supply voltage?
DS1810R-10/T&R maintains functional reset output down to VCC = 1.2 V. Below that, the RST output remains valid only if a 100 kΩ resistor is connected from RST to GND - enabling asserted low-state signaling even as VCC approaches 0 V during power-down, as confirmed in Figure 3 of the official DS1810 datasheet.
What is the reset timeout duration of DS1810R-10/T&R after VCC recovery?
The DS1810R-10/T&R holds the RST pin active low for 100 ms (minimum) to 300 ms (maximum) after VCC returns to within tolerance. The typical duration is 150 ms, providing sufficient time for power supply and microprocessor stabilization before release - a value guaranteed across process, voltage, and temperature variations.
Is DS1810R-10/T&R available in TO-92 packaging?
No, DS1810R-10/T&R is specified and shipped exclusively in SOT-23-3 tape-and-reel packaging (T&R). While the DS1810 family includes TO-92 variants (e.g., DS1810R-10), the "/T&R" suffix denotes the SOT-23-3 surface-mount version intended for automated assembly, with identical electrical specifications and pinout as the through-hole variant.
DS1810R-10/T&R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- EconoReset
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 4.37V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- 100ms Minimum
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DS1810R-10/T&R FAQ
1.How can I place an order for DS1810R-10/T&R through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1810R-10/T&R 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 DS1810R-10/T&R reliable?
The price and inventory of DS1810R-10/T&R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1810R-10/T&R is usually 5 days.
3.What payment methods are accepted for DS1810R-10/T&R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1810R-10/T&R transactions.
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4.How is shipping managed for DS1810R-10/T&R?
DS1810R-10/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1810R-10/T&R 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 DS1810R-10/T&R?
For technical support, including DS1810R-10/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1810R-10/T&R requirements.
6.How does Aetrix verify that DS1810R-10/T&R is sourced from the original manufacturer or authorized distributors?
All DS1810R-10/T&R 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 DS1810R-10/T&R meets industry standards.
7.What is the process for return or replacement of DS1810R-10/T&R?
All DS1810R-10/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1810R-10/T&R, 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 DS1810R-10/T&R part is unused and in its original packaging.
Return procedure for DS1810R-10/T&R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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