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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Supervisors

Analog Devices Inc./Maxim Integrated DS1811-10+

Name: DS1811-10+
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1811-10+
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DS1811-10+

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Supervisors

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: DS1811-10+.pdf

Description:: IC SUPERVISOR 1 CHANNEL TO92-3

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DS1811-10+ from Maxim Integrated (now Analog Devices) is a 5V precision voltage-monitoring supervisor IC with open-drain active-low reset output, 4.35 V typical V_CC trip point, 150 ms reset timeout, and -40°C to +85°C operating range. It automatically asserts reset during power failure and holds reset for ≥100 ms after V_CC recovery, enabling reliable microprocessor startup in embedded power management systems.

For engineers reviewing the DS1811-10+ datasheet, DS1811-10+ pinout, DS1811-10+ application, or DS1811-10+ equivalent, key selection criteria include trip voltage tolerance (±10%), internal 5.5 kΩ pull-up resistor, open-drain RST output drive capability, guaranteed reset timing across temperature, and TO-92/SOT-23 package compatibility with legacy board layouts.

Technical Context

The DS1811-10+ integrates a precision temperature-compensated voltage reference and comparator to detect V_CC deviations against its factory-trimmed 4.25–4.49 V trip window. Its internal power-fail detection circuit triggers immediate RST assertion on undervoltage, independent of external components.

Upon V_CC return, an on-chip timer enforces a fixed 100–300 ms reset hold time (150 ms typical), ensuring stable power and processor initialization before release. The open-drain output supports wired-OR configurations and interfaces directly with TTL/CMOS inputs without external pull-ups in many cases.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Trip Point	4.25 V (min) to 4.49 V (max); ensures reset activation before 5V rail drops below microprocessor minimum supply requirement
Reset Timeout	100–300 ms (typ 150 ms); guarantees sufficient stabilization time for CPU clock and memory after power recovery
Output Type	Open-drain RST with internal 3.5–7.5 kΩ pull-up; eliminates need for external resistor in standard 5V logic interface
Supply Range	1.2 V to 5.5 V; supports operation down to brown-out threshold while maintaining valid trip detection
Operating Temp	-40°C to +85°C; qualified for industrial-grade embedded control and automotive body electronics
I_OL (RST)	10 mA @ 0.4 V; drives standard CMOS/TTL reset inputs without buffer stage
I_CC	30–40 µA; ultra-low quiescent current preserves battery life in always-on monitoring applications

Pinout & Package

DS1811-10+ is available in both TO-92 and SOT-23 packages - identical pin mapping, fully interchangeable at board level. Both packages support through-hole and surface-mount assembly.

Pin/Terminal	Circuit Role	Design Meaning
RST (Pin 1)	Active-low open-drain reset output	Asserts low during V_CC fault or power-up; requires external pull-up only if interfacing with >5.5V logic or high-capacitance buses
V_CC (Pin 2)	Power supply input	Monitored rail input; powers internal reference and comparator; operates from 1.2 V to 5.5 V
GND (Pin 3)	Ground reference	Return path for internal circuitry and reset output sink current; must be connected to system ground plane

Key Features

Feature	Design Value
Factory-trimmed ±10% trip accuracy	Eliminates manual calibration and external resistor networks for precise 5V system supervision
Internal 5.5 kΩ pull-up resistor	Reduces BOM count by one component and PCB footprint in standard 5V microcontroller reset circuits
150 ms guaranteed reset timeout	Meets JEDEC JESD78 latch-up immunity timing requirements for most 8-/16-bit microcontrollers
Temperature-compensated reference	Maintains trip point stability over full -40°C to +85°C range without drift-induced false resets
Low 40 µA supply current	Enables use in battery-backed systems where continuous monitoring must not degrade standby life

Applications

Industrial PLC Controller	Smart Meter Power Management
Use Scenario: Uninterrupted operation during grid voltage sags or capacitor discharge events in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Primary power-fail detector and reset sequencer for ARM Cortex-M4-based main controller. Use Value: Prevents firmware corruption by holding reset until DC bus stabilizes post-sag, leveraging 150 ms timeout and 4.35 V trip point matched to 5V LDO output.	Use Scenario: Maintaining secure state during utility power interruption in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Supervisory watchdog that initiates nonvolatile memory write-protection and RTC backup switchover. Use Value: Internal 5.5 kΩ pull-up enables direct connection to meter SoC reset pin, reducing layout complexity and eliminating solder joint failure points.
POS Terminal Boot Integrity	Automotive Body Control Module
Use Scenario: Ensuring deterministic boot sequence after vehicle battery reconnection or alternator load dump transients. IC Role / Device Role / Timing Role: Voltage monitor triggering hard reset of payment processing MCU when 5V rail falls below 4.25 V. Use Value: ±10% trip tolerance accommodates production variance in 5V switching regulator output while guaranteeing reset before brownout lockup.	Use Scenario: Reliable microcontroller restart after cold-cranking voltage dip (<6 V) in 12V automotive subsystems. IC Role / Device Role / Timing Role: System-level reset generator synchronized to battery voltage recovery profile. Use Value: -40°C to +85°C rating and temperature-compensated reference ensure consistent trip behavior across engine bay thermal cycles.

Industrial PLC Controller

Smart Meter Power Management

Use Scenario: Uninterrupted operation during grid voltage sags or capacitor discharge events in DIN-rail mounted controllers.

IC Role / Device Role / Timing Role: Primary power-fail detector and reset sequencer for ARM Cortex-M4-based main controller.

Use Value: Prevents firmware corruption by holding reset until DC bus stabilizes post-sag, leveraging 150 ms timeout and 4.35 V trip point matched to 5V LDO output.

Use Scenario: Maintaining secure state during utility power interruption in ANSI C12.22-compliant electricity meters.

IC Role / Device Role / Timing Role: Supervisory watchdog that initiates nonvolatile memory write-protection and RTC backup switchover.

Use Value: Internal 5.5 kΩ pull-up enables direct connection to meter SoC reset pin, reducing layout complexity and eliminating solder joint failure points.

POS Terminal Boot Integrity

Automotive Body Control Module

Use Scenario: Ensuring deterministic boot sequence after vehicle battery reconnection or alternator load dump transients.

IC Role / Device Role / Timing Role: Voltage monitor triggering hard reset of payment processing MCU when 5V rail falls below 4.25 V.

Use Value: ±10% trip tolerance accommodates production variance in 5V switching regulator output while guaranteeing reset before brownout lockup.

Use Scenario: Reliable microcontroller restart after cold-cranking voltage dip (<6 V) in 12V automotive subsystems.

IC Role / Device Role / Timing Role: System-level reset generator synchronized to battery voltage recovery profile.

Use Value: -40°C to +85°C rating and temperature-compensated reference ensure consistent trip behavior across engine bay thermal cycles.

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-monitoring supervisor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS3808G15DBVR	Fixed 1.5V trip, adjustable delay; no internal pull-up; higher quiescent current (1.1 µA)	Designed for low-voltage ASICs, not 5V microcontrollers	Select only if supervising sub-2V rails or requiring programmable timeout
MAX6326UR29D3+	2.93V trip, 200 ms timeout, push-pull output, no internal pull-up	Requires external pull-up for open-drain compatibility; tighter trip tolerance (±1.5%)	Prefer when absolute trip accuracy > ±2% is required and board space allows extra resistor

Compared with TPS3808G15DBVR and MAX6326UR29D3+, the DS1811-10+ delivers optimized 5V system supervision with integrated pull-up, lower I_CC, and factory-trimmed ±10% trip-reducing design iterations and test validation effort for cost-sensitive industrial controls.

Availability

DS1811-10+ is available at Aetrix Electronics and suitable for industrial PLC controllers, smart meter power management, and POS terminal boot integrity applications requiring stable component supply and long-term lifecycle support.

Supply support for DS1811-10+ 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 infrastructure.

The DS1811-10+ belongs to Maxim's EconoReset™ supervisor family, engineered for cost-effective, single-supply voltage monitoring in resource-constrained embedded systems where reliability and minimal external components are critical.

FAQ

What is the exact V_CC trip voltage range for DS1811-10+?

The DS1811-10+ has a guaranteed V_CC trip point range of 4.25 V (minimum) to 4.49 V (maximum), with 4.35 V typical. This ±10% tolerance is factory-trimmed and temperature-compensated, ensuring consistent detection of 5V rail undervoltage across the full -40°C to +85°C operating range. DS1811-10+ does not require external resistors to set this threshold.

Does DS1811-10+ require an external pull-up resistor on the RST pin?

No, DS1811-10+ includes an internal 3.5–7.5 kΩ pull-up resistor on the open-drain RST output, eliminating the need for an external component in standard 5V logic interfaces. An external pull-up is only necessary when driving voltages above 5.5 V or interfacing with high-capacitance buses exceeding 10 pF load.

How long is the reset pulse duration of DS1811-10+ after V_CC recovery?

The DS1811-10+ holds the RST pin active low for 100–300 ms after V_CC returns to within tolerance, with 150 ms typical. This fixed timeout is generated by an internal timer and ensures microprocessor and power supply stabilization before release. DS1811-10+ does not support adjustable delay or external capacitor programming.

Can DS1811-10+ operate from a 3.3V supply?

Yes, DS1811-10+ operates from 1.2 V to 5.5 V, but its 4.25–4.49 V trip point is designed specifically for 5V systems. When powered from 3.3V, the device remains functional for monitoring higher rails via external resistor divider, but the internal trip threshold remains fixed. DS1811-10+ is not intended as a 3.3V rail supervisor.

What package options are available for DS1811-10+?

DS1811-10+ is offered in both TO-92 (through-hole) and SOT-23 (surface-mount) packages, with identical pinout (RST-V_CC-GND) and electrical specifications. Both packages share the same -40°C to +85°C temperature rating and are interchangeable in design, supporting legacy board upgrades and new compact layouts.

DS1811-10+ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: EconoReset

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

Packaging:: Bulk

Product Status:: Active

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 4.35V

Output:: Open Drain or Open Collector

Reset:: Active Low

Reset Timeout:: 100ms Minimum

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-92-3

DS1811-10+ FAQ

1.How can I place an order for DS1811-10+ through Aetrix?

Please submit a Request for Quotation (RFQ) for DS1811-10+ 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 DS1811-10+ reliable?

The price and inventory of DS1811-10+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1811-10+ is usually 5 days.

3.What payment methods are accepted for DS1811-10+?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1811-10+ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DS1811-10+?

DS1811-10+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DS1811-10+ 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 DS1811-10+?

For technical support, including DS1811-10+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1811-10+ requirements.

6.How does Aetrix verify that DS1811-10+ is sourced from the original manufacturer or authorized distributors?

All DS1811-10+ 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 DS1811-10+ meets industry standards.

7.What is the process for return or replacement of DS1811-10+?

All DS1811-10+ units undergo pre-shipment inspection (PSI). If there is an issue with DS1811-10+, 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 DS1811-10+ part is unused and in its original packaging.

Return procedure for DS1811-10+:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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