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Analog Devices Inc./Maxim Integrated DS1813-10
- Part No.:
- DS1813-10
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- TO-226-3, TO-92-3 (TO-226AA)
- Datasheet:
-
DS1813-10.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,767
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Product details
Overview
DS1813-10 from Maxim Integrated is a precision voltage-monitoring reset IC with pushbutton reset capability, designed for microprocessor supervision in 5V systems. It features a 4.25V to 4.49V VCC trip point (±10% tolerance), 150ms reset timeout, open-drain RST output with internal 5.5kΩ pullup, and operates from -40°C to +85°C in SOT-23 or TO-92 packages.
For engineers reviewing the DS1813-10 datasheet, DS1813-10 pinout, DS1813-10 application, or DS1813-10 equivalent, key selection criteria include trip voltage accuracy, reset timeout stability, pushbutton debouncing behavior, open-drain drive strength, and compatibility with 5V microcontroller reset inputs requiring active-low assertion.
Technical Context
The DS1813-10 implements dual monitoring paths: one for VCC supply voltage detection using a precision temperature-compensated bandgap reference and comparator, and another for external pushbutton input on the RST pin. Trip threshold is fixed at 4.35V nominal with ±10% tolerance, validated across -40°C to +85°C.
Its open-drain RST output asserts low during power failure or button press, holding for 100–300ms (typ. 150ms) after recovery or release. Internal 5.5kΩ pullup enables direct connection to 5V logic without external components, while IOL ≥10mA supports standard microcontroller reset input loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Trip Point | 4.25V (min) to 4.49V (max); ensures reliable reset assertion before 5V rail drops below microprocessor VCC min spec. |
| Reset Timeout (tRST) | 100–300ms (typ. 150ms); guarantees sufficient stabilization time for 5V power supply and CPU after power-up or button release. |
| Operating Temp Range | -40°C to +85°C; qualified for industrial-grade embedded control and instrumentation environments. |
| Output Type | Open-drain RST with internal 5.5kΩ pullup; eliminates need for external pullup resistor in standard 5V systems. |
| Supply Current (ICC) | 30–40µA; enables low-power operation in battery-backed or energy-sensitive applications. |
| Pushbutton Detect Delay | 1µs minimum low pulse required; provides robust noise immunity against contact bounce. |
Pinout & Package
DS1813-10 is available in both TO-92 (3-pin through-hole) and SOT-23 (3-pin surface-mount) packages. Pin functions are identical across both variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST | Active-low reset output | Open-drain driver asserted low during power fault or pushbutton event; internal 5.5kΩ pullup enables 5V-compatible interface. |
| VCC | Power supply input | Monitored rail input; trip threshold applies only to this pin; supports 1.2V–5.5V operation but calibrated for 5V systems. |
| GND | Ground reference | Common return path for internal reference, comparator, and output stage; must be low-impedance for accurate trip point. |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated voltage reference | Stabilizes trip point over -40°C to +85°C, eliminating external compensation components. |
| Dual reset trigger sources | Simultaneous VCC monitoring and pushbutton detection enable both automatic and manual system recovery paths. |
| Guaranteed reset timeout | 100–300ms window ensures processor clock and peripherals stabilize before release-no external RC timing needed. |
| Integrated pullup resistor | 5.5kΩ internal pullup allows direct connection to 5V microcontroller reset pins without discrete BOM items. |
Applications
| Industrial PLC Controller | Smart Meter Power Supervision |
|---|---|
Use Scenario: Power interruption during firmware update causes brownout risk in DIN-rail mounted PLCs. IC Role / Device Role / Timing Role: DS1813-10 monitors 5V supply and asserts RST until stable; also accepts front-panel reset button press. Use Value: Prevents corrupted flash writes by enforcing 150ms post-brownout hold time and enabling field-serviceable manual reset. | Use Scenario: Utility smart meters require tamper-resistant, self-contained reset supervision under wide temperature swings. IC Role / Device Role / Timing Role: DS1813-10 serves as standalone reset supervisor with fixed 4.35V trip and guaranteed 150ms timeout. Use Value: Eliminates external voltage divider and RC network, reducing component count and improving long-term trip point drift performance. |
| Embedded HVAC Controller | Point-of-Sale Terminal |
Use Scenario: HVAC control boards experience repeated cold-start cycles and transient surges on 5V rails. IC Role / Device Role / Timing Role: DS1813-10 detects VCC sag below 4.25V and holds RST low for ≥100ms after recovery. Use Value: Ensures MCU completes boot sequence before peripheral initialization, avoiding sensor read errors or relay chatter. | Use Scenario: POS terminals use front-panel reset buttons for cashier-initiated reboots during transaction errors. IC Role / Device Role / Timing Role: DS1813-10 interprets brief RST pin pull-down as valid button press and asserts clean 150ms reset pulse. Use Value: Rejects mechanical bounce via 1µs minimum pulse requirement and delivers consistent reset duration regardless of button press speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-monitoring reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326TUT46+T | 4.63V fixed trip, 140ms reset timeout, SOT-23-3, same open-drain output | Higher trip voltage; suited for 5V systems where tighter margin above 4.5V is required | Select when system VCC must remain ≥4.63V for reliable operation; not drop-in due to different trip point |
| TPS3808G15DBVR | 1.5V adjustable trip via external resistor, 200ms timeout, higher ICC (1.5µA typ), SOT-23-6 | Requires external resistor network; supports custom thresholds but adds BOM complexity | Choose when trip voltage must be tuned below 4.25V or when longer timeout is mandatory |
Compared with MAX6326TUT46+T and TPS3808G15DBVR, the DS1813-10 offers factory-trimmed 4.35V trip with ±10% tolerance, integrated pullup, and pushbutton support-making it optimal for cost-sensitive, fixed-threshold 5V microcontroller reset applications without design flexibility requirements.
Availability
DS1813-10 is available at Aetrix Electronics and suitable for industrial PLC controllers, smart meter power supervision, and embedded HVAC systems requiring stable component supply, long-lifecycle availability, and proven reset reliability in harsh thermal environments.
Supply support for DS1813-10 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, communications, and computing applications, with emphasis on high-reliability, low-power, and integration-optimized solutions.
The DS1813-10 belongs to Maxim's EconoReset family of supervisory circuits, engineered specifically for cost-effective, single-chip microprocessor reset generation in 5V embedded systems with minimal external components.
FAQ
What is the exact VCC trip voltage range for DS1813-10?
The DS1813-10 has a guaranteed VCC trip point range of 4.25V (minimum) to 4.49V (maximum), with a typical value of 4.35V. This ±10% tolerance is factory-trimmed and specified over the full operating temperature range of -40°C to +85°C. The DS1813-10 uses an internal temperature-compensated reference to maintain trip accuracy without external calibration.
Does DS1813-10 require an external pullup resistor on the RST pin?
No, the DS1813-10 includes an internal 5.5kΩ pullup resistor on the open-drain RST output, enabling direct connection to a 5V microcontroller reset input without external components. This feature reduces BOM count and PCB area. The DS1813-10's internal pullup ensures proper VOH level and simplifies layout for standard 5V logic interfaces.
How does DS1813-10 handle pushbutton reset events?
The DS1813-10 detects a pushbutton reset when the RST pin is pulled low for at least 1µs. Upon release, it asserts RST low for 100–300ms (typically 150ms). This behavior is independent of VCC monitoring and provides a clean, debounced manual reset pulse. The DS1813-10 integrates this function without requiring external RC networks or logic gates.
What package options are available for DS1813-10?
The DS1813-10 is offered in two industry-standard packages: 3-pin TO-92 (through-hole) and 3-pin SOT-23 (surface-mount). Both share identical pinout (RST-VCC-GND) and electrical specifications. The DS1813-10's dual-package availability supports both prototyping/hand-soldering (TO-92) and high-volume automated assembly (SOT-23).
Is DS1813-10 compatible with 3.3V microcontrollers?
The DS1813-10 is optimized for 5V systems, with a 4.35V nominal trip point and internal 5.5kΩ pullup referenced to VCC. While it operates with VCC as low as 1.2V, its trip threshold is fixed and not scaled for 3.3V rails. For 3.3V applications, a dedicated 3.08V or 3.0V supervisor such as the DS1832-33 should be used instead of the DS1813-10.
DS1813-10 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:
- Obsolete
- 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
DS1813-10 FAQ
1.How can I place an order for DS1813-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1813-10 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 DS1813-10 reliable?
The price and inventory of DS1813-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1813-10 is usually 5 days.
3.What payment methods are accepted for DS1813-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1813-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1813-10?
DS1813-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1813-10 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 DS1813-10?
For technical support, including DS1813-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1813-10 requirements.
6.How does Aetrix verify that DS1813-10 is sourced from the original manufacturer or authorized distributors?
All DS1813-10 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 DS1813-10 meets industry standards.
7.What is the process for return or replacement of DS1813-10?
All DS1813-10 units undergo pre-shipment inspection (PSI). If there is an issue with DS1813-10, 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 DS1813-10 part is unused and in its original packaging.
Return procedure for DS1813-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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