Analog Devices Inc./Maxim Integrated DS1810-10

Overview

DS1810-10 from Maxim Integrated is a precision voltage supervisor IC with push-pull active-low reset output, 4.37 V typical VCC trip point, 150 ms reset timeout, and operation from 1.2 V to 5.5 V supply. It monitors power integrity in microprocessor systems and asserts reset during undervoltage conditions.

For engineers reviewing the DS1810-10 datasheet, DS1810-10 pinout, DS1810-10 application, or DS1810-10 equivalent, key selection factors include trip point tolerance (±0.12 V), guaranteed 150 ms reset hold time after VCC recovery, push-pull output drive capability (10 mA sink), and dual-package availability (TO-92/SOT-23) for legacy or space-constrained designs.

Technical Context

The DS1810-10 implements a temperature-compensated bandgap reference and comparator to detect VCC deviations against its factory-trimmed 4.25–4.49 V trip window. Its internal timing circuit ensures RST remains asserted for ≥100 ms and ≤300 ms after VCC returns to tolerance.

Unlike open-drain supervisors, the DS1810-10 uses a push-pull output stage capable of sourcing current (350 µA at 2.4 V) and sinking up to 10 mA at 0.4 V, enabling direct interface with TTL/CMOS inputs without external pull-up resistors.

Key Specifications

Pinout & Package

DS1810-10 is available in TO-92 and SOT-23 packages. Both share identical 3-pin configuration and pin function mapping.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3808G15 and MAX809, the DS1810-10 uniquely combines 4.37 V trip accuracy, push-pull output, and 1.2 V minimum operating voltage-enabling simpler, more robust reset control in cost-sensitive 5 V microcontroller applications without external components.

Availability

DS1810-10 is available at Aetrix Electronics and suitable for microcontroller power sequencing, industrial PLC monitoring, and embedded data logger brownout protection requiring stable component supply and long-term lifecycle support.

Supply support for DS1810-10 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, computing, and communications applications.

The DS1810-10 belongs to the EconoReset™ family-engineered for cost-effective, single-chip power-supply monitoring in resource-constrained microprocessor systems.

FAQ

What is the exact VCC trip point range for DS1810-10?

The DS1810-10 has a guaranteed VCC trip point range of 4.25 V (minimum) to 4.49 V (maximum), with a typical value of 4.37 V. This specification is factory-trimmed and temperature-compensated, ensuring consistent undervoltage detection across the full −40°C to +85°C operating range. The DS1810-10's trip window is specifically optimized for monitoring standard 5 V power rails.

Does DS1810-10 require an external pull-up resistor on the RST pin?

No, the DS1810-10 does not require an external pull-up resistor because it features a push-pull output stage. The RST pin actively drives high and low, sourcing up to 350 µA and sinking up to 10 mA. This eliminates the need for external components and simplifies interface with standard CMOS or TTL reset inputs-unlike open-drain alternatives such as MAX809.

Can DS1810-10 operate below 2.0 V VCC?

Yes, the DS1810-10 is fully specified to operate down to 1.2 V VCC, and its RST output remains valid even as VCC approaches 0 V when used with an external 100 kΩ pull-down resistor (per Figure 3 in the datasheet). This capability enables reliable reset assertion during deep brownout or battery-dead conditions-critical for data integrity in portable devices.

What is the guaranteed reset timeout duration for DS1810-10 after VCC recovery?

The DS1810-10 guarantees a reset timeout of 100 ms minimum and 300 ms maximum after VCC returns to within tolerance, with a typical value of 150 ms. This fixed delay ensures sufficient time for power supply and microprocessor stabilization before release of the reset signal-regardless of VCC slew rate-and is internally generated without external timing components.

Which packages are available for DS1810-10, and are their pinouts identical?

The DS1810-10 is offered in both TO-92 and SOT-23 packages, and both share identical 3-pin assignments: Pin 1 = RST (active-low push-pull output), Pin 2 = VCC (1.2–5.5 V supply), Pin 3 = GND. Mechanical drawings confirm identical functional pinout-enabling drop-in replacement between through-hole and surface-mount variants without redesign.