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

Analog Devices Inc./Maxim Integrated DS1833Z-10/T&R

Name: DS1833Z-10/T&R
Brand: Analog Devices Inc./Maxim Integrated
SKU: DS1833Z-10/T&R
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DS1833Z-10/T&R

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Supervisors

Package:: TO-261-4, TO-261AA

Datasheet:: DS1833Z-10/T&R.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT223-3

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Product details

Overview

DS1833Z-10/T&R from Maxim Integrated (now Analog Devices) is a precision 5V microprocessor supervisory circuit with 10% V_CC trip point, active-high reset output, and guaranteed 350 ms reset pulse width after power recovery. It integrates a temperature-compensated voltage reference, comparator, and internal 5 kΩ pull-up resistor in SOT-223 package. Used for reliable power-on reset in embedded controllers requiring stable 5V supply monitoring.

For engineers reviewing the DS1833Z-10/T&R datasheet, DS1833Z-10/T&R pinout, DS1833Z-10/T&R application, or DS1833Z-10/T&R equivalent, key selection criteria include V_CC trip accuracy (4.25–4.49 V), reset assertion timing (250–450 ms), operating current (1.5–2 mA), and SOT-223 thermal performance in industrial temperature range.

Technical Context

The DS1833Z-10/T&R implements a precision voltage-monitoring architecture using a temperature-compensated bandgap reference and high-gain comparator to detect V_CC deviations beyond ±10% of nominal 5V. Reset assertion occurs within 100 ns of out-of-tolerance detection, and release is delayed by 250–450 ms after V_CC returns to specification.

It operates across -40°C to +85°C with supply voltage range 1.2–5.5 V, draws only 1.5–2 mA quiescent current, and features an internal 3.75–6.25 kΩ pull-up on RST-eliminating external components required by discrete reset solutions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Trip Point	4.25–4.49 V (±10% of 5 V; ensures robust brown-out detection at defined threshold)
Reset Pulse Width	250–450 ms (guaranteed minimum 250 ms hold time for processor stabilization)
Reset Output Polarity	Active-high (directly interfaces with microcontrollers requiring high-asserted reset)
Supply Current	1.5–2 mA (low power consumption enables use in battery-backed or energy-constrained systems)
Operating Temp	-40°C to +85°C (supports industrial-grade reliability without derating)
Internal Pull-Up	3.75–6.25 kΩ (enables direct connection to CMOS inputs without external resistor)
V_CC Detect Delay	100 ns (fast response to supply collapse prevents premature processor execution)

Pinout & Package

SOT-223 package: 4-pin surface-mount, thermally enhanced plastic package with exposed thermal pad (pin 4 = GND). Pin 1 = GND, Pin 2 = RST (active-high open-drain output with internal pull-up), Pin 3 = V_CC, Pin 4 = GND (thermal and electrical ground).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Ground	Primary signal and power return path; connects to PCB ground plane for noise immunity
Pin 2	Reset Output	Active-high open-drain output; internal 5 kΩ pull-up enables direct CMOS interface without external component
Pin 3	V_CC Supply	Monitored 5V input; trip point tolerance (±10%) defined at this node
Pin 4	Ground (Thermal)	Dedicated thermal and low-impedance ground for heat dissipation and EMI reduction

Key Features

Feature	Design Value
Precision ±10% V_CC monitoring	Guarantees reset assertion at 4.25–4.49 V, eliminating manual calibration in 5V systems
350 ms typ. reset timeout	Ensures sufficient delay for power rail settling and CPU clock stabilization before release
Integrated 5 kΩ pull-up resistor	Removes need for external pull-up, reducing BOM count and board space in compact designs
Temperature-compensated reference	Maintains trip point accuracy across -40°C to +85°C without external compensation circuitry
Low 2 mA max supply current	Minimizes impact on system power budget, especially critical in always-on or standby modes

Applications

Industrial PLC Controller	Medical Diagnostic Device
Use Scenario: Power cycling during field maintenance or transient line sags in factory-floor automation cabinets. IC Role / Device Role / Timing Role: Supervisory reset generator ensuring deterministic boot sequence after brown-out events. Use Value: Prevents corrupted firmware execution by enforcing 350 ms minimum reset hold time post-recovery.	Use Scenario: Uninterruptible operation during AC mains interruption in portable ultrasound or patient monitors. IC Role / Device Role / Timing Role: Voltage monitor triggering controlled shutdown and safe restart upon 5V rail restoration. Use Value: Guarantees ±10% trip accuracy over full temperature range, avoiding false resets in thermally variable enclosures.
Smart Energy Meter	Automotive Body Control Module
Use Scenario: Voltage dips caused by load switching (e.g., relay actuation) in DIN-rail mounted meters. IC Role / Device Role / Timing Role: Brown-out detector with fast 100 ns response to prevent EEPROM write corruption. Use Value: Internal pull-up eliminates external resistor, improving layout density and long-term reliability in high-vibration environments.	Use Scenario: Ignition cycling and alternator ripple-induced supply fluctuations in 12V-to-5V regulated domains. IC Role / Device Role / Timing Role: System-level reset supervisor coordinating MCU, CAN transceiver, and sensor interface startup. Use Value: 1.5–2 mA quiescent current supports low-power sleep mode compliance per automotive OEM specifications.

Industrial PLC Controller

Medical Diagnostic Device

Use Scenario: Power cycling during field maintenance or transient line sags in factory-floor automation cabinets.

IC Role / Device Role / Timing Role: Supervisory reset generator ensuring deterministic boot sequence after brown-out events.

Use Value: Prevents corrupted firmware execution by enforcing 350 ms minimum reset hold time post-recovery.

Use Scenario: Uninterruptible operation during AC mains interruption in portable ultrasound or patient monitors.

IC Role / Device Role / Timing Role: Voltage monitor triggering controlled shutdown and safe restart upon 5V rail restoration.

Use Value: Guarantees ±10% trip accuracy over full temperature range, avoiding false resets in thermally variable enclosures.

Smart Energy Meter

Automotive Body Control Module

Use Scenario: Voltage dips caused by load switching (e.g., relay actuation) in DIN-rail mounted meters.

IC Role / Device Role / Timing Role: Brown-out detector with fast 100 ns response to prevent EEPROM write corruption.

Use Value: Internal pull-up eliminates external resistor, improving layout density and long-term reliability in high-vibration environments.

Use Scenario: Ignition cycling and alternator ripple-induced supply fluctuations in 12V-to-5V regulated domains.

IC Role / Device Role / Timing Role: System-level reset supervisor coordinating MCU, CAN transceiver, and sensor interface startup.

Use Value: 1.5–2 mA quiescent current supports low-power sleep mode compliance per automotive OEM specifications.

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor supervisory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX6326US31D3+T	3.08 V fixed trip point; 200 ms min reset timeout; no internal pull-up	Designed for 3.3V systems; requires external pull-up and different V_CC scaling	Select when 3.3V monitoring and tighter 2% trip accuracy are required
TPS3808G33DBVR	3.3 V trip; adjustable reset timeout (up to 2 sec); 1.5 µA quiescent current	Ultra-low-power biasing; optimized for battery-powered IoT nodes, not 5V industrial rails	Prefer for energy-harvesting or coin-cell applications where DS1833Z-10/T&R's 2 mA draw is excessive

Compared with MAX6326US31D3+T and TPS3808G33DBVR, the DS1833Z-10/T&R delivers purpose-built 5V ±10% monitoring with integrated pull-up and industrial thermal range-making it optimal for cost-sensitive, high-volume 5V embedded control where external component count and proven field reliability are prioritized over ultra-low I_Q or sub-1% trip tolerance.

Availability

DS1833Z-10/T&R is available at Aetrix Electronics and suitable for industrial PLC controllers, medical diagnostic devices, smart energy meters, and automotive body control modules requiring stable component supply and long-term manufacturability.

Supply support for DS1833Z-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 infrastructure.

The DS1833Z-10/T&R belongs to the EconoReset™ family of supervisory circuits engineered for cost-effective, high-reliability power monitoring in 5V microprocessor systems with minimal external components.

FAQ

What is the exact V_CC trip voltage range for DS1833Z-10/T&R?

The DS1833Z-10/T&R has a guaranteed V_CC trip point range of 4.25 V to 4.49 V at +25°C, corresponding to ±10% tolerance around nominal 5V. This range is maintained across the full -40°C to +85°C operating temperature with temperature-compensated reference circuitry, as confirmed in the DC Electrical Characteristics table of the official datasheet.

Does DS1833Z-10/T&R require an external pull-up resistor on the RST pin?

No, DS1833Z-10/T&R includes an internal pull-up resistor of 3.75–6.25 kΩ on the RST pin, enabling direct connection to standard CMOS inputs without external components. This feature reduces BOM count and improves layout simplicity-verified in the "DC Electrical Characteristics" section under "Internal Pull-Up Resistor" parameter.

What is the reset pulse width behavior of DS1833Z-10/T&R during power-up and power-down?

During power-up, DS1833Z-10/T&R asserts RST for 250–450 ms after V_CC reaches the in-tolerance window. During power-down, RST is asserted within 100 ns of V_CC falling below the trip threshold. Both behaviors are specified in the AC Electrical Characteristics table and ensure deterministic microprocessor initialization and fault response.

Can DS1833Z-10/T&R be used in 3.3V systems?

No-DS1833Z-10/T&R is specifically designed for 5V systems with a ±10% trip point centered at 5V (4.25–4.49 V). Its operating supply range extends down to 1.2V, but the trip threshold is fixed and unadjustable. For 3.3V monitoring, Analog Devices offers alternatives like the MAX6326 series with 3.08V trip points.

What package type is supplied for DS1833Z-10/T&R?

DS1833Z-10/T&R is supplied in the SOT-223 package, a 4-pin surface-mount outline with an exposed thermal pad (Pin 4 = GND). This package provides superior thermal performance over TO-92 and is compatible with standard reflow soldering processes-confirmed in the "Ordering Information" and mechanical drawings sections of the DS1833 datasheet.

DS1833Z-10/T&R Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: EconoReset

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 4.375V

Output:: Push-Pull, Totem Pole

Reset:: Active High

Reset Timeout:: 250ms Minimum

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223-3

DS1833Z-10/T&R FAQ

1.How can I place an order for DS1833Z-10/T&R through Aetrix?

Please submit a Request for Quotation (RFQ) for DS1833Z-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 DS1833Z-10/T&R reliable?

The price and inventory of DS1833Z-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 DS1833Z-10/T&R is usually 5 days.

3.What payment methods are accepted for DS1833Z-10/T&R?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1833Z-10/T&R transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DS1833Z-10/T&R?

DS1833Z-10/T&R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DS1833Z-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 DS1833Z-10/T&R?

For technical support, including DS1833Z-10/T&R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1833Z-10/T&R requirements.

6.How does Aetrix verify that DS1833Z-10/T&R is sourced from the original manufacturer or authorized distributors?

All DS1833Z-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 DS1833Z-10/T&R meets industry standards.

7.What is the process for return or replacement of DS1833Z-10/T&R?

All DS1833Z-10/T&R units undergo pre-shipment inspection (PSI). If there is an issue with DS1833Z-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 DS1833Z-10/T&R part is unused and in its original packaging.

Return procedure for DS1833Z-10/T&R:

1.Submit a request within 90 days.

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

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