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

Texas Instruments TPS3836J25DBVT

Name: TPS3836J25DBVT
Brand: Texas Instruments
SKU: TPS3836J25DBVT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS3836J25DBVT

Manufacturer:: Texas Instruments

Category:: Supervisors

Package:: SC-74A, SOT-753

Datasheet:: TPS3836J25DBVT.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT23-5

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Product details

Overview

TPS3836J25DBVT from Texas Instruments is a nano-power voltage supervisor IC with active-low push-pull RESET output, 2.25 V threshold voltage (V_IT), 220 nA typical supply current, and selectable 10 ms or 200 ms reset delay via CT pin. It monitors supply rails in ultra-low-power microcontroller systems such as MSP430-based battery-powered sensors.

For engineers reviewing the TPS3836J25DBVT datasheet, TPS3836J25DBVT pinout, TPS3836J25DBVT application, or TPS3836J25DBVT equivalent, key selection criteria include its precise 2.25 V supervision level, SOT-23-5 package compatibility, manual reset input (MR), and guaranteed operation from –40°C to 85°C.

Technical Context

The TPS3836J25DBVT implements a precision bandgap-referenced comparator to detect VDD falling below 2.25 V (±2.5% over temperature), with 40 mV hysteresis (V_HYS) for noise immunity. Its internal timer initiates reset assertion only after VDD exceeds V_IT + V_HYS and remains stable for the selected delay period.

Reset delay is set by CT pin logic level: grounded for 10 ms (typical), tied to VDD for 200 ms (typical). The push-pull output drives RESET low without external pull-up, supporting direct interface to MCU reset inputs with 0.4 V max VOL at 2 mA sink current.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.6 V to 6 V - supports Li-ion, coin-cell, and regulated 3.3 V/2.5 V rails
Threshold Voltage (V_IT)	2.25 V (typical), ±2.5% over –40°C to 85°C - ensures reliable 2.5 V system supervision
Supply Current (I_DD)	220 nA (typical) at VDD > V_IT, VDD < 3 V - enables multi-year battery life in always-on monitoring
Reset Delay Options	10 ms (CT = GND) or 200 ms (CT = VDD) - configurable timing for power-rail stabilization or brownout recovery
Output Type	Active-low push-pull - eliminates need for external pull-up resistor, reduces BOM count and board space
Propagation Delay (t_PHL)	10 µs (max) from VDD drop to RESET assertion - ensures fast fault response before MCU state corruption
Operating Temperature	–40°C to 85°C - qualified for industrial and portable equipment environments

Pinout & Package

TPS3836J25DBVT uses the 5-pin SOT-23 (DBV) package: 2.90 mm × 1.60 mm body, 0.95 mm height, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power input and monitored supply rail	Input voltage sensed by internal comparator; device operates and supervises only when ≥1.1 V
GND	Reference ground	Return path for all internal circuitry and output stage; must be low-impedance connection
CT	Delay configuration control	Logic level selects reset timeout: GND → 10 ms, VDD → 200 ms; no external capacitor required
MR	Manual reset input	Active-low asynchronous trigger; asserts RESET immediately when pulled low, independent of VDD
RESET	Supervisor output	Push-pull, active-low signal; sinks up to 2 mA while asserted, drives high-Z when inactive

Key Features

Feature	Design Value
Nano-power operation	220 nA typical I_DD enables >10-year battery life in coin-cell applications
Precision 2.25 V threshold	Guaranteed ±2.5% tolerance over full temperature range ensures consistent 2.5 V rail supervision
Selectably timed reset	Hardware-configurable 10 ms / 200 ms delay eliminates firmware timing dependencies
Push-pull RESET output	Eliminates external pull-up resistor, reducing component count and PCB area in space-constrained designs
Manual reset input	Asynchronous MR pin allows system-level forced reset without cycling VDD power

Applications

Industrial Sensor Node	MSP430-Based Data Logger
Use Scenario: Remote environmental sensor powered by CR2032 coin cell, transmitting data every 5 minutes. IC Role / Device Role / Timing Role: Monitors VDD to prevent MCU operation during undervoltage; asserts RESET until battery recovers above 2.25 V + 40 mV for 200 ms. Use Value: Prevents corrupted EEPROM writes and invalid ADC readings during brownout, extending usable battery life by avoiding premature shutdown.	Use Scenario: Portable water-quality meter using MSP430FR5969 with integrated FRAM and low-power peripherals. IC Role / Device Role / Timing Role: Provides power-on reset and brownout detection on the 2.5 V analog supply rail feeding the ADC and op-amps. Use Value: Ensures clean MCU initialization and analog subsystem readiness before sampling begins, eliminating measurement offset drift from unstable supplies.
Wireless IoT Endpoint	Medical Wearable Monitor
Use Scenario: BLE-enabled temperature patch with lithium-polymer battery and sleep current <1 µA. IC Role / Device Role / Timing Role: Supervises main 3.3 V LDO output; CT tied to VDD for 200 ms delay to accommodate LDO startup transient. Use Value: Guarantees radio and sensor subsystems are fully powered and stable before firmware execution resumes from deep sleep.	Use Scenario: ECG patch requiring continuous operation for 72 hours on a 300 mAh LiPo battery. IC Role / Device Role / Timing Role: Resets the host MCU if battery voltage drops below 2.25 V, preventing unsafe operation near end-of-life. Use Value: Enforces safe shutdown before battery protection circuit triggers, preserving data integrity and enabling graceful firmware save.

Industrial Sensor Node

MSP430-Based Data Logger

Use Scenario: Remote environmental sensor powered by CR2032 coin cell, transmitting data every 5 minutes.

IC Role / Device Role / Timing Role: Monitors VDD to prevent MCU operation during undervoltage; asserts RESET until battery recovers above 2.25 V + 40 mV for 200 ms.

Use Value: Prevents corrupted EEPROM writes and invalid ADC readings during brownout, extending usable battery life by avoiding premature shutdown.

Use Scenario: Portable water-quality meter using MSP430FR5969 with integrated FRAM and low-power peripherals.

IC Role / Device Role / Timing Role: Provides power-on reset and brownout detection on the 2.5 V analog supply rail feeding the ADC and op-amps.

Use Value: Ensures clean MCU initialization and analog subsystem readiness before sampling begins, eliminating measurement offset drift from unstable supplies.

Wireless IoT Endpoint

Medical Wearable Monitor

Use Scenario: BLE-enabled temperature patch with lithium-polymer battery and sleep current <1 µA.

IC Role / Device Role / Timing Role: Supervises main 3.3 V LDO output; CT tied to VDD for 200 ms delay to accommodate LDO startup transient.

Use Value: Guarantees radio and sensor subsystems are fully powered and stable before firmware execution resumes from deep sleep.

Use Scenario: ECG patch requiring continuous operation for 72 hours on a 300 mAh LiPo battery.

IC Role / Device Role / Timing Role: Resets the host MCU if battery voltage drops below 2.25 V, preventing unsafe operation near end-of-life.

Use Value: Enforces safe shutdown before battery protection circuit triggers, preserving data integrity and enabling graceful firmware save.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS3836K33DBVT	3.3 V nominal threshold (2.93 V V_IT); identical pinout, package, and features	Designed for 3.3 V systems; not suitable for 2.5 V rail supervision	Select TPS3836J25DBVT for 2.5 V supply monitoring; use K33 variant only when threshold matches target rail.
MAX6326UT23+T	2.3 V fixed threshold, 1.6 µA quiescent current, SOT23-5, no manual reset	Lacks MR pin and CT-selectable delay; higher I_DD limits battery lifetime	Choose only if 2.3 V threshold suffices and manual reset is unnecessary; otherwise TPS3836J25DBVT offers superior power and flexibility.

Compared with TPS3836K33DBVT and MAX6326UT23+T, the TPS3836J25DBVT uniquely delivers 2.25 V supervision with nano-power consumption and hardware-configurable reset timing-critical for long-life 2.5 V microcontroller systems where precision and energy efficiency are non-negotiable.

Availability

TPS3836J25DBVT is available at Aetrix Electronics and suitable for industrial sensor nodes, MSP430-based data loggers, and wireless IoT endpoints requiring stable component supply across multi-year production cycles.

Supply support for TPS3836J25DBVT 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

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TPS383x family was designed specifically for ultra-low-power voltage supervision in battery-critical applications, emphasizing nanoscale quiescent current, precise factory-trimmed thresholds, and robust reset timing control.

FAQ

What is the exact threshold voltage of the TPS3836J25DBVT?

The TPS3836J25DBVT has a nominal threshold voltage (V_IT) of 2.25 V, with guaranteed tolerance of ±2.5% over the full operating temperature range (–40°C to 85°C). This value is factory-trimmed and specified in the Electrical Characteristics table of the official TI datasheet SLVS292F.

Does the TPS3836J25DBVT require an external pull-up resistor on the RESET pin?

No, the TPS3836J25DBVT features an active-low push-pull RESET output, meaning it actively drives both high and low states. Unlike open-drain variants (e.g., TPS3838), the TPS3836J25DBVT does not require an external pull-up resistor, simplifying design and reducing component count.

How is the reset delay time configured on the TPS3836J25DBVT?

The reset delay time on the TPS3836J25DBVT is set by the CT pin: connect CT to GND for a typical 10 ms delay, or to VDD for a typical 200 ms delay. No external capacitor is needed-the timing is internally generated and factory-characterized per configuration.

Can the TPS3836J25DBVT monitor a 1.8 V supply rail?

No-the TPS3836J25DBVT is specified for 2.5 V nominal supervision (2.25 V V_IT). For 1.8 V rails, TI recommends the TPS3836E18DBVT (1.71 V V_IT). Using TPS3836J25DBVT on a 1.8 V rail would result in permanent RESET assertion, as VDD never exceeds V_IT.

What is the maximum supply voltage rating for the TPS3836J25DBVT?

The TPS3836J25DBVT has an absolute maximum VDD rating of 7 V, but its recommended operating range is 1.6 V to 6 V. Operation above 6 V risks exceeding safe dissipation limits and may compromise long-term reliability-even briefly exceeding 7 V can cause permanent damage.

TPS3836J25DBVT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 2.25V

Output:: Push-Pull, Totem Pole

Reset:: Active Low

Reset Timeout:: 10ms Minimum

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

TPS3836J25DBVT FAQ

1.How can I place an order for TPS3836J25DBVT through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS3836J25DBVT 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 TPS3836J25DBVT reliable?

The price and inventory of TPS3836J25DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3836J25DBVT is usually 5 days.

3.What payment methods are accepted for TPS3836J25DBVT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3836J25DBVT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS3836J25DBVT?

TPS3836J25DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS3836J25DBVT 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 TPS3836J25DBVT?

For technical support, including TPS3836J25DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3836J25DBVT requirements.

6.How does Aetrix verify that TPS3836J25DBVT is sourced from the original manufacturer or authorized distributors?

All TPS3836J25DBVT 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 TPS3836J25DBVT meets industry standards.

7.What is the process for return or replacement of TPS3836J25DBVT?

All TPS3836J25DBVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS3836J25DBVT, 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 TPS3836J25DBVT part is unused and in its original packaging.

Return procedure for TPS3836J25DBVT:

1.Submit a request within 90 days.

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

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