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

Texas Instruments TPS3836L30DBVR

Name: TPS3836L30DBVR
Brand: Texas Instruments
SKU: TPS3836L30DBVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS3836L30DBVR

Manufacturer:: Texas Instruments

Category:: Supervisors

Package:: SC-74A, SOT-753

Datasheet:: TPS3836L30DBVR.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT23-5

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Product details

Overview

TPS3836L30DBVR from Texas Instruments is a nano-power voltage supervisor IC with active-low push-pull RESET output, 2.64 V threshold voltage (V_IT), 220 nA typical supply current, and selectable 10 ms or 200 ms reset delay via CT pin - used for undervoltage monitoring and system reset initiation in battery-powered microcontroller applications.

For engineers reviewing the TPS3836L30DBVR datasheet, TPS3836L30DBVR pinout, TPS3836L30DBVR application, or TPS3836L30DBVR equivalent, this page delivers verified electrical parameters, package mapping to SOT-23-5, functional mode behavior under VDD/MR transitions, and validated alternative options for low-power supervisory design.

Technical Context

The TPS3836L30DBVR integrates a precision bandgap reference, comparator with hysteresis (V_HYS = 40 mV), and a refresh timer that initiates reset assertion when VDD falls below 2.64 V or MR is pulled low. Its internal logic ensures RESET remains active until VDD exceeds V_IT + V_HYS and the selected delay (10 ms or 200 ms) elapses.

It operates across –40°C to 85°C, supports 1.6 V to 6 V supply range, and features propagation delays of ≤10 µs (t_PHL) from VDD or MR to RESET assertion. The push-pull output eliminates need for external pull-up resistors and drives loads up to 2 mA.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.6 V to 6 V - supports single-cell Li-ion (3.0–3.6 V), alkaline, or coin-cell systems without external regulation.
Threshold Voltage (V_IT)	2.64 V (typical) - precisely monitors 3.0 V nominal rails with ±3% tolerance over temperature, enabling reliable brownout detection.
Supply Current (I_DD)	220 nA (typical) at VDD > V_IT, VDD < 3 V - extends battery life in always-on monitoring applications beyond 10 years on a CR2032.
Reset Delay Options	Selectable 10 ms (CT = GND) or 200 ms (CT = VDD) - configurable timing avoids false resets during power ramp-up or transient dips.
Output Type	Active-low push-pull RESET - provides rail-to-rail drive capability (VOL = 0.4 V @ 2 mA) without external components.
Hysteresis (V_HYS)	40 mV - prevents oscillation during slow VDD recovery near threshold, ensuring clean, glitch-free reset release.
Propagation Delay (t_PHL)	≤10 µs - guarantees fast fault response to undervoltage events, critical for real-time MCU safety sequences.

Pinout & Package

TPS3836L30DBVR is housed in a 5-pin SOT-23 (DBV) package, 2.90 mm × 1.60 mm body size, with exposed pad not connected. Pin 1 is VDD; pin 2 is GND; pin 3 is CT; pin 4 is MR; pin 5 is RESET. All pins are surface-mount compatible with standard reflow profiles (MSL Level-1).

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power input and monitored supply rail	Primary voltage source; device asserts RESET when VDD drops below 2.64 V or rises above it with hysteresis and delay.
GND	Analog and digital ground reference	Return path for internal reference and comparator; must be low-impedance to ensure threshold accuracy.
CT	Reset delay configuration input	Connect to GND for 10 ms delay or to VDD for 200 ms delay; high-impedance node draws <25 nA.
MR	Manual reset input (active-low)	Pulling MR low forces immediate RESET assertion; unused MR must tie to VDD to minimize leakage current.
RESET	Active-low push-pull output	Drives low (≤0.4 V @ 2 mA) during fault; returns high (≥0.8×VDD) after delay; no pull-up required.

Key Features

Feature	Design Value
Nano-power operation	220 nA typical I_DD enables multi-year battery life in portable medical sensors and IoT endpoints.
Fixed 2.64 V supervision threshold	Matches 3.0 V system rails with tight tolerance; eliminates need for external resistor dividers or trimming.
Selectably timed reset delay	Hardware-configurable 10 ms / 200 ms delay via CT pin - no firmware or external RC network required.
Push-pull active-low RESET	Eliminates external pull-up resistor, reduces BOM count, and ensures defined logic levels under all load conditions.
Integrated hysteresis (40 mV)	Prevents chatter during marginal VDD recovery, avoiding repeated MCU resets in noisy or weak-supply environments.

Applications

Lithium-Ion Battery Monitoring	MSP430-Based Sensor Node
Use Scenario: Monitors 3.6 V Li-ion cell voltage during discharge to prevent deep depletion and protect battery health. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET to MSP430 when cell voltage drops below 2.64 V, holding reset for 200 ms after recovery. Use Value: Prevents MCU operation below safe operating voltage, avoids data corruption, and extends battery cycle life by enforcing shutdown before 2.5 V cutoff.	Use Scenario: Provides cold-start reset and brownout protection for an MSP430FR5969 in a wireless environmental sensor. IC Role / Device Role / Timing Role: Generates power-on reset pulse and detects supply sags during RF transmission bursts; CT tied to VDD for 200 ms immunity to transients. Use Value: Ensures deterministic boot sequence and prevents lockup during intermittent power dips caused by BLE radio activity.
Portable Medical Instrument	Low-Power Industrial Data Logger
Use Scenario: Supervises regulated 3.0 V rail powering analog front-end and ADC in handheld blood glucose meter. IC Role / Device Role / Timing Role: Asserts RESET if regulated output falls due to aging LDO or capacitor degradation; manual reset available via test button (MR). Use Value: Guarantees measurement integrity by halting sampling and display when supply margin erodes, meeting IEC 60601-1 reliability requirements.	Use Scenario: Watches primary 3.0 V supply in solar-charged remote logger with EEPROM and RTC. IC Role / Device Role / Timing Role: Triggers hardware reset before EEPROM write operations commence, ensuring valid VDD during nonvolatile memory access. Use Value: Eliminates risk of corrupted log entries or clock drift by synchronizing reset assertion with supply stability, independent of firmware state.

Lithium-Ion Battery Monitoring

MSP430-Based Sensor Node

Use Scenario: Monitors 3.6 V Li-ion cell voltage during discharge to prevent deep depletion and protect battery health.

IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET to MSP430 when cell voltage drops below 2.64 V, holding reset for 200 ms after recovery.

Use Value: Prevents MCU operation below safe operating voltage, avoids data corruption, and extends battery cycle life by enforcing shutdown before 2.5 V cutoff.

Use Scenario: Provides cold-start reset and brownout protection for an MSP430FR5969 in a wireless environmental sensor.

IC Role / Device Role / Timing Role: Generates power-on reset pulse and detects supply sags during RF transmission bursts; CT tied to VDD for 200 ms immunity to transients.

Use Value: Ensures deterministic boot sequence and prevents lockup during intermittent power dips caused by BLE radio activity.

Portable Medical Instrument

Low-Power Industrial Data Logger

Use Scenario: Supervises regulated 3.0 V rail powering analog front-end and ADC in handheld blood glucose meter.

IC Role / Device Role / Timing Role: Asserts RESET if regulated output falls due to aging LDO or capacitor degradation; manual reset available via test button (MR).

Use Value: Guarantees measurement integrity by halting sampling and display when supply margin erodes, meeting IEC 60601-1 reliability requirements.

Use Scenario: Watches primary 3.0 V supply in solar-charged remote logger with EEPROM and RTC.

IC Role / Device Role / Timing Role: Triggers hardware reset before EEPROM write operations commence, ensuring valid VDD during nonvolatile memory access.

Use Value: Eliminates risk of corrupted log entries or clock drift by synchronizing reset assertion with supply stability, independent of firmware state.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS3836H30DBVR	2.79 V threshold (vs. 2.64 V); same package, pinout, and features	Designed for 3.0 V systems with higher margin; less sensitive to minor VDD droop	Choose when system brownout threshold must be ≥2.75 V to tolerate LDO dropout or PCB trace loss.
TPS3836K33DBVR	2.93 V threshold (vs. 2.64 V); identical nano-power, delay, and output architecture	Optimized for 3.3 V rails; requires higher VDD to assert reset	Use where main supply is 3.3 V ±5% and undervoltage must trigger only below 2.85 V to avoid nuisance resets.

Compared with TPS3836H30DBVR and TPS3836K33DBVR, the TPS3836L30DBVR provides the lowest threshold in the family (2.64 V), making it uniquely suited for early-warning undervoltage detection in 3.0 V systems with tight supply margins or aging batteries.

Availability

TPS3836L30DBVR is available at Aetrix Electronics and suitable for lithium-ion battery management, MSP430-based sensor nodes, and portable medical instrumentation requiring stable component supply, long-lifecycle support, and guaranteed nano-power performance.

Supply support for TPS3836L30DBVR 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 delivering analog and embedded processing solutions, with leadership in low-power design, precision analog, and industrial-grade reliability.

The TPS3836 family is part of TI's nano-power supervisor product line, engineered specifically for battery-critical applications where ultra-low quiescent current, precise voltage thresholds, and robust reset timing are mandatory.

FAQ

What is the exact reset threshold voltage of the TPS3836L30DBVR?

The TPS3836L30DBVR has a nominal threshold voltage (V_IT) of 2.64 V, with a guaranteed range of 2.56 V to 2.69 V over –40°C to 85°C. This value is factory-trimmed and specified in the Electrical Characteristics table of the SLVS292F datasheet, making it suitable for precise 3.0 V rail supervision.

Does the TPS3836L30DBVR require an external pull-up resistor on the RESET pin?

No, the TPS3836L30DBVR features an active-low push-pull RESET output, which actively drives both high and low states. Unlike open-drain variants (e.g., TPS3838), it does not require an external pull-up resistor - simplifying layout and reducing component count in space-constrained designs.

How is the reset delay time configured on the TPS3836L30DBVR?

The reset delay time on the TPS3836L30DBVR 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. This hardware-selectable timing eliminates dependency on external capacitors or firmware configuration, ensuring deterministic behavior across temperature and voltage.

Can the TPS3836L30DBVR monitor supplies below 1.8 V?

No - while the TPS3836L30DBVR operates down to 1.6 V (per Recommended Operating Conditions), its fixed 2.64 V threshold means it cannot supervise rails below ~2.5 V. For sub-1.8 V systems, consider the TPS3836E18DBVR (1.71 V threshold) instead; the L30 variant is optimized for 3.0 V nominal supplies.

What is the maximum supply voltage the TPS3836L30DBVR can withstand?

The TPS3836L30DBVR has an absolute maximum VDD rating of 7 V. However, its recommended operating range is 1.6 V to 6 V. Exceeding 6 V risks violating recommended conditions and may impact long-term reliability, even if within absolute limits - design margins should keep VDD ≤6 V in normal operation.

TPS3836L30DBVR 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:: 2.64V

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

TPS3836L30DBVR FAQ

1.How can I place an order for TPS3836L30DBVR through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS3836L30DBVR 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 TPS3836L30DBVR reliable?

The price and inventory of TPS3836L30DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3836L30DBVR is usually 5 days.

3.What payment methods are accepted for TPS3836L30DBVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3836L30DBVR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS3836L30DBVR?

TPS3836L30DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS3836L30DBVR 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 TPS3836L30DBVR?

For technical support, including TPS3836L30DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3836L30DBVR requirements.

6.How does Aetrix verify that TPS3836L30DBVR is sourced from the original manufacturer or authorized distributors?

All TPS3836L30DBVR 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 TPS3836L30DBVR meets industry standards.

7.What is the process for return or replacement of TPS3836L30DBVR?

All TPS3836L30DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS3836L30DBVR, 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 TPS3836L30DBVR part is unused and in its original packaging.

Return procedure for TPS3836L30DBVR:

1.Submit a request within 90 days.

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

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