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

Texas Instruments TPS3836L30DBVTG4

Name: TPS3836L30DBVTG4
Brand: Texas Instruments
SKU: TPS3836L30DBVTG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS3836L30DBVTG4

Manufacturer:: Texas Instruments

Category:: Supervisors

Package:: SC-74A, SOT-753

Datasheet:: TPS3836L30DBVTG4.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT23-5

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Product details

Overview

TPS3836L30DBVTG4 from Texas Instruments is a nano-power voltage supervisor IC with active-low push-pull RESET output, 2.64 V threshold (V_IT), selectable 10 ms or 200 ms reset delay via CT pin, and 220 nA typical supply current. It monitors supply rails in ultra-low-power microcontroller systems such as MSP430-based battery-powered devices.

For engineers reviewing the TPS3836L30DBVTG4 datasheet, TPS3836L30DBVTG4 pinout, TPS3836L30DBVTG4 application, or TPS3836L30DBVTG4 equivalent, key selection criteria include its precise 2.64 V undervoltage detection, manual reset (MR) support, SOT-23-5 package compatibility, and operation across –40°C to 85°C for portable industrial and embedded designs.

Technical Context

The TPS3836L30DBVTG4 implements a precision bandgap reference and comparator-based supervision architecture with hysteresis (V_HYS = 40 mV) to prevent false resets during supply transients. Its internal timer initiates after V_DD exceeds V_IT + V_HYS, enabling controlled deassertion of RESET only after stable voltage is confirmed.

Reset delay is determined solely by the CT pin state: grounded for 10 ms (typ), tied to V_DD for 200 ms (typ). The push-pull output drives high without external pull-up, supporting direct interface to MCU reset inputs requiring active-low assertion and fast propagation (t_PHL = 10 µs max).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.6 V to 6 V - supports Li-ion (3.6 V), coin-cell, and multi-rail embedded systems
Threshold Voltage (V_IT)	2.64 V (typ) - precisely supervises 3.0 V nominal supplies with ±3% tolerance over temperature
Supply Current (I_DD)	220 nA (typ) at V_DD < 3 V - enables multi-year battery life in always-on monitoring applications
Reset Delay Options	10 ms or 200 ms (selectable via CT pin) - provides flexibility for fast boot vs. deep-sleep wake-up timing
Output Type	Active-low push-pull - eliminates need for external pull-up resistor, reduces BOM count and board area
Propagation Delay (t_PHL)	10 µs (max) - ensures rapid response to undervoltage events without compromising system stability
Operating Temperature	–40°C to +85°C - qualified for industrial and extended-temperature portable equipment

Pinout & Package

TPS3836L30DBVTG4 is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size, surface-mount footprint, and RoHS-compliant NIPDAU lead finish (MSL Level-1).

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power input	Monitored supply rail; device operates and asserts RESET when VDD falls below 2.64 V
GND	Ground reference	Analog and digital ground return; must be low-impedance connection for accurate threshold sensing
CT	Delay configuration	Connect to GND for 10 ms delay, to VDD for 200 ms delay; no external capacitor required
MR	Manual reset input	Active-low logic input; forces RESET assertion independent of VDD condition when pulled low
RESET	Supervisor output	Active-low push-pull output; drives logic low during fault, high when valid - no pull-up needed

Key Features

Feature	Design Value
Nano-power consumption	220 nA typical I_DD enables >10-year battery life in lithium coin-cell applications
Precision voltage threshold	2.64 V ±3% over –40°C to +85°C ensures reliable 3.0 V rail supervision without calibration
Selectably timed reset delay	Hardware-configurable 10 ms / 200 ms delay eliminates firmware timing dependencies
Integrated manual reset	MR pin supports hardware-initiated system reset without processor intervention
Push-pull output architecture	Eliminates external pull-up resistor, reducing component count and PCB space in space-constrained designs

Applications

Portable Medical Sensors	MSP430-Based Data Loggers
Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring undervoltage lockout before sensor data corruption occurs. IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET to halt MCU execution when battery drops below 2.64 V. Use Value: Prevents invalid sensor readings and flash memory write corruption during brownout, extending usable battery life by avoiding premature shutdown.	Use Scenario: Environmental logger sampling temperature/humidity every 5 minutes using MSP430FR5969, operating from 3.6 V Li-ion cell. IC Role / Device Role / Timing Role: Monitors main supply and triggers hardware reset if voltage sags below 2.64 V during RF transmission burst. Use Value: Guarantees deterministic restart after power recovery, eliminating firmware hangs caused by marginal supply conditions.
Wireless IoT End Nodes	Industrial Handheld Scanners
Use Scenario: BLE-enabled asset tracker with intermittent GPS use, powered by single-cell LiPo, needing low-quiescent supervision. IC Role / Device Role / Timing Role: Nano-power supervisor providing 200 ms reset delay (CT = VDD) to ensure stable wake-up after deep sleep. Use Value: Enables reliable cold-start after battery recharge without software-based timing loops or additional RC networks.	Use Scenario: Rugged barcode scanner using ARM Cortex-M0+ MCU, subjected to frequent thermal cycling and vibration. IC Role / Device Role / Timing Role: Supervises 3.3 V LDO output feeding MCU core, asserting RESET on transient dips below 2.64 V. Use Value: Maintains functional safety by preventing erratic MCU behavior during power rail disturbances in harsh environments.

Portable Medical Sensors

MSP430-Based Data Loggers

Use Scenario: Continuous glucose monitor powered by CR2032 coin cell, requiring undervoltage lockout before sensor data corruption occurs.

IC Role / Device Role / Timing Role: Voltage supervisor asserting active-low RESET to halt MCU execution when battery drops below 2.64 V.

Use Value: Prevents invalid sensor readings and flash memory write corruption during brownout, extending usable battery life by avoiding premature shutdown.

Use Scenario: Environmental logger sampling temperature/humidity every 5 minutes using MSP430FR5969, operating from 3.6 V Li-ion cell.

IC Role / Device Role / Timing Role: Monitors main supply and triggers hardware reset if voltage sags below 2.64 V during RF transmission burst.

Use Value: Guarantees deterministic restart after power recovery, eliminating firmware hangs caused by marginal supply conditions.

Wireless IoT End Nodes

Industrial Handheld Scanners

Use Scenario: BLE-enabled asset tracker with intermittent GPS use, powered by single-cell LiPo, needing low-quiescent supervision.

IC Role / Device Role / Timing Role: Nano-power supervisor providing 200 ms reset delay (CT = VDD) to ensure stable wake-up after deep sleep.

Use Value: Enables reliable cold-start after battery recharge without software-based timing loops or additional RC networks.

Use Scenario: Rugged barcode scanner using ARM Cortex-M0+ MCU, subjected to frequent thermal cycling and vibration.

IC Role / Device Role / Timing Role: Supervises 3.3 V LDO output feeding MCU core, asserting RESET on transient dips below 2.64 V.

Use Value: Maintains functional safety by preventing erratic MCU behavior during power rail disturbances in harsh environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS3836K33DBVT	Higher threshold: 2.93 V (vs. 2.64 V); identical pinout, package, and features	Designed for 3.3 V nominal rails; unsuitable where 3.0 V rail margin requires tighter detection	Select TPS3836K33DBVT only when supervising 3.3 V supplies with ≥100 mV headroom above V_IT
TPS3837L30DBVT	Active-high push-pull RESET output (vs. active-low); same V_IT, delay options, and quiescent current	Requires MCU reset input compatible with active-high assertion; not drop-in for active-low designs	Choose TPS3837L30DBVT only when target MCU accepts active-high reset signals and layout allows signal inversion

Compared with TPS3836K33DBVT and TPS3837L30DBVT, the TPS3836L30DBVTG4 uniquely delivers 2.64 V threshold with active-low push-pull output-enabling direct interface to standard MCU reset pins while ensuring robust 3.0 V rail supervision without design compromises.

Availability

TPS3836L30DBVTG4 is available at Aetrix Electronics and suitable for portable medical sensors, MSP430-based data loggers, wireless IoT end nodes, industrial handheld scanners, and other applications requiring stable component supply with guaranteed long-term availability.

Supply support for TPS3836L30DBVTG4 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 specializing in analog and embedded processing technologies, with decades of leadership in power management and precision analog ICs.

The TPS3836 family is designed for ultra-low-power voltage supervision in battery-critical applications-delivering nanoscale current draw, factory-trimmed thresholds, and hardware-selectable timing without sacrificing reliability or temperature stability.

FAQ

What is the exact reset threshold voltage of the TPS3836L30DBVTG4?

The TPS3836L30DBVTG4 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 official TI datasheet SLVS292F. The 2.64 V threshold makes the TPS3836L30DBVTG4 ideal for supervising 3.0 V supply rails with appropriate hysteresis margin.

Does the TPS3836L30DBVTG4 require an external pull-up resistor on the RESET pin?

No, the TPS3836L30DBVTG4 does not require an external pull-up resistor because it features an active-low push-pull RESET output. Unlike open-drain variants (e.g., TPS3838), this architecture actively drives both high and low states, simplifying interface to MCUs with standard active-low reset inputs. This eliminates BOM cost and PCB routing overhead associated with external resistors.

How is the reset delay time configured on the TPS3836L30DBVTG4?

The reset delay time on the TPS3836L30DBVTG4 is configured exclusively via 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. This hardware-selectable method avoids firmware dependencies and ensures deterministic timing across temperature and voltage variations, as validated in the Switching Characteristics section of the datasheet.

Can the TPS3836L30DBVTG4 supervise a 1.8 V supply rail?

No, the TPS3836L30DBVTG4 is not suitable for 1.8 V rail supervision. Its fixed 2.64 V threshold is optimized for 3.0 V systems. For 1.8 V rails, TI offers the TPS3836E18 variant (V_IT = 1.71 V). Using TPS3836L30DBVTG4 on a 1.8 V rail would result in continuous RESET assertion, as V_DD never exceeds V_IT. Always match the TPS3836x suffix (E18/J25/H30/L30/K33) to the target supply voltage.

What is the maximum supply voltage rating for the TPS3836L30DBVTG4?

The TPS3836L30DBVTG4 has an absolute maximum VDD rating of 7 V, but its recommended operating range is 1.6 V to 6 V per the datasheet's Recommended Operating Conditions table. Exceeding 6 V risks violating safe operating area limits, especially under transient conditions. For 3.6 V Li-ion battery applications, the TPS3836L30DBVTG4 operates well within spec, with margin against peak charge voltages up to 4.2 V.

TPS3836L30DBVTG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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

TPS3836L30DBVTG4 FAQ

1.How can I place an order for TPS3836L30DBVTG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS3836L30DBVTG4 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 TPS3836L30DBVTG4 reliable?

The price and inventory of TPS3836L30DBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS3836L30DBVTG4 is usually 5 days.

3.What payment methods are accepted for TPS3836L30DBVTG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS3836L30DBVTG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS3836L30DBVTG4?

TPS3836L30DBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS3836L30DBVTG4 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 TPS3836L30DBVTG4?

For technical support, including TPS3836L30DBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS3836L30DBVTG4 requirements.

6.How does Aetrix verify that TPS3836L30DBVTG4 is sourced from the original manufacturer or authorized distributors?

All TPS3836L30DBVTG4 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 TPS3836L30DBVTG4 meets industry standards.

7.What is the process for return or replacement of TPS3836L30DBVTG4?

All TPS3836L30DBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS3836L30DBVTG4, 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 TPS3836L30DBVTG4 part is unused and in its original packaging.

Return procedure for TPS3836L30DBVTG4:

1.Submit a request within 90 days.

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

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