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

Texas Instruments TLV810SDBZT

Name: TLV810SDBZT
Brand: Texas Instruments
SKU: TLV810SDBZT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLV810SDBZT

Manufacturer:: Texas Instruments

Category:: Supervisors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: TLV810SDBZT.pdf

Description:: IC SUPERVISOR 1 CHANNEL SOT23-3

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Product details

Overview

TLV810SDBZT from Texas Instruments is a 3-pin voltage supervisor IC with active-high push-pull RESET output, precision 2.93 V threshold voltage (V_IT–), 200 ms fixed reset delay time, and 9 µA typical supply current. It monitors 3.3 V power rails in microcontroller-based systems and ensures reliable power-on initialization under –40°C to +125°C industrial temperature conditions.

For engineers reviewing the TLV810SDBZT datasheet, TLV810SDBZT pinout, TLV810SDBZT application, or TLV810SDBZT equivalent, key selection criteria include its SOT-23-3 package compatibility, push-pull output drive capability (±4 mA), precise 2.93 V trip point with 40 mV hysteresis, and immunity to fast VDD transients per Figure 14-1.

Technical Context

The TLV810SDBZT integrates an internal 1.137 V reference, comparator, oscillator-based timer, and push-pull output stage. Its reset assertion begins when VDD exceeds 1.1 V, and it holds RESET high until VDD rises above 2.93 V and remains stable for 200 ms (typical).

It features built-in transient rejection: only VDD dips exceeding both amplitude and duration thresholds defined in Figure 13-5 trigger reset. No external components are required-threshold, timing, and output drive are fully internal.

Key Specifications

Parameter	Value and Actual Design Meaning
Threshold Voltage (V_IT–)	2.93 V ±0.06 V - precisely matches 3.3 V LDO output monitoring without external resistor divider.
Reset Delay Time (t_d)	200 ms (typ) - ensures full processor core and peripheral stabilization before release of RESET signal.
Supply Current (I_DD)	9 µA (typ) at 2 V - enables ultra-low-power operation in battery-backed or energy-sensitive applications.
Output Type	Active-high push-pull - drives RESET line directly without pull-up resistor; sinks/sours up to ±4 mA.
Operating Temperature	–40°C to +125°C - qualified for under-hood automotive, industrial PLC, and extended-range embedded systems.
Hysteresis (V_hys)	40 mV - prevents oscillation during slow-rising or noisy supply ramps near threshold.
VDD Range	1.1 V to 6 V - supports valid reset assertion down to brown-out detection at 1.1 V, before logic becomes functional.

Pinout & Package

SOT-23-3 (DBZ) package: 1.12 mm max height, 2.80 × 1.40 mm footprint, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.

Pin/Terminal	Circuit Role	Design Meaning
1 (RESET)	Active-high push-pull output	Drives microcontroller RESET pin directly; no external pull-up needed; sinks 5 mA / sources 5 mA.
2 (VDD)	Power supply input	Accepts 1.1–6 V; internally powers reference, comparator, and timer; triggers reset on undervoltage.
3 (GND)	Ground reference	Return path for internal circuitry and output stage; must be low-impedance connection to system ground plane.

Key Features

Feature	Design Value
Precision 2.93 V threshold	Matches standard 3.3 V rail tolerance (±3%) without calibration; eliminates need for external resistive divider.
200 ms fixed reset timeout	Guarantees sufficient hold time for DSP/ASIC boot sequence completion before releasing reset control.
9 µA typical quiescent current	Reduces standby power in always-on subsystems-e.g., real-time clock backup domains or sensor wake logic.
Push-pull RESET output	Enables direct interface to bidirectional MCU reset pins when used with series resistor (e.g., 47 kΩ per Fig. 14-3).
–40°C to +125°C operation	Validated across full automotive and industrial temperature range; no derating required for thermal design.

Applications

Microcontroller Power Sequencing	Automotive Body Control Module
Use Scenario: Ensures clean startup of ARM Cortex-M4 MCU after cold crank or battery recovery in 12 V vehicle systems. IC Role / Device Role / Timing Role: Monitors 3.3 V domain derived from buck converter; asserts RESET until VDD stabilizes >2.93 V and holds for 200 ms. Use Value: Prevents firmware lockup due to marginal supply during engine start; eliminates need for discrete RC timing network.	Use Scenario: Supervises power to LIN transceiver and EEPROM in door module during ignition cycling. IC Role / Device Role / Timing Role: Detects 3.3 V rail collapse below 2.93 V during load dump or alternator dropout; reasserts RESET within 1 µs (t_w). Use Value: Guarantees EEPROM write integrity and LIN bus state machine recovery without host intervention.
Industrial Programmable Logic Controller	Portable Medical Sensor Hub
Use Scenario: Provides deterministic reset to FPGA-configured I/O controller during AC mains interruption and UPS switchover. IC Role / Device Role / Timing Role: Watches isolated 3.3 V DC-DC output; generates 200 ms reset pulse synchronized to VDD recovery edge. Use Value: Eliminates FPGA configuration corruption risk during brief (<50 ms) brownouts common in factory floor environments.	Use Scenario: Manages power-on sequencing for Bluetooth LE SoC and analog front-end in handheld diagnostic device. IC Role / Device Role / Timing Role: Monitors coin-cell–backed 3.3 V LDO; asserts RESET during battery swap or low-battery cutoff. Use Value: Maintains data coherency across sleep/wake transitions; draws only 9 µA during multi-week standby.

Microcontroller Power Sequencing

Automotive Body Control Module

Use Scenario: Ensures clean startup of ARM Cortex-M4 MCU after cold crank or battery recovery in 12 V vehicle systems.

IC Role / Device Role / Timing Role: Monitors 3.3 V domain derived from buck converter; asserts RESET until VDD stabilizes >2.93 V and holds for 200 ms.

Use Value: Prevents firmware lockup due to marginal supply during engine start; eliminates need for discrete RC timing network.

Use Scenario: Supervises power to LIN transceiver and EEPROM in door module during ignition cycling.

IC Role / Device Role / Timing Role: Detects 3.3 V rail collapse below 2.93 V during load dump or alternator dropout; reasserts RESET within 1 µs (t_w).

Use Value: Guarantees EEPROM write integrity and LIN bus state machine recovery without host intervention.

Industrial Programmable Logic Controller

Portable Medical Sensor Hub

Use Scenario: Provides deterministic reset to FPGA-configured I/O controller during AC mains interruption and UPS switchover.

IC Role / Device Role / Timing Role: Watches isolated 3.3 V DC-DC output; generates 200 ms reset pulse synchronized to VDD recovery edge.

Use Value: Eliminates FPGA configuration corruption risk during brief (<50 ms) brownouts common in factory floor environments.

Use Scenario: Manages power-on sequencing for Bluetooth LE SoC and analog front-end in handheld diagnostic device.

IC Role / Device Role / Timing Role: Monitors coin-cell–backed 3.3 V LDO; asserts RESET during battery swap or low-battery cutoff.

Use Value: Maintains data coherency across sleep/wake transitions; draws only 9 µA during multi-week standby.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV809SDBZT	Same 2.93 V threshold and SOT-23-3 package, but open-drain RESET output requiring external pull-up.	Requires additional 10–100 kΩ resistor; incompatible with MCU pins lacking internal pull-up or needing active drive.	Select TLV809SDBZT only if system already uses open-drain reset topology or needs wired-OR reset combining.
MAX810SRAZ+T	Pin-for-pin compatible per datasheet; identical 2.93 V threshold, 200 ms delay, and push-pull output-but higher 15 µA supply current and narrower –40°C to +85°C temp range.	Limited to commercial/industrial ambient; not suitable for under-hood or extended-temperature deployments.	Choose MAX810SRAZ+T only for legacy designs where TI qualification is not required and temperature range is ≤+85°C.

Compared with TLV810SDBZT, TLV809SDBZT trades push-pull drive for open-drain flexibility at the cost of BOM count, while MAX810SRAZ+T offers drop-in replacement in non-extended-temp applications but sacrifices 60% higher quiescent current and 40°C less thermal margin.

Availability

TLV810SDBZT is available at Aetrix Electronics and suitable for microcontroller power sequencing, automotive body control modules, industrial programmable logic controllers, portable medical sensor hubs, and battery-powered instrumentation requiring stable component supply across extended temperature ranges.

Supply support for TLV810SDBZT 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 TLV810 family is part of TI's precision voltage supervisor product line, engineered specifically for robust power-on reset generation in space-constrained, thermally demanding embedded systems using 3.3 V rails.

FAQ

What is the exact reset threshold voltage of the TLV810SDBZT?

The TLV810SDBZT has a guaranteed negative-going input threshold voltage (V_IT–) of 2.93 V, with min/max specification of 2.87 V to 2.99 V over temperature. This value is laser-trimmed during production and applies specifically to the TLV810S variant-other TLV810 family members (e.g., TLV810M, TLV810R) have different thresholds.

Does the TLV810SDBZT require any external components to operate?

No, the TLV810SDBZT requires zero external components. Its 2.93 V threshold, 200 ms reset delay, and push-pull output are fully integrated. A 0.1 µF ceramic bypass capacitor is recommended near VDD/GND per datasheet Section 9 Note (2), but it is not mandatory for basic functionality.

Can the TLV810SDBZT drive a microcontroller's bidirectional reset pin directly?

The TLV810SDBZT can drive a bidirectional reset pin, but a series resistor (e.g., 47 kΩ per Figure 14-3) is required between RESET and the MCU pin to prevent contention current if both devices attempt to drive the line simultaneously. Direct connection without isolation risks excessive current flow and potential latch-up.

What is the minimum VDD voltage at which TLV810SDBZT asserts a valid RESET signal?

The TLV810SDBZT begins asserting RESET when VDD exceeds 1.1 V. Below 1.1 V, the output is undefined. This 1.1 V power-up reset voltage ensures early fault detection before digital logic becomes operational, and is independent of the 2.93 V threshold used for sustained supervision.

How does the TLV810SDBZT handle fast voltage transients on the VDD pin?

The TLV810SDBZT rejects fast VDD transients based on amplitude/duration correlation shown in Figure 13-5. Transients shorter than ~1 µs or with insufficient overdrive (VDD – V_IT–) do not trigger reset. Only combinations above the curve-e.g., 100 mV dip lasting >10 µs-cause output assertion, preventing false resets from switching noise.

TLV810SDBZT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Simple Reset/Power-On Reset

Number of Voltages Monitored:: 1

Voltage - Threshold:: 2.93V

Output:: Push-Pull, Totem Pole

Reset:: Active High

Reset Timeout:: 120ms Minimum

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

TLV810SDBZT FAQ

1.How can I place an order for TLV810SDBZT through Aetrix?

Please submit a Request for Quotation (RFQ) for TLV810SDBZT 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 TLV810SDBZT reliable?

The price and inventory of TLV810SDBZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV810SDBZT is usually 5 days.

3.What payment methods are accepted for TLV810SDBZT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV810SDBZT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLV810SDBZT?

TLV810SDBZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLV810SDBZT 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 TLV810SDBZT?

For technical support, including TLV810SDBZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV810SDBZT requirements.

6.How does Aetrix verify that TLV810SDBZT is sourced from the original manufacturer or authorized distributors?

All TLV810SDBZT 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 TLV810SDBZT meets industry standards.

7.What is the process for return or replacement of TLV810SDBZT?

All TLV810SDBZT units undergo pre-shipment inspection (PSI). If there is an issue with TLV810SDBZT, 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 TLV810SDBZT part is unused and in its original packaging.

Return procedure for TLV810SDBZT:

1.Submit a request within 90 days.

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

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