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Texas Instruments TLV810ZDBZT
- Part No.:
- TLV810ZDBZT
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
TLV810ZDBZT.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,498
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Product details
Overview
TLV810ZDBZT from Texas Instruments is a 3-pin voltage supervisor IC with active-high push-pull RESET output, precision 2.25 V threshold voltage (±2.2% over temperature), 200 ms fixed reset delay, and 9 µA typical supply current. It monitors VDD ≥1.1 V for valid operation and asserts RESET during power-up, brownout, or undervoltage events in microcontroller-based systems.
For engineers reviewing the TLV810ZDBZT datasheet, TLV810ZDBZT pinout, TLV810ZDBZT application, or TLV810ZDBZT equivalent, this device serves as a low-power, high-accuracy reset supervisor for battery-powered embedded control, automotive ECUs, and industrial DSPs where reliable power sequencing and transient immunity are critical.
Technical Context
The TLV810ZDBZT implements an internal 1.137 V reference with resistor-divider sensing to generate a precise 2.25 V negative-going input threshold (VIT–) with 30 mV hysteresis. Its reset logic includes a built-in oscillator-driven timer that initiates a 200 ms delay after VDD crosses VIT–, ensuring stable system initialization.
No external components are required: the device operates from 1.1 V to 6 V supply, delivers push-pull RESET output capable of sourcing –4 mA and sinking 4 mA, and maintains functional validity across –40°C to +125°C ambient temperature without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Threshold Voltage | 2.25 V (VIT–), ±2.2% over –40°C to +125°C - ensures accurate 2.25 V supply monitoring with minimal drift |
| Reset Delay Time | 200 ms (typical), 120–280 ms range - guarantees sufficient processor hold time for full firmware initialization |
| Supply Current | 9 µA (typical at 2 V), ≤30 µA (max at 6 V) - enables multi-year operation in coin-cell or energy-harvesting applications |
| Output Type | Active-high push-pull - eliminates need for external pull-up resistor and supports direct interface to CMOS reset inputs |
| Operating Voltage Range | 1.1 V to 6 V - supports valid reset assertion down to ultra-low VDD (e.g., Li-ion discharge tail) and compatibility with 5 V legacy rails |
| Hysteresis | 30 mV - prevents chatter during slow-rising or noisy supply transitions near threshold |
| Temperature Range | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and harsh-environment edge nodes |
Pinout & Package
SOT-23-3 (DBZ) package: 1.12 mm max height, 2.80 × 1.40 mm footprint, gull-wing leads, RoHS-compliant NIPDAUAG finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Supply Input | Primary power rail connection; device asserts RESET when VDD falls below 2.25 V or rises above it with 200 ms delay |
| 2 (GND) | Ground Reference | Return path for internal reference and output driver; requires low-impedance connection to minimize noise coupling |
| 3 (RESET) | Active-High Push-Pull Output | Drives high during fault (VDD < VIT–); sinks 4 mA / sources –4 mA; no external pull-up needed |
Key Features
| Feature | Design Value |
|---|---|
| Precision 2.25 V threshold | Guaranteed 2.20–2.30 V over full temperature range - eliminates manual calibration in 2.2 V–2.3 V rail supervision |
| Fixed 200 ms reset delay | Internally timed, no capacitor required - reduces BOM count and PCB area vs RC-based solutions |
| 9 µA typical quiescent current | Enables >10-year battery life in always-on IoT sensors powered by CR2032 cells |
| Push-pull RESET output | Directly drives standard CMOS reset pins without pull-up resistors - simplifies layout and improves noise immunity |
| –40°C to +125°C operation | Validated for automotive engine control modules and industrial PLC I/O cards without thermal derating |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Programmable Logic Controller (PLC) |
|---|---|
Use Scenario: Monitors 3.3 V microcontroller supply in under-hood ECU exposed to thermal cycling and load-dump transients. IC Role / Device Role / Timing Role: Voltage supervisor providing power-on reset and brownout detection with 200 ms hold time for firmware boot sequence. Use Value: Prevents erratic MCU behavior during cold cranking (VDD dip to 2.1 V) and ensures deterministic restart after battery recovery. |
Use Scenario: Supervises FPGA configuration voltage in modular PLC backplane with shared 2.5 V rail. IC Role / Device Role / Timing Role: Reset generator asserting active-high signal to FPGA PROG_B pin during power ramp and undervoltage events. Use Value: Eliminates configuration corruption by guaranteeing FPGA remains held in reset until 2.5 V rail stabilizes within ±2.5%. |
| Portable Medical Sensor Node | Smart Energy Meter MCU Subsystem |
Use Scenario: Powers ultra-low-power ARM Cortex-M0+ in wearable glucose monitor using single 3 V lithium coin cell. IC Role / Device Role / Timing Role: Low-current supervisor enabling >5-year shelf life while ensuring reliable wake-from-reset on power application. Use Value: 9 µA supply current extends battery life beyond 60 months; 2.25 V threshold matches LDO dropout margin before sensor shutdown. |
Use Scenario: Resets metrology SoC during AC mains interruption and surge-induced 5 V rail collapse in DIN-rail meter. IC Role / Device Role / Timing Role: High-immunity supervisor detecting fast transients (≥1.2 µs duration) on 5 V supply via built-in VDD rejection circuitry. Use Value: Prevents false meter readings by holding SoC in reset during 100 ms grid sag events without requiring external filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX810LUR23+T | 2.32 V threshold, 140 ms delay, 12 µA IQ, same SOT-23-3 pinout | Higher threshold tolerance (±2.5%) and shorter delay reduce margin for slow-rising 2.2 V rails | Select when legacy MAX810 pin compatibility is mandatory and 2.32 V threshold aligns with system rail spec |
| TPS3808G12DBVR | 1.2 V adjustable threshold (via external resistor), 200 ms delay, 1.1 µA IQ, SOT-23-6 package | Requires external resistor network and occupies larger footprint; ultra-low IQ suits energy harvesting | Choose for programmable threshold flexibility and sub-µA sleep current - not drop-in replacement due to pin count and package |
Compared with TLV810ZDBZT, MAX810LUR23+T offers identical pinout but less precise 2.32 V threshold and higher quiescent current, while TPS3808G12DBVR provides adjustable sensing and nanoamp IQ at the cost of added components and non-pin-compatible packaging.
Availability
TLV810ZDBZT is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, portable medical sensors, and smart energy meters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV810ZDBZT 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 leader specializing in analog, embedded processing, and power management technologies, with decades of automotive and industrial qualification expertise.
The TLV810 family was designed specifically for high-reliability power-supply monitoring in space-constrained, low-power embedded systems - emphasizing precision threshold accuracy, zero-component operation, and extended temperature resilience.
FAQ
What is the exact threshold voltage of TLV810ZDBZT and how stable is it over temperature?
The TLV810ZDBZT has a nominal negative-going input threshold voltage (VIT–) of 2.25 V, specified from 2.20 V to 2.30 V over –40°C to +125°C. Measured data shows normalized VIT– variation of ±0.5% across this range, confirming tight thermal stability suitable for automotive and industrial applications where rail tolerances are tight.
Does TLV810ZDBZT require an external capacitor for reset timing?
No, TLV810ZDBZT does not require an external capacitor. Its 200 ms reset delay is generated by an internal oscillator-based timer circuit. This eliminates timing component variability, PCB area, and reliability risks associated with external capacitors - a key differentiator from RC-based supervisors.
Can TLV810ZDBZT drive a microcontroller's bidirectional reset pin directly?
TLV810ZDBZT can drive most bidirectional reset pins, but TI recommends adding a 47 Ω series resistor between its RESET output and the MCU pin to limit current if both devices attempt to drive the line simultaneously. This protects against latch-up and ensures safe level translation in mixed-voltage systems.
What is the minimum valid VDD for TLV810ZDBZT to assert a defined RESET state?
TLV810ZDBZT output becomes valid when VDD exceeds 1.1 V. Below 1.1 V, the RESET output is undefined. This allows early assertion during power-up sequences where VDD ramps from 0 V, and ensures robust operation even with deeply discharged batteries or low-dropout regulator tails.
How does TLV810ZDBZT handle fast voltage transients on the VDD pin?
TLV810ZDBZT incorporates built-in transient rejection: it ignores fast, low-amplitude dips (e.g., <1.2 µs duration below VIT–) and long, shallow sags. Figure 13-5 in the datasheet defines the minimum pulse duration vs. overdrive curve - only transients exceeding this boundary trigger a reset, preventing spurious resets in noisy environments.
TLV810ZDBZT 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:
- 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 High
- Reset Timeout:
- 120ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
TLV810ZDBZT FAQ
1.How can I place an order for TLV810ZDBZT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV810ZDBZT 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 TLV810ZDBZT reliable?
The price and inventory of TLV810ZDBZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV810ZDBZT is usually 5 days.
3.What payment methods are accepted for TLV810ZDBZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV810ZDBZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV810ZDBZT?
TLV810ZDBZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV810ZDBZT 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 TLV810ZDBZT?
For technical support, including TLV810ZDBZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV810ZDBZT requirements.
6.How does Aetrix verify that TLV810ZDBZT is sourced from the original manufacturer or authorized distributors?
All TLV810ZDBZT 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 TLV810ZDBZT meets industry standards.
7.What is the process for return or replacement of TLV810ZDBZT?
All TLV810ZDBZT units undergo pre-shipment inspection (PSI). If there is an issue with TLV810ZDBZT, 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 TLV810ZDBZT part is unused and in its original packaging.
Return procedure for TLV810ZDBZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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