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Texas Instruments TLV809EA26DPWR
- Part No.:
- TLV809EA26DPWR
- Manufacturer:
- Texas Instruments
- Category:
- Supervisors
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TLV809EA26DPWR.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 5X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,049
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Product details
Overview
TLV809EA26DPWR from Texas Instruments is a push-pull, active-low voltage supervisor IC designed for reliable power-on reset and brownout detection in low-power systems. It features a 2.64 V ±0.5% threshold voltage, 200 ms fixed reset delay, 250 nA typical supply current, and operates across –40°C to +125°C. It is used in battery-powered microcontroller systems to ensure deterministic startup and fault recovery.
For engineers reviewing the TLV809EA26DPWR datasheet, TLV809EA26DPWR pinout, TLV809EA26DPWR application, or TLV809EA26DPWR equivalent, key selection criteria include guaranteed reset assertion down to 0.7 V VDD, glitch immunity against transients ≥10 µs, compatibility with 3.3 V/5 V rails, and X2SON-5 (DPW) package suitability for space-constrained PCB layouts.
Technical Context
The TLV809EA26DPWR integrates a precision bandgap reference, comparator with hysteresis (±0.9–1.5%), and a monostable timer to generate a fixed 200 ms reset pulse after VDD rises above the 2.64 V falling threshold (VIT–). Its push-pull output drives low without external pull-up, enabling direct interface with MCU reset inputs.
It implements built-in glitch immunity: transient dips on VDD shorter than 10 µs (at ≥5% overdrive) are ignored, preventing spurious resets. The device maintains defined logic state down to VPOR = 700 mV, ensuring predictable behavior during slow power ramps or brownouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 2.64 V ±0.5% (typical) - ensures accurate brownout detection at nominal 3.3 V rail; hysteresis prevents chatter near threshold |
| Reset Delay | 200 ms (variant A) - provides sufficient time for power stabilization and clock lock before releasing MCU reset |
| Supply Current | 250 nA (typical), ≤1 µA @ 3.3 V - enables multi-year operation in coin-cell–powered IoT sensors |
| Operating Voltage | 0.7 V to 6 V - guarantees functional reset assertion even during deep brownout or ultra-low-VDD startup |
| Output Type | Push-pull, active-low - eliminates need for external pull-up resistor; sinks up to 2 mA at 1.7 V |
| Temperature Range | –40°C to +125°C - supports industrial, automotive under-hood, and energy metering applications |
| Glitch Immunity | 10 µs minimum pulse rejection - suppresses EMI-induced supply noise without external RC filtering |
Pinout & Package
X2SON-5 (DPW) package: 0.8 mm × 0.8 mm, 0.35 mm height, thermal pad (Pin 3) recommended to be connected to GND for improved thermal performance and EMI reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 5) | Power input | Monitored supply rail; powers internal reference, comparator, and timer; must be bypassed with 0.1–1 µF capacitor |
| GND (Pin 4) | Ground reference | Primary return path for internal circuitry; connects to system ground plane; ties to thermal pad (Pin 3) for optimal thermal dissipation |
| RESET (Pin 1) | Active-low reset output | Push-pull driver asserts low during VDD < 2.64 V; holds low for 200 ms after VDD > VIT+; directly interfaces MCU /RST pin |
| MR (Pin 2) | Manual reset input | Active-low asynchronous trigger; pulling low forces RESET assertion regardless of VDD level; release initiates 200 ms timeout |
| PAD (Pin 3) | Thermal pad | No electrical connection; improves thermal resistance (RθJB = 320.4°C/W); soldering to GND enhances reliability in high-temp environments |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 250 nA typical - extends battery life in always-on monitoring nodes without compromising supervision integrity |
| Factory-trimmed threshold accuracy | ±0.5% typical over –40°C to +125°C - eliminates need for external calibration in precision power-rail monitoring |
| Guaranteed operation down to 0.7 V | VPOR = 700 mV - ensures valid reset state during cold-start or capacitor discharge scenarios where VDD ramps slowly |
| Integrated glitch filter | 10 µs immunity at ≥5% overdrive - removes requirement for discrete RC filters on VDD, saving board area and BOM cost |
| Small-footprint X2SON-5 package | 0.8 mm × 0.8 mm - enables placement adjacent to MCUs in wearables, sensor nodes, and compact industrial controllers |
Applications
| Smart Electricity Meter | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Monitors 3.3 V microcontroller supply in revenue-grade metering ICs subjected to grid voltage sags and EMI. IC Role / Device Role / Timing Role: Voltage supervisor asserting /RST during brownout; 200 ms delay ensures stable crystal oscillator lock before firmware execution. Use Value: Prevents corrupted flash writes or register misconfiguration during undervoltage events, meeting IEC 62053-21 accuracy requirements. |
Use Scenario: Supervises isolated 5 V DC-DC output powering analog input signal conditioning circuits in factory automation cabinets. IC Role / Device Role / Timing Role: Resets ADC and isolation interface upon supply dip; MR pin allows remote diagnostics-triggered reset via PLC backplane. Use Value: Eliminates need for discrete RC reset networks while maintaining immunity to 10 µs transients from motor drive switching noise. |
| Portable Medical Sensor | Set-Top Box Power Sequencing |
|
Use Scenario: Ensures safe boot of BLE-enabled glucose monitor powered by CR2032 coin cell with aging voltage profile. IC Role / Device Role / Timing Role: Detects VDD drop below 2.64 V during battery depletion; 250 nA IQ preserves shelf life beyond 5 years. Use Value: Guarantees controlled shutdown before data loss, satisfying ISO 13485 traceability and FDA software validation requirements. |
Use Scenario: Coordinates power-up sequence between SoC, DDR memory, and HDMI PHY in consumer entertainment devices. IC Role / Device Role / Timing Role: Generates synchronized reset pulse after main 12 V → 3.3 V converter stabilizes; push-pull output drives multiple loads without fanout limitation. Use Value: Replaces legacy 3-pin SOT-23 supervisors with same timing but 75% smaller footprint, freeing routing space near dense BGA packages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage supervisor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV809MA26DBVR | SOT-23-3 (DBZ) package; pin 1 = GND; identical 2.64 V threshold and 200 ms delay; 1 µA max IQ vs. 250 nA typ | Larger footprint (2.9 × 1.3 mm); less suitable for ultra-dense layouts; no MR pin or thermal pad | Select when board space permits and manual reset functionality is unnecessary |
| TPS3809K26DBVR | SOT-23-3; 2.63 V threshold; 200 ms delay; 1.1 µA max IQ; no MR pin; lower accuracy (±1.5%) | Higher temperature drift; lacks glitch immunity spec; not qualified for 125°C operation | Choose only for cost-sensitive, non-critical commercial applications with ambient temperature < 85°C |
Compared with TLV809EA26DPWR, TLV809MA26DBVR offers identical supervision function in a larger, simpler package without MR capability, while TPS3809K26DBVR trades accuracy, temperature range, and robustness for lower unit cost in benign environments.
Availability
TLV809EA26DPWR is available at Aetrix Electronics and suitable for smart electricity meters, industrial PLC I/O modules, and portable medical sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV809EA26DPWR 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, efficiency, and design enablement.
The TLV809E series belongs to TI's precision low-power supervisor product line, engineered specifically for battery-operated, space-constrained, and high-reliability applications demanding guaranteed reset behavior across extreme temperatures and noisy supply conditions.
FAQ
What is the exact reset threshold voltage of TLV809EA26DPWR?
The TLV809EA26DPWR has a factory-programmed falling threshold voltage (VIT–) of 2.64 V with ±0.5% typical accuracy over –40°C to +125°C. This value is laser-trimmed during production and specified in the Electrical Characteristics table of the official datasheet (SLVSES2J, Section 7.5).
Does TLV809EA26DPWR require an external pull-up resistor on the RESET pin?
No, TLV809EA26DPWR uses a push-pull output topology, so it actively drives both high and low states on the RESET pin. Unlike open-drain variants (e.g., TLV803E), no external pull-up resistor is needed - simplifying layout and reducing BOM count.
What is the purpose of the MR pin on TLV809EA26DPWR?
The MR (Manual Reset) pin on TLV809EA26DPWR is an active-low input that forces the RESET output low regardless of VDD level. When pulled low, it initiates a full 200 ms reset timeout; releasing it allows automatic deassertion after the delay expires - useful for system-level diagnostics or user-initiated restarts.
Can TLV809EA26DPWR operate reliably at VDD = 0.9 V?
Yes - TLV809EA26DPWR guarantees defined output logic state down to VPOR = 700 mV. At 0.9 V, the device remains fully functional: it monitors VDD, asserts RESET if below 2.64 V, and maintains correct timing. This enables robust operation during slow power ramps or battery fade.
Is the thermal pad (Pin 3) on TLV809EA26DPWR electrically connected?
No, the thermal pad (Pin 3) on TLV809EA26DPWR is a non-electrical mechanical feature. It is recommended to solder it to a GND-filled copper pour to improve thermal dissipation (RθJB = 320.4°C/W) and reduce junction temperature - critical for sustained operation at +125°C ambient.
TLV809EA26DPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XFDFN Exposed Pad
- 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:
- 130ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-X2SON (0.8x0.8)
TLV809EA26DPWR FAQ
1.How can I place an order for TLV809EA26DPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV809EA26DPWR 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 TLV809EA26DPWR reliable?
The price and inventory of TLV809EA26DPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV809EA26DPWR is usually 5 days.
3.What payment methods are accepted for TLV809EA26DPWR?
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4.How is shipping managed for TLV809EA26DPWR?
TLV809EA26DPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV809EA26DPWR 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 TLV809EA26DPWR?
For technical support, including TLV809EA26DPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV809EA26DPWR requirements.
6.How does Aetrix verify that TLV809EA26DPWR is sourced from the original manufacturer or authorized distributors?
All TLV809EA26DPWR 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 TLV809EA26DPWR meets industry standards.
7.What is the process for return or replacement of TLV809EA26DPWR?
All TLV809EA26DPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV809EA26DPWR, 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 TLV809EA26DPWR part is unused and in its original packaging.
Return procedure for TLV809EA26DPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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