TLV809K33DBVRIn StockTexas Instruments
TLV809K33DBVR is a single-channel, 3.3V threshold voltage supervisor IC with active-low push-pull reset output in a compact SOT-23 package. It monitors supply voltage and asserts reset when VCC drops below 3.3V, making it ideal for microcontroller and processor reset circuits. From $0.09 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TLV809K33DBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0934(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.3V fixed threshold voltage supervisor with tight ±1.5% accuracy for precise power-on reset detection
- Active-low push-pull reset output eliminates need for external pull-up resistor, simplifying circuit design
- Ultra-compact SOT-23-3 (3-pin) package with only 26μA typical supply current for space-constrained applications
- Wide operating voltage range of 1V to 5.5V with operating temperature from -40°C to +125°C
Applications
The TLV809K33DBVR is widely used in microcontroller and DSP reset circuits to ensure reliable system initialization after power-up or brownout events. It is suitable for embedded systems, IoT devices, industrial controllers, and consumer electronics where stable 3.3V power supply monitoring is critical. Its tiny SOT-23 footprint makes it an ideal choice for portable and battery-powered designs requiring minimal board space.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TO-236 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.025mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLV809K33DBVR:
Frequently Asked Questions
What is the reset threshold voltage of the TLV809K33DBVR?
The TLV809K33DBVR has a fixed reset threshold voltage of 3.3V with a typical accuracy of ±1.5%. It asserts the active-low reset output (RESET pin goes low) when VCC falls below this 3.3V threshold, and releases reset after VCC rises above the threshold plus a built-in hysteresis.
What type of reset output does the TLV809K33DBVR provide?
The TLV809K33DBVR provides an active-low push-pull reset output. Unlike open-drain outputs that require an external pull-up resistor, the push-pull configuration actively drives the reset line both high and low, reducing component count and improving noise immunity in the reset circuit.
What are the typical applications for the TLV809K33DBVR?
This voltage supervisor is commonly used in microcontroller reset circuits, DSP power management, FPGA initialization, and embedded system power sequencing. It is ideal for 3.3V supply rails in IoT devices, industrial control systems, automotive electronics, and any application requiring reliable brownout detection and power-on reset functionality.
What package does the TLV809K33DBVR come in and what are its dimensions?
The TLV809K33DBVR is available in a 3-pin SOT-23 (DBV) package, one of the smallest surface-mount packages available. This tiny package measures approximately 2.9mm x 1.6mm, making it well-suited for space-constrained PCB designs in portable and wearable electronics.
Can the TLV809K33DBVR be used as a drop-in replacement for other voltage supervisors?
The TLV809K33DBVR is pin-compatible with many standard 3-pin SOT-23 voltage supervisor ICs such as the MAX809, MCP809, and similar devices with matching 3.3V thresholds and active-low push-pull outputs. Always verify the threshold voltage, output type, and reset timeout period when selecting a replacement to ensure proper system behavior.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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