PTLV809EA46DBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
PTLV809EA46DBZR is a low-power 3-pin voltage supervisor with a fixed 4.63 V threshold, active-low push-pull reset output, and ultra-low quiescent current. Housed in a SOT-23-3 package, available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV809EA46DBZR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV809EA46DBZR?
- Fixed 4.63 V threshold voltage supervisor with active-low push-pull reset output, eliminating external resistor dividers and simplifying PCB layout
- Ultra-low quiescent current consumption in the µA range, extending battery life in always-on monitoring circuits and IoT edge nodes
- Tiny 3-pin SOT-23 package (TO-236 footprint) for minimal board area in space-constrained portable and wearable applications
What is PTLV809EA46DBZR used for?
The PTLV809EA46DBZR is used as a microcontroller reset supervisor in industrial controllers, smart meters, and embedded systems powered from a 5 V rail, ensuring the processor remains in reset until the supply stabilizes above 4.63 V. Its push-pull active-low output directly drives MCU RESET pins without external pull resistors, reducing BOM by 2 components per node. The SOT-23-3 footprint makes it a drop-in solution for power-on reset in compact IoT modules where board space is at a premium.
What are the specifications of PTLV809EA46DBZR?
| Date Of Intro | 2019-06-14 |
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| 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 |
| Supply Current-Max (Isup) | 0.0012mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.63V |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTLV809EA46DBZR datasheet?
PTLV809EA46DBZR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV809EA46DBZR?
Compatible alternatives and drop-in replacements for PTLV809EA46DBZR:
Frequently Asked Questions
At what supply threshold does PTLV809EA46DBZR assert its reset output, and how precise is that threshold?
PTLV809EA46DBZR asserts its active-low reset when the monitored supply drops below 4.63 V. Texas Instruments specifies a tight threshold tolerance of ±2%, so the actual trip point falls between approximately 4.54 V and 4.72 V across the full -40 °C to +125 °C temperature range, providing reliable brownout detection for 5 V microcontroller systems without external trimming.
How does the active-low push-pull output of PTLV809EA46DBZR simplify PCB design compared to an open-drain reset supervisor?
A push-pull output drives the RESET line both high and low internally, eliminating the need for an external 10 kΩ pull-up resistor that open-drain variants require. This saves one passive component per board node, reduces leakage paths that could slow reset release, and guarantees a fast rising edge well within a 200 µs reset timeout required by most ARM Cortex-M MCUs.
In what operating temperature range can PTLV809EA46DBZR be used for automotive or industrial designs?
PTLV809EA46DBZR is rated for operation from -40 °C to +125 °C, covering both the industrial (-40 °C to +85 °C) and extended automotive temperature grades. This makes it suitable for under-hood automotive ECU reset circuits and factory-floor PLCs where ambient temperatures can exceed 85 °C, provided the supply voltage meets the 4.63 V trip point requirement.
When should a designer choose PTLV809EA46DBZR over a TLV809 standard variant for a cost-sensitive design?
PTLV809EA46DBZR is the automotive-qualified 'P' grade of the TLV809, processed to AEC-Q100 standards with tighter parametric limits, making it mandatory when the end product must pass ISO 26262 or IEC 61508 safety audits. For a non-automotive IoT sensor running on a 5 V rail that only needs the 4.63 V threshold and -40 °C to +85 °C range, the standard TLV809 reduces unit cost while sharing the same SOT-23-3 footprint.
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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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