TLV840NADL46DBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
TLV840NADL46DBVR is a low-voltage supervisor IC from Texas Instruments featuring a programmable reset time delay and open-drain active-low reset output. It monitors a 4.6 V threshold, operates across -40 to +125 degrees C, and ships in a compact 5-pin SOT-23 package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TLV840NADL46DBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2688(MOQ 250)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Programmable reset time delay allows the system processor up to hundreds of milliseconds to complete power-on initialization before reset releases
- 4.6 V fixed undervoltage threshold with open-drain active-low reset output compatible with 3.3 V and 5 V microcontroller reset inputs
- Extended -40 to +125 degrees C operating range in a 5-pin SOT-23 package suits industrial and automotive supervisory applications
Applications
The TLV840NADL46DBVR is used as a power supply supervisor in microcontroller-based systems where a clean reset during brownout or power-on conditions is critical. Its programmable reset delay ensures that the processor and external peripherals have sufficient power-rail settling time of 100 ms or more before the reset signal is released, preventing false starts in industrial controllers and automotive modules. The compact 5-pin SOT-23 form factor makes it easy to add supervisory protection to space-constrained PCBs in consumer electronics, smart meters, and embedded computing boards.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | BAT BUP SW:N;MNL RST:N;OV DET:N;PW FL IP:N;PW FL IO:N;PW FL OP:N;PRG RST DLY:Y;UV DET:N;WD:N;WWD:N |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 0.0012mA |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 0.7V |
| Supply Voltage-Nom (Vsup) | 1.5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.6V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-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 | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLV840NADL46DBVR:
suggested
suggested
suggested
Frequently Asked Questions
What reset threshold voltage does the TLV840NADL46DBVR monitor and how is it factory configured?
The TLV840NADL46DBVR monitors a fixed 4.6 V undervoltage threshold set at the factory. When the monitored supply drops below 4.6 V, the device asserts its active-low open-drain reset output to hold the system in reset. Because the threshold is fixed, no external resistor divider is needed, simplifying the design and reducing component count on the power supervisor circuit.
How does the programmable reset time delay benefit a microcontroller system during power-up?
The TLV840NADL46DBVR provides a programmable reset time delay, typically set by an external capacitor on the CT pin, that keeps the reset output asserted for a defined period after the supply crosses the 4.6 V threshold. This delay of 100 ms to several hundred milliseconds gives the microcontroller oscillator and Flash memory time to stabilize before code execution begins, preventing undefined boot behavior in industrial and automotive control systems.
Can the TLV840NADL46DBVR operate in automotive accessory modules given its temperature rating?
Yes, the TLV840NADL46DBVR is rated for operation from -40 to +125 degrees C, covering the full automotive extended temperature range. This makes it suitable for in-vehicle accessory modules, body control units, and ADAS sensor boards where ambient temperatures can exceed +85 degrees C near the engine bay. The 5-pin SOT-23 package also meets typical automotive PCB space constraints.
What output structure does the TLV840NADL46DBVR reset pin use and why does it matter for multi-rail systems?
The TLV840NADL46DBVR has an open-drain active-low reset output, which can be wire-OR combined with other reset sources such as a watchdog timer on a shared reset net. The open-drain topology allows interfacing with microcontrollers running at 3.3 V or 5 V reset input levels by selecting an appropriate pull-up resistor, providing flexibility across different processor families without logic-level translation in a compact 5-pin package.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.3256 | $81.39 |
| 500+ | $0.3109 | $155.44 |
| 1000+ | $0.2988 | $298.78 |
| 3000+ | $0.2830 | $849.00 |
| 6000+ | $0.2760 | $1656.00 |
| 15000+ | $0.2688 | $4031.85 |
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