TLV840CADL28DBVR Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
TLV840CADL28DBVR is a low-voltage supervisor IC with programmable reset time delay in a compact 5-pin SOT-23 package, operating from -40°C to +125°C. It monitors a single supply rail and asserts a reset output when supply voltage falls below the threshold, with a user-adjustable delay set by an external capacitor. RoHS-compliant (e4), in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TLV840CADL28DBVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2370(MOQ 1)
- 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 via external capacitor eliminates fixed-delay limitations and allows exact hold-off tuning for each supply rail in the system
- 5-pin SOT-23 package (JESD-30 R-PDSO-G5) occupies minimal board area, fitting densely populated IoT and wearable PCBs
- Wide operating temperature range of -40°C to +125°C ensures reliable supervisory operation in automotive, industrial, and outdoor equipment
- Single-channel voltage supervisor with fixed threshold simplifies BOM and reduces per-unit cost versus adjustable-threshold alternatives for known-voltage rails
Applications
TLV840CADL28DBVR is used in microcontroller and processor reset circuits for IoT nodes, industrial controllers, and automotive electronics, where reliable power-on reset and brown-out detection are critical to preventing corrupted firmware execution. The adjustable reset delay allows designers to hold the microcontroller in reset long enough for switching regulators to stabilize before releasing the processor, avoiding false starts during power-up. Its -40°C to +125°C range and small SOT-23 footprint also make it well-suited for under-hood automotive ECU supervisory circuits and outdoor sensor modules.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-09-27 |
| 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 | +2.8V |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How is the reset time delay adjusted on TLV840CADL28DBVR and what range can it cover?
TLV840CADL28DBVR sets its reset delay by connecting an external capacitor to the delay pin. A larger capacitor value extends the delay, allowing customization from a few milliseconds to several hundred milliseconds depending on the capacitor chosen and the internal charge current. This programmable delay lets designers match the supervisory hold-off to the regulator settling time without selecting from a fixed family of parts, reducing the number of BOM variants needed.
What operating temperature range does TLV840CADL28DBVR support for automotive and industrial designs?
TLV840CADL28DBVR is specified over a temperature range of -40°C to +125°C, meeting AEC-Q100 style thermal requirements for automotive Grade 1 and industrial-grade applications. This wide range covers engine-bay electronics, outdoor telemetry units, and factory automation controllers that must operate reliably through cold startup at -40°C and sustained high-temperature conditions near heat sources at 125°C.
Why is TLV840CADL28DBVR in a 5-pin SOT-23 package preferred over an 8-pin SOIC supervisor for space-constrained IoT boards?
The 5-pin SOT-23 footprint of TLV840CADL28DBVR measures approximately 1.6 mm x 2.9 mm, roughly 4 times smaller than a standard 8-pin SOIC outline. For single-channel supervision where the only extra component is one delay capacitor, the SOT-23 eliminates unused pins and reduces the courtyard area reserved for the supervisor. This matters in IoT modules and wearables where PCB area is measured in square millimeters and every unused package pin wastes routing space.
How does TLV840CADL28DBVR prevent processor lock-up during a slow power supply droop in an industrial controller?
TLV840CADL28DBVR continuously monitors the supply rail and asserts a low reset signal as soon as the voltage falls below its factory-set threshold, holding the microcontroller in a known reset state. The configurable reset delay, set by an external capacitor, keeps the reset line asserted for up to several hundred milliseconds after voltage recovers, ensuring the 3.3 V or 5 V rail is fully stable before firmware execution resumes. This prevents undefined processor behavior from partial-power brownout events during industrial motor switching transients.
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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 |
|---|---|---|
| 1+ | $1.8750 | $1.88 |
| 11+ | $1.2500 | $13.75 |
| 250+ | $0.2758 | $68.95 |
| 500+ | $0.2630 | $131.50 |
| 1000+ | $0.2525 | $252.48 |
| 3000+ | $0.2370 | $711.00 |
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