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onsemi NCP300LSN09T1
- Part No.:
- NCP300LSN09T1
- Manufacturer:
- onsemi
- Category:
- Supervisors
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP300LSN09T1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,136
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Product details
Overview
NCP300LSN09T1 from onsemi is an ultra-low-quiescent-current (0.45 µA typical) voltage detector IC designed as a microprocessor reset controller with 0.9 V ±2% detection threshold, complementary output configuration, and operation over −40°C to +125°C. It delivers precise undervoltage monitoring for battery-powered portable systems requiring extended runtime and reliable power-on reset.
For engineers reviewing the NCP300LSN09T1 datasheet, pinout, applications, or equivalent options, this device serves as a precision 0.9 V reset supervisor in space-constrained, low-power embedded designs where supply stability, temperature resilience, and minimal current draw are critical selection criteria.
Technical Context
The NCP300LSN09T1 implements a high-accuracy comparator with built-in hysteresis (45 mV typical) to prevent oscillatory reset behavior during threshold crossing. Its complementary output stage integrates both P-channel source and N-channel sink drivers, enabling direct interface with logic inputs without external pull-up resistors.
It operates across a wide input voltage range (0.8 V to 10 V), supports active-low reset signaling ('L' suffix), and maintains detector accuracy over industrial and automotive ambient temperatures - except for sub-1.2 V thresholds, which are specified only at 25°C per datasheet Note 4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 0.900 V ±2% at 25°C; enables precise 0.9 V brownout detection for Li-ion or multi-cell battery systems |
| Quiescent Current | 0.45 µA typical at Vin = 2.9 V; extends battery life in always-on monitoring applications |
| Operating Voltage Range | 0.8 V to 10 V; supports direct connection to low-voltage rails (e.g., 1.2 V, 1.8 V, 3.3 V) and higher intermediate supplies |
| Output Type | Complementary (Pch source + Nch sink); eliminates need for external pull-up and drives CMOS/TTL loads directly |
| Hysteresis | 45 mV typical; ensures stable reset assertion/deassertion with ≥50 mV noise margin around threshold |
| Temperature Range | −40°C to +125°C (for 0.9 V option, full range applies per datasheet Table 1 footnote) |
| Propagation Delay | 97 ns (tpHL), 77 ns (tpLH); provides fast response to supply collapse for real-time system protection |
Pinout & Package
Package: TSOP-5 (SOT23-5), 5-pin thin small-outline package with 0.65 mm pitch; footprint compatible with standard SOT-23-5 layouts and optimized for PCB area efficiency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Reset Output | Complementary output: actively driven high (Pch) or low (Nch); no external pull-up required |
| 2 | Input (Vin) | Detection input; connects directly to monitored supply rail; internally biased comparator input |
| 3 | No Connect | Internally unconnected; must be left floating or tied to GND per design guidelines |
| 4 | GND | Ground reference for internal circuitry and output stage; requires low-impedance return path |
| 5 | No Connect | Internally unconnected; must be left floating or tied to GND per design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| 0.5 µA max quiescent current | Reduces standby power consumption by >90% vs. legacy reset ICs, critical for coin-cell or energy-harvesting systems |
| ±2% threshold accuracy at 25°C | Ensures deterministic reset timing without calibration; meets tight supply-margin requirements in modern SoCs |
| Complementary output architecture | Drives both logic-high and logic-low states actively, eliminating external components and improving noise immunity |
| −40°C to +125°C operation | Validated for under-hood automotive, industrial control, and outdoor IoT deployments without derating |
| Integrated hysteresis (2.0% of VDET) | Prevents chatter during slow-rising/falling supplies; eliminates need for external RC network |
Applications
| Portable Medical Monitor | Automotive Body Control Module |
|---|---|
Use Scenario: Continuous ECG logging powered by CR2032 coin cell with 2.0–3.0 V operating range. IC Role / Device Role / Timing Role: Monitors main supply and asserts active-low reset to MCU when voltage drops below 0.9 V, preventing corrupted memory writes. Use Value: 0.45 µA quiescent current extends battery life beyond 5 years; complementary output ensures clean reset edge without pull-up leakage. |
Use Scenario: Power management in door module with 12 V battery input regulated to 3.3 V, subject to load-dump transients. IC Role / Device Role / Timing Role: Detects 3.3 V rail collapse during transient events and triggers MCU reset within 100 ns. Use Value: 125°C rating and ±2% threshold ensure reliability in hot under-dash environments; hysteresis prevents false resets during ripple. |
| Industrial Sensor Node | Wearable Fitness Tracker |
Use Scenario: LoRaWAN node powered by single-cell LiPo (2.7–4.2 V), sleeping between transmissions. IC Role / Device Role / Timing Role: Supervises 1.8 V LDO output and holds MCU in reset until stable post-power-up. Use Value: Wide 0.8–10 V input range allows direct monitoring of raw battery or regulated rail; 97 ns tpHL guarantees fast fault response. |
Use Scenario: Heart-rate monitor using BLE SoC with tight 1.2 V core supply and 0.9 V brownout threshold. IC Role / Device Role / Timing Role: Provides precise 0.9 V reset signal synchronized to battery discharge curve. Use Value: TSOP-5 package fits <2 mm² PCB area; 0.9 V threshold matches LiPo end-of-discharge voltage for graceful shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS3801K33DBVR | Fixed 3.3 V threshold; 1.6 µA IQ; open-drain output; no complementary drive | Requires external pull-up; unsuitable for sub-1.2 V detection or low-IQ <1 µA designs | Select only if 3.3 V reset level and higher IQ are acceptable; not a functional substitute for 0.9 V operation |
| MAX6375XR29+T | 0.9 V threshold; 1.5 µA IQ; push-pull output; −40°C to +85°C rating | Limited temperature range excludes automotive/industrial use; higher IQ reduces battery life | Consider only for commercial-grade 0.9 V supervision where 125°C operation is unnecessary |
Compared with TPS3801K33DBVR and MAX6375XR29+T, the NCP300LSN09T1 uniquely combines 0.9 V detection, sub-1 µA quiescent current, complementary output, and full −40°C to +125°C operation - making it the sole option for high-reliability, ultra-low-power 0.9 V reset supervision in demanding environments.
Availability
NCP300LSN09T1 is available at Aetrix Electronics and suitable for portable medical monitors, automotive body control modules, industrial sensor nodes, wearable fitness trackers, and other applications requiring stable component supply with guaranteed long-term availability.
Supply support for NCP300LSN09T1 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
onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP300 series belongs to onsemi's precision voltage detector product line, engineered specifically for ultra-low-power reset supervision in battery-critical systems where accuracy, temperature resilience, and minimal standby current are mandatory.
FAQ
What is the exact detection threshold voltage of the NCP300LSN09T1?
The NCP300LSN09T1 has a nominal detection threshold of 0.900 V at 25°C, with guaranteed limits of 0.882 V (min) and 0.918 V (max) per datasheet Table 1. Over the full −40°C to +125°C range, the threshold varies within ±3% of nominal for this 0.9 V option, as confirmed in Note 4 of the Electrical Characteristics tables.
Does the NCP300LSN09T1 require an external pull-up resistor on its reset output?
No, the NCP300LSN09T1 does not require an external pull-up resistor because it features a complementary output stage with integrated P-channel source and N-channel sink drivers. This allows it to actively drive both logic-high and logic-low states directly, unlike open-drain alternatives such as the NCP301 series.
What is the maximum supply voltage the NCP300LSN09T1 can monitor?
The NCP300LSN09T1 supports an input voltage range of 0.8 V to 10 V on Pin 2 (Vin), as specified in the Maximum Ratings table. This allows it to monitor low-voltage rails (e.g., 0.9 V, 1.2 V) as well as higher intermediate supplies up to 10 V without external attenuation or level-shifting circuitry.
Is the NCP300LSN09T1 qualified for automotive applications?
The NCP300LSN09T1 itself is not automotive-qualified; however, its automotive-grade counterpart - the NCV300LSN09T1 - is AEC-Q100 qualified and PPAP capable. The 'NCP' prefix denotes commercial/industrial grade, while 'NCV' indicates automotive qualification with enhanced process controls and test coverage.
How does the hysteresis function in the NCP300LSN09T1, and what is its typical value?
The NCP300LSN09T1 incorporates built-in input hysteresis to prevent oscillatory reset behavior near the detection threshold. Its typical hysteresis value is 45 mV (0.045 V), defined as the difference between upper threshold (VDET+) and lower threshold (VDET−). This ensures robust operation in noisy or slowly varying supply conditions.
NCP300LSN09T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 0.9V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP300LSN09T1 FAQ
1.How can I place an order for NCP300LSN09T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP300LSN09T1 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 NCP300LSN09T1 reliable?
The price and inventory of NCP300LSN09T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP300LSN09T1 is usually 5 days.
3.What payment methods are accepted for NCP300LSN09T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP300LSN09T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP300LSN09T1?
NCP300LSN09T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP300LSN09T1 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 NCP300LSN09T1?
For technical support, including NCP300LSN09T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP300LSN09T1 requirements.
6.How does Aetrix verify that NCP300LSN09T1 is sourced from the original manufacturer or authorized distributors?
All NCP300LSN09T1 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 NCP300LSN09T1 meets industry standards.
7.What is the process for return or replacement of NCP300LSN09T1?
All NCP300LSN09T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP300LSN09T1, 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 NCP300LSN09T1 part is unused and in its original packaging.
Return procedure for NCP300LSN09T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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