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onsemi NCP300HSN30T1
- Part No.:
- NCP300HSN30T1
- Manufacturer:
- onsemi
- Category:
- Supervisors
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP300HSN30T1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,591
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Product details
Overview
NCP300HSN30T1 from onsemi is a complementary-output voltage detector IC designed for microprocessor reset control in battery-powered systems. It features a 3.0 V ±3% undervoltage detection threshold, 0.15 V typical hysteresis, 0.5 µA typical quiescent current, and operates from 0.8 V to 10 V supply. It delivers active-high reset output in a TSOP-5 package for portable electronics power monitoring.
For engineers reviewing the NCP300HSN30T1 datasheet, pinout, applications, or equivalent options, this device is selected for ultra-low-power reset supervision where precise 3.0 V threshold accuracy, wide temperature operation (−40°C to +125°C), and complementary drive capability are required in space-constrained designs.
Technical Context
The NCP300HSN30T1 implements a precision bandgap-based comparator with built-in hysteresis to prevent oscillation near the 3.0 V detection threshold. Its complementary output stage integrates both P-channel source and N-channel sink drivers, enabling direct interface to logic inputs without external pull-up resistors.
It operates across an extended input voltage range (0.8–10 V) while maintaining sub-µA quiescent current at low VIN, supporting brown-out detection in systems powered by single-cell Li-ion, multi-cell alkaline, or regulated 3.3 V/5 V rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detection Threshold | 3.0 V ±3% over −40°C to +125°C - ensures reliable reset assertion before microprocessor supply violates minimum operating voltage |
| Hysteresis | 0.15 V typical - prevents chatter during slow-rising/falling supply transitions |
| Quiescent Current | 0.5 µA typical at VIN = 2.87 V - extends battery life in always-on monitoring applications |
| Supply Range | 0.8 V to 10 V - supports direct connection to unregulated battery sources or post-LDO rails |
| Output Drive | Complementary (Pch source + Nch sink) - eliminates need for external pull-up, reduces BOM count |
| Propagation Delay | 49 ns (tpHL), 115 ns (tpLH) - enables fast system response to supply faults |
| Operating Temp | −40°C to +125°C - qualified for automotive under-hood and industrial environments |
Pinout & Package
Package: TSOP-5 (SOT23-5), 1.6 mm × 2.9 mm × 1.1 mm, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Reset Output | Active-high complementary output: drives high via internal P-ch FET or low via internal N-ch FET |
| 2 | Input (VIN) | Detects supply voltage; threshold referenced internally to 3.0 V |
| 3 | No Connect | Internally unused; must be left floating or tied to GND per layout guidelines |
| 4 | No Connect | Internally unused; must be left floating or tied to GND per layout guidelines |
| 5 | GND | Analog and digital ground reference for detector and output stage |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.5 µA typical enables >10-year battery life in coin-cell–powered IoT sensors |
| High threshold accuracy | ±3% over full temperature range ensures deterministic reset timing across environmental extremes |
| Complementary output architecture | Eliminates external pull-up resistor, reducing PCB area and component cost in reset circuitry |
| Wide supply voltage range | 0.8–10 V operation supports direct monitoring of primary batteries and intermediate rail voltages |
| Automotive qualification | AEC-Q100 Grade 1 compliance enables use in engine control, ADAS, and body electronics |
Applications
| Microprocessor Reset Control | Low-Battery Detection |
|---|---|
Use Scenario: Supervises 3.3 V supply rail of an ARM Cortex-M4 MCU in a handheld medical device. IC Role / Device Role: Generates clean, glitch-free active-high reset pulse when supply drops below 3.0 V. Use Value: Prevents firmware corruption during brown-out by holding CPU in reset until stable 3.3 V is restored. | Use Scenario: Monitors single-cell Li-ion battery voltage in a Bluetooth tracker. IC Role / Device Role: Asserts active-high signal to MCU GPIO when cell voltage falls to 3.0 V. Use Value: Triggers graceful shutdown before deep discharge, preserving battery cycle life and safety. |
| Power-Fail Indicator | Battery Backup Switchover |
Use Scenario: Detects AC/DC adapter failure in a smart home gateway with dual power inputs. IC Role / Device Role: Drives LED driver or status pin with active-high output upon main rail collapse. Use Value: Provides immediate visual alert and initiates backup power handover within 115 ns. | Use Scenario: Controls switchover between main 3.3 V rail and supercapacitor backup in a real-time clock module. IC Role / Device Role: Activates high-side switch control line when main supply falls below 3.0 V. Use Value: Ensures uninterrupted RTC operation with zero-gap transition using complementary drive strength. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB30DBZR | Open-drain active-low output; 3.0 V threshold; 350 nA IQ; SOT-23-3 package | Requires external pull-up; not complementary; smaller footprint but no sourcing capability | Select when board space is critical and only sinking capability is needed with active-low logic polarity |
| MAX809SEUR+T | Push-pull active-low output; 3.0 V threshold; 12 µA IQ; SOT-23-3 package | Higher quiescent current; no hysteresis adjustment; fixed active-low polarity | Select for legacy compatibility where higher IQ is acceptable and active-low reset is standard |
Compared with TLV803EB30DBZR and MAX809SEUR+T, the NCP300HSN30T1 provides complementary drive (no external components), lowest quiescent current (0.5 µA), and AEC-Q100 qualification - making it optimal for new automotive and ultra-low-power portable designs requiring active-high reset and robust noise immunity.
Availability
NCP300HSN30T1 is available at Aetrix Electronics and suitable for microprocessor reset control, low-battery detection, power-fail indication, and battery backup switchover applications requiring stable component supply across automotive, industrial, and portable electronics programs.
Supply support for NCP300HSN30T1 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP300 series belongs to onsemi's precision voltage supervisor product line, engineered specifically for ultra-low-power reset control in battery-critical systems where long service life and deterministic fault response are mandatory.
FAQ
What is the exact detection threshold voltage of the NCP300HSN30T1?
The NCP300HSN30T1 has a nominal detection threshold of 3.0 V, specified as 2.94 V (min) to 3.06 V (max) at +25°C, and guaranteed within ±3% (2.91 V to 3.09 V) over the full operating temperature range of −40°C to +125°C. This tolerance ensures reliable reset assertion before microprocessor supply violations occur.
Does the NCP300HSN30T1 require an external pull-up resistor?
No, the NCP300HSN30T1 does not require an external pull-up resistor because it features a complementary output stage with integrated P-channel source and N-channel sink transistors. This architecture allows it to actively drive both high and low states, eliminating external components and simplifying reset circuit design.
What is the quiescent current of the NCP300HSN30T1 at low input voltage?
The NCP300HSN30T1 draws 0.25 µA typical quiescent current when VIN = 2.87 V and 0.50 µA typical when VIN = 5.0 V. At minimum operating voltage (0.8 V), supply current remains below 1.3 µA - enabling multi-year operation on coin-cell batteries in always-on monitoring applications.
Is the NCP300HSN30T1 qualified for automotive applications?
Yes, the NCP300HSN30T1 is AEC-Q100 qualified (Grade 1: −40°C to +125°C) and PPAP capable. It meets stringent automotive reliability standards including latch-up immunity (±200 mA), ESD protection (2000 V HBM), and thermal performance (RJA = 250°C/W), making it suitable for engine control, infotainment, and ADAS subsystems.
How does hysteresis improve system stability in the NCP300HSN30T1?
The NCP300HSN30T1 incorporates 0.09–0.21 V hysteresis (0.15 V typical) between its upper (VDET+) and lower (VDET−) thresholds. This prevents rapid toggling of the reset output during slow or noisy supply recovery, ensuring clean, chatter-free reset signaling essential for deterministic microprocessor initialization.
NCP300HSN30T1 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:
- 3V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP300HSN30T1 FAQ
1.How can I place an order for NCP300HSN30T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP300HSN30T1 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 NCP300HSN30T1 reliable?
The price and inventory of NCP300HSN30T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP300HSN30T1 is usually 5 days.
3.What payment methods are accepted for NCP300HSN30T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP300HSN30T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP300HSN30T1?
NCP300HSN30T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP300HSN30T1 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 NCP300HSN30T1?
For technical support, including NCP300HSN30T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP300HSN30T1 requirements.
6.How does Aetrix verify that NCP300HSN30T1 is sourced from the original manufacturer or authorized distributors?
All NCP300HSN30T1 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 NCP300HSN30T1 meets industry standards.
7.What is the process for return or replacement of NCP300HSN30T1?
All NCP300HSN30T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP300HSN30T1, 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 NCP300HSN30T1 part is unused and in its original packaging.
Return procedure for NCP300HSN30T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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