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onsemi NCP300LSN20T1
- Part No.:
- NCP300LSN20T1
- Manufacturer:
- onsemi
- Category:
- Supervisors
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP300LSN20T1.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,138
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Product details
Overview
NCP300LSN20T1 from onsemi is a complementary-output ultra-low-current voltage detector IC designed for microprocessor reset control in battery-powered systems. It features a 2.0 V ±2.0% accurate undervoltage detection threshold, 0.06 V typical hysteresis, 0.48 µA typical supply current at 4.0 V input, and operates from 0.8 V to 10 V over −40°C to +125°C. It delivers P-channel source current up to 9.7 mA and N-channel sink current up to 3.5 mA for robust reset signaling in portable embedded applications.
For engineers reviewing the NCP300LSN20T1 datasheet, pinout, applications, or equivalent options, key selection criteria include its active-low complementary reset output, tight 2.0 V threshold tolerance across temperature, sub-1 µA quiescent current, TSOP-5 package compatibility with space-constrained PCB layouts, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The NCP300LSN20T1 implements a precision bandgap-based comparator with built-in hysteresis to prevent oscillatory reset behavior during slow-rising or noisy supply transitions. Its dual complementary outputs (P-channel high-side and N-channel low-side) enable direct drive of logic inputs without external pull-up/down resistors.
It uses an internal reference trimmed during wafer test to achieve ±2.0% threshold accuracy at 25°C and ±3% over −40°C to +125°C for the 2.0 V variant. The device remains functional down to 0.55 V input at cold temperature, supporting brown-out detection in ultra-low-voltage subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detector Threshold | 2.00 V (±2.0% at 25°C; ±3% over −40°C to +125°C) - ensures reliable reset assertion before MCU operational failure |
| Hysteresis | 0.100 V typical - prevents chatter during supply recovery near threshold |
| Supply Current | 0.48 µA typical at Vin = 4.0 V - extends battery life in always-on monitoring circuits |
| Operating Voltage Range | 0.8 V to 10 V - supports wide-input industrial and automotive power rails |
| Output Drive | P-channel source: 9.7 mA at Vin = 4.5 V, VOUT = 2.4 V; N-channel sink: 3.5 mA at Vin = 1.5 V, VOUT = 0.5 V - directly interfaces with 1.8 V/3.3 V logic |
| Propagation Delay | 55 ns (tpHL), 108 ns (tpLH) - enables fast system response to supply faults |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive 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 | Complementary output: active-low N-channel sink + active-high P-channel source - eliminates need for external pull-up resistor |
| 2 | Input (VIN) | Detects monitored supply voltage - threshold referenced internally; no external divider required |
| 3 | Ground | Reference return path for detector and output stages - must be low-impedance for stable hysteresis |
| 4 | No Connect | Internally unconnected - must be left floating or tied to GND per layout guidelines |
| 5 | No Connect | Internally unconnected - must be left floating or tied to GND per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.48 µA typical enables >10-year battery life in coin-cell–powered IoT sensors |
| Complementary reset output | Integrated Pch/Nch pair drives CMOS inputs directly - reduces BOM count and board area |
| High-accuracy threshold | ±2.0% at 25°C and ±3% over full temp range - eliminates calibration in production |
| Wide input voltage range | Operates down to 0.55 V at −40°C - supports early brown-out detection in Li-ion discharge profiles |
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) qualification - suitable for automotive body electronics and ADAS subsystems |
Applications
| Microprocessor Reset Control | Low-Battery Detection |
|---|---|
|
Use Scenario: Monitors main 3.3 V rail in a portable medical monitor to assert reset if voltage drops below safe operating level. IC Role / Device Role / Timing Role: Voltage detector with complementary output asserts active-low reset signal to ARM Cortex-M4 MCU upon undervoltage event. Use Value: Prevents corrupted memory writes and firmware lockup by guaranteeing clean reset before supply collapse. |
Use Scenario: Detects end-of-life in CR2032-powered wireless sensor node when supply falls below 2.0 V. IC Role / Device Role / Timing Role: Threshold-triggered interrupt generator - sinks current to wake microcontroller from deep sleep. Use Value: Enables graceful shutdown and data preservation using only 0.48 µA standby current. |
| Power-Fail Indicator | Battery Backup Switchover |
|
Use Scenario: Signals AC/DC adapter failure in industrial PLC I/O module before main 5 V rail collapses. IC Role / Device Role / Timing Role: Fast-propagation (55 ns tpHL) voltage monitor driving LED driver transistor. Use Value: Provides visible warning ≥100 µs before system halt - sufficient time for emergency logging. |
Use Scenario: Controls switchover from main 3.3 V supply to backup supercapacitor in smart meter RTC circuit. IC Role / Device Role / Timing Role: Dual-output stage enables seamless transition: Pch pulls RTC_EN high while Nch discharges hold-up capacitor bleed path. Use Value: Eliminates external MOSFET and gate driver - reduces solution size by 35% vs discrete implementation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB20DBZR | Open-drain active-low output only; 0.5 µA IQ; 2.0 V ±1.5% threshold; SOT-23-3 package | Lacks complementary output - requires external pull-up; smaller footprint but less flexible interface | Select when board space is critical and only active-low reset is needed; verify pull-up value for rise time. |
| MAX809SEUR+T | Push-pull active-low output; 12 µA IQ; 2.0 V ±2.5% threshold; SOT-23-3 | Higher quiescent current limits battery life; no hysteresis adjustment; not AEC-Q100 qualified | Choose for cost-sensitive consumer applications where automotive qualification and ultra-low IQ are not required. |
Compared with TLV803EB20DBZR and MAX809SEUR+T, the NCP300LSN20T1 uniquely combines complementary output architecture, sub-1 µA quiescent current, and AEC-Q100 Grade 1 qualification - making it the only option that simultaneously satisfies automotive reset integrity, multi-rail interface flexibility, and decade-scale battery operation.
Availability
NCP300LSN20T1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor nodes, and portable medical devices requiring stable component supply with long-term lifecycle assurance.
Supply support for NCP300LSN20T1 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, and IoT applications.
The NCP300 series belongs to onsemi's precision analog voltage supervisor product line, engineered specifically for ultra-low-power reset control in battery-critical and automotive-grade systems.
FAQ
What is the guaranteed operating temperature range for NCP300LSN20T1?
The NCP300LSN20T1 is specified from −40°C to +125°C for all voltage options ≥1.2 V. This Grade 1 temperature range is validated per AEC-Q100 requirements and applies to the full electrical performance envelope - including threshold accuracy, propagation delay, and output drive strength - ensuring reliable operation in automotive engine compartments and industrial control cabinets.
Does NCP300LSN20T1 require external components to function as a reset controller?
No, the NCP300LSN20T1 requires no external resistors, capacitors, or pull-up devices to operate as a reset controller. Its 2.0 V threshold is factory-trimmed and internally referenced; the complementary output eliminates need for external pull-up; and hysteresis is fully integrated. Only input decoupling (e.g., 100 nF ceramic) is recommended per onsemi layout guidelines.
How does the complementary output of NCP300LSN20T1 improve system design versus open-drain alternatives?
The complementary output of NCP300LSN20T1 provides simultaneous active-low sink and active-high source capability on Pin 1. This allows direct connection to both NMOS-gated and PMOS-gated reset inputs without external level-shifting or pull-up networks - reducing component count, PCB area, and potential noise coupling paths compared to open-drain detectors like NCP301LSN20T1.
Is NCP300LSN20T1 pin-compatible with other members of the NCP300 family?
Yes, all NCP300xSNxxT1 variants (e.g., NCP300LSN18T1, NCP300LSN25T1) share identical TSOP-5 pinout, footprint, and complementary output architecture. Only the detector threshold differs - enabling drop-in replacement across 0.9 V to 4.9 V options without layout changes, provided system-level timing and drive requirements remain compatible.
What is the minimum input voltage at which NCP300LSN20T1 remains functional?
The NCP300LSN20T1 maintains functionality down to 0.55 V at −40°C and 0.70 V at +125°C, as specified in the Electrical Characteristics table. This enables brown-out detection during deep discharge of single-cell Li-ion or alkaline batteries, allowing controlled system shutdown before the MCU enters undefined states.
NCP300LSN20T1 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:
- 2V
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP300LSN20T1 FAQ
1.How can I place an order for NCP300LSN20T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP300LSN20T1 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 NCP300LSN20T1 reliable?
The price and inventory of NCP300LSN20T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP300LSN20T1 is usually 5 days.
3.What payment methods are accepted for NCP300LSN20T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP300LSN20T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP300LSN20T1?
NCP300LSN20T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP300LSN20T1 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 NCP300LSN20T1?
For technical support, including NCP300LSN20T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP300LSN20T1 requirements.
6.How does Aetrix verify that NCP300LSN20T1 is sourced from the original manufacturer or authorized distributors?
All NCP300LSN20T1 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 NCP300LSN20T1 meets industry standards.
7.What is the process for return or replacement of NCP300LSN20T1?
All NCP300LSN20T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP300LSN20T1, 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 NCP300LSN20T1 part is unused and in its original packaging.
Return procedure for NCP300LSN20T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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