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onsemi NCP300LSN15T1
- Part No.:
- NCP300LSN15T1
- Manufacturer:
- onsemi
- Category:
- Supervisors
- Package:
- -
- Datasheet:
-
NCP300LSN15T1.pdf
- Description:
- IC SUPERVISOR PWR SUP SUPPORT
- Quantity:
- Payment:
- Shipping:
Inventory:9,650
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Product details
Overview
NCP300LSN15T1 from onsemi is a complementary-output ultra-low-current voltage detector IC designed for microprocessor reset control in battery-powered systems. It features a 1.5 V ±2.0% accurate undervoltage detection threshold, 0.5 µA typical quiescent current, and operates from 0.8 V to 10 V supply. Used in portable embedded devices requiring reliable power-on reset and brownout protection.
For engineers reviewing the NCP300LSN15T1 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, TSOP-5 package details, reset timing behavior, and validated alternative options for low-power system supervision design.
Technical Context
The NCP300LSN15T1 implements a precision bandgap-based comparator with built-in hysteresis (75 mV typ) to prevent oscillatory reset assertion near threshold crossing. Its complementary output stage provides both active-high and active-low reset signals simultaneously, eliminating external inverters in dual-signal reset architectures.
Designed for operation down to 0.55 V input at −40°C, it supports wide-temperature industrial use (−40°C to +85°C ambient) and integrates ESD protection exceeding 2000 V HBM. The device draws only 0.5 µA at 25°C and maintains stable detection accuracy across its full operating voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Detector Threshold | 1.50 V ±2.0% (VDET−), enabling precise 1.5 V supply monitoring with guaranteed margin against false triggers |
| Supply Current | 0.5 µA typical at 25°C, extending battery life in always-on supervisory applications |
| Operating Voltage Range | 0.8 V to 10 V input, supporting direct connection to Li-ion, NiMH, or multi-rail system supplies |
| Hysteresis | 0.075 V typical (VHYS), providing noise immunity and preventing chatter during slow-voltage recovery |
| Reset Propagation Delay | 49 ns tpHL / 115 ns tpLH (complementary output), ensuring fast, deterministic reset assertion and release timing |
| Output Drive Capability | P-channel source: 2.0 mA min at VOUT = 2.4 V; N-channel sink: 1.0 mA min at VOUT = 0.5 V - sufficient to drive standard logic inputs directly |
| Package | Thin TSOP-5 (Case 483), 2.1 mm × 1.6 mm footprint with 0.65 mm pitch - optimized for space-constrained portable PCBs |
Pinout & Package
Thin TSOP-5 package (Case 483), surface-mount, lead-free compliant. Pin 1 is Reset Output, Pin 2 is Input (VIN), Pin 3 is GND, Pin 4 is NC, Pin 5 is NC (top view marking: xxxYW).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Reset Output (Complementary) | Simultaneous active-high and active-low reset signals; drives logic-level loads without external inversion |
| 2 | Input (VIN) | Main supply voltage sensing node; internally referenced to precision bandgap; supports down to 0.55 V operation |
| 3 | GND | Analog and digital ground reference; must be low-impedance for stable threshold accuracy |
| 4 | No Connect | Internally unconnected; no external connection required; electrically isolated |
| 5 | No Connect | Internally unconnected; no external connection required; electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.5 µA typical enables >10-year battery life in coin-cell–powered IoT endpoints |
| ±2.0% threshold accuracy | Guaranteed over temperature and voltage ensures robust reset timing without calibration |
| Complementary reset outputs | Eliminates need for external inverters in systems requiring both /RESET and RESET signals |
| Integrated hysteresis | 75 mV typical prevents false resets during noisy or slowly recovering supply conditions |
| Wide input voltage range | 0.8 V to 10 V operation supports direct monitoring of primary batteries, LDO outputs, or DC-DC rails |
Applications
| Microprocessor Power-On Reset | Low-Battery Detection |
|---|---|
|
Use Scenario: Ensures clean initialization of ARM Cortex-M or RISC-V microcontrollers after cold start or wake-up from deep sleep. IC Role / Device Role: Voltage detector asserting /RESET until VCC exceeds 1.5 V with hysteresis, then holding valid logic levels. Use Value: Prevents code execution at marginal voltage; eliminates need for RC-based reset circuits with poor temperature stability. |
Use Scenario: Monitors declining voltage of single-cell Li-ion or alkaline batteries in handheld medical devices. IC Role / Device Role: Triggers low-battery warning interrupt via active-low output when cell voltage drops below 1.5 V. Use Value: Enables graceful shutdown before brownout; 0.5 µA current draw avoids accelerating battery depletion. |
| Power-Fail Indicator | Battery Backup Switchover |
|
Use Scenario: Detects AC/DC adapter failure in wall-powered consumer electronics with battery backup. IC Role / Device Role: Generates immediate active-low signal upon main rail collapse below 1.5 V threshold. Use Value: Provides sub-100 ns response to power loss, enabling capacitor hold-up time extension and data save operations. |
Use Scenario: Controls automatic switchover from main supply to backup coin cell in real-time clocks or SRAM keep-alive circuits. IC Role / Device Role: Drives MOSFET gate or analog switch control line using complementary outputs for seamless transition. Use Value: Dual outputs simplify control logic; 2 mA drive strength directly interfaces with common load switches without buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV803EB15DBZR | 1.5 V threshold, open-drain output, 0.5 µA IQ, SOT-23-3 package (3-pin, no NC pins) | Lacks complementary output; requires external pull-up; smaller footprint but no dual-signal capability | Select when board space is critical and only one reset polarity is needed; verify pull-up resistor impact on rise time |
| NCP300HSN15T1 | Same 1.5 V threshold and TSOP-5 package, but active-high reset output variant ('H' suffix vs 'L') | Provides only active-high reset; not functionally interchangeable without circuit redesign | Choose only if system requires active-high assertion; pinout identical but logic polarity inverted |
Compared with TLV803EB15DBZR and NCP300HSN15T1, the NCP300LSN15T1 uniquely delivers simultaneous active-high and active-low reset signals in a compact TSOP-5 package-enabling simpler, more robust reset architectures in resource-constrained portable designs.
Availability
NCP300LSN15T1 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 and long-term lifecycle support.
Supply support for NCP300LSN15T1 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 leader delivering energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The NCP300 series belongs to onsemi's precision voltage supervisor product line, engineered specifically for ultra-low-power, high-accuracy reset control in portable and battery-critical systems.
FAQ
What is the exact reset threshold voltage of the NCP300LSN15T1?
The NCP300LSN15T1 has a nominal detector threshold of 1.50 V with ±2.0% accuracy over temperature and voltage. Measured as VDET− (input voltage decreasing), it guarantees 1.470 V minimum and 1.530 V maximum at 25°C per datasheet Table 1. This precision enables reliable reset assertion in 1.5 V–biased systems without margin oversizing.
Does the NCP300LSN15T1 require an external pull-up resistor?
No, the NCP300LSN15T1 does not require an external pull-up resistor because it uses a complementary output architecture - integrating both P-channel source and N-channel sink transistors. Unlike open-drain detectors such as the NCP301 series, it actively drives high and low states without external components.
What is the minimum operating voltage for the NCP300LSN15T1 at −40°C?
Per datasheet Electrical Characteristics, the NCP300LSN15T1 maintains functional operation down to 0.55 V at −40°C ambient temperature. This ultra-low minimum input voltage supports use with deeply discharged batteries or ultra-low-voltage energy harvesting sources while retaining valid reset signaling.
How does the hysteresis of the NCP300LSN15T1 improve system reliability?
The NCP300LSN15T1 provides 75 mV typical hysteresis (VHYS), meaning the rising-edge threshold is ~1.575 V when recovering from undervoltage. This gap prevents oscillatory reset toggling during slow or noisy supply ramp-up, ensuring single, clean reset assertion - critical for deterministic microcontroller boot sequences.
Is the NCP300LSN15T1 RoHS-compliant and lead-free?
Yes, the NCP300LSN15T1 is manufactured in Pb-free (lead-free) packaging per onsemi's compliance documentation. The TSOP-5 package meets RoHS Directive 2011/65/EU requirements and is compatible with standard lead-free reflow profiles.
NCP300LSN15T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- Number of Voltages Monitored:
- -
- Voltage - Threshold:
- -
- Output:
- -
- Reset:
- -
- Reset Timeout:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
NCP300LSN15T1 FAQ
1.How can I place an order for NCP300LSN15T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP300LSN15T1 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 NCP300LSN15T1 reliable?
The price and inventory of NCP300LSN15T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP300LSN15T1 is usually 5 days.
3.What payment methods are accepted for NCP300LSN15T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP300LSN15T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP300LSN15T1?
NCP300LSN15T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP300LSN15T1 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 NCP300LSN15T1?
For technical support, including NCP300LSN15T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP300LSN15T1 requirements.
6.How does Aetrix verify that NCP300LSN15T1 is sourced from the original manufacturer or authorized distributors?
All NCP300LSN15T1 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 NCP300LSN15T1 meets industry standards.
7.What is the process for return or replacement of NCP300LSN15T1?
All NCP300LSN15T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP300LSN15T1, 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 NCP300LSN15T1 part is unused and in its original packaging.
Return procedure for NCP300LSN15T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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