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NXP Semiconductors NCX2222DPH
- Part No.:
- NCX2222DPH
- Manufacturer:
- NXP Semiconductors
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
NCX2222DPH.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,021
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Product details
Overview
NCX2222DPH from NXP Semiconductors is a dual, low-voltage, low-power comparator with open-drain outputs, designed for rail-to-rail input/output operation across 1.3 V to 5.5 V supply rails. It delivers 5 µA per comparator supply current, 0.8 µs typical propagation delay at 20 mV overdrive, and internal 9 mV hysteresis - enabling precise threshold detection in battery-powered portable electronics.
For engineers reviewing the NCX2222DPH datasheet, NCX2222DPH pinout, NCX2222DPH application, or NCX2222DPH equivalent, key selection considerations include its guaranteed 1.3 V minimum operating voltage, absence of phase inversion under overdriven inputs, ESD robustness (HBM >1500 V), and compatibility with both 3.0 V and 5.0 V system architectures.
Technical Context
The NCX2222DPH implements two independent comparators with N-channel open-drain output stages, requiring external pull-up resistors to define HIGH-level logic states. Its rail-to-rail input common-mode range extends 0.1 V beyond VEE and VCC, eliminating input clamping diodes and supporting direct sensing of signals near supply rails.
Internal hysteresis (typ. 9 mV) provides noise immunity without external components, while the 5 µA per comparator quiescent current and 0.8 µs propagation delay enable responsive, ultra-low-power monitoring in always-on subsystems such as battery voltage supervision and wake-up circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.3 V to 5.5 V - enables single-supply operation in coin-cell (1.5 V), Li-ion (3.0–3.7 V), and standard logic (5.0 V) systems without level-shifting. |
| Supply Current per Comparator | 5 µA typical - supports multi-year battery life in IoT sensors and wearable devices with periodic wake-up intervals. |
| Propagation Delay | 0.8 µs typical at 20 mV overdrive - ensures fast response to transient events like power-fail detection or zero-crossing timing. |
| Input Offset Voltage | ±30 mV max (−40 °C to +85 °C) - defines minimum detectable differential signal for precision threshold applications. |
| Hysteresis Voltage | 6–13 mV (25 °C), up to 20 mV at 1.3 V - suppresses chatter on noisy inputs without external feedback resistors. |
| ESD Robustness | HBM >1500 V, CDM >1000 V - reduces need for external protection in handheld and industrial edge nodes. |
| Operating Temperature | −40 °C to +85 °C - qualified for consumer, industrial, and extended-temperature embedded environments. |
Pinout & Package
TSSOP8 package (SOT505-2): plastic thin shrink small outline, 8-lead, 3 mm body width, 0.65 mm lead pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 (Pin 1) | Comparator 1 open-drain output | Sinks current to VEE; requires external pull-up to set HIGH logic level and drive load (max 5 mA). |
| IN1− (Pin 2) | Comparator 1 inverting input | Rail-to-rail capable; accepts voltages from VEE to VCC + 0.5 V without phase inversion. |
| IN1+ (Pin 3) | Comparator 1 non-inverting input | Same rail-to-rail range as IN1−; differential input voltage determines output state. |
| VEE (Pin 4) | Negative supply / ground reference | Typically 0 V; all inputs and outputs referenced to this node; substrate tie point. |
| IN2+ (Pin 5) | Comparator 2 non-inverting input | Independent channel; identical electrical characteristics to IN1+. |
| IN2− (Pin 6) | Comparator 2 inverting input | Independent channel; identical electrical characteristics to IN1−. |
| OUT2 (Pin 7) | Comparator 2 open-drain output | Functionally identical to OUT1; supports separate pull-up networks for isolated logic domains. |
| VCC (Pin 8) | Positive supply | Accepts 1.3–5.5 V; powers both comparators; decoupling capacitor recommended near pin. |
Key Features
| Feature | Design Value |
|---|---|
| No phase inversion with overdriven inputs | Enables reliable operation when input signals exceed supply rails - critical for fault detection and clamp-free sensor interfacing. |
| Rail-to-rail input common-mode range | Supports direct connection to battery terminals, thermistor dividers, or op-amp outputs without level-shifting circuitry. |
| Internal hysteresis (6–13 mV) | Eliminates need for external positive feedback resistors in window comparators or Schmitt triggers. |
| Low 0.8 µs propagation delay | Meets timing requirements for high-speed zero-crossing detection in AC line monitoring and motor control commutation. |
| Open-drain outputs with 5 mA sink capability | Allows wired-OR logic, level translation between different supply domains (e.g., 3.3 V logic to 5 V bus), and direct LED driving. |
Applications
| Cellular Telephone Power Management | Alarm System Threshold Detection |
|---|---|
Use Scenario: Monitoring battery voltage during sleep mode to trigger wake-up before brownout. IC Role / Device Role / Timing Role: Dual comparator independently supervises main battery and backup coin cell, asserting reset or interrupt signals via open-drain outputs. Use Value: 5 µA total quiescent current extends standby time; rail-to-rail inputs directly sense 0–4.2 V Li-ion range without attenuation. |
Use Scenario: Detecting intrusion sensor activation (PIR, door contact) and triggering audible/visual alarm. IC Role / Device Role / Timing Role: One comparator compares sensor output to adjustable threshold; second provides hysteresis-based debouncing. Use Value: Internal 9 mV hysteresis prevents false triggers from EMI or mechanical bounce; 1.3 V operation supports coin-cell-powered remote sensors. |
| Personal Digital Assistant (PDA) Interface | USB-C Power Delivery Status Monitoring |
Use Scenario: Detecting accessory insertion (e.g., stylus dock, cradle) via analog voltage signature. IC Role / Device Role / Timing Role: Dual comparator validates multiple voltage thresholds simultaneously to identify dock type and orientation. Use Value: Independent channels enable parallel comparison; 0.8 µs delay ensures rapid response to plug/unplug events. |
Use Scenario: Monitoring CC line voltage levels to determine USB-C cable orientation and source capability. IC Role / Device Role / Timing Role: Open-drain outputs interface directly with microcontroller GPIOs configured as interrupt inputs. Use Value: 5.5 V absolute maximum rating tolerates CC line transients; rail-to-rail inputs capture 0–5 V PD signaling range accurately. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702IDR | Higher supply current (1.8 µA per comparator), wider temp range (−40 °C to +125 °C), push-pull output option available | Better suited for automotive under-hood use; lacks internal hysteresis - requires external feedback | Select TLV3702IDR when extended temperature range or push-pull output is required; add external hysteresis resistor network if noise immunity is critical. |
| MAX9062ASA+ | Lower propagation delay (120 ns), higher supply current (12 µA), no internal hysteresis, ±0.5 V input overvoltage tolerance | Optimized for high-speed window comparators; requires external hysteresis and overvoltage protection | Choose MAX9062ASA+ only when sub-200 ns response is mandatory; verify external component count and board space impact versus NCX2222DPH's integrated hysteresis. |
Compared with TLV3702IDR and MAX9062ASA+, the NCX2222DPH uniquely combines ultra-low 5 µA supply current, built-in hysteresis, and guaranteed 1.3 V operation - making it optimal for space-constrained, battery-sensitive designs where simplicity and longevity outweigh raw speed or extended temperature needs.
Availability
NCX2222DPH is available at Aetrix Electronics and suitable for cellular telephones, alarm and security systems, and personal digital assistants requiring stable component supply and long-term manufacturability.
Supply support for NCX2222DPH 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer markets.
The NCX2222DPH belongs to NXP's ultra-low-power analog comparator family, engineered specifically for energy-constrained portable electronics where minimal quiescent current, rail-to-rail operation, and integrated noise immunity are essential design requirements.
FAQ
What is the minimum operating voltage for the NCX2222DPH?
The NCX2222DPH is guaranteed to operate down to 1.3 V supply voltage across the full −40 °C to +85 °C temperature range. This specification enables direct integration into single-cell alkaline, lithium primary, or low-voltage rechargeable battery systems without boost regulation.
Does the NCX2222DPH require external hysteresis components?
No, the NCX2222DPH includes internal hysteresis of 6–13 mV (typ. 9 mV), which eliminates the need for external positive feedback resistors in most threshold-detection applications. This simplifies PCB layout and improves reliability in noise-prone environments.
Can the NCX2222DPH outputs drive an LED directly?
Yes, each open-drain output of the NCX2222DPH can sink up to 5 mA at VCC = 5.5 V, allowing direct LED driving with a series current-limiting resistor. For example, with a 2 V red LED and 3.3 V supply, a 270 Ω resistor sets ~4.8 mA forward current.
What is the purpose of the exposed pad on the NCX2222DPH TSSOP8 package?
The exposed pad on the NCX2222DPH (SOT505-2) is mechanically attached to the die substrate using conductive die attach material but has no electrical function. It may remain floating or be connected to VEE; soldering is optional and does not affect electrical performance.
How does the NCX2222DPH handle input signals exceeding the supply rails?
The NCX2222DPH features no phase inversion with overdriven inputs - meaning its output remains logically consistent even when IN+ or IN− exceeds VCC or falls below VEE. This behavior allows safe interfacing with unregulated sensors or legacy analog signals without external clamping diodes.
NCX2222DPH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.3V ~ 5.5V
- :
- 30mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA
- Current - Input Bias (Max):
- 68mA
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 70dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 0.8µs
- Propagation Delay (Max):
- 9mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
NCX2222DPH FAQ
1.How can I place an order for NCX2222DPH through Aetrix?
Please submit a Request for Quotation (RFQ) for NCX2222DPH 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 NCX2222DPH reliable?
The price and inventory of NCX2222DPH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCX2222DPH is usually 5 days.
3.What payment methods are accepted for NCX2222DPH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCX2222DPH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCX2222DPH?
NCX2222DPH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCX2222DPH 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 NCX2222DPH?
For technical support, including NCX2222DPH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCX2222DPH requirements.
6.How does Aetrix verify that NCX2222DPH is sourced from the original manufacturer or authorized distributors?
All NCX2222DPH 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 NCX2222DPH meets industry standards.
7.What is the process for return or replacement of NCX2222DPH?
All NCX2222DPH units undergo pre-shipment inspection (PSI). If there is an issue with NCX2222DPH, 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 NCX2222DPH part is unused and in its original packaging.
Return procedure for NCX2222DPH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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