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NXP Semiconductors NCX2222GMH
- Part No.:
- NCX2222GMH
- Manufacturer:
- NXP Semiconductors
- Category:
- Comparators
- Package:
- 8-XFQFN Exposed Pad
- Datasheet:
-
NCX2222GMH.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8XQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
NCX2222GMH 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 typical supply current per comparator, 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 NCX2222GMH datasheet, NCX2222GMH pinout, NCX2222GMH application, or NCX2222GMH equivalent, this page provides verified functional specifications, validated package mapping to XQFN8 (SOT902-2), confirmed pin roles, real-world use cases including zero-crossing detection and logic level translation, and two technically documented alternative comparators for low-voltage embedded systems.
Technical Context
The NCX2222GMH integrates two independent comparators with N-channel open-drain output stages, each sinking up to 5 mA while maintaining rail-to-rail common-mode input range (VEE to VCC) and no phase inversion under overdriven inputs. Its internal hysteresis (6–13 mV) and sub-1 µs propagation delay support stable decision-making in noisy environments.
Operating from 1.3 V minimum supply voltage, the device maintains full functionality across industrial temperature range (−40 °C to +85 °C) and exhibits ultra-low quiescent current (5 µA typ. per comparator), making it suitable for always-on sensing nodes and energy-constrained applications where supply headroom is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.3 V to 5.5 V - enables direct integration into both 1.8 V/2.5 V microcontroller I/O domains and 3.3 V/5 V legacy systems without level-shifting. |
| Supply Current (per comparator) | 5 µA typical - supports multi-year battery life in coin-cell–powered devices such as wearables and remote sensors. |
| Propagation Delay | 0.8 µs typical at 20 mV overdrive - ensures fast response to analog transitions in timing-critical edge-detection circuits. |
| Hysteresis Voltage | 6–13 mV (typ. 9 mV) - suppresses chatter on slow or noisy input signals without external components. |
| Input Offset Voltage | ±30 mV max (−40 °C to +85 °C) - defines worst-case threshold accuracy for precision window or zero-crossing detection. |
| Output Sink Current | 5 mA max at VCC = 3.0 V - drives standard LED indicators, MOSFET gates, or pull-up resistors up to 10 kΩ at 3.3 V. |
| ESD Protection | HBM >1500 V, CDM >1000 V - withstands handling in non-ESD-controlled assembly environments. |
Pinout & Package
NCX2222GMH is packaged in XQFN8 (SOT902-2): 1.6 mm × 1.6 mm × 0.5 mm body, 8-terminal no-lead plastic package with exposed thermal pad (not electrically connected; must remain floating or tied to VEE).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Open-drain N-channel output requiring external pull-up; sinks current when active low. |
| 2 (IN1−) | Comparator 1 inverting input | Differential input referenced to IN1+; accepts rail-to-rail voltage from VEE to VCC. |
| 3 (IN1+) | Comparator 1 non-inverting input | Differential input referenced to IN1−; supports same rail-to-rail common-mode range. |
| 4 (VEE) | Negative supply / ground reference | System ground or negative rail; all voltages referenced to this node. |
| 5 (IN2+) | Comparator 2 non-inverting input | Independent second comparator input; identical electrical characteristics to IN1+. |
| 6 (IN2−) | Comparator 2 inverting input | Independent second comparator input; identical electrical characteristics to IN1−. |
| 7 (OUT2) | Comparator 2 output | Second open-drain output, functionally identical to OUT1 and electrically isolated. |
| 8 (VCC) | Positive supply | Primary power rail; supplies both comparators; supports 1.3 V to 5.5 V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input/output | Enables direct interfacing with low-voltage MCUs and sensors without external biasing or level shifters. |
| No phase inversion on overdrive | Prevents erroneous output toggling when input exceeds supply rails - critical for robust zero-crossing detection. |
| Internal hysteresis (9 mV typ.) | Eliminates need for external positive feedback resistors in noise-prone applications like battery voltage monitoring. |
| Ultra-low 5 µA supply current | Reduces system standby power by >90% vs. standard comparators, extending battery life in IoT endpoints. |
| −40 °C to +85 °C operation | Validated performance across full industrial temperature range without derating or thermal compensation. |
Applications
| Battery Voltage Monitor | Zero-Crossing Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger low-battery alerts or cutoff. IC Role / Device Role: Dual comparator configured as window detector - one channel for upper threshold (4.2 V), one for lower (3.0 V). Use Value: 1.3 V minimum supply allows direct connection to partially discharged cells; 5 µA quiescent current minimizes self-discharge impact. |
Use Scenario: Converting AC line voltage (e.g., 120 V RMS) to clean digital zero-cross pulses for TRIAC control in smart lighting. IC Role / Device Role: Single comparator comparing scaled AC waveform against ground reference (VEE = 0 V). Use Value: No phase inversion ensures reliable pulse generation even during input transients; rail-to-rail input accepts attenuated signal down to 0 V. |
| Logic Level Translator | Alarm Threshold Comparator |
|
Use Scenario: Translating 1.8 V GPIO signals from an ultra-low-power MCU to 3.3 V or 5 V peripheral interface levels. IC Role / Device Role: Open-drain output driving pull-up to higher rail; input referenced to low-voltage domain. Use Value: 1.3 V minimum VCC permits operation with 1.8 V MCU supply; propagation delay <1 µs preserves timing integrity in high-speed control loops. |
Use Scenario: Detecting smoke sensor output voltage rise above alarm threshold in battery-powered fire alarms. IC Role / Device Role: Single comparator comparing sensor output to stable reference; hysteresis prevents false triggers from EMI. Use Value: 9 mV internal hysteresis eliminates need for external RC network; 5 µA supply current extends 10-year battery life target. |
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 (1.3 µA per comparator), wider VCC range (1.8–16 V), no internal hysteresis. | Requires external hysteresis resistors; better suited for high-voltage industrial sensing than ultra-low-power portable use. | Select TLV3702IDR only if operating above 1.8 V and needing higher output drive or wider supply margin. |
| MAX9062ASA+ | Lower propagation delay (120 ns), higher supply current (12 µA), rail-to-rail output but not rail-to-rail input. | Superior speed for high-frequency signal conditioning; unsuitable for sub-1.8 V operation or true rail-to-rail input sensing. | Choose MAX9062ASA+ when sub-200 ns response is mandatory and supply ≥1.8 V is guaranteed. |
Compared with TLV3702IDR and MAX9062ASA+, the NCX2222GMH uniquely combines 1.3 V operation, 5 µA supply current, internal hysteresis, and rail-to-rail input - making it the only option among the three qualified for coin-cell–powered, noise-immune threshold detection below 1.8 V.
Availability
NCX2222GMH is available at Aetrix Electronics and suitable for battery-powered portable electronics, industrial sensor interfaces, and low-voltage logic translation requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for NCX2222GMH 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 applications.
The NCX2222GMH belongs to NXP's ultra-low-power analog comparator family, engineered specifically for energy-constrained portable and IoT devices where supply voltage headroom and quiescent power are primary design constraints.
FAQ
What is the minimum operating voltage for the NCX2222GMH?
The NCX2222GMH is guaranteed to operate down to 1.3 V supply voltage across the full −40 °C to +85 °C temperature range. This functional operating range is explicitly specified in Table 5 of the NXP datasheet and enables direct use with partially discharged single-cell Li-ion or alkaline batteries without regulation. The NCX2222GMH maintains rail-to-rail input capability and stable propagation delay even at this minimum VCC.
Does the NCX2222GMH require external hysteresis resistors?
No, the NCX2222GMH includes internal hysteresis of 6–13 mV (typ. 9 mV), eliminating the need for external positive feedback components in most threshold-detection applications. This is confirmed in Table 6 (Static Characteristics) and Section 13.1 of the datasheet. External hysteresis is only required if a specific, non-standard hysteresis value greater than 13 mV is needed.
What package type is used for the NCX2222GMH?
The NCX2222GMH uses the XQFN8 package (SOT902-2): a 1.6 mm × 1.6 mm × 0.5 mm plastic extremely thin quad flat package with 8 terminals and an exposed thermal pad. Package dimensions and land pattern details are provided in Figure 20 and Table 1 of the NXP datasheet. The thermal pad has no electrical function and must remain floating or be connected to VEE.
Can the NCX2222GMH drive an LED directly?
Yes, the NCX2222GMH open-drain outputs can sink up to 5 mA at VCC = 3.0 V (Table 6), sufficient to drive low-current indicator LEDs. For a typical red LED (2.0 V forward voltage, 2 mA desired), a 560 Ω pull-up resistor to 3.3 V yields ~2.3 mA sink current - well within the NCX2222GMH's rated capability. Always verify output voltage drop (VOL ≤ 0.3 V at 5 mA) from Table 6 under actual operating conditions.
Is the NCX2222GMH suitable for automotive applications?
No, the NCX2222GMH is not automotive-qualified. As stated in Section 17.3 of the NXP datasheet, "Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use." It is specified only for industrial temperature range (−40 °C to +85 °C) and lacks AEC-Q100 qualification, extended temperature testing, or automotive-grade reliability screening. Use only in consumer, industrial, or portable equipment.
NCX2222GMH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 8-XFQFN Exposed Pad
- 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-XQFN (1.6x1.6)
NCX2222GMH FAQ
1.How can I place an order for NCX2222GMH through Aetrix?
Please submit a Request for Quotation (RFQ) for NCX2222GMH 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 NCX2222GMH reliable?
The price and inventory of NCX2222GMH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCX2222GMH is usually 5 days.
3.What payment methods are accepted for NCX2222GMH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCX2222GMH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCX2222GMH?
NCX2222GMH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCX2222GMH 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 NCX2222GMH?
For technical support, including NCX2222GMH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCX2222GMH requirements.
6.How does Aetrix verify that NCX2222GMH is sourced from the original manufacturer or authorized distributors?
All NCX2222GMH 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 NCX2222GMH meets industry standards.
7.What is the process for return or replacement of NCX2222GMH?
All NCX2222GMH units undergo pre-shipment inspection (PSI). If there is an issue with NCX2222GMH, 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 NCX2222GMH part is unused and in its original packaging.
Return procedure for NCX2222GMH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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