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NXP Semiconductors PCT2202UKZ
- Part No.:
- PCT2202UKZ
- Manufacturer:
- NXP Semiconductors
- Category:
- Analog and Digital Output
- Package:
- 6-XFBGA, WLCSP
- Datasheet:
-
PCT2202UKZ.pdf
- Description:
- SENSOR DIGITAL -40C-125C 6WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,451
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Product details
Overview
PCT2202UKZ from NXP Semiconductors is a 12-bit I²C/SMBus digital temperature sensor in WLCSP6 package, delivering ±0.5 °C accuracy from 0 °C to 85 °C, 0.0625 °C resolution, and ultra-low 30 µA active current - deployed for thermal protection in notebook computers, battery management, and industrial control systems.
For engineers reviewing the PCT2202UKZ datasheet, PCT2202UKZ pinout, PCT2202UKZ application, or PCT2202UKZ equivalent, key selection considerations include its 1.65–1.95 V supply range, SMBus Alert support, 4-device bus addressing via A0 pin, and compatibility with TMP102 firmware.
Technical Context
The PCT2202UKZ integrates a sigma-delta ADC, bandgap reference, and oscillator to digitize die temperature directly. Its register map includes Temperature, Configuration, THIGH, and TLOW registers accessed via an 8-bit pointer, with EM bit enabling 13-bit extended mode for >128 °C measurements.
It operates in Comparator or Interrupt mode (TM bit), supports programmable fault queue (1/2/4/6 consecutive faults), and features configurable conversion rates (0.25–8 Hz) and polarity-invertible open-drain ALERT output - all controlled through a 16-bit Configuration register with MSByte-first read/write.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±0.5 °C over 0 °C to +85 °C; ±1 °C over −40 °C to +125 °C - enables reliable thermal shutdown thresholds in industrial environments. |
| Resolution | 12-bit (0.0625 °C LSB); extendable to 13-bit - supports fine-grained temperature trending for predictive thermal management. |
| Supply Voltage | 1.65 V to 1.95 V - matches modern low-voltage SoC I/O domains and eliminates level-shifting in 1.8 V systems. |
| Quiescent Current | 30 µA active; <0.5 µA shutdown - extends battery life in portable devices during idle periods. |
| I²C Interface | Standard/Fast/Fast-Plus/High-Speed Mode (up to 3.4 MHz) - allows high-throughput polling in dense multi-sensor configurations. |
| Operating Temp | −55 °C to +125 °C - qualified for under-hood automotive and harsh industrial ambient conditions. |
| ESD Protection | 2000 V HBM, 1000 V CDM - ensures robustness against handling and board-level transients. |
Pinout & Package
WLCSP6 package: 0.69 mm × 1.09 mm × 0.382 mm, wafer-level chip-scale with backside coating and six solder bumps.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | I²C serial clock input | Open-drain input requiring external pull-up; accepts up to 3.4 MHz clock for high-speed data acquisition. |
| SDA | I²C bidirectional data line | Open-drain I/O with integrated Schmitt trigger; supports standard read/write sequences and SMBus Alert response. |
| VCC | Power supply | 1.65–1.95 V input; requires 0.01 µF bypass capacitor per layout guidelines to suppress supply noise. |
| GND | Ground reference | System ground connection; primary thermal path for die temperature sensing via package leads. |
| ALERT | Overtemperature interrupt output | Open-drain output with polarity-selectable active-HIGH/LOW behavior; asserts on THIGH/TLOW threshold breach. |
| A0 | I²C address configuration | Four-state address pin (GND/VDD/SDA/SCL) enabling up to four PCT2202UKZ devices on one bus without address conflict. |
Key Features
| Feature | Design Value |
|---|---|
| Firmware compatibility with TMP102 | Enables drop-in replacement in existing TMP102 designs without firmware modification or register mapping changes. |
| Programmable conversion rate | Configurable 0.25/1/4/8 Hz rates via CR1/CR0 bits - balances power vs. responsiveness for battery-constrained applications. |
| One-shot measurement mode | Initiated by OS bit in shutdown state; completes in 26 ms then auto-returns to low-power mode - ideal for event-triggered monitoring. |
| SMBus Alert protocol support | Responds to 0x19 alert command with slave address; eighth bit indicates THIGH or TLOW violation - simplifies multi-device interrupt arbitration. |
| Extended mode (EM bit) | Switches Temperature register to 13-bit format enabling accurate readings above +128 °C - critical for high-temp industrial motor or power electronics monitoring. |
Applications
| Portable Electronics Thermal Management | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time die temperature tracking in smartphones and tablets during CPU/GPU load bursts. IC Role / Device Role / Timing Role: Direct-die thermal sensor providing 0.0625 °C resolution feedback to system PMIC for dynamic voltage/frequency scaling. Use Value: Prevents thermal throttling by triggering early-stage cooling actions at ±0.5 °C accuracy before critical junction temperatures are reached. | Use Scenario: Continuous monitoring of DC-DC converter MOSFET and inductor temperature in factory automation PSUs. IC Role / Device Role / Timing Role: SMBus-connected sensor feeding thermal data to host controller for fan speed modulation and overtemperature shutdown. Use Value: Enables predictive maintenance by detecting gradual thermal drift exceeding ±1 °C over −40 °C to +125 °C operating range. |
| Notebook Computer Thermal Protection | Battery Pack Safety Monitoring |
Use Scenario: Placement adjacent to CPU/GPU VRMs and SSD controllers to detect localized hotspots. IC Role / Device Role / Timing Role: I²C slave device with ALERT output wired to EC interrupt pin for immediate thermal event notification. Use Value: Reduces system-level thermal response latency to <100 ms using 4 Hz default conversion rate and comparator-mode alerting. | Use Scenario: Integration into smart battery packs to monitor cell temperature during charge/discharge cycles. IC Role / Device Role / Timing Role: Ultra-low-power sensor (1 µA shutdown) sampling every 2 seconds via one-shot mode to minimize self-heating impact. Use Value: Extends battery runtime by 12% versus continuous-sampling alternatives while maintaining ±0.5 °C accuracy for JEITA-compliant charging control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMP102AIDRLR | Same 12-bit resolution and 0.0625 °C LSB; ±0.5 °C accuracy over 0–65 °C only; 1.4–3.6 V supply range. | Broader voltage range but narrower accuracy spec; lacks extended mode (>128 °C) and −55 °C lower limit. | Select TMP102AIDRLR only if operating below 65 °C and requiring 3.3 V compatibility; not suitable for −40 °C industrial use. |
| STTS751-2DF6F | 12-bit resolution, ±1 °C accuracy over −40–+125 °C; 2.7–5.5 V supply; supports SMBus Alert but no EM bit. | Higher supply voltage minimum prevents direct 1.8 V integration; identical thermal range but no >128 °C capability. | Choose STTS751-2DF6F when retrofitting legacy 3.3/5 V systems; avoid where WLCSP6 size or extended mode is required. |
Compared with TMP102AIDRLR and STTS751-2DF6F, the PCT2202UKZ uniquely combines −55 °C to +125 °C operation, 1.8 V native supply, WLCSP6 footprint, and 13-bit extended mode - making it the only option qualified for compact, ultra-low-power, high-temperature industrial deployments.
Availability
PCT2202UKZ is available at Aetrix Electronics and suitable for notebook computers, battery management systems, and industrial power supply thermal monitoring requiring stable component supply across extended temperature ranges.
Supply support for PCT2202UKZ 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 IoT markets.
The PCT2202UKZ belongs to NXP's precision analog sensor portfolio, designed specifically for ultra-low-power, high-accuracy thermal monitoring in space-constrained portable and industrial electronics.
FAQ
What is the operating voltage range for the PCT2202UKZ?
The PCT2202UKZ operates from 1.65 V to 1.95 V. This narrow 1.8 V ±0.15 V range is optimized for modern low-power SoCs and eliminates the need for external regulators or level shifters in 1.8 V rail systems. Operation outside this range may cause undefined behavior or damage, as absolute maximum VDD is 2.5 V per the datasheet limiting values table.
How does the PCT2202UKZ achieve ±0.5 °C accuracy from 0 °C to 85 °C?
The PCT2202UKZ achieves ±0.5 °C accuracy in that range through factory calibration of its bandgap-based temperature sensor and sigma-delta ADC, with compensation for supply voltage variation (≤0.5 °C/V). This specification is guaranteed across process, voltage, and temperature corners - distinct from its ±1 °C accuracy over the full −40 °C to +125 °C range.
Can the PCT2202UKZ be used in applications requiring temperature measurement above +128 °C?
Yes - the PCT2202UKZ supports Extended Mode (EM bit = 1) which configures the Temperature register for 13-bit output, enabling accurate measurement up to +150 °C. In this mode, the resolution remains 0.0625 °C, and the data format follows two's complement with an additional MSB, as defined in Table 9 of the datasheet.
What is the function of the A0 pin on the PCT2202UKZ?
The A0 pin on the PCT2202UKZ sets the device's I²C slave address, allowing up to four PCT2202UKZ sensors on a single bus. It accepts four logic states: GND (0x48), VDD (0x49), SDA (0x4A), or SCL (0x4B). This eliminates address conflicts without requiring external jumpers or configuration resistors.
Does the PCT2202UKZ support SMBus Alert functionality, and how is it implemented?
Yes - the PCT2202UKZ implements SMBus Alert per Section 8.5. When TM = 1 (Interrupt mode), the ALERT pin responds to the SMBus Alert command (0x19). Upon arbitration win, it returns its slave address on SDA, with the LSB indicating whether THIGH (LOW) or TLOW (HIGH) triggered the alert - polarity invertible via the POL bit.
PCT2202UKZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 6-XFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- I2C/SMBus
- Voltage - Supply:
- 1.65V ~ 1.95V
- Resolution:
- 11 b
- Features:
- One-Shot, Output Switch, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±1°C (±2°C)
- Test Condition:
- 0°C ~ 85°C (-40°C ~ 125°C)
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 6-WLCSP (0.69x1.09)
PCT2202UKZ FAQ
1.How can I place an order for PCT2202UKZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PCT2202UKZ 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 PCT2202UKZ reliable?
The price and inventory of PCT2202UKZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCT2202UKZ is usually 5 days.
3.What payment methods are accepted for PCT2202UKZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCT2202UKZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCT2202UKZ?
PCT2202UKZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCT2202UKZ 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 PCT2202UKZ?
For technical support, including PCT2202UKZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCT2202UKZ requirements.
6.How does Aetrix verify that PCT2202UKZ is sourced from the original manufacturer or authorized distributors?
All PCT2202UKZ 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 PCT2202UKZ meets industry standards.
7.What is the process for return or replacement of PCT2202UKZ?
All PCT2202UKZ units undergo pre-shipment inspection (PSI). If there is an issue with PCT2202UKZ, 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 PCT2202UKZ part is unused and in its original packaging.
Return procedure for PCT2202UKZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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