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NXP Semiconductors PCT2075GV/P110X
- Part No.:
- PCT2075GV/P110X
- Manufacturer:
- NXP Semiconductors
- Category:
- Analog and Digital Output
- Package:
- SC-74, SOT-457
- Datasheet:
-
PCT2075GV/P110X.pdf
- Description:
- DIGITAL TEMP SENSOR & THERMAL WA
- Quantity:
- Payment:
- Shipping:
Inventory:4,115
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Product details
Overview
PCT2075GV/P110X from NXP Semiconductors is a digital temperature sensor and thermal watchdog IC with ±1 °C accuracy from −25 °C to +100 °C, 0.125 °C resolution via 11-bit Sigma-Delta ADC, I²C-bus Fast-mode Plus (1 MHz) interface, and programmable overtemperature shutdown at 110 °C / hysteresis at 105 °C - deployed in industrial controllers for autonomous thermal protection.
For engineers reviewing the PCT2075GV/P110X datasheet, PCT2075GV/P110X pinout, PCT2075GV/P110X application, or PCT2075GV/P110X equivalent, key selection considerations include its TSOP6 package, 6-pin I²C address configuration (A0 only), OS open-drain output behavior in comparator mode, and factory-programmed setpoints enabling drop-in replacement in fan control and power supply thermal monitoring circuits.
Technical Context
The PCT2075GV/P110X integrates an on-chip band gap temperature sensor with 11-bit Sigma-Delta A-to-D conversion, delivering 0.125 °C resolution and storing results in a read-only Temp register updated every 100 ms (default Tidle). Its thermal watchdog logic compares Temp against factory-programmed Tos = 110 °C and Thyst = 105 °C using 9-bit two's complement arithmetic.
Operating in normal or shutdown mode, it supports I²C Fast-mode Plus (1 MHz, 30 mA SDA drive) with SMBus time-out (25–35 ms), overvoltage-tolerant SDA/SCL inputs (to 5.5 V), and OS output configurable as active-HIGH/LOW with programmable fault queue (1–6 consecutive faults). The TSOP6 variant uses only A0 for address selection, enabling up to three devices per bus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±1 °C max. from −25 °C to +100 °C; ±2 °C max. from −55 °C to +125 °C - ensures reliable thermal trip thresholds in industrial ambient conditions. |
| Resolution | 0.125 °C (11-bit two's complement Temp register) - enables precise detection of thermal drift in power converters and microcontrollers. |
| Overtemp Setpoints | Tos = 110 °C, Thyst = 105 °C (factory-programmed, non-volatile) - provides fixed hysteresis for stable fan-on/fan-off cycling without host intervention. |
| I²C Interface | Fm+ compliant, 1 MHz max., 30 mA SDA drive - supports high node count buses with robust noise immunity and backward compatibility to Standard/Fast-mode. |
| Supply Range | 2.7 V to 5.5 V - interoperates with 3.3 V and 5 V logic domains without level shifters. |
| Shutdown Current | <1.0 μA - enables battery-backed thermal monitoring in always-on subsystems. |
| Package | TSOP6 (SOT1353-1), 6-pin, 1.1 mm × 2.9 mm × 1.05 mm - fits space-constrained PCB layouts in motor drives and embedded controllers. |
Pinout & Package
TSOP6 package (SOT1353-1): 6-pin, surface-mount, exposed pad not present. Pin 1 (A0) sets LSB of I²C address; pins 2–6 are GND, VCC, SCL, OS, and SDA respectively. Compatible with reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | I²C address input | Defines device address bit 0; sampled at power-up only - allows up to three PCT2075GV variants on one bus. |
| GND | Ground reference | System ground connection point; required for accurate temperature measurement and OS output referencing. |
| VCC | Power supply | 2.7–5.5 V supply input; powers internal band gap sensor, ADC, and I²C interface - decoupling capacitor recommended near pin. |
| SCL | I²C clock input | Open-drain compatible; accepts 0–5.5 V logic levels - eliminates need for external level translation in mixed-voltage systems. |
| OS | Overtemperature shutdown output | Open-drain, active-LOW by default; asserts when Temp ≥ 110 °C and releases when Temp ≤ 105 °C - directly drives MOSFET gates or optocouplers for system shutdown. |
| SDA | I²C bidirectional data line | Open-drain, 5.5 V tolerant; supports Fm+ timing and multi-master arbitration - enables real-time temperature polling without interrupt latency. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-programmed thermal thresholds | Tos = 110 °C / Thyst = 105 °C stored in non-volatile registers - eliminates host firmware initialization and guarantees consistent trip points across production batches. |
| 11-bit temperature resolution | 0.125 °C granularity enables detection of sub-degree thermal gradients in CPU voltage regulator modules and FPGA power rails. |
| I²C Fast-mode Plus support | 1 MHz operation with 30 mA SDA drive strength - permits >20 devices on a single bus segment while maintaining signal integrity in noisy industrial environments. |
| Programmable fault queue | Configurable 1–6 consecutive overtemperature events required before OS assertion - prevents false trips due to transient spikes in motor drive or power supply applications. |
| Stand-alone thermostat operation | Power-up defaults to normal mode, OS comparator mode, active-LOW OS - enables immediate thermal protection without host controller boot sequence dependency. |
Applications
| Industrial Motor Drives | Programmable Logic Controllers |
|---|---|
|
Use Scenario: Real-time winding temperature monitoring in 3-phase AC inverters to prevent insulation breakdown. IC Role / Device Role / Timing Role: Thermal watchdog providing autonomous overtemperature shutdown via OS output to gate driver disable circuitry. Use Value: Factory-set Tos = 110 °C ensures immediate response to thermal runaway without firmware overhead, reducing risk of catastrophic failure during overload conditions. |
Use Scenario: Ambient temperature supervision inside DIN-rail mounted PLC enclosures operating in unconditioned factory environments. IC Role / Device Role / Timing Role: Digital temperature sensor feeding host MCU via I²C for predictive maintenance logging and alarm generation. Use Value: 0.125 °C resolution enables early detection of gradual enclosure heating trends, supporting proactive cooling fan scheduling before critical thresholds are reached. |
| Industrial Power Supplies | Embedded Computing Modules |
|
Use Scenario: Thermal protection of DC-DC converter stages in 48 V telecom rectifiers where ambient temperature exceeds 70 °C. IC Role / Device Role / Timing Role: Stand-alone thermostat asserting OS output to latch off primary-side MOSFETs upon sustained overtemperature. Use Value: Shutdown current <1.0 μA allows continuous monitoring during standby, preserving battery backup runtime in redundant PSU designs. |
Use Scenario: Junction temperature tracking of SoC or FPGA in ruggedized edge computing units deployed in transportation infrastructure. IC Role / Device Role / Timing Role: High-resolution temperature sensor interfacing to host processor via I²C for dynamic frequency scaling and thermal throttling. Use Value: 11-bit Temp register updates every 100 ms with no conversion interruption during reads - ensures uninterrupted thermal telemetry during intensive compute workloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor and thermal watchdog applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM75BIMM/NOPB | ±2 °C accuracy (−25 °C to +100 °C), 9-bit resolution (0.5 °C), no programmable Tidle, SO-8 only. | Lacks factory-programmed 110 °C trip point; requires host configuration of setpoints; lower resolution limits thermal drift analysis. | Select LM75BIMM/NOPB only if legacy LM75 pin compatibility and cost sensitivity outweigh resolution and preprogrammed threshold requirements. |
| STLM20DD9F | Analog output (10 mV/°C), ±1.5 °C accuracy, no digital interface or OS output, SOT-23-5. | Requires external ADC and comparator circuitry to replicate PCT2075GV/P110X watchdog functionality - increases BOM count and layout area. | Choose STLM20DD9F only when analog integration into existing voltage-monitoring infrastructure is preferred over digital autonomy. |
Compared with LM75BIMM/NOPB and STLM20DD9F, the PCT2075GV/P110X delivers higher resolution, guaranteed factory-set thresholds, and integrated watchdog logic - reducing firmware dependencies and PCB complexity in industrial thermal management systems.
Availability
PCT2075GV/P110X is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers, and embedded computing modules requiring stable component supply with guaranteed thermal trip consistency across production lots.
Supply support for PCT2075GV/P110X 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 applications.
The PCT2075GV/P110X belongs to NXP's precision analog sensor portfolio, designed specifically for autonomous thermal monitoring in harsh industrial environments where reliability, accuracy, and minimal host intervention are critical.
FAQ
What is the factory-programmed overtemperature shutdown threshold for PCT2075GV/P110X?
The PCT2075GV/P110X is manufactured with Tos = 110 °C and Thyst = 105 °C permanently programmed into its Tos and Thyst registers. These values are non-volatile and cannot be altered in the field - ensuring consistent thermal trip behavior across all units of PCT2075GV/P110X without host configuration.
Does PCT2075GV/P110X support standard I²C or only Fast-mode Plus?
PCT2075GV/P110X supports I²C Fast-mode Plus (up to 1 MHz) with 30 mA SDA drive capability, but remains fully backward compatible with Standard-mode (100 kHz) and Fast-mode (400 kHz) controllers. Its SDA and SCL inputs tolerate up to 5.5 V regardless of VCC, simplifying integration into mixed-voltage systems.
How does the OS output behave on power-up for PCT2075GV/P110X?
At power-up, PCT2075GV/P110X initializes in normal operation mode with OS comparator mode enabled, OS active-LOW, and fault queue = 1. The OS output remains inactive until the first temperature conversion completes (~28 ms) and Temp ≥ 110 °C - then asserts LOW and releases only when Temp ≤ 105 °C.
Can PCT2075GV/P110X be used with only two I²C pull-up resistors despite its TSOP6 package?
Yes - PCT2075GV/P110X requires only two external pull-up resistors (typically 1.5–10 kΩ) on SDA and SCL lines. Its open-drain outputs and overvoltage-tolerant inputs eliminate the need for additional level-shifting circuitry, even when interfacing with 5 V controllers while operating from a 3.3 V supply.
Is the temperature resolution of PCT2075GV/P110X fixed or configurable?
PCT2075GV/P110X provides fixed 11-bit temperature resolution (0.125 °C) in its Temp register. While the device supports reading only the MSByte for 1 °C resolution, the full 11-bit value is always available and required for precision applications like thermal drift compensation in RF power amplifiers or precision analog front-ends.
PCT2075GV/P110X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -55°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- I2C/SMBus
- Voltage - Supply:
- 2.7V ~ 5.5V
- Resolution:
- 11 b
- Features:
- Output Switch, Programmable Limit, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±1°C (±2°C)
- Test Condition:
- -25°C ~ 100°C (-55°C ~ 125°C)
- Operating Temperature:
- -55°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 6-TSOP
PCT2075GV/P110X FAQ
1.How can I place an order for PCT2075GV/P110X through Aetrix?
Please submit a Request for Quotation (RFQ) for PCT2075GV/P110X 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 PCT2075GV/P110X reliable?
The price and inventory of PCT2075GV/P110X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCT2075GV/P110X is usually 5 days.
3.What payment methods are accepted for PCT2075GV/P110X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCT2075GV/P110X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCT2075GV/P110X?
PCT2075GV/P110X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCT2075GV/P110X 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 PCT2075GV/P110X?
For technical support, including PCT2075GV/P110X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCT2075GV/P110X requirements.
6.How does Aetrix verify that PCT2075GV/P110X is sourced from the original manufacturer or authorized distributors?
All PCT2075GV/P110X 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 PCT2075GV/P110X meets industry standards.
7.What is the process for return or replacement of PCT2075GV/P110X?
All PCT2075GV/P110X units undergo pre-shipment inspection (PSI). If there is an issue with PCT2075GV/P110X, 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 PCT2075GV/P110X part is unused and in its original packaging.
Return procedure for PCT2075GV/P110X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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