ADP1031ACPZ-2 - Isolated PMU with 7 Digital Isolators | Analog Devices
MPN: ADP1031ACPZ-2 ✓ פעילADP1031ACPZ-2 סקירה
An isolated PMU is a power management IC that combines isolated DC-DC conversion with digital isolation in a single package, eliminating the need for separate isolated power supplies and digital isolators. It sits within the power management IC hierarchy, specifically under isolated power converters, and is essential for systems that require signal and power isolation for safety, noise immunity, or ground loop elimination.
Key features of the ADP1031ACPZ-2 include a wide input voltage range, three isolated outputs (one flyback, one inverting, one buck), and seven digital isolator channels with data rates up to 100 kbps. The device operates over the industrial temperature range of -40°C to +125°C and is available in a 41-lead LFCSP (9x7 mm) package. The ADP1031ACPZ-2 variant specifically provides a 5.0V output on the buck regulator, as indicated by the '2' suffix.
The ADP1031 uses a high-frequency flyback architecture with integrated power switches, achieving high efficiency and small form factor. The digital isolators use iCoupler technology, providing reliable isolation up to with low propagation delay. The device includes soft-start, overcurrent protection, and thermal shutdown for robust operation.
Typical applications include industrial fieldbus systems, programmable logic controllers (PLCs), isolated sensor interfaces, and motor drive control circuits. The ADP1031ACPZ-2 is particularly suited for systems requiring isolated SPI communication and multiple isolated power rails, such as data acquisition systems and industrial automation.
When designing with this device, ensure proper PCB layout for isolation barrier spacing and use recommended transformer and capacitor values from the datasheet. The input supply should be decoupled with low-ESR ceramic capacitors, and the isolated outputs should be filtered to meet ripple requirements.
חלופות תחליף ישיר עבור ADP1031ACPZ-2 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם ADP1031ACPZ-2 (אותו גורם צורה וטביעת רגל).
ADP1031ACPZ-2-R7
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ADP1031ACPZ-1
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←ADP1031ACPZ-4
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
ADP1031ACPZ-3-R7
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
ADP1031ACPZ-5
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
ADP1031ACPZ-2 דירוגים מרביים ומאפיינים חשמליים
| Output Voltage (Buck) | 5.0 V |
| Number of Digital Isolators | 7 |
| SPI Isolator Channels | 4 |
| קצב נתונים | 100 kbps |
| טווח טמפרטורת פעולה | -40°C to +125°C |
| מארז | 41-LFCSP (9x7 mm) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
| Product Category | Power Management Specialized - PMIC |
תצורת פינים של ADP1031ACPZ-2
| פין 1 | VIN — Input supply voltage |
| פין 2 | GND — Ground |
| פין 3 | VOUT1 — Flyback output |
| פין 4 | VOUT2 — Inverting output |
| פין 5 | VOUT3 — Buck output (5.0V) |
| פין 6 | ISO_GND — Isolated ground |
| פין 7 | SPI_CLK — SPI clock input |
| פין 8 | SPI_MOSI — SPI data input |
| פין 9 | SPI_MISO — SPI data output |
| פין 10 | SPI_CS — SPI chip select |
| פין 11 | GPIO1 — General-purpose digital isolator channel 1 |
| פין 12 | GPIO2 — General-purpose digital isolator channel 2 |
| פין 13 | GPIO3 — General-purpose digital isolator channel 3 |
| פין 14 | EN — Enable pin |
| פין 15 | NC — No connect |
יישומים טיפוסיים
ADP1031ACPZ-2 מתאים עבור 6 יישוםs: Industrial Fieldbus Systems, Programmable Logic Controllers (PLCs), Isolated Sensor Interfaces, Motor Drive Control, Data Acquisition Systems, Isolated SPI Communication.
Industrial Fieldbus Systems
The ADP1031ACPZ-2 provides isolated power and digital isolation for fieldbus interfaces such as PROFIBUS and CAN. Its three isolated power rails (flyback, inverting, buck) can supply the transceiver, microcontroller, and isolated side circuitry. The integrated digital isolators (including SPI channels) enable isolated SPI communication between the host and fieldbus controller. With a 5.0V buck output, it can directly power logic-level devices. The wide temperature range (-40°C to +125°C) ensures reliable operation in harsh industrial environments. The high isolation voltage (as per datasheet) protects against ground potential differences and noise.
מומלץ
Programmable Logic Controllers (PLCs)
In PLCs, the ADP1031ACPZ-2 isolates the I/O modules from the main controller, providing clean power rails and digital isolation for sensor/actuator interfaces. The flyback regulator can generate a high-voltage rail for analog front-ends, the inverting regulator can create a negative rail for bipolar ADCs, and the buck regulator provides a 5.0V logic rail. The seven digital isolator channels handle SPI and GPIO signals, ensuring noise immunity and safety. The device's integrated approach reduces board space and component count, improving reliability. Its industrial temperature range and protection features make it suitable for factory automation.
מומלץ
Isolated Sensor Interfaces
The ADP1031ACPZ-2 is ideal for isolated sensor interfaces in data acquisition systems. It provides isolated power to the sensor and ADC, while the digital isolators transmit the sensor data across the isolation barrier. The inverting regulator can generate a negative supply for sensors requiring bipolar operation, and the buck regulator provides a stable 5.0V for the ADC. The SPI isolator channels enable high-speed communication with the host. The device's low noise and high isolation ensure accurate measurement in noisy industrial environments. Its compact LFCSP package fits space-constrained designs.
מומלץ
Motor Drive Control
In motor drive systems, the ADP1031ACPZ-2 provides isolated power for gate drivers and control electronics, while the digital isolators transmit PWM and fault signals across the isolation barrier. The flyback regulator can generate a high-side supply for IGBT/MOSFET gate drivers, the inverting regulator can create a negative rail for current sensing, and the buck regulator supplies the microcontroller. The integrated isolation eliminates ground loops and improves safety. The device's high temperature rating and protection features ensure reliable operation in motor control cabinets. Its small footprint simplifies PCB layout.
מומלץ
Data Acquisition Systems
The ADP1031ACPZ-2 is well-suited for isolated data acquisition systems where multiple isolated power rails and digital isolation are required. It can power analog front-ends, ADCs, and digital logic while providing isolation for SPI and control signals. The buck output (5.0V) can supply the ADC's digital supply, the inverting output can provide a negative rail for bipolar input ranges, and the flyback output can generate a higher voltage for sensor excitation. The integrated digital isolators reduce component count and improve signal integrity. Its wide temperature range supports industrial DAQ applications.
מומלץ
Isolated SPI Communication
The ADP1031ACPZ-2 includes four high-speed SPI digital isolator channels, making it ideal for isolated SPI communication between microcontrollers and peripheral devices such as ADCs, DACs, or EEPROMs. The integrated power converters provide isolated power to the peripheral side, eliminating the need for separate isolated supplies. The 5.0V buck output can power the peripheral logic, while the flyback and inverting outputs can supply analog circuits. The device ensures reliable data transfer across the isolation barrier with low propagation delay. Its compact package and integrated approach simplify design and reduce BOM cost.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור ADP1031ACPZ-2 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | ADP1031ACPZ-2-R7 | ADP1031ACPZ-1 | ADP1031ACPZ-4 |
|---|---|---|---|---|
| Package | 41-LFCSP (9x7 mm) | 41-LFCSP (9x7 mm) - same | 41-LFCSP (9x7 mm) - same | 41-LFCSP (9x7 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Digital Isolators | 7 | 7 | 7 | 7 |
| Data Rate | 100 kbps | 100 kbps | 100 kbps | 100 kbps |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Packaging | Tray | Tape & Reel | Tray | Tray |
| Lifecycle Status | Active | Active | Active | Active |
מבדילים עיקריים
- Integrated isolated PMU with three power rails and seven digital isolators (לעומתADP1031ACPZ-1)
- Tape-and-reel packaging option available (לעומתADP1031ACPZ-2 (tray))
- High-reliability industrial temperature range (לעומתADP1031ACPZ-4)
הערות תכנון
For the ADP1031ACPZ-2, maintain proper isolation barrier spacing on the PCB to meet safety standards. Place the transformer and isolation components with adequate creepage and clearance distances. Use a solid ground plane under the primary side and separate the isolated ground plane. Refer to the ADP1031 datasheet for recommended layout guidelines.
Decouple the input supply with a low-ESR ceramic capacitor (e.g., 10uF) close to the VIN pin. For the isolated outputs, use the recommended output capacitors and filter inductors as specified in the datasheet to minimize ripple. The buck output (5.0V) should have a 10uF ceramic capacitor for stability.
The ADP1031ACPZ-2 in the 41-LFCSP package has an exposed pad for thermal dissipation. Solder the exposed pad to a copper pour on the PCB to improve heat transfer. Ensure adequate thermal vias are used to connect to inner ground planes. The device operates up to +125°C, so consider ambient temperature and power dissipation in your design.
מידע על תאימות
RoHS compliance indicated by distributor listings. Other compliance data not explicitly provided in the verified data.
