ADP1031ACPZ-2 - Isolated PMU with 7 Digital Isolators | Analog Devices
料号： ADP1031ACPZ-2 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.76 | $276.00 |
| 500 | $2.42 | $1,210.00 |
| 1,000 | $2.08 | $2,080.00 |
ADP1031ACPZ-2 概述
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.
直接替换替代料： ADP1031ACPZ-2 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADP1031ACPZ-2 （相同外形与封装尺寸）.
快速对比工具——选择替代料号进行并排对比：
ADP1031ACPZ-2-R7
✅ 直接替换📋 参考替代料（不在目录中）
ADP1031ACPZ-1
✅ 直接替换✓ 有现货
$2.08 / 个
查看数据手册 →ADP1031ACPZ-4
✅ 直接替换📋 参考替代料（不在目录中）
ADP1031ACPZ-3-R7
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADP1031ACPZ-5
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ADP1031ACPZ-2 最大额定值与电气特性
| Output Voltage (Buck) | 5.0 V |
| Number of Digital Isolators | 7 |
| SPI Isolator Channels | 4 |
| 数据速率 | 100 kbps |
| 工作温度范围 | -40°C to +125°C |
| 封装 | 41-LFCSP (9x7 mm) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Product Category | Power Management Specialized - PMIC |
ADP1031ACPZ-2 引脚配置
| 引脚 1 | VIN — Input supply voltage |
| 引脚 2 | GND — Ground |
| 引脚 3 | VOUT1 — Flyback output |
| 引脚 4 | VOUT2 — Inverting output |
| 引脚 5 | VOUT3 — Buck output (5.0V) |
| 引脚 6 | ISO_GND — Isolated ground |
| 引脚 7 | SPI_CLK — SPI clock input |
| 引脚 8 | SPI_MOSI — SPI data input |
| 引脚 9 | SPI_MISO — SPI data output |
| 引脚 10 | SPI_CS — SPI chip select |
| 引脚 11 | GPIO1 — General-purpose digital isolator channel 1 |
| 引脚 12 | GPIO2 — General-purpose digital isolator channel 2 |
| 引脚 13 | GPIO3 — General-purpose digital isolator channel 3 |
| 引脚 14 | EN — Enable pin |
| 引脚 15 | NC — No connect |
典型应用
ADP1031ACPZ-2 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： ADP1031ACPZ-2 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Integrated isolated PMU with three power rails and seven digital isolators （对比 ADP1031ACPZ-1)
- Tape-and-reel packaging option available （对比 ADP1031ACPZ-2 (tray))
- High-reliability industrial temperature range （对比 ADP1031ACPZ-4)
设计说明
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.
合规信息
RoHS compliance indicated by distributor listings. Other compliance data not explicitly provided in the verified data.
