PCA9452AHNMP - PMIC for i.MX 93, 6 Buck + 5 LDO | NXP
MPN: PCA9452AHNMP ✓ Hoạt độngPCA9452AHNMP Tóm tắt
A power management IC (PMIC) is a highly integrated power subsystem that combines multiple DC-DC converters and linear regulators on one die, replacing a dozen discrete regulator ICs. In the power-management hierarchy, the PMIC sits above individual voltage regulators and below the system controller, offering sequenced power-up, I2C-bus programmability, and protection functions tailored to a specific processor family such as the NXP i.MX application processors.
Key differentiating features include three buck converters that support dynamic voltage scaling (DVS) for the i.MX 93 core rails, allowing the software to trade processor frequency against power consumption; a 400 mA integrated load switch for peripheral power domains; and interrupt-driven supervision via the IRQ_B pin, which asserts LOW on any unmasked interrupt status change and releases HIGH after the application processor reads the INT1 register.
The PCA9452 communicates over an I2C-bus interface supporting Standard-mode (100 kbit/s), Fast-mode (400 kbit/s), and Fast-mode plus (1 Mbit/s) transfers. The I2C address at Power-On Reset is defined in Table 17 of the manufacturer datasheet, enabling multi-PMIC systems without address conflicts. The oscillator driver section supports an external 32.768 kHz crystal for the processor's real-time clock domain, and the 2-channel level translator bridges rail domains of different voltages in the i.MX 93 power tree.
Typical applications include automotive infotainment and cluster displays based on the i.MX 93, extended-industrial HMI panels, edge-AI gateways, and battery-backed telematics units, all of which need precisely sequenced, low-quiescent-power rails. The single-chip approach reduces board area, BOM count, and total power-tree design risk compared with discrete regulator stacks.
A key design consideration is buck inductor selection and layout: the DVS-capable bucks change their target output voltage under software control, so compensation and output capacitance must be chosen per the manufacturer datasheet reference design to keep transient response within processor specification during frequency transitions.
This page synthesizes distributor availability from DigiKey, Mouser, Newark and Octopart, lifecycle status, alternatives guidance, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PCA9452AHNMP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
PCA9452AHNM
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PCA9452AHNMP Tỷ lệ tối đa & tính chất điện
| Product Type | Power Management IC (PMIC) for i.MX 93x processors |
| Buck Regulators | 6 high-efficiency step-down converters |
| LDO Regulators | 5 (11 regulated outputs total) |
| Load Switch | 1 channel, 400 mA |
| Level Translator | 2 channels |
| Crystal Oscillator Driver | 32.768 kHz |
| Dynamic Voltage Scaling | Supported on 3 buck regulators |
| Control Interface | I2C-bus, 2-wire |
| I2C Data Rates | Standard-mode 100 kbit/s, Fast-mode 400 kbit/s, Fast-mode plus 1 Mbit/s |
| Interrupt Output | IRQ_B open-drain, INT1 register driven |
| Qualification | AEC-Q100 Grade 2 |
| Target Markets | Automotive and extended industrial |
| Target Processor | NXP i.MX 93x family |
| Hộp | HVQFN (HN suffix) |
| Kiểu lắp đặt | Surface Mount |
Hướng dẫn cấu hình chân PCA9452AHNMP hvqfn (hn suffix)
Cấu hình chân cho PCA9452AHNMP (hvqfn (hn suffix) gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho PCA9452AHNMP.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
PCA9452AHNMP phù hợp cho 6 Áp dụngs: Automotive Infotainment and Cluster Displays, Extended Industrial HMI and Edge-AI Gateways, Battery-Powered Telematics and Trackers, Automotive ADAS Domain Accessories and Cameras, Medical-adjacent Industrial Monitoring Terminals, Smart Home and Building Control Panels.
Automotive Infotainment and Cluster Displays
The PCA9452AHNMP fits automotive infotainment and cluster head units because it is AEC-Q100 Grade 2 qualified and its rail presets, sequencing, and three DVS-capable bucks are co-designed with the i.MX 93x processor family used in next-generation displays. In a cluster design the bucks power the SoC core, DDR, and I/O rails with dynamic voltage scaling under software control, while the five LDOs supply analog, PHY, and always-on domains such as the 32.768 kHz RTC clock. The 400 mA load switch gates peripheral power for standby current reduction, and the IRQ_B pin gives the SoC interrupt-driven visibility of fault events via the INT1 register. Using I2C Fast-mode plus at 1 Mbit/s, the SoC can re-program rail targets quickly during boot and mode transitions.
Được đề xuất
Extended Industrial HMI and Edge-AI Gateways
Industrial human-machine interfaces and edge-AI gateways built on the i.MX 93 benefit from the PCA9452's extended-industrial qualification and highly integrated rail set. The six high-efficiency bucks convert a 5 V intermediate rail into the processor core, memory, and I/O supplies with minimal external component count, while the five LDOs serve low-noise analog loads such as Ethernet PHYs and touch controllers. The 2-channel level translator cleanly bridges signal domains running at different voltages, and the integrated 32.768 kHz crystal oscillator driver keeps the RTC domain alive during standby. The 400 mA load switch allows firmware to cut power to radios or sensors in low-power states, and I2C control at 400 kbit/s enables runtime supervision of all eleven regulated outputs from the application processor.
Được đề xuất
Battery-Powered Telematics and Trackers
Telematics units and asset trackers based on the i.MX 93 require low standby current, wide temperature tolerance, and disciplined power sequencing, all of which the PCA9452AHNMP provides in one AEC-Q100 Grade 2 chip. The 400 mA load switch isolates GNSS, cellular modem, or sensor clusters so they draw zero current between position fixes, while the processor sleeps on the always-on LDO domain clocked by the integrated 32.768 kHz oscillator driver. Dynamic voltage scaling on three bucks lets software drop core voltage during idle periods, extending battery runtime in vehicles parked for days. The IRQ_B interrupt output, driven from the INT1 register, reports undervoltage or fault events to the host so the firmware can shut down gracefully before the supply collapses.
Được đề xuất
Automotive ADAS Domain Accessories and Cameras
Surround-view camera modules and ADAS accessories built around i.MX 93-class processors use the PCA9452AHNMP to consolidate the power tree in a space-constrained housing. The six bucks deliver high-efficiency conversion for the image processor and memory, and the low-noise LDOs power image sensor analog rails where ripple directly affects picture quality. The 2-channel level translator interfaces the camera's low-voltage logic with vehicle-side signaling, and the I2C bus, running Standard-mode at 100 kbit/s up to Fast-mode plus at 1 Mbit/s, carries rail-status polling. Being automotive-qualified, the PMIC survives under-hood-adjacent temperature profiles, and the interrupt architecture gives the vision stack immediate notice of any unmasked INT1 register status change.
Được đề xuất
Medical-adjacent Industrial Monitoring Terminals
Diagnostic and monitoring terminals that use the industrial-grade variant of the i.MX 93 platform can adopt the PCA9452 where extended-industrial qualification is acceptable. The eleven regulated outputs map directly onto the processor, DDR, security, RF, and analog needs of a connected terminal, reducing BOM count relative to a discrete regulator solution. The 400 mA load switch powers peripherals such as barcode engines or wireless modules only during scan/transmit windows, and the 32.768 kHz crystal driver maintains timestamps for logged events. Software sequencing via I2C at 400 kbit/s guarantees rails appear in the order the processor boot ROM requires, and the IRQ_B pin surfaces any regulator fault so the application can log a service event before data loss.
Được đề xuất
Smart Home and Building Control Panels
Premium smart-home control panels and building automation head units built on the i.MX 93 use the PCA9452AHNMP to power the processor, display, touch, and radio subsystems from a single 5 V input. The three DVS-capable bucks balance display rendering performance against wall-power or PoE energy budgets, the LDOs supply the display timing controller and audio codec with low ripple, and the load switch isolates always-listening voice electronics during deep sleep. The 32.768 kHz oscillator driver keeps wall-clock time through power interruptions, and the 2-channel level translator safely interfaces legacy 3.3 V and 1.8 V peripherals. I2C register-based control lets the panel firmware sequence and supervise all rails without external supervisor ICs, shrinking the board area of wall-mounted products.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PCA9452AHNMP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PCA9452AHNM |
|---|---|---|
| Package | HVQFN (HN suffix) | HVQFN (HN suffix) - same |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Buck Regulators | 6 | 6 |
| LDO Regulators | 5 | 5 |
| Regulated Outputs | 11 | 11 |
| Load Switch | 1 x 400 mA | 1 x 400 mA |
| DVS-capable Bucks | 3 | 3 |
| Qualification | AEC-Q100 Grade 2 | AEC-Q100 Grade 2 |
| Target Processor | i.MX 93x family | i.MX 93x family |
Bảo phân biệt quan trọng
- i.MX 93-specific rail presets and sequencing (vsGeneric programmable PMICs)
- High integration in one AEC-Q100 Grade 2 package (vsDiscrete buck + LDO stack)
- Full I2C supervision with interrupt output (vsFixed-function regulator solutions)
Ghi chú thiết kế
Follow the NXP PCA9452 datasheet reference layout for the HVQFN (HN) package: place the buck converter input capacitors and inductors as close to the respective pins as possible, use short, wide return paths to the exposed thermal pad for power ground, and mount the exposed pad to a grounded copper pour with an adequate via array for heat dissipation. Keep the I2C and IRQ_B traces away from the high-di/dt buck switch nodes to prevent bus glitches; 1 Mbit/s Fast-mode plus timing leaves little noise margin.
The three DVS-capable bucks change output voltage targets under software control during i.MX 93 frequency transitions. Size output capacitance per the datasheet reference design so transient droop during a DVS step stays within processor limits, and ensure inductor saturation current exceeds the peak rail current including derating. Verify that the power-on-reset I2C address (datasheet Table 17) does not conflict with other bus devices in your system.
Do not leave unmasked INT1 register interrupt bits enabled at boot, or IRQ_B will assert LOW immediately and can stall firmware that polls the interrupt line. Initialize the register map over I2C early in boot, mask unused sources, and service INT1 reads to release IRQ_B. Also confirm that the LDO and load-switch loading does not exceed thermal limits at maximum ambient temperature - verify dissipation with the datasheet thermal data before finalizing the design.
Thông tin tuân thủ
AEC-Q100 Grade 2 automotive qualification confirmed per NXP product information. RoHS/REACH/lead-free status not stated in the provided data - verify on the NXP product page for PCA9452AHN.
