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NXP Semiconductors PCA9452AHNMP
- Part No.:
- PCA9452AHNMP
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 56-VFQFN Exposed Pad
- Datasheet:
-
PCA9452AHNMP.pdf
- Description:
- PCA9452AHNMP
- Quantity:
- Payment:
- Shipping:
Inventory:1,106
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Product details
Overview
PCA9452AHNMP from NXP Semiconductors is an AEC-Q100 Grade 2 automotive Power Management IC (PMIC) engineered exclusively for the i.MX 93x application processor. It integrates six step-down regulators (including a 6 A dual-phase buck), five LDOs, a 400 mA load switch, 2-channel I²C level translator, and a 32.768 kHz crystal oscillator driver - all operating across –40 °C to +105 °C. It powers critical SoC rails (VDD_SOC, VDDQ_DDR, NVCC_1V8), DRAM, and SD card in automotive infotainment systems.
For engineers reviewing the PCA9452AHNMP datasheet, PCA9452AHNMP pinout, PCA9452AHNMP application, or PCA9452AHNMP equivalent, key selection considerations include DVS-capable buck regulation for i.MX 93x dynamic power states, remote sense compensation on BUCK1/BUCK2/BUCK3, SNVS-mode always-on LDO1 for secure non-volatile storage, and Fm+ 1 MHz I²C control with integrated level translation.
Technical Context
The PCA9452AHNMP implements a hierarchical power sequencing architecture with eight defined modes (OFF, READY, SNVS, RUN, STANDBY, PWRDN, PWRUP, FAULT_SD), controlled via PMIC_ON_REQ and PMIC_STBY_REQ inputs. Its dual-phase BUCK1/BUCK3 configuration delivers 6 A at 0.85 V with 12.5 mV output steps and supports remote voltage sensing to compensate for IR drop to the i.MX 93x SOC.
Regulator control is fully programmable over Fm+ 1 MHz I²C, with dedicated registers for DVS (BUCK123_DVS), reset behavior (RESET_CTRL, SW_RST), fault masking (VRFLT1_MASK), and power-up timing (PWR_CTRL). The integrated 2-channel bidirectional level translator operates between 1.8 V (VINT domain) and 3.3 V (SWIN domain), enabling direct I²C interface to SD card controllers without external translators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Buck Regulators | Six high-efficiency DC-DC converters: BUCK1/BUCK3 dual-phase (6 A), BUCK2 (3 A), BUCK4 (3 A), BUCK5/BUCK6 (2 A each) |
| LDO Outputs | Five linear regulators: LDO1 (10 mA, always-on SNVS rail), LDO2 (10 mA), LDO3 (300 mA), LDO4 (200 mA), LDO5 (150 mA, 1.8 V/3.3 V selectable) |
| Load Switch | 400 mA SD card power switch with built-in active discharge resistor and GPIO/I²C enable (SW_EN) |
| Oscillator Driver | 32.768 kHz crystal oscillator driver with buffered CMOS CLK_32K_OUT output referenced to LDO1 |
| I²C Interface | Fm+ (Fast-mode Plus) compliant, 1 MHz max clock rate, with integrated 2-channel bidirectional level translator (SDAL/SCLL ↔ SDAH/SCLH) |
| Operating Range | –40 °C to +105 °C ambient temperature; AEC-Q100 Grade 2 qualified; VSYS input range supports automotive battery transients |
| Package | HVQFN56, 8 mm × 8 mm, 0.5 mm pitch, thermally enhanced exposed pad (EP) |
Pinout & Package
HVQFN56 package (SOT684-30(DD)), 8 mm × 8 mm body, 0.5 mm pitch, 0.85 mm height, with exposed thermal pad (EP) connected internally to all PGND nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LDO1 (Pin 3) | Always-on SNVS power rail | Supplies Secure Non-Volatile Storage (SNVS) domain; remains active as long as INL1 is valid; enables RTC_RESET_B and CLK_32K_OUT |
| BUCK1/BUCK3 LX1/LX3 (Pins 36–37, 31–32) | Dual-phase switching node | Joint output of BUCK1 and BUCK3 in dual-phase mode; delivers 6 A at 0.85 V to VDD_SOC with remote sense (R_SNSP1/R_SNSP3_CFG) |
| SDAH/SCLH (Pins 24–25) | High-side I²C interface | 3.3 V domain I²C signals for SD card controller; referenced to SWIN; paired with SDAL/SCLL (1.8 V domain) |
| PMIC_ON_REQ (Pin 39) | Power-on request input | Active-high signal initiating full power-up sequence (PWRUP); masked in SNVS until RTC_RESET_B release |
| IRQ_B (Pin 13) | Interrupt output | Open-drain indicator for regulator faults, thermal warnings, or status events; requires external pull-up |
| EP | Thermal ground / PGND common | Exposed pad tied internally to all buck PGND nodes; must be soldered to PCB thermal plane for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase BUCK1/BUCK3 | 6 A combined output at 0.85 V with interleaved operation reduces input/output ripple and eases thermal design for i.MX 93x VDD_SOC rail |
| Remote Sense Compensation | Supported on BUCK1, BUCK2, and BUCK3 via R_SNSP1/R_SNSP2/R_SNSP3_CFG pins to maintain accurate output voltage at load point under varying current |
| Configurable DVS | Dynamic Voltage Scaling on BUCK1/BUCK2/BUCK3 enables runtime voltage adjustment between RUN and STANDBY modes via PMIC_STBY_REQ or register writes |
| Integrated Level Translator | 2-channel auto-direction-sensing transceiver eliminates need for external I²C level shifters between 1.8 V (SoC) and 3.3 V (SD card) domains |
| SNVS-Mode Always-On LDO | LDO1 remains powered during all modes when INL1 is valid, ensuring continuous supply to security-critical SNVS logic and RTC functions |
| Comprehensive Fault Handling | Dedicated VRFLT1/VRFLT2 status/mask registers, thermal shutdown detection (tFLT_THSD = 120 µs), and configurable fault response (warm/cold reset) |
Applications
| Automotive Infotainment Head Unit | Heads-Up Display (HUD) Control Module |
|---|---|
Use Scenario: Central multimedia system powering i.MX 93x SoC, DDR memory, audio codecs, and touch controller. IC Role / Device Role / Timing Role: Primary PMIC delivering sequenced, regulated rails (VDD_SOC, VDDQ_DDR, NVCC_1V8, NVCC_3V3) with DVS support for CPU frequency scaling. Use Value: Enables low-power standby states while maintaining SNVS integrity; dual-phase BUCK1/BUCK3 ensures stable 0.85 V at up to 6 A for high-performance SoC operation. |
Use Scenario: Compact HUD unit requiring compact power solution for i.MX 93x, display driver, and sensor interfaces. IC Role / Device Role / Timing Role: Single-chip power source managing tight thermal envelope and fast wake-from-standby (<20 ms POR_B assertion). Use Value: Integrated 32.768 kHz oscillator drives HUD real-time clock; LDO5's SD_VSEL pin allows software-selectable 1.8 V/3.3 V for flexible peripheral interfacing. |
| Automotive GPS Navigation System | In-Vehicle Monitoring System |
Use Scenario: GPS receiver module with GNSS baseband processor, RF front-end, and SD card logging. IC Role / Device Role / Timing Role: Supplies core SoC, memory, and SD card via BUCK4 (3.3 V) and load switch (SWIN/SWOUT), with level-translated I²C for sensor fusion. Use Value: 400 mA load switch with internal discharge resistor safely powers SD card; level translator enables direct I²C connection to 1.8 V sensors without external components. |
Use Scenario: Cabin camera or ADAS sensor hub using i.MX 93x for image processing and local AI inference. IC Role / Device Role / Timing Role: Manages multi-rail power delivery under automotive temperature extremes (–40 °C to +105 °C) with AEC-Q100 Grade 2 reliability. Use Value: Thermal shutdown protection (TJSHDN) and fault-latched VRFLT registers ensure fail-safe operation; IRQ_B pin provides immediate interrupt signaling for system-level error handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PCA9450A | Predecessor PMIC for i.MX 8 series; lacks dual-phase BUCK1/BUCK3, no integrated 32.768 kHz oscillator driver, smaller LDO count (4 vs 5) | Designed for i.MX 8M Mini/Plus; not validated for i.MX 93x power sequencing or DVS requirements | Select PCA9452AHNMP for new i.MX 93x designs requiring SNVS-mode LDO1, dual-phase capability, and integrated crystal driver. |
| MPQ4436-AEC1 | Standalone 6 A automotive buck converter (Monolithic); no LDOs, no level translator, no I²C interface, no PMIC sequencing logic | Used as discrete high-current rail generator only; requires companion PMIC or discrete LDOs for full SoC support | PCA9452AHNMP provides complete single-chip SoC power solution; MPQ4436-AEC1 is suitable only as supplemental high-current regulator. |
Compared with PCA9450A and MPQ4436-AEC1, the PCA9452AHNMP uniquely integrates dual-phase regulation, SNVS-mode always-on LDO1, and I²C-level translation - eliminating four external components and reducing BOM count while meeting i.MX 93x-specific sequencing and automotive qualification requirements.
Availability
PCA9452AHNMP is available at Aetrix Electronics and suitable for automotive infotainment, heads-up display (HUD), and GPS navigation systems requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.
Supply support for PCA9452AHNMP 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 leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in ARM-based application processors and power management.
The PCA9452AHNMP belongs to NXP's i.MX 93x-specific PMIC product line, designed to deliver tightly integrated, AEC-Q100-compliant power sequencing, dynamic voltage scaling, and functional safety features required by next-generation automotive edge computing platforms.
FAQ
What is the primary application target for the PCA9452AHNMP?
The PCA9452AHNMP is specifically engineered for the NXP i.MX 93x application processor family in automotive environments. It delivers all required power rails - including dual-phase 6 A VDD_SOC, 3 A VDDQ_DDR, 2 A NVCC_1V8, and 3.3 V NVCC_3V3 - with precise sequencing, dynamic voltage scaling, and AEC-Q100 Grade 2 qualification. Its integrated features eliminate the need for discrete regulators and translators in i.MX 93x reference designs.
Does the PCA9452AHNMP support dynamic voltage scaling (DVS)?
Yes, the PCA9452AHNMP supports DVS on BUCK1, BUCK2, and BUCK3. Voltage levels are programmable via I²C registers (BUCKxOUT_DVS0/BUCKxOUT_DVS1) and can be switched dynamically based on PMIC_STBY_REQ assertion or software command. This enables optimized power consumption during i.MX 93x RUN and STANDBY modes without hardware changes.
How does the PCA9452AHNMP handle power sequencing for the i.MX 93x processor?
The PCA9452AHNMP executes a pre-defined, register-configurable power-up sequence: BUCK1/BUCK3 first (0.85 V), followed by LDO4, LDO3, BUCK5, BUCK6, BUCK2, BUCK4, and LDO5 - with 2 ms inter-rail delays (tSTEP) and POR_B release after final POK. Sequence timing and rail enable order are fixed per i.MX 93x requirements and cannot be reordered externally.
What is the function of the LDO1 rail in the PCA9452AHNMP?
LDO1 in the PCA9452AHNMP is a 10 mA, always-on regulator supplying the Secure Non-Volatile Storage (SNVS) domain. It remains active whenever INL1 input is valid, powering RTC logic, CLK_32K_OUT, and RTC_RESET_B. Its continuous operation ensures cryptographic key retention and real-time clock functionality even during deep sleep or system standby states.
Can the PCA9452AHNMP drive a 32.768 kHz crystal directly?
Yes, the PCA9452AHNMP includes a dedicated 32.768 kHz crystal oscillator driver with XTAL_IN (Pin 10) and XTAL_OUT (Pin 11) pins. It supports external crystal connection and provides a buffered CMOS CLK_32K_OUT (Pin 7) referenced to LDO1. When no crystal is used, XTAL_IN must be tied to GND and XTAL_OUT left floating.
PCA9452AHNMP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Processor
- Current - Supply:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-HVQFN-EP (8x8)
PCA9452AHNMP FAQ
1.How can I place an order for PCA9452AHNMP through Aetrix?
Please submit a Request for Quotation (RFQ) for PCA9452AHNMP 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 PCA9452AHNMP reliable?
The price and inventory of PCA9452AHNMP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PCA9452AHNMP is usually 5 days.
3.What payment methods are accepted for PCA9452AHNMP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PCA9452AHNMP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PCA9452AHNMP?
PCA9452AHNMP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PCA9452AHNMP 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 PCA9452AHNMP?
For technical support, including PCA9452AHNMP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PCA9452AHNMP requirements.
6.How does Aetrix verify that PCA9452AHNMP is sourced from the original manufacturer or authorized distributors?
All PCA9452AHNMP 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 PCA9452AHNMP meets industry standards.
7.What is the process for return or replacement of PCA9452AHNMP?
All PCA9452AHNMP units undergo pre-shipment inspection (PSI). If there is an issue with PCA9452AHNMP, 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 PCA9452AHNMP part is unused and in its original packaging.
Return procedure for PCA9452AHNMP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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