Overview
The PCA9450BHNY is a Power Management Integrated Circuit (PMIC) designed and manufactured by NXP Semiconductors. This single-chip PMIC is specifically tailored to support the i.MX 8M family of application processors, including the i.MX 8M Mini, Nano, and Plus. It is optimized for both portable applications using 1-cell Li-Ion or Li-polymer batteries and non-portable applications powered by a 5V adapter.
The PCA9450BHNY is part of NXP's comprehensive portfolio of power management solutions, ensuring efficient and reliable power delivery to various components within a system. This PMIC is available in different versions to cater to the specific needs of different i.MX 8M processor variants.
Key Specifications
| Parameter | Description |
|---|---|
| Buck Regulators | Six high-efficiency step-down regulators:
|
| LDO Regulators | Five linear regulators:
|
| Load Switch | 400 mA load switch with built-in active discharge resistor |
| Logic Level Translator | 2-channel logic level translator with auto direction sensing |
| Crystal Oscillator Driver | 32.768 kHz crystal oscillator driver and buffer output |
| Package | 56-pin HVQFN package, 7 mm x 7 mm, 0.4 mm pitch |
| Temperature Range | -40°C to 105°C ambient temperature range |
| ESD Protection | Human Body Model (HBM): +/- 2000 V, Charged Device Model (CDM): +/- 500 V |
Key Features
- High-Efficiency Regulators: Six step-down regulators and five linear regulators to provide efficient power management.
- Dynamic Voltage Scaling (DVS): Supports DVS on BUCK1, BUCK2, and BUCK3 regulators for optimal power efficiency.
- Remote Sensing: Remote sensing capability on BUCK1, BUCK2, and BUCK3 to compensate for IR drop.
- Memory Support: Supports various memory types (DDR4/LPDDR4/DDR3L) via system UBOOT configuration without hardware changes.
- Load Switch and Logic Level Translator: Includes a 400 mA load switch with an active discharge resistor and a 2-channel logic level translator.
- Crystal Oscillator Driver: Features a 32.768 kHz crystal oscillator driver and buffer output.
- Power Control and ESD Protection: Provides power ON/OFF control, standby/run mode control, and robust ESD protection.
- I2C Interface: Supports Fm+ 1 MHz I2C-bus interface for communication.
Applications
- IoT Devices: Suitable for Internet of Things (IoT) devices requiring efficient power management.
- Tablets: Ideal for tablet devices that need robust and efficient power solutions.
- Electronic Point of Sale (ePOS): Used in ePOS systems to ensure reliable power supply.
- Industrial Applications: Applicable in various industrial settings where reliable and efficient power management is crucial.
Q & A
- What is the PCA9450BHNY?
The PCA9450BHNY is a Power Management Integrated Circuit (PMIC) designed to support the i.MX 8M family of application processors.
- Which processors does the PCA9450BHNY support?
The PCA9450BHNY supports the i.MX 8M Mini, Nano, and Plus application processors.
- What types of batteries does the PCA9450BHNY support?
The PCA9450BHNY supports 1-cell Li-Ion and Li-polymer batteries, as well as 5V adapter non-portable applications.
- What are the key features of the buck regulators in the PCA9450BHNY?
The buck regulators support Dynamic Voltage Scaling (DVS), remote sensing, and have configurable output voltages and currents.
- Does the PCA9450BHNY support memory configuration without hardware changes?
Yes, it supports various memory types (DDR4/LPDDR4/DDR3L) via system UBOOT configuration without hardware changes.
- What is the purpose of the load switch in the PCA9450BHNY?
The load switch provides a 400 mA power supply with a built-in active discharge resistor, typically used for powering SD cards.
- What is the temperature range of the PCA9450BHNY?
The PCA9450BHNY operates across an ambient temperature range of -40°C to 105°C.
- What kind of ESD protection does the PCA9450BHNY offer?
The PCA9450BHNY offers Human Body Model (HBM) protection up to +/- 2000 V and Charged Device Model (CDM) protection up to +/- 500 V.
- What is the package type and dimensions of the PCA9450BHNY?
The PCA9450BHNY is offered in a 56-pin HVQFN package, measuring 7 mm x 7 mm with a 0.4 mm pitch.
- In which applications is the PCA9450BHNY commonly used?
The PCA9450BHNY is commonly used in IoT devices, tablets, electronic point of sale (ePOS) systems, and various industrial applications.
