Overview
The PCA9450CHNY is a Power Management Integrated Circuit (PMIC) designed by NXP USA Inc. specifically to support the i.MX 8M family of application processors. This single-chip PMIC is tailored for both portable applications using 1 cell Li-Ion or Li-polymer batteries and non-portable applications using a 5 V adapter. It is an integral component in managing power efficiently for various system configurations, including those requiring dynamic voltage scaling and multiple power modes.
Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA9450CHNY |
| Buck Regulators | BUCK1-3: 0.6 V to 2.1875 V, 12.5 mV step, 3000 mA BUCK4: 0.6 V to 3.4 V, 25 mV step, 3000 mA BUCK5-6: 0.6 V to 3.4 V, 25 mV step, 2000 mA |
| LDO Regulators | LDO1: 1.6 V to 1.9 V, 3.0 V to 3.3 V, 100 mV step, 10 mA |
| Load Switch | 400 mA load switch |
| Level Translator | 2-channel I2C level translator |
| Crystal Oscillator | 32.768 kHz crystal oscillator driver |
| Power Modes | Eight power modes: OFF, READY, SNVS, RUN, STANDBY, PWRDN, PWRUP, and FAULT_SD |
Key Features
The PCA9450CHNY offers several key features that make it a robust power management solution:
- Dynamic Voltage Scaling (DVS): Supported on BUCK1, BUCK2, and BUCK3 regulators, allowing for efficient power management based on system requirements.
- Remote Sensing: Available on BUCK1, BUCK2, and BUCK3 regulators to ensure accurate voltage delivery to the load.
- Configurable Buck Regulators: BUCK1-BUCK3 can be configured as a 6 A dual-phase regulator in certain versions (PCA9450C).
- Multiple Power Modes: Eight power modes to manage power efficiently in various system states.
- I2C Interface: For communication and control of the PMIC.
- Thermal Warning/Protection: To prevent overheating and ensure reliable operation.
Applications
The PCA9450CHNY is designed for use in a variety of applications, including:
- Portable Devices: Using 1 cell Li-Ion or Li-polymer batteries, such as handheld devices and mobile equipment.
- Non-Portable Devices: Using a 5 V adapter, such as industrial control systems and consumer electronics.
- Embedded Systems: Particularly those based on the i.MX 8M family of application processors, which are common in IoT, industrial automation, healthcare, and transportation systems.
Q & A
- What is the primary function of the PCA9450CHNY?
The PCA9450CHNY is a Power Management Integrated Circuit (PMIC) designed to manage power for the i.MX 8M family of application processors.
- What types of batteries does the PCA9450CHNY support?
The PCA9450CHNY supports 1 cell Li-Ion and Li-polymer batteries.
- How many buck regulators does the PCA9450CHNY have?
The PCA9450CHNY has six buck regulators (BUCK1 to BUCK6).
- What is the maximum current rating of the buck regulators?
The maximum current ratings vary: BUCK1-3 up to 3000 mA, BUCK4 up to 3000 mA, and BUCK5-6 up to 2000 mA.
- Does the PCA9450CHNY support dynamic voltage scaling?
- What is the purpose of the 32.768 kHz crystal oscillator driver?
The 32.768 kHz crystal oscillator driver is used for timing and clocking functions within the system.
- How many power modes does the PCA9450CHNY have?
The PCA9450CHNY has eight power modes: OFF, READY, SNVS, RUN, STANDBY, PWRDN, PWRUP, and FAULT_SD.
- What is the function of the I2C level translator?
The I2C level translator enables communication between different voltage domains within the system.
- Is the PCA9450CHNY suitable for non-portable applications?
- What types of systems typically use the PCA9450CHNY?
The PCA9450CHNY is typically used in embedded systems, IoT devices, industrial automation, healthcare, and transportation systems.
