PCA9451A - i.MX 93xアプリケーション・プロセッサ用パワー・マネジメントIC
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24 V Vin PMIC with SIL 2 Safety Certification For Low Power MCUs in Industrial Application
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NXP's first 24 V input (Vin) rated, SIL 2 certified power management IC (PMIC) provides a comprehensive single chip solution for powering low power microcontrollers in safety critical industrial applications. This highly integrated device simplifies system design by combining pre regulation and multiple power rails in one compact package.
Single chip solution advantages
- Small solution size for space constrained industrial designs
- Integrated pre regulator and multiple MCU/peripheral rails in a single PMIC
- SIL 2 certified PMIC, enabling easier adoption for customers targeting SIL 2 and SIL 3 safety architectures
Features
Operating Range
- 40 V DC maximum input voltage
- Support operating voltage range down to battery 3.2 V with VBST
- Support operating voltage range down to battery 6 V without VBST
- Low Power OFF mode with 30 µA quiescent current
Power Supplies
- VPRE: synchronous buck converter with integrated FETs. Output DC current capability up to 1.5 A and PFM mode VCORE: synchronous buck converter with integrated FETs. Upto 1.6 A VBST: asynchronous boost controller configurable as front-end supply LDO1: LDO selectable output voltage between 3.3 V and 5.0 V and up to 400 mA current capability.
- LDO2: LDO regulator with selectable output voltage between 3.3 V and 5.0 V and up to 400 mA current capability. VREF: high precision reference voltage with 0.75% accuracy for External ADC reference and internal tracking reference. TRK1 and TRK2: Voltage tracking regulators with selectable output voltage between VREF, LDO2 or Internal LDO reference. Each Tracker has a current capability up to 150 mA
Compliance
- Electromagnetic Compatibility (EMC) optimization techniques for switching regulators, including spread spectrum, slew rate control and manual frequency tuning
- Electromagnetic Interference (EMI) robustness supporting various automotive EMI Test standards
- Functional Safety - Industrial Safety Level support up to SIL 2