MC33FS6500NAE

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Product Introduction

The MC33FS6500NAE is an advanced power management integrated circuit (PMIC) developed by NXP Semiconductors to provide intelligent, localized power management and conversion capabilities for consumer and portable applications. This device contains a 32-bit ARM M0 core CPU, a dedicated functional block (DFB), and several independent power management modules. The MC33FS6500NAE is available in an 8-pin integrated circuit package, providing an integrated power solution for all consumer applications requiring moderate power.

Application Field

The MC33FS6500NAE provides a high-performance, integrated power solution for consumer-level control and monitoring applications, including home appliances, consumer electronics, security and surveillance systems, battery-powered devices and industrial control. As it contains an ARM M0 core and several power management modules, it can be used for a wide range of applications, such as PC power management and control, SMPS power monitoring and optimization, battery-backed power supply operations, application-specific charger (ASLAB) system and medical device power management.

Working Principle

The MC33FS6500NAE is capable of providing up to 10 W of regulated power. It manages power conversion, monitoring, and control functions to enable efficient, distributed power delivery. Its features include a 3-channel, 1.2A per-channel PWM controller; a buck DC-DC converter with selectable PWM modes; a buck-boost DC-DC converter; an analogue protection circuit; a low drop-out (LDO) regulator with selectable overload protection; and a 6–12 V I2C interface. It also incorporates an eight bit A/D converter to provide voltage monitoring, temperature monitoring and battery monitoring.

The device’s buck-boost converter controls the output voltage by regulating the on/off states of an internal series of switching transistors. By varying the pulse width of these transistors, the buck-boost converter maintains a constant output voltage regardless of changes in the input voltage or load current. The PWM controller uses a current-mode control technique to regulate the output voltage and a voltage-mode feed-forward compensation system to adjust the output in order to maintain a constant output voltage.

The analogue protection circuit monitors the input and output voltages to ensure that they never exceed the device’s maximum ratings. In addition, the device also incorporates a low drop-out (LDO) regulator with selectable overload protection. The LDO regulator is used to provide a regulated, low-voltage rail to enable the device to enter power-save mode. The LDO is capable of supplying up to 10 milliamps of current.

Conclusion

The MC33FS6500NAE is an advanced PMIC developed by NXP Semiconductors that provides an integrated power solution for consumer-level control and monitoring applications. It contains a 32-bit ARM M0 core CPU, a dedicated functional block (DFB), and several independent power management modules. It is capable of providing up to 10 W of regulated power and incorporates a 3-channel, 1.2A per-channel PWM controller; a buck DC-DC converter with selectable PWM modes; a buck-boost DC-DC converter; an analogue protection circuit; a low drop-out (LDO) regulator with selectable overload protection; and a 6–12 V I2C interface. The MC33FS6500NAE is an ideal choice for consumer and portable applications requiring moderatepower and is suitable for a wide range of applications, such as PC power management and control, SMPS power monitoring and optimization, battery-backed power supply operations, application-specific charger (ASLAB) system and medical device power management.

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