VE-J4M-CZ-B1

DC-DC converters are versatile power supply solutions with numerous applications across various industries, and they are known for their ability to convert direct current (DC) electricity from one voltage level to a higher or lower voltage level. One of the most widely used DC-DC converters today is the VE-J4M-CZ-B1, which is a medium-power, constant voltage-conversion buck-boost controller. It features high efficiency, low standby power, wide input-voltage range and low output ripple, among other features.

In terms of application, the VE-J4M-CZ-B1 is designed for DC-DC converters operating with battery sources. It can be used in portable systems such as phones, laptops, tablets, and other consumer electronics, as well as other applications, including weMachine controllers, digital thermostats, solar charge collectors, PBX, artificial intelligence, and medical systems.

The VE-J4M-CZ-B1 is a voltage-mode Control with constant-frequency current-limit (VMCFCL) device, and it has three operating modes: vi constant voltage (CV) mode, constant current (CC) mode and Low-power mode. In CV mode, the device limits the peak current at a constant level using an internal hysteretic comparator. The main advantage of this mode is that it allows the device to protect against short-circuit conditions without adversely affecting user-defined output-voltage values.

In CC mode, the VE-J4M-CZ-B1 contains an internal voltage-mode comparator that compares the average current set point (CP) with the average output-current feedback (IFB). If the IFB is higher than the CP set point, the output is switched off. This mode is suitable for applications where a constant current is desired regardless of the voltage across the load. The Low-power mode is used when the system is in the idle or sleep state to reduce standby power consumption.

The VE-J4M-CZ-B1 also features synchronization capabilities, which allow it to be synchronized with an external clock signal. This feature supports advanced DC–DC converters, allowing for higher frequency and optimized efficiency. This converter has a fast-transient response time, ensuring excellent dynamic performance.

In order to meet various requirements and standards, the VE-J4M-CZ-B1\'s operating temperature range is extended to –40°C to +125°C. It also has several safety and protection features, such as over-voltage protection, output short-circuit protection, over-temperature protection, and under-voltage lockout (UVLO). All these features make the VE-J4M-CZ-B1 an ideal power supply solution for a wide range of applications.

In conclusion, the VE-J4M-CZ-B1 is a medium-power DC-DC converter with wide input-voltage range, synchronization capabilities, low output ripple, and several advanced safety features. It is ideal for a variety of applications, including mobile systems and consumer electronics, as well as other applications needing a cost-effective and reliable power supply solution.