ROHM developed the power supply IC "BD9V100MUF-C" with 2MHz operation, the industry's highest step-down ratio, and 60V input 2.5V output.
ROHM, a world-renowned semiconductor manufacturer, develops a built-in MOSFET step-down DC/DC converter with the industry's highest step-down ratio for 2MHz operation (switching) for 48V power-driven in-vehicle systems such as mild hybrid vehicles . The "BD9V100MUF-C" is equipped with the ultra-high-speed pulse control technology "NanoPulseControl" which combines the advantages of ROHM 's "circuit design", "layout" and "process". It can output up to 60V high voltage input at 2MHz. 2.5V low voltage (the industry's highest step-down ratio of 24 to 1). This not only enables miniaturization of peripheral components, but also allows high- and low-voltage conversion structures composed of more than two power ICs. In the past, only one power IC is required, so that miniaturization and system of applications can be realized in one fell swoop. Simplification. This product has been sold in July 2017 (sample price is 1,000 yen/piece, excluding tax). It is expected to start mass production in December 2017 with a monthly capacity of 100,000. The production base of the previous process is ROHM Hamamatsu Co., Ltd. (Hamamatsu City, Japan), and the production base of the later process is ROHM Electronics Philippines, Inc. (Philippines). ROHM plans to develop a power supply IC for industrial equipment equipped with "NanoPulseControl" within this year, and continue to contribute to the miniaturization and system simplification of industrial equipment. In recent years, the 48V power supply system has been installed in the automotive field, which is increasingly demanding energy-saving and environmental protection performance (the fuel economy improvement effect is better than the previous 12V power supply system, and the cost performance is better than that of the full hybrid vehicle). The mild hybrid car is attracting attention. However, the in-vehicle system must be kept at 2MHz, and the 3.3V or 5V power supply IC that can be directly stepped down from 48V to the drive ECU (Electronic Control Unit) does not exist. It is necessary to manufacture an intermediate voltage of 12V and perform a 2-step step-down. In order to meet the demand for power ICs in the new market, ROHM has developed the ultra-high-speed pulse control technology “NanoPulseControl†by utilizing the advantages of analog design technology and power system technology and vertical integration production system to realize “single chip of power systemâ€. . The new product "BD9V100MUF-C" is equipped with the ultra-high-speed pulse control technology "NanoPulseControl" developed by the advantages of ultra-high-speed pulse control circuit and high-voltage BiCDMOS technology. It realizes the world's smallest power supply IC ※ switch on-time 9ns (The switch on-time is the control pulse width of the power IC, N is the negative 9th power of 10), thus achieving the industry's highest step-down ratio. ※As of August 29, 2017, Roma survey data In this way, 2MHz operation without affecting the AM broadcast band (1.84MHz Max.) can be maintained at the same time, while a high input voltage of up to 60V can output 5V and 3.3V (minimum 2.5V) low voltages for driving the ECU. The voltage conversion structure of a 48V power supply system such as a mild hybrid vehicle that switches from a high voltage to a low voltage can be used with only one power IC. The number of components is halved, which not only enables application miniaturization and system simplification. At the same time, high-frequency operation can also achieve miniaturization of external components (coils). NanoPulseControl is an ultra-high-speed pulse control technology realized by ROHM's vertical integrated production system, which combines the advantages of three cutting-edge analog technologies of "circuit design", "layout" and "process". It is very useful for miniaturization and system simplification of applications driven by 48V power systems, such as mild hybrid vehicles, industrial robots, and auxiliary power supplies for base stations. *1) DC/DC converter A type of power IC that converts a direct current (DC) voltage into a direct current voltage. There is generally a buck (to make the voltage drop) and a boost (to make the voltage rise). Residual Current Circuit Breaker With Over Load Protection
TWO FUNCTION : MCB AND RCCB FUNCTIONS
leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage.
RCBO,ELCB,Leakage Circuit Breaker,Residual Current Circuit Breaker,Residual Current Circuit Breaker with Over Load Protection 1p,Residual Current Circuit Breaker with Over Load Protection 2p Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjaccontactor.com
*1) "BD9V100MUF-C". 
leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short-circuited as wellas infrequent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1.