UGB10BCT-E3/45

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UGB10BCT-E3/45 Application Field and Working Principle

UGB10BCT-E3/45 is an integrated component produced by the semiconductor manufacturer STMicroelectronics. It belongs to the diode rectifier array family, used mainly in AC to DC rectifier applications and motor drive DC power management. It is a single-chip compound semiconductor device composed of 10 diodes.

Application Field

UGB10BCT-E3/45 is exclusively used in AC to DC rectifier applications, such as power supplies, motor drives, and battery charging. This type of rectifier features a low on-state voltage drop, a high reverse voltage tolerable, and a high surge current rating, making it a suitable choice in many applications. It can be connected as a full-bridge or half-bridge rectifier according to the requirements.

It can offer good EMC performance in motor drives with long motor start-up times and limited switching losses, while its low forward voltage drop can reduce EMI filtering components cost by lowering power consumption. UGB10BCT-E3/45 is able to the power consumption of various power adapters.

Working Principle

UGB10BCT-E3/45 is a single-chip compound semiconductor device of 10 diodes integrated on a chip. It is a fast-recovery rectifier, with low on-state voltage drop, excellent temperature characteristics, and EMI suppression ability. The low forward voltage drop is key to its high efficiency performance.

Diodes of UGB10BCT-E3/45 are combined in an arrangement known as \'forward-biased diode’, each one of them is located within a single PN-junction, responsible of converting the alternating current (AC) into direct current (DC). When the AC is applied at the anode side, current fluxes through the each PN-junction of the diodes, while the cathode side remains open, so that the direct current can flow out. As the current might change directions depending on the applied AC, the ‘forward-biased diode’ arrangement allows the circuitry to handle both positive and negative polarity, acting as a linear regulator.

UGB10BCT-E3/45 has a reverse voltage protection device with a breakdown voltage range from 85 to 130 VDC. This prevents it from damage when the applied voltage slightly exceeds the limit. It also helps prevent any over-voltage from the source to the load.

Furthermore, this device is optimized for operation in high efficiency applications with oxide- passivated, low-crown fast-recovery diodes, allowing low forward voltage drops. The low forward voltage enables low ESR and low noise power supplies, resulting in excellent temperature characteristics. The diodes also have a reverse voltage protection.

Furthermore, UGB10BCT-E3/45 is designed to withstand a very high surge current, up to 30 A in a single pulse. This enables it to power high-end motor drives, as well as other applications such as UPS and switch-mode power supplies.

Conclusion

UGB10BCT-E3/45 is a single-chip compound semiconductor device of 10 diodes. It is an integrated component designed exclusively for AC to DC rectifier applications, such as power supplies, motor drives, and battery charging. It works with a fast-recovery mechanism, enabling low on-state voltage drops and excellent temperature characteristics. It also offers reverse voltage protection and a very high surge current rating up to 30 A, so it can power high-end motor drives and many other applications.

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