INN3268C-H202-TL

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As the rapid development of power management integrated circuit (PMIC) technology, new PMICs are constantly appearing in various industrial applications. One of them is the INN3268C-H202-TL with high performance capabilities, taking the advantage of its uniquely designed working principle and application field.

INN3268C-H202-TL belongs to PMIC - AC DC Converters, Offline Switchers. It is a highly integrated non-isolated converter with a wide input voltage range of 4.5V to 17V. It works as an offline AC/DC power supply, which can provide up to 2.5A of continuous current to the load. With a high switching frequency of 1.2MHz, the output ripple can reach a low level of 15mV under any given load and temperature conditions. The IC benefits from its small form factor, measuring only 11.6mm x 6mm x 4.8mm. It also features a built-in safety protection set and a standby function. The standby function is realized by driving the high side P-MOSFET directly with the enable input, to reduce losses when in standby mode.

The working principle of INN3268C-H202-TL is based on the FE2P topology, with the FETs closely coupled to the energy storage inductors. The two FETs are connected in parallel to form a full-bridge with zero-voltage switching (ZVS) capability. This topology can provide fast turn-on and turn-off of the FETs, which helps to reduce conduction losses. The FETs are driven by the internal high-speed MOS driver to realize the ZVS operation. It also includes a control loop system which can control the output voltage with a high precision. The switching frequency is also adjustable, which is controlled by the integrated Frequency Step Regulation (FSR) circuit. This allows the user to adjust the switching frequency in order to obtain the best efficiency at any given load level.

In addition, the IC also includes over temperature protection and current limiter to protect the FETs from overheating or current over load. The current limit is adjustable separately for the two low side FETs, which is beneficial to optimize the current load balance and reduce the overall losses. Besides, the IC also integrates a start-up block, reset function, and various levels of voltage detect signals, which makes it a suitable choice in different applications.

Owing to the integrated features, INN3268C-H202-TL is widely used in various applications such as wireless charging, home appliances, power supplies for portable devices, and automotive electronics. It is also suitable for applications that require high efficiency and power density such as power supplies for industrial and medical equipment.

The advanced control loop, together with the high switching efficiency, makes the INN3268C-H202-TL a highly popular and widely used power management integrated circuit. With its unique working principle and integration capability, it provides reliable power conversion and management in a small form factor, which is especially suitable for the applications where space is limited.

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