IR2151SPBF

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IR2151SPBF is one of the leading gate drivers from the Power Management Integrated Circuits (PMIC) category. It is specifically designed for single low-side and high-side two-level gate driving applications and can help control switches operating up to 25A and 65V.

The gate driver features a high side short circuit protection with a true floating drive option. It is equipped with a low 35ns on-time and typically can handle up to 250V. The current sensing aspect of the driver enables tight control of the gate drive and ensures that only a limited amount of current is drawn from the load. This ensures the reliable operation of the gate driver and avoids load submersion effects.

IR2151SPBF is a versatile gate driver, boasting reliable and efficient performance in a wide range of applications, including high current and high temperature industrial, automotive, LED lighting and telecom systems. It can also be used in non-critical industrial applications, such as battery charging, speed control, and switching regulators.

The working principle of IR2151SPBF is based on the output capability of the integrated circuit, which consists of two complementary output drivers. Each output driver contains two transistors, one is an N-channel MOSFET (N-FET) and the other is a P-channel MOSFET (P-FET), and a few logic level inputs. The N-FET and P-FET are enabled through a logic level signal and disabled through the presence of a high voltage level. The P-FET and N-FET are controlled by an additional “enable” signal. When the enable signal is low, the P-FET and N-FET are completely disabled. When the enable signal is high, the N-FET is turned on and the P-FET is turned off.

In addition, the IR2151SPBF has an active diode turn-off feature. This feature allows the gate drive to turn on the N-FET initially, and once it is turned off, the circuit automatically turns on the P-FET to provide a steady current flow to the load.

IR2151SPBF is one of the most efficient gate drivers in the PMIC category and it is suited for single low-side and high-side two-level gate driving applications. With its efficient performance and versatile design, the IR2151SPBF ensures reliable switching and enhances the performance of your application.

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