LTC7000IMSE-1#TRPBF

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PMIC, or Power Management Integrated Circuit, is a multi-function integrated circuit used in power management systems of digital products and various electronics. Nowadays, different kinds of pmic are available. Among them, the LTC7000IMSE-1#TRPBF Gate Driver stands out from the rest. This article will discuss the application field and working principle of LTC7000IMSE-1#TRPBF.

The LTC7000IMSE-1#TRPBF is a high-voltage, low power Gate Driver. It is designed to drive high-voltage MOSFETs, IGBTs and other high-gate voltage switches. The device can generate high-voltage, high-current output pulses at low supply voltages, making it particularly suitable for high-voltage applications. The LTC7000IMSE-1#TRPBF is suitable for the applications of motor control, UPS, switch-mode power supplies, AC/DC and DC/DC converters, level shifters, automotive and industrial automation.

The LTC7000IMSE-1#TRPBF works with a wide range of gate capacitance (4 nF to 150 nF) and gate threshold voltages (7.5 V to 12 V), enabling it to accurately determine the gate voltage of the MOSFET/IGBT based on the input logic signal. It features clean switching with low switching losses and fast switching optimization for both high-side and low-side drivers.

The LTC7000IMSE-1#TRPBF brings the following features:

• Output voltage range (VOH): between 8 V and 20 V
• Supply voltage range (VCC): between 5 V and 18 V
• Input logic voltage range (VIH/VIL): between 5 V and 18 V
• Output voltage rise and fall times (tR/tF): between 2 µs and 4 µs
• Output current capability (IOUT): between 15mA and 100mA
• Capacitor to drive gate range (Cg): between 4 nF and 150 nF

The LTC7000IMSE-1#TRPBF maintains the low-power, low-noise characteristics of a typical integrated power driver even at high switching frequencies. It also includes true logic-level output, allowing it to operate directly from logic-level input signals. The device has built-in undervoltage lockout and overvoltage protection.

The LTC7000IMSE-1#TRPBF consists of a dielectric isolation core and two bipolar transistors. The isolation core is used to provide electrical isolation between the input and output of the device, which allows the input and output to be driven from different power domains. The bipolar transistors are used to produce the high-voltage output pulse when the input logic is applied. The output pulse is used to switch the gate of the load device, in this case MOSFET/IGBT.

When the input logic is not applied, the Gate Driver will remain in a \'standby\' state, with both the gate voltage and supply voltage set to \'0\'. The LTC7000IMSE-1#TRPBF will quickly switch to the \'ready\' state when the input logic is applied, which allows the Gate Driver to quickly produce an output voltage pulse. When the output voltage pulse is applied, the Gate Driver will quickly switch to the \'open\' state, allowing the load device to be switched on.

The Gate Driver will then switch to the \'closed\' state, when the input logic is removed, and the output voltage pulse is removed. The closed state allows the load device to remain switched on. The LTC7000IMSE-1#TRPBF can also be configured to remain in the closed state after the input logic is removed. This is done with an optional control pin, which can be used to configure the Gate Driver to remain in the closed state after the input logic is removed.

In conclusion, the LTC7000IMSE-1#TRPBF is a high-voltage, low power Gate Driver with clean switching and low switching losses. It features true logic-level output and offers a wide range of gate capacitance and gate threshold voltages. It is suitable for a wide range of applications, including motor control, switch-mode power supplies, level shifters, AC/DC and DC/DC converters, automotive, and industrial automation. Its wide range of features makes it an ideal choice for high-voltage applications.

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