LMH6526SPX/NOPB

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The Texas Instruments LMH6526SPX/NOPB is an integrated circuit used as part of a laser driver, a power management integrated circuit (PMIC). It is designed to drive laser diodes and other components with accuracy, providing fast and reliable current control loops. The integrated circuit also includes a power input stage, which ensures that the power supply is adequately powered for the load and its parameters are precise.

The LMH6526SPX/NOPB application field is mainly used for laser-based light sources and applications, such as optical communications, medical lasers, printing and industrial applications. In these applications, precise current control is essential to ensure the reliability and performance of the system. The integrated circuit can be used with both single and multi-mode laser diodes.

The working principle of the LMH6526SPX/NOPB is based on the current gain (IG), which is the ratio between the output current and the input current. The current gain can be set to one of four values: 20, 30, 40 or 50, with a lower gain resulting in a more precise control over the current. The second main parameter of the circuit is the maximum output current. This is the upper limit of the output current, beyond which the circuit will shut down, protecting the laser diode from damage.

The LMH6526SPX/NOPB also features thermal protection that can be used to protect the laser diode from overheating. The thermal protection is based on a temperature sensor which can detect the temperature of the laser diode and will shut down the circuit if the temperature exceeds a certain limit. The circuit also includes a soft start feature, which reduces the inrush current when the laser diode is started, preventing damage to the laser diode.

The integrated circuit includes other features such as a current limit, undervoltage and overvoltage protection, as well as a logic interface that can be used to control and monitor the circuit. Additionally, the circuit includes an open and short circuit detection feature, which is designed to detect any faults in the external components connected to the circuit.

The LMH6526SPX/NOPB is a powerful and reliable laser driver PMIC, providing fast, precise and controlled current control, as well as a range of features that ensure the safety and reliability of the system. The integrated circuit is an ideal solution for applications that require precise current control, such as those found in optical communications, medical lasers, printing and industrial applications.

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