98-0515PBF

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Introduction

The 98-0515PBF is a DC/DC LED driver integrated circuit (IC) released by the XP Power company in 2014. It enables AC/DC LED lighting system designers to interface LED arrays to their LED drive applications without the need for bulky external components. The 98-0515PBF is particularly attractive for its wide operating temperature range in comparison to other LED drivers, allowing it to be used in both indoor and outdoor environments.

Description

The 98-0515PBF is a high efficiency DC/DC buck LED driver specifically designed to provide constant current outputs over a wide range of input voltages and temperatures. It is suitable for driving a variety of LED loads including surface mount, strip and wire LEDs. The IC features an adjustable voltage output range of 10V to 30V, and can provide up to 800 mA of output current. The IC also features input voltage regulation, output voltage regulation, over-temperature protection and thermal shut-down protection.

Features

• Wide input voltage range: 4.5V to 25V
• Constant current outputs: 0.1 A up to 8 A
• High efficiency switching regulator circuit
• Output current regulation +/- 5%
• Input voltage regulation +/- 3%
• Over-temperature protection
• Thermal shut-down protection
• Low EMI and RFI emissions
• Compatible with most standard AC/DC power supplies
• Extended operating temperature range: -40°C to +125°C

Application Field and Working Principle

The 98-0515PBF DC/DC LED driver is suitable for a variety of LED lighting applications, including automotive, stage lighting and other DC/DC LED application designs. The IC features a constant current output stage which is capable of providing up to 800 mA of current in a wide temperature range. The wide input voltage range and low power dissipation of the IC make it an ideal choice for powering LED arrays or strings.

The 98-0515PBF works by converting a DC input voltage to a precise constant current output. The IC features a DC/DC buck regulator circuit which is controlled by an internal current mode PWM controller. This controller adjusts the duty cycle of the buck converter and thus regulates the output current. The 97-0515PBF also features an input voltage regulation circuit which maintains the input voltage within a pre-defined range, thus ensuring the steady output current.

Conclusion

The 98-0515PBF DC/DC LED driver integrated circuit from XP Power is ideal for applications that require a wide range of input voltage and high efficiency constant current outputs. It features a wide operating temperature range, low power dissipation and adjustable voltage output range. The IC is also protected from over-temperature, over-voltage and under-voltage conditions and is compatible with most standard AC/DC power supplies. The 97-0515PBF is suitable for use in a variety of LED lighting applications, making it an attractive option for designers working with LED drive applications.

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