IR21592S

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The IR21592S integrated circuit is a dedicated lighting, ballast controller for use in telecom, data-center, industrial, and other power-sensitive applications. The device is designed to provide precise, actively regulated and stable power to a wide range of LED modules, fluorescent and induction lighting solutions, and other ballast-needed powersources. The device typically finds use in PoE, LVPF, and other industrial lighting applications that require reliable power regulation with long-term reliability and high efficiency.

The IR21592S consists of an active management block, a programmable power limiter and a voltage reference. The active management block features a highly integrated powerpath controller, an integrated system undervoltage monitoring logic, and complete fault protection circuitry. The programmable power limiter provides a digital-controlled interface for advanced power limiting and control. The voltage references to provide a stable and accurate reference voltage for improved circuit board layout flexibility during design and for programmable power limiting during operation.

Overview

The IR21592S is specifically designed for the regulated operation of high-density LED lighting fixtures and other ballast-based applications. It is a digital-controlled power management IC with a digital input that is used to control the input voltage to the system. The device is capable of providing precise and stable power to LED arrays and other ballast-controlled power sources. It features an integrated powerpath controller, system undervoltage monitor logic, active LED regulation control, and complete fault protection circuitry.

Application Field

The IR21592S can be used in various applications including:

• Industrial and commercial lighting fixtures
• LED modules
• Ballast powered lighting solutions
• Power over Ethernet (PoE) applications

The device can provide highly precise power and current regulation for LED fixtures, LED modules, and other ballast-controlled power sources. It can also be used in applications requiring high power factor and low power usage. The IR21592S can be used in a wide range of telecom, data-center, industrial, and other power-sensitive applications.

Working Principle

The IR21592S is an integrated device which requires an input voltage of 4.5 to 48V, a typical on-time of 1.9ns, and a typical off-time of 0.45ns, which can be programmed through the digital input. It contains an active management block with a highly integrated power path controller, integrated system undervoltage monitoring logic, and complete fault protection circuitry. The active management block limits the output voltage, current and/or power. The programmable power limiter allows user to set a power limit based on the voltage, current or power ratings. The voltage references provide a stable and accurate reference voltage for improved circuit board layout flexibility during design and for programming power limiting during operation.

The IR21592S also provides an integrated LED current control system that allows adjustment of LED, inductive and other load current. The LED current can be adjusted through either the digital input or voltage reference setting. The device supports various dimming methods such as Pulse Width Modulation (PWM), Digital Dimming, and Analog Dimming. The IR21592S also features a system level soft start which reduces the power surge due to inrush current and system level keep-alive function which can prevent the output voltage to reduce during system power cycling.

Conclusion

The IR21592S is a dedicated lighting and ballast controller for use in telecom, data-center, industrial and other power-sensitive applications. The device provides precise, actively regulated and stable power to a wide range of LED modules, fluorescent and induction lighting solutions, and other ballast-needed powersources. The device consists of an active management block, a programmable power limiter and a voltage reference for improved circuit board layout flexibility. The device can provide highly precise power and current regulation for LED fixtures, LED modules, and other ballast-controlled power sources. It can be used in a range of telecom, data-center, industrial and other power-sensitive applications.

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