XR46203IHBTR

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XR46203IHBTR Application Field and Working Principle

The XR46203IHBTR belongs to the Power Management IC (PMIC) family, particularly applied as LED Drivers. This device and its related components support a wide range of LED applications, including low- and medium-power LED lighting, indoor lighting, architectural lighting, and phase-cut dimming.

Introduction to XR46203IHBTR

The XR46203IHBTR is a cost-effective 3-channel dimmable LED driver IC, featuring linear dimming and PWM dimming capability. Key features include a wide input voltage range, low startup current, and built-in open circuit protection. With its wide operating temperature range, this device is designed to handle a range of environmental conditions.

The XR46203IHBTR provides a high-efficiency boost converter with a Deselection FET. An external DC-DC power converter is used to supply the internal Boost circuit with the necessary voltage. The DC-DC power stage is powered from the external power supply, which is located between the input voltage and the ground pin. The integrated linear and PWM dimming loop are used to dim the external LEDs.

The XR46203IHBTR also includes a self-protection feature, which protects the device in case of failures. This protection is triggered when the device is exposed to overvoltage, over-current, and over-temperature conditions. The output channels are shut down when these conditions are triggered.

Features and Benefits

The XR46203IHBTR offers a wide range of features and benefits:

• The device features an input voltage range of 4.5V to 36V, with a wide operating temperature range of -40°C to 125°C.
• The device supports linear dimming and PWM dimming, for flexible control of the LED output.
• The IC includes a high-efficiency boost converter, with a deselection FET.
• The IC also includes a self-protection feature, which protects the device in case of overvoltage, over-current, and over-temperature conditions.
• The IC offers an efficient use of power, with a low quiescent current.

Application Field of the XR46203IHBTR

The XR46203IHBTR is designed for LED drivers applications, including:

• Low- and medium-power LED lighting.
• Indoor lighting.
• Architectural lighting.
• Phase-cut dimming.

Additionally, the device can be used in other applications that require boost converters and low-voltage power supplies.

Working Principle of the XR46203IHBTR

The XR46203IHBTR is based on a voltage boost technology, which uses a DC-DC power converter to supply the internal boost converter with the required voltage. The boost converter integrates linear and PWM dimming loop, to provide dimming control to the external LEDs.

The device includes a self-protection feature, which shuts down the output channels when any of the following conditions are triggered: overvoltage, over-current, or over-temperature conditions.

The XR46203IHBTR also offers an efficient use of power, with a low quiescent current. This ensures that the device operates efficiently and conserves energy.

Conclusion

The XR46203IHBTR is a cost-effective 3-channel dimmable LED driver IC, designed for a wide range of LED applications, including low- and medium-power LED lighting, indoor lighting, architectural lighting, and phase-cut dimming. This device offers a wide input voltage range, low startup current, and built-in open circuit protection. It also includes a high-efficiency boost converter, with a deselection FET, and a self-protection feature for overvoltage, over-current, and over-temperature conditions.

The XR46203IHBTR is a reliable and efficient device, designed to provide reliable control and protection of LED systems.

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