CD611416B

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The CD611416B is a four channel monolithic high-voltage MOS array designed to drive LEDs, especially suited for automotive instrument panels and dashboards.

It is part of a family of CMOS/BiCMOS logic-compatible high-voltage arrays with a very wide range of input and output voltages. The device includes a regulation channel for Vdd, in order to set the output voltage at a constant level regardless of the battery voltage.

The CD611416B is well suited for interface applications requiring high voltage, high performance, and low power consumption.

Application Field

The CD611416B is typically used in automotive instrument clusters such as cluster illumination, speedometer lighting, and tachometer lighting. It can also be used in architectural lighting, general illumination, and functional lighting.

Working Principle

The CD611416B consists of a high voltage four-channel MOSFET source driver array. It is designed to drive LEDs with an input voltage ranging from 5V to 18V. Using an external resistor, the output current can be adjusted from 0.07A to 1.75A, depending on the input voltage. The device is capable of operating up to a maximum voltage of 100V, allowing for long strings of LEDs to be driven.

The CD611416B includes a voltage regulation circuitry which ensures a constant output voltage regardless of the input voltage fluctuation. It is also protected against reverse bias and inrush current, as well as ESD strikes up to 8kV. The device also features power-on reset and thermal protection, making it ideal for automotive applications.

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