LP2901IDRG4Q1 Integrated Circuits (ICs)

Introduction

LP2901IDRG4Q1 is a dual low-power, rail-to-rail, high brightness, segmented LCD driver that is intended for operation with LCD displays. It operates with a 3.0V to 5.5V single supply, and draws a typical supply current of 10 μA. Each output channel consists of a low-power rail-to-rail output stage and a corresponding offset stage, providing class-leading output swing.

Application Field

The LP2901IDRG4Q1 is mainly used applications requiring low power consumption such as portable-device batteries, automotive displays, and medical systems. It is suitable for driving LCD displays with up to 16 segments and 7 commons, providing superior picture quality and uniform brightness across the display. LP2901IDRG4Q1 is ideal for cost-sensitive applications, providing the highest gate densities and programmable output drive.

Working Principle

LP2901IDRG4Q1 provides two output channels, each with its own offset stage. Each output stage is designed to track the rail-to-rail voltage range and decrease supply voltage up to 2V. This enables the LP2901IDRG4Q1 to operate with a wide range of LCD displays. Each output driver is capable of providing up to 16mA of continuous load current, providing the required display brightness. The device also has programmable output drive current, allowing users to fine-tune the display brightness.

The output stages also feature internal static discharge protection and daisy-chain output drivers for driving multiple displays. The device also includes a programmable segment blanking feature to prevent display distortion when the display changes due to temperature or supply voltage changes. Additionally, the device includes a programmable temperature compensation feature to maintain steady LCD performance over extended temperature range.

Conclusion

LP2901IDRG4Q1 is an ideal device for driving LCD displays in cost-sensitive applications while still providing superior performance. Its two output channels are designed to track the rail-to-rail voltage range and provide the required display brightness. The device includes static discharge protection, programmable output drive, segment blanking and temperature compensation features, making it suitable for use in a variety of applications.