Performance Characteristics and Application Analysis of Boost DC / DC Converter Aat1230

Portable system designers turn to OLED to take advantage of its thin waveform factor, lower power consumption demand and wider viewing angle. Designers need boost converter with fast transient response and zero leakage in non working state to ensure battery life. Leakage current loss can be minimized through hysteresis control and high stability. Aat1230 is an ideal dedicated power solution for OLED modules.

Analogtech believes that stability is the core issue in the design of boost converter. In order to meet the needs of stability, aat1230 integrates a high-frequency converter up to 2MHz, has a feedback loop control mechanism, supports extremely fast CIS state response, and maintains stability in a wide range of load and input voltage without additional compensation elements. In addition, the high switching frequency of the device requires only minimal inductance and capacitance.

Aat1230 adds a new feature to solve the inherent leakage current loss of traditional boost converter when driving OLED. In order to minimize current loss, designers using traditional boost converters usually use load switches and control circuits to disconnect the converter when the OLED module is disabled. Aat1230 adds a real load disconnection function. When en / set is pulled down, it can isolate the load from the power source, and its leakage current does not exceed 1? A。 This function simplifies the circuit design by removing the load switch and control circuit.

In order to support most current OLED modules, the output voltage of aat1230 can be dynamically set by activating either of the two reference stages through the SEL logic pin. As the application of new generation OLED becomes more and more perfect, designers need more complex control mechanism. The dynamic output control function of aat1230 makes it easy for designers to realize conversion. By enabling the simple serial control (s2cwire) interface of setting pins and chips, designers can make the output brightness 16 different brightness levels.

Aat1230 provides a series of safety features, including cycle to cycle current limit, short circuit and over temperature protection circuit at - 40 ° C to 85 ° C. The package form of the device is lead-free, 12 pin tsopjw package.