PS8A0102BWE

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PS8A0102BWE is a specialized power management integrated circuit (PMIC) from Seiko Epson Corporation. It is capable of providing high-voltage bias and configurable current drive for system applications.

The PS8A0102BWE is designed for applications such as consumer electronics, industrial electronics, automotive, and medical that require high performance and small solution size with cost in mind. It integrates a large set of devices, including a switch-mode DC-DC converter, DC-DC LED driver, LED voltage regulator, LED curtailed current source, LED dimming, battery charging monitor, and programmable signal ground. The single-chip PMIC has the following features:

• Integrated power supply circuit operating at 4.5V to 20V
• DC-DC switch-mode regulator with internal power MOSFET
• LED driver capable of regulating current up to 100mA
• Programmable power-on voltage of 2.25~ 8V
• Configurable drain current of 10mA in low current mode
• Configurable register bits for output voltage settings
• Maximum switching frequency of 400kHz
• Programmable digital signal ground
• Integrated charge pump for LED dimming
• Integrated power-on reset circuit
• Integrated over-current protection
• Integrated feedback detection

The PS8A0102BWE utilizes a combination of linear and switched power supply architectures to reduce the current consumption and extend the product life. The device is designed to work at an ambient temperature range of -40°C to +105°C, which allows it to be used in most harsh environmental conditions. The PS8A0102BWE provides high-efficiency power-supply design and reliable protection against current overloads and shorts. Furthermore, the device can be used with multiple voltage levels to reduce the need for external components.

The PS8A0102BWE provides an integrated LED-driver circuit, which offers high accuracy in current regulation and output voltage setting for LED applications. It can be used for multiple LED string configurations and, due to its high switching frequency, it offers fast and accurate LED dimming. The LED luminance and color temperature can be easily controlled with the help of the integrated charge pump, which helps to reduce the system cost.

The PS8A0102BWE offers a programmable power ground, allowing the user to set the power-on voltage level in order to reduce the current consumption. Furthermore, it features a programmable register bit for setting the output voltage and current. The register bits allow for flexible configuration of the output parameters for applications requiring different power supply characteristics.

The PS8A0102BWE is a cost-effective device for powering complex and demanding applications. It combines a wide range of features, including low current consumption, fast and accurate LED dimming, and easy-to-configure output voltage and current. Furthermore, its extended temperature range, robust design, and integrated protection against current overloads make it suitable for use in the most demanding conditions.

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