Founded in April 1995, O2 Micro (NASDAQ: OIIM) is dedicated to the design, development and sale of power management systems for communications, computers, consumer electronics, industrial and automotive applications. O2 Micro has the world's leading power management system architecture, rapid market response, strong customer relationships and strong digital-analog hybrid design capabilities. O2 Micro has an experienced design and management team in the industry, branches around the world and many years of successful performance. All of the company's chips are produced in world-renowned chip manufacturers. O2 Micro attaches great importance to the development and protection of intellectual property rights, and has a wide range of international invention patents in chips and application fields, as well as numerous registered trademarks and other intellectual property rights. O2 Micro's customers include the world's leading manufacturers in the fields of communications, computers, consumer electronics, industrial and automotive.
Quality Policy: O2 Micro has established, promoted, and implemented the following quality policy to promote and support the goals of the quality system. O2 Micro is committed to providing customers with power management solutions that achieve customer satisfaction by: designing high-quality products to achieve maximum system compatibility, delivering products on time every time, and promoting quality system improvements based on measured performance. Quality Mission Statement It is the continuous improvement in the process. We achieve the goal of improving customer satisfaction by meeting or exceeding user requirements, while making it easier for customers to do business with us.
Environmental Policy: O2 Micro is committed to preventing pollution and continuously improving the Environmental Management System (EMS). O2 Micro will develop environmentally safe technologies, including but not limited to: reducing power consumption worldwide through designing power-saving devices, reducing the use of toxic and hazardous substances in product materials and manufacturing processes, and we are committed to becoming a responsible and sustainable global organization in compliance with applicable laws and other requirements worldwide. From design, procurement, manufacturing to distribution, we will operate and manage all aspects of our business in a manner that promotes an earth-friendly environment.
OZ528 LCD Bias Supply Controller 28 E-TSSOP, QFN, SOP
Features
LED Backlight Controller ICs for AUTOMOTIVE/CAR TV/GPS/PND Applications
The OZ528 is a LCD panel bias power supply controller, suitable for GPS application. It generates four voltage rails for a TFT LCD panel. It includes a boost converter to provide the source voltage, buck converter to provide the logic voltage for the system, boost converter for positive gate voltage and a negative charge-pump driver to provide adjustable regulated output voltages to bias the TFT panel.
OZ528 has power-on sequencing. The buck converter is the first to start after the IC is enabled. Two boost converters and a negative charge-pump are enabled when their corresponding TIMER reaches approximately 2.0V.
Parameters
• High power DC/DC power converter
• Operation frequency synchronization
• Optional spread spectrum operation frequency
• Thermal, over-current, and over load protection
• Abnormal pulled-up output protection
• LED fault status output
Buck Converter
• Integrated power MOSFET
• Current mode control
• Soft start function
Two Independent Boost Converters
• Integrated power MOSFET
• Current mode control
• Wide output range: up to 25.0V
• Adjustable power on/off delay time
• Soft start function
Negative Charge Pump
• Voltage mode control
• Adjustable power on/off delay time
Application
• GPS
Talking
51mcu
Embedded System
51mcu
EE_FPGA Learning Park
Analogue and Mixed Signal
Popular Components
EEWorld
subscription
account
EEWorld
service
account
Automotive
development
circle
京公网安备 11010802033920号
EEWORLD
