PMICs suit UHD display panels for laptops, says MagnaChip
Power management integrated circuits (PMICs) developed by MagnaChip Semiconductor have been introduced for UHD display panels for laptops.
PMICs are frequently used to power space-constrained devices where high-efficient and compact form factors are required. For battery-operated devices, the battery life depends on the efficiency of the PMIC’s power management capabilities.
This latest PMIC controls electricity consumption through inter-integrated circuit (I2C) technology, which ensures that functions such as dynamic voltage management, on/off block, protection circuit fault flag and switching frequency transition in UHD display panels are performed seamlessly, explains MagnaChip.
The monolithic IC includes one boost regulator for the power supply to source and gate drivers, three high-current buck regulators for power supply to a timing controller, two op amps for gamma buffer and two charge pumps, one positive and one negative. This level of integration results in smaller and faster electronic circuits. The PMIC also includes fast transient response and enhanced circuit protection measures.
These characteristics allow the PMIC to address changes in current consumption and protects devices from damage with over-voltage protection, short circuit protection, under-voltage lockout, over-current detection, over-current limit and thermal shutdown. In addition, the PMIC offers constant current mode and dynamic switching frequency.
YJ Kim, CEO of MagnaChip said that the product roadmap will include “possible expansion of our portfolio to address specialised display requirements from the tablet and OLED TV manufacturers, both of which are high growth potential markets.”
MagnaChip Semiconductor designs and manufactures analogue and mixed-signal semiconductors for communications, IoT, consumer, industrial and automotive applications. The company provides a broad range of standard products to customers worldwide. MagnaChip has more than 40 years of operating history and a portfolio of approximately 1,200 registered patents and pending applications, together with extensive engineering, design and manufacturing process expertise.
