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TCS3514

TCS3514

Programmable Dual Output LCD Bias for Smartphone and Tablets

Product Description

The TCS3514is designed to support positive/negative driven TFT-LCD panels up to 10” at least (from SFF to MFF like tablets). The two output rails are usually connected to the Source Driver IC. The device uses a single inductor scheme in order to provide the user the smallest solution size possible as well as high efficiency.

It features a highly integrated step-up DC-DC converter with wide input voltage range from 2.7V to 5V. It is optimized for products powered by single-cell batteries (Li-Ion, Ni-Li, and Li-Polymer) and symmetrical output currents up to 150mA. An LDO and charge pump generate dual outputs at +5.8V(default) and -5.8V(default), whose voltages can be programmed via an I2C compatible interface. Optimized step-up, LDO and charge pump converters maximize conversion efficiency.

TCS3514integrates all compensation and soft-start circuitry, which results in a simpler and smaller solution with much fewer external components. High switching frequency (1.2MHz) allows the use of a smaller inductor and capacitor to further reduce the solution size.

The I2C compatible interface allows to control the positive and negative outputs from+4V to +6.5V and -4V to -6.5V, respectively, as well as programming additional registers on the device.

The device is a RoHS compliant 15-Ball

2.07mmX1.24mmX0.58mm WLCSP package

主要特点

  • Wide 2.7V to 5V Operating Input Range
  • Dual Output Regulator with Single Inductor
  • Programmable Output Voltage Voltages
  • Positive Output Voltage Range:
  • +4V to +6.5V (100mV/Step)
  • Negative Output Voltage Range:
  • -4V to -6.5V (100mV/Step)
  • ±1.5% Output Voltage Accuracy
  • Excellent Line Regulation
  • Advanced Power-Save Mode for Light Load
  • Support I 2C Compatible Interface
  • Integrated Compensation and Feedback Circuits
  • 1μA Shut-Down Supply Current
  • Boost Current Mode Operation
  • Over Current Protection
  • Internal Soft-Start Prevents Inrush Current
  • Under Voltage Lock Out
  • Thermal Shutdown
  • Available in a 15-Ball WLCSP
  • -40°C to +85°C Operating
  • Temperature Range

典型应用图

Product Application Image

订购资讯

Part NumberDriver CapabilityMarkingPackage TypePackage QtyTemperatureEco PlanBall Finish
TCS3514 WO+150/150mALUFWLCSP-15B3000pcs-40~85°CGreenSn/Ag/Cu