TCS3511
Programmable Dual Output LCD Bias for Smartphone and Tablets
产品描述
The TCS3511 is designed to support positive / negative driven TFT-LCD panels up to10” 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 5.5V. It is optimized for products powered by single-cell batteries (Li-Ion, Ni-Li, and Li-Polymer) and symmetrical output currents up to 120mA. An LDO and charge pump generate dual outputs at +5V(default) and -5V(default), whose voltages can be programmed via an I2Ccompatible interface. Optimized step-up, LDO and charge pump converters maximize conversion efficiency, exceeding 85%.
TCS3511 integrates 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 +6V and -4V to -6V, respectively, as well as programming additional registers on the device.
The device is a RoHS compliant 15-Ball 2.07mm X 1.24mm X 0.64mm WLCSP package.
主要特点
- Wide 2.7Vto5.5V Operating Input Range
- Dual Output Regulator with Single Inductor
- Programmable Output Voltage
- Positive Output Voltage Range:
- +4V to +6V (100mV/Step)
- Negative Output Voltage Range:
- -4V to -6V (100mV/Step)
- ±1.5% Output Voltage Accuracy
- Excellent Line Regulation
- Advanced Power-Save Mode for Light Load
- Support I2C 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 an 15-Ball WLCSP
- -40℃ to +85℃ Operating
- Temperature Range
典型应用图
订购资讯
| Part Number | Driver Capability | Package Type | Package Qty | Operating Temperature Range | Eco Plan | Lead/Ball Finish |
|---|---|---|---|---|---|---|
| TCS3511-WO | +/-120mA | 15-Ball WLCSP | 3000pcs | -40~85°C | Green | Sn/Ag/Cu |
