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
]]>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.
]]>Primarily intended for smart phone and tablet LCD panel’s driver IC.
The positive charge pump has an internal switch and typically can support output current up to100mA at VCI=3.3V.
Negative charge pump has an internal switch to generate -1 ratio of VSN and typically can support output current up to 120mA at VCI= 3.3V.
The pump clock can be synchronized with external signal from driver IC or can be generated by internal circuit fixed to 300kHz.
The TCS3510 is available in a thin12-pin 2.4×1.5 mm UTDFN green package.
]]>TCS5317 uses current mode,fixed frequencyarchitecture which can clamp the inductor peak currenteach cycle. The switching frequency is programmableby an external frequency setting resistor. It drives anextemal MOSFET to boost up the output voltage froma 4.5V to 28V input supply. The TCS5317 regulatesthe current in each LED string to the programmedvalue set by an external current setting resistor. TheTCS5317 current matching can achieve 1.5% andregulation accuracy can reach +2%.
A 3uA shutdown current and 0.85V (LED@180mA)feedback voltage and Maximum 65V output allows forup to 18 high-power LEDs in series will greatlyimprove efficiency and reduce power dissipation.
The device supports pulse width modulation (PWM)brightness dimming. During digital PWM dimming.the WLED current is tumed on/off at the duty cycleand frequency determined by the PWM signal on thePWMI pin.
The TCS5317 integrated multiple protect functions,such as LED Open, LED Short, Output Over Voltage.Over thermal, Input Over Current, and Under VoltageLockout(UVLO),these protection will prevent theLCD backlight from damage.
TCS5317 is available in 16pin SOP and TSSOP (EP)packages.
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