TPS65146RGER ,3-CH LCD Bias w/ LDO, GPM, VCOM Buffer & Reset IC 24-VQFN -40 to 85ELECTRICAL CHARACTERISTICSV = V = 3.3 V, V = V = 9 V, V = 2.5 V, V = 20 V, T = –40°C to 85°C, typic ..
TPS65148 ,4-CH LCD Bias w/ GPM, VCOM, Reset, LCD Discharge, HVS, Ext. Isolation Switch & LDO for GammaELECTRICAL CHARACTERISTICSV = 5 V, V = V = V = 13.6 V, V = 12.5 V, V = 5 V, V = 23 V, T = –40°C to ..
TPS65148RHBR ,4-CH LCD Bias w/ GPM, VCOM, Reset, LCD Discharge, HVS, Ext. Isolation Switch & LDO for Gamma 32-VQFN -40 to 85FEATURES • VCOM Buffer• 2.5V to 6V Input Voltage Range • Reset Function (XAO Signal)• Up to 18V Boo ..
TPS65150 ,3-CH LCD Bias w/ GPM, VCOM Buffer & Gate Driver for Isolation SwitchPin Functions (continued)PINI/O DESCRIPTIONNAME VQFN HTSSOPInput of the VCOM buffer. If this pin is ..
TPS65150PWPR ,3-CH LCD Bias w/ GPM, VCOM Buffer & Gate Driver for Isolation Switch 24-HTSSOP -40 to 85Features 3 DescriptionThe TPS65150 device offers a very compact and1• 1.8-V to 6-V Input Voltage Ra ..
TPS65150PWPRG4 ,3-CH LCD Bias w/ GPM, VCOM Buffer & Gate Driver for Isolation Switch 24-HTSSOP -40 to 85Maximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNIT(2) ..
TSUS5202 ,Infrared emitting diodesElectrical CharacteristicsT = 25 °C, unless otherwise specifiedambParameter Test condition Symbol M ..
TSUS5402 ,Infrared emitting diodesElectrical CharacteristicsT = 25 °C, unless otherwise specifiedambParameter Test condition Symbol M ..
TSV321RILT ,General purpose low voltage rail to rail input/output op-ampFeatures Pin connections (top view)• Operating range V = 2.5 V to 6 V CC• Rail-to-rail input and o ..
TSV324IDT ,General purpose low voltage rail to rail input/output op-ampAbsolute maximum ratings Symbol Parameter Value Unit (1)V Supply voltage 7 V CC(2)V Differential i ..
TSV324IYDT ,General purpose low voltage rail to rail input/output op-ampapplications • Audio driver (headphone driver) • Sensor signal conditioning SO8, MiniSO8, TSSOP8 ..
TSV324IYPT ,General purpose low voltage rail to rail input/output op-amp TSV321, TSV358, TSV324, TSV321A, TSV358A, TSV324A, General purpose input/output rail-to-rail lo ..
TPS65146RGER
3-CH LCD Bias w/ LDO, GPM, VCOM Buffer & Reset IC聽
1FEATURES
APPLICATIONS
DESCRIPTION
XAO
VIN
3.3 V LVOUT
2.5 V/500 mACOM
±120 mA
Boost Converter
and
Over Voltage Protection
LDO
VCOM Buffer
(unity gain)
Reset function
Gate Voltage Shaping
ositive Charge Pump Regulator,
and
LCD Discharge Function
9 V/300 mAGHM
20 V/10 mA
TPS65146
www.ti.com................................................................................................................................................... SLVS869A–NOVEMBER 2008–REVISED JUNE 2009
Compact LCD Bias IC with LDO, VCOM Buffer and Reset Function LCD Discharge Function 2.5Vto 6.0V Input Voltage Range •
Overvoltage Protection Upto 16.5V Boost Converter With 2A Switch •
Thermal Shutdown
Current •
Undervoltage Lockout 650kHz/1.2MHz Selectable Switching •
24-Pin 4×4mm QFN Package
Frequency Adjustable Soft-Start for the Boost Converter Notebook PC•
500mA LDO Monitor•
Reset Function (XAO Signal) Regulated VGH Gate Voltage Shaping VCOM BufferThe TPS65146 offersa very compact power supply solution designedto supply the LCD bias voltages required TFT (Thin Film Transistor) LCD panels running froma typical 3.3Vor5V supply rail. The device integratesa
step-up converter for VS (Source Driver voltage),a positive charge pump regulator for VGH (Gate Driver High
voltage),a logic voltage rail using an integrated LDO anda VCOM buffer driving the LCD backplane.In addition that,a gate voltage shaping blockis integratedfor VGH, modulating the signal (into VGHM) with high flexibilityby
usinga logic input VFLK and an external discharge resistor connectedto RE pin. Also, an external discrete
negative charge pump can be set using the boost converterof the TPS65146to generate VGL (Gate Driver Low
voltage). The integrated reset function together with the LCD discharge function availablein the TPS65146
provide the signals enabling the dischargeof the LCD TFT pixels when powering-off. The device includes safety
features like overvoltage protection (OVP),as wellas thermal shutdown.
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