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EC9232

Multi-Channel TFT LCD Supply; ◆ ?2.5V to 5.5V input supply\n◆ Current-mode boost regulator \n????? - 1.2MHz switching frequency\n????? - Integrated 20V/3.0A 160m? FET\n????? - Fast transient response to pulsed load\n????? - High efficiency up to 90%\n????? - Adjustable high-accuracy output voltage(±1%)\n???? ?- Over current protection\n????? - Over voltage protection\n◆ VGH positive charge pump controller\n◆ VGL negative charge pump controller\n◆ Integrated high performance operational amplifier\n????? - ±350mA output short-circuit current\n????? - 40V/us fast slew rate\n????? - 20MHz Bandwidth\n????? - rail-to-rail output\n◆? Low-voltage detection circuit\n◆ ?GPM controller\n????? - Adjustable falling time\n????? - Adjustable delay\n◆ Thermal shutdown\n◆ Thin 4x4 mm 24-lead VQFN package\n?\n;

The EC9232 is an integrated power supply solution optimized for small to medium size thin-film transistor (TFT) liquid crystal displays (LCD’s). The boost converter operates at the frequency of 1.2MHz. The integrated N channel FET has a typical current limit of 3.0A and can support output voltages up to 20V. The gate-on and gate-off charge pumps provide regulated TFT-LCD gate-on and gate-off supplies. Both outputs can be adjusted by external resistive voltage-dividers. The GPM is a flicker compensation circuit to reduce the coupling effect of gate lines; the gate-shaping timing is controlled by the timing-controller to modulate the Gate-On voltage, VGHM. It also can delay the Gate-On voltage during power-on to achieve a correct power-on sequence for gate driver ICs. Both the power-on delay time and the falling time of the Gate-On voltage are programmable by external capacitor and resistor. The integrated operational amplifier is typically used for LCD VCOM driving; the output can sink or source up to 350mA short-circuit current. This operational amplifier features fast slew rate (40V/us), wide bandwidth (20MHz), and rail-to-rail outputs as well. A built-in voltage detector generates a reset signal when the input voltage drops below a specified level. The reset signal is active low, and the detecting level is decided by an external resistor divider. The EC9232 is available in a thin 24-pin 4x4 mm VQFN green package.\n\n\n\n

EC9232

Multi-Channel TFT LCD Supply

EC9232NNQ1R

絲?。?a target="_blank" title="Marking" href="/9232/marking.html">9232；Package：VQFN24L；Multi-Channel TFT LCD Supply

EUP9232

LI-ION/POLYMERTWOCELLPROTECTOR

G9232

UL94V-0PBTimpeller&frame

G9232E

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