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LP6283 bảng dữ liệu(PDF) 1 Page - Lowpower Semiconductor inc |
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LP6283 bảng dữ liệu(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 10 page  LP6283–00 Version 0.0 Jul.-2016 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 10 Preliminary Datasheet LP6283 Power Management ICs for TV / Monitor General Description The LP6283 generates all the supply rails for thin-film transistor (TFT) liquid-crystal display (LCD) panels in TVs and monitors. It includes boost and buck regulators, VGH and VGL charge pump regulators, gate pulse modulator (GPM) , HV LDO, voltage detector (XAO) and VCOM OP. The LP6283 supports input voltage from 8V to 14V and is optimized for LCD TV panel and LCD monitor applications running directly from 12V supply. The boost and buck regulators feature internal power MOSFETs and high-frequency operation, allowing the use of small inductors and capacitors, for in a compact solution. Both switching regulators use fixed-frequency, current-mode control architectures, providing fast load-transient response and easy compensation. The VGH and VGL charge-pump regulators provide supply voltages for the TFT gate driver. Both output voltages can be adjusted with external resistive voltage dividers. Order Information LP6283 □ □ □ F: Pb-Free Package Type QVF : TQFN-48 Applications LCD TV/Monitor Features 8V to 14V Supply Input Voltage Range Current-Mode Boost Regulator 20V 3.5A 0.1 Ω Internal N-MOSFET Programmable Over Current Protection Programmable Soft-Start Current-Mode Buck Regulator 16.5V 2A 0.15 Ω Internal N-MOSFET Over Current Protection Adjustable Output Voltage from 1.8V to 3.3V Adjustable VGH Charge Pump Continuous Output Current 50mA Adjustable VGL Charge Pump Continuous Output Current 50mA Gate Pulse Modulator 18V to 35V Positive Supply Input Power-On/Off Sequence Control On-Chip GPM Controller with Adjustable Falling Time and Falling Stop Voltage Voltage Detector (XAO) Adjustable Detecting Voltage ( ±1%) N-Channel Open-Drain Output VCOM OP 5V to 20V Input Supply Voltage ±300mA Output Short-Circuit Current for 1ms 45V/μs Slew Rate 20MHz, −3dB Bandwidth HV LDO 5V to 20V Input Supply Voltage Adjustable Output Voltage ( ±0.5%) Over Current Protection (60mA) Low Dropout Voltage 0.5V (60mA) Selectable Frequency (500kHz/750KHz) External PMOS Isolation Switch Controlled by Gate Drive Signal Over Temperature Protection Power On Sequence Control TQFN 48 Package RoHS Compliant and Halogen Free Pb-Free Package Marking Information Device Marking Package Shipping LP6283 LPS LP6283 YWX TQFN-48 Y: Y is year code. W: W is week code. X: X is series number. |
Số phần tương tự - LP6283 |
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Mô tả tương tự - LP6283 |
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