MAX17094 内置开关的boost调节器，集成7通道驱动
max17094 内置开关的boost调节器，集成7通道驱动器、vcom校准、运算放大器和ldo
the max17094 includes a high-performance step-up regulator, a 250ma low-dropout (ldo) linear regulator, a high-speed operational amplifier, a digitally adjustable vcom calibration device with nonvolatile memory and i²c interface, and seven integrated high-voltage level shifters. the device is optimized for thin-film transistor (tft) liquid-crystal display (lcd) applications.
the step-up dc-dc converter is a current-mode regulator that provides the regulated supply voltage for panel source driver ics. the current-mode architecture provides fast-transient responses to pulsed loads typical of source driver loads. the high switching frequency, which is programmable to any frequency between 450khz to 1.2mhz with a single resistor, allows the use of ultra-small inductors and ceramic capacitors. the step-up regulator’s soft-start time is controlled by an internal 10ms digital timer that requires no external components; or if desired, the soft-start time can be adjusted by adding a single external capacitor.
the low-voltage ldo linear regulator can provide at least 250ma. the output voltage is accurate within ±2%.
the high-voltage, level-shifting scan driver is designed to work with panels that incorporate row drivers on the panel glass. its seven outputs swing from +30v to -10v and can swiftly drive capacitive loads.
the high-performance op amp is designed to drive the lcd backplane and features 20mhz bandwidth, 45v/µs slew rate, and 150ma output currents.
the programmable vcom calibrator is externally attached to the vcom amplifier’s resistive voltage-divider and sinks a programmable current to adjust the vcom voltage level. an internal 7-bit digital-to-analog converter (dac) controls the sink current. the dac is ratiometric relative to avdd and is guaranteed monotonic over all operating conditions. the calibrator includes a nonvolatile memory device (ivr) to store the desired vcom voltage level. the 2-wire i²c interface simplifies production equipment.
the max17094 is available in a 48-pin, 6mm x 6mm tqfn package with a maximum thickness of 0.8mm for thin lcd panels.
关键特性
1.8v to 5.5v in supply voltage range 450khz to 1.2mhz adjustable frequency current-mode step-up regulator fast-transient response integrated 14v, 2.5a, 150mω mosfet high efficiency (> 85%) low-dropout linear regulator high-accuracy output voltage (2.0%) internal digital soft-start high-performance operational amplifier 200ma output short-circuit current 45v/µs slew rate 20mhz, -3db bandwidth rail-to-rail inputs and outputs high-voltage drivers +30v to -10v outputs i²c programmable vcom calibrator 7-bit adjustable current-sink output nonvolatile ivr memory thermal-overload protection 应用/使用
笔记本电脑显示器
电源哪些部分影响电源的环路？好的环路有哪些指标决定？
资本加速注入，智能锁市场发展潜力巨大
OTL功率放大电路中的自举电路是怎么工作的
iPhone8销售低潮，还有黄屏等小毛病，是买iPhone7还等iPhoneX的上市？
基于区块链技术的分散式数字交通服务系统Drife介绍
MAX17094 内置开关的boost调节器，集成7通道驱动
英国厂商抢发全球第一款DX11笔记本 价格上万
发动机总成包含哪些部件_发动机总成包括什么_发动机总成图解
2021年半导体行业复苏或加快
有机RFID标签带来的潜在效益分析
CAAI副理事长杨强：研究迁移学习有什么用
自动驾驶车辆面对碰撞时如何将损失降到最低?
【PCAN工程机械应用系列】虹科PCAN卡在隧道挖掘机器电控系统中的应用
工业互联网及驱动的制造业数字化转型
免费下载 I 白皮书：3D-IC 设计的挑战和需求
MPPT集成电路MPT612的特性优势及应用电路
无触点稳压器
RISC-V将会在物联网市场中蓬勃发展
通过可视化的设备状态监视实现细微化工艺段的稳定生产
大联大世平集团推出基于ON Semiconductor产品的300W PC电源解决方案
the max17094 includes a high-performance step-up regulator, a 250ma low-dropout (ldo) linear regulator, a high-speed operational amplifier, a digitally adjustable vcom calibration device with nonvolatile memory and i²c interface, and seven integrated high-voltage level shifters. the device is optimized for thin-film transistor (tft) liquid-crystal display (lcd) applications.
the step-up dc-dc converter is a current-mode regulator that provides the regulated supply voltage for panel source driver ics. the current-mode architecture provides fast-transient responses to pulsed loads typical of source driver loads. the high switching frequency, which is programmable to any frequency between 450khz to 1.2mhz with a single resistor, allows the use of ultra-small inductors and ceramic capacitors. the step-up regulator’s soft-start time is controlled by an internal 10ms digital timer that requires no external components; or if desired, the soft-start time can be adjusted by adding a single external capacitor.
the low-voltage ldo linear regulator can provide at least 250ma. the output voltage is accurate within ±2%.
the high-voltage, level-shifting scan driver is designed to work with panels that incorporate row drivers on the panel glass. its seven outputs swing from +30v to -10v and can swiftly drive capacitive loads.
the high-performance op amp is designed to drive the lcd backplane and features 20mhz bandwidth, 45v/µs slew rate, and 150ma output currents.
the programmable vcom calibrator is externally attached to the vcom amplifier’s resistive voltage-divider and sinks a programmable current to adjust the vcom voltage level. an internal 7-bit digital-to-analog converter (dac) controls the sink current. the dac is ratiometric relative to avdd and is guaranteed monotonic over all operating conditions. the calibrator includes a nonvolatile memory device (ivr) to store the desired vcom voltage level. the 2-wire i²c interface simplifies production equipment.
the max17094 is available in a 48-pin, 6mm x 6mm tqfn package with a maximum thickness of 0.8mm for thin lcd panels.
关键特性
1.8v to 5.5v in supply voltage range 450khz to 1.2mhz adjustable frequency current-mode step-up regulator fast-transient response integrated 14v, 2.5a, 150mω mosfet high efficiency (> 85%) low-dropout linear regulator high-accuracy output voltage (2.0%) internal digital soft-start high-performance operational amplifier 200ma output short-circuit current 45v/µs slew rate 20mhz, -3db bandwidth rail-to-rail inputs and outputs high-voltage drivers +30v to -10v outputs i²c programmable vcom calibrator 7-bit adjustable current-sink output nonvolatile ivr memory thermal-overload protection 应用/使用
笔记本电脑显示器
电源哪些部分影响电源的环路？好的环路有哪些指标决定？
资本加速注入，智能锁市场发展潜力巨大
OTL功率放大电路中的自举电路是怎么工作的
iPhone8销售低潮，还有黄屏等小毛病，是买iPhone7还等iPhoneX的上市？
基于区块链技术的分散式数字交通服务系统Drife介绍
MAX17094 内置开关的boost调节器，集成7通道驱动
英国厂商抢发全球第一款DX11笔记本 价格上万
发动机总成包含哪些部件_发动机总成包括什么_发动机总成图解
2021年半导体行业复苏或加快
有机RFID标签带来的潜在效益分析
CAAI副理事长杨强：研究迁移学习有什么用
自动驾驶车辆面对碰撞时如何将损失降到最低?
【PCAN工程机械应用系列】虹科PCAN卡在隧道挖掘机器电控系统中的应用
工业互联网及驱动的制造业数字化转型
免费下载 I 白皮书：3D-IC 设计的挑战和需求
MPPT集成电路MPT612的特性优势及应用电路
无触点稳压器
RISC-V将会在物联网市场中蓬勃发展
通过可视化的设备状态监视实现细微化工艺段的稳定生产
大联大世平集团推出基于ON Semiconductor产品的300W PC电源解决方案