随笔分类 - IC
摘要：The FT232H is the single channel version, the FT2232H is the dual-channel, and there is also anFT4232Hquad channel part.While these are all logically ...
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摘要：TXS（开漏优化设计），如I2CTXB（上拉优化设计），如SPITXS0108has integrated pull-up resistors to save board space and cost in open-drain applications.The TXS0108 Does NOT n...
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摘要：DESCRIPTIONThe DG449 is a dual supply single-pole/double-throw (SPDT) switches.On resistance is 38 and flatness is 2.6 max over the specified anal...
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摘要：74系列TTL数字逻辑集成电路系国际上通用的标准电路。其品种共分为六大类即74xx(标准) 74LSxx(低功耗肖特基) 74Sxx(肖特基) 74ALSxx(先进低功耗肖特基) 74ASxx(先进肖特基) 74Fxx(高速)只要序列号相同，则逻辑功能完全相同。另外还出现了74系列高速CMOS电路，...
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摘要：集成型5A 40V 宽输入范围升压/单端初级电感转换器(SEPIC) / 反激式(Flyback) 直流到直流稳压器 (Rev. B)描述TPS55340 是一款单片非同步开关稳压器，此稳压器带有集成的 5A，40V 电源开关。此器件可在几种标准开关稳压器拓扑结构中进行配置，这些拓扑结构包括升压、S...
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摘要：LTC3803 - 采用 ThinSOT 封装的恒定频率、电流模式、反激式 DC/DC 控制器特点VIN和 VOUT仅受限于外部元件可调斜率补偿内部软起动200kHz 恒定频率操作±1.5% 基准准确度旨在实现卓越的电压和负载瞬态响应的电流模式操作无最小负载要求低静态电流：240μA扁平 (高度仅 ...
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摘要：引言当今的许多电子设备都需要一个负输出或正输出转换器，有时则是两者均需要。另外，它们还必需采用各种电源运作，包括 USB、墙上适配器、碱性电池和锂电池等。为了从可变输入电压产生不同极性的输出，电源设计师常常采用多种稳压器 IC，因而导致库存元器件品种的增加。LT®3759 可在 1.6V 至 42V...
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摘要：The circuit inFigure 1delivers programming voltages to an EEPROM under the control of an external DAC (not shown).You can replace the DAC with a poten...
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摘要：http://electronics.stackexchange.com/questions/6676/which-sipo-chip-is-better-74hc4094-or-74hc595-or-something-elseI want to drive lots of LEDs in a s...
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摘要：http://forum.eet-cn.com/thread!printPreview.jspa?threadID=1200029698&start=0以245为例，74AC245、74HC245、74AHC245、74ACT245、74LS245这几个有什么区别，各自的应用领域是什么？这些逻辑电平...
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摘要：Configurable Multiple-Function GateSN74LVC1G57SN74LVC1G58SN74LVC1G97SN74LVC1G98SN74LVC1G99
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摘要：The MP2359 is a monolithic step-down switchmode converter with a built-in power MOSFET.It achieves 1.2A peak output current over awide input supply range with excellent load andline regulation. Current mode operationprovides fast transient response and eases loopstabilization. Fault condition protec
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摘要：The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on)high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery p
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摘要：Variable Control Voltage Output Voltage AdjustThis method is accomplished by connecting a variable control voltage througha resistor, R(adjust), to J3−1. The equations provided below calculate R2 andR(adjust) where:For example, if VO,max= 19 V, VO,min = 17 V, V(adjust),min = 0 V, V(adjust),max =3.3
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摘要：DIGITALLY ADJUSTABLE BOOST CONVERTERThe TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power up/down sequencing of the
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摘要：GENERAL DESCRIPTION The AX5511 is a current mode step up converter intended for small, low powerapplications. The converter input voltage ranging from 2.6V to 5.5V. The Output voltage can be set up to 27V. The frequency is 1.2MHz allows the use of small external inductors and capacitors and provides
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摘要：The LM27313 switching regulator is a current-mode boost converter with a fixed operating frequency of 1.6 MHz.The use of the SOT-23 package, made possible by the minimal losses of the 800 mA switch, and small inductors and capacitors result in extremely high power density. The 30V internal switch ma
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摘要：CC1101是一种低成本真正单片的UHF收发器，为低功耗无线应用而设计。电路主要设定为在315、433、868和915MHz的ISM（工业，科学和医学）和SRD（短距离设备）频率波段，也可以容易地设置为300-348MHz、400-464MHz和800-928MHz的其他频率。RF收发器集成了一个高度可配置的调制解调器。这个调制解调器支持不同的调制格式，其数据传输率可达500kbps。通过开启集成在调制解调器上的前向误差校正选项，能使性能得到提升。CC1100为数据包处理、数据缓冲、突发数据传输、清晰信道评估、连接质量指示和电磁波激发提供广泛的硬件支持CC1101是通过SPI方式与MCU相连，
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