Part Details for LMC555 by National Semiconductor Corporation
Overview of LMC555 by National Semiconductor Corporation
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Price & Stock for LMC555
| Part # | Distributor | Description | Stock | Price | Buy | |
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ES Components | NSC LMC555 BARE DIE | 42 in Stock |
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Part Details for LMC555
LMC555 CAD Models
Resources and Additional Insights for LMC555
Reference Designs related to LMC555
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PMP9463 用于 Xilinx Ultrascale™ Kintex® FPGA 多路千兆位收发器 (MGT) 的电源解决方案
The PMP9463 reference design provides all the power supply rails necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Ultrascale™ Kintex® FPGAs. It utilizes a PMBus interface for current and voltage monitoring and meets Xilinx's low output voltage ripple requirement
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6V-16V Input Four Phase Synchronous Boost Converter Audio Amplifier (25V@24A) Reference Design
This 600W four phase synchronous boost supplies 25V @ 24A from a 6V - 16V input. Four phase operation allows fewer input and output capacitors and better thermal balancing with surface mount components.
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Power Solution for an Automotive Fuel Injector
PMP7966 is a 4-phase boost converter rated for 52V output at 2.5A from an input voltage of 6V to 42V. This design uses LM5122 boost controllers at a switching frequency of 100 kHz each phase: resulting in 400 kHz input and output ripple. 680μF aluminum electrolytic capacitors are used at the output of each phase: providing hold-up to support large transient currents.
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TIDA-00261 具有 256 微步进功能的双极步进电机系统参考设计
The TIDA-00261-BOOST-DRV8711 is an 8-52V, 4.5A, bipolar stepper motor drive stage based on the DRV8711 Stepper Motor Pre-driver and CSD88537ND Dual N-Channel NexFET™ Power MOSFET. The module contains everything needed to drive many differen
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9.8~13.5-V input: 46-V 300-W output interleave boost reference design
This reference design is a 300-W power output interleaving combination of two boost converters using LM5155 controller. Each converter outputs continuous 150-W and 200-W peak. A LMC555 circuit generates 150k-Hz square wave signal and its anti-phase signal for synchronous clock for the two LM5155: making two converters working with 180 ° phase shift: which helps reduce the output voltage ripple. An amplifier samples input current of the two converters: outputs error signal VC to control slave phase to share current with master phase. There is only 4.6 °C temperature difference between two phases in the thermal result: good current sharing is achieved. Efficiency of the design is higher than 91% at 400-W peak output. Peak to peak ripple is within 250-mV during 200-W to 400-W transient. The design shows a valid way to expand the output power by paralleling two boost converters.
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PMP8000 高效小尺寸 150W 同步降压参考设计
PMP8000 is a single-phase synchronous buck converter rated for 5V output at 30A from an input voltage of 12V. This design uses the LM27403 synchronous buck controller and CSD87350Q5D power block MOSFETs provide maximum efficiency when combined with a 250nH ferrite output inductor. The design solu
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PMP8877 基于 UCD3138 数字控制器的 1/8 砖型隔离式 DC/DC 电信电源模块
PMP8877 is a full-function 1/8th brick isolated DC/DC telecom power module based on the UCD3138 digital power controller. The reference design features secondary side control and hard switching full bridge power topology to deliver 12V/180W of output power operating across a wide range 36V-72V in
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Half-bridge point-of-load converter reference design with GaN technology
This reference design modifies the inboard transformer turns ratio from 5:1 to 3:1 to reduce input the range. The board supports input voltages from 24 V to 32 V and output voltages between 0.5 V to 1.0 V with output currents up to 40 A. This topology efficiently supports the high step-down ratio while providing significant output current and controllability. The original EVM was designed to evaluate the LMG5200 GaN half-bridge power stage and the TPS53632G half-bridge point-of-load (PoL) controller. This board implements the converter as a single-stage hard-switched half-bridge with a current-doubler rectifier. The board is a redesign of the LMG5200POLEVM-10 evaluation module.
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Power Solution for an Engineering Equipment Fuel Injector
The PMP7967 converts a DC input of 6V-42V to an output of 90V at 1.5A. The design uses four interleaved LM5122 boost controllers with each controller switching at 100kHz. The resulting 4-phase boost converter has a ripple frequency of 400kHz. Freqeucny can also be synchronized to an external signal. Four 330μF aluminum electrolytic capacitors are used at the output to support sudden load current demands in the fuel injector solenoids.
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Solid State Relay 24V AC Switch with Galvanic Isolation Reference Design
The solid state relay 24V AC Switch reference design is a single relay replacement that enables efficient power management for a low power alternative to standard electromechanical relays. The OFF-mode provides energy to the system controller and the ON mode can switch fast enough to allow backup battery charging where electromechanical relays cannot. The internal transformer enables isolation and a voltage multiplier ensures enough current to control other relays in the rest of the system.
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35V to 60V Input: 600W Output Dual-Phase Buck Converter Design with Greater than 97% Efficiency
This 600W wide voltage input dual phase power converter uses two emulated current-mode controllers 180 degrees out of phase to minimize input and output ripple current. Compared to conventional isolated power converters: this synchronous buck architecture provides a reduced footprint and BOM cost at higher levels of efficiency: greater than 97% over several operating conditions.
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7.5Vin to 10Vin; 11.5Vout @ 65A; 4-Phase Synchronous Boost Converter
A 4-phase synchronous boost converter that accepts an input voltage of 7.5Vin to 10Vin and provides an output of 11.5Vout capable of delivering 65A.
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Power Supply for NB-IoT Modems in Smart Meters with LiSOCl2 Batteries Reference Design
This reference design provides a power supply solution for NB-IoT (Narrow Band -Internet of Things ) in smart meter with LiSOCl2 Batteries applications. The design is a low standby current: high efficiency solution that will extend battery use time more than 50%.
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Automotive Multi-Phase Synchronous Buck Power Module Reference Design
The PMP10979 is a highly efficient: multi-phase synchronous buck power module. The input voltage range is 11V to 24.30V: with an output of 13.50V at 95A. The design is intended for automotive applications.
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10.8Vin to 13.2Vin; 48Vout @ 7.3A; 4-Phase Synchronous Boost Converter
A 4-phase synchronous boost converter that accepts an input voltage of 10.8Vin to 13.2Vin providing an output of 48Vout capable of delivering 7.3A.
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PMP9449 Altera® Arria® V GX FPGA 电源解决方案
The PMP9449 reference design provides all the power supply rails necessary to power Altera's Arria® V GX family of FPGAs. It utilizes a TPS38600 to monitor the input supply and provide power on sequencing. This design features low cost, small footprint discrete ICs and is powered
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Factory Automation (FA) Isolated Sensor Reference Design
Dual isolated half-bridge converters are implemented using a single DRV8801 motor driver controller. The DRV8801 controller operates from a 24Vdc input and at a fixed 50% duty: generated using the low cost LMC555 timer. Transformer secondaries are rectified and regulated to 5V and 15V outputs using TPS7A4901 linear regulators: which supply 0.15A each. This method allows the opto-coupler to be eliminated: reducing cost and complexity. Design options allow single or dual outputs per transformer.
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Multi-output Multi-buck 20W Power Supply for Xilinx Zynq FPGA Applications Reference Design
PMP9335 is designed for Xilinx Zynq FPGA applications utilizing the TPS84A20 and TPS84320. This design uses an external timer to synchronize the switching frequency to 300 kHz. It also employs a controlled power up and power down sequence.
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TIDA-00721 无源 NFC 温度贴片参考设计
TIDA-00721 是一种完整的参考设计，能够在灵活的补丁形式中使用无源 NFC 标签来实现准确的温度测量。该系统通过 NFC 接收器（如已启用 NFC 的智能手机）标签来提供温度读数。高精度温度传感器 (LMT70) 与 ADC (ADS1113) 对接，而温度数据使用 NFC 应答器 (RF430CL330H) 发送到阅读器。
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TIDA-01474 1080p 激光电视参考设计
This projection reference design presents a DLP® technology subsystem that is capable of creating displays up to 120 frames-per-second (fps) at only a single frame delay. The design focuses on the DLP470NE 1080p digital micromirror device (DMD) within the design to create a 1920×1080 display at 120 Hz, which can be integrated into a variety of end equipments such as gaming, home theater, laser TV, and simulation. Many personal electronics and video simulation applications require high-frame-rate, lowlatency solutions to display high-quality, fast-moving data and avoid introducing system delay between the video source and the projected image.
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Power Reduction Using Dynamic Switching Reference Design
The TIDA-00675 shows the power reduction benefits of dynamically switching a load on/off using a load switch. The design guide shows how frequency of switching: duty cycle: and the use of a discharge resistor can have an impact on power consumption.
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TIDEP0018 用于 Sitara 处理器的并行摄像机接口
This camera interface design connects to a 10-bit parallel interface to the AM335x general purpose memory controller (GPMC) 16-bit multiplexed address/data bus. This design consumes roughly 150mW less power than typical USB solutions, and is ideal for applications like portable data terminals, ru
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PMP4123 36Vdc-75Vdc 输入、6V/20A 输出有源钳位正向
PMP4123 参考设计可通过标准 48V 电信输入，在 120W 时提供 6V 的电源，效率达 94% 以上。此设计使用 UCC2897A 有源钳位控制器和 ISO721 数字隔离器及 TPS28225 驱动同步整流器。该电路内置行业标准四分之一砖型封装。
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PMP1903 反向降压/升压转换器，300mA 时 5V 输入至 -12V，使用 TPS40200
PMP1903 uses the TPS40200 buck controller in an inverting buck boost configuration. This topology takes a positive input and generate a negative output. In this case 5V is converted to -12V at 300mA. The design operates at 500KHz, with ceramic input and output capacitors for small size.
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PMP6717 具有 PMBus 且可适用于 DM816x 和 C6A816x 处理器的 TPS40400 SmartReflex 降压稳压器参考设计
用于 DM816x 和 C6A816x 处理器的 SmartReflex AVS 电源
- TIDA-00830 具有自动调整功能的 24V 步进电机参考设计
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PMP9667 用于企业级 SSD 存储插件卡控制器 ASIC 的内核稳压器
The PMP9667 utilizes the TPS53513 DCAP3 Mode SWIFT step down dc-dc converter to power the SSD Controller ASIC core rail at 1Vout/8A with only 250mm2 of total power supply area, and 19 total components. This design meets the high power density, small form factor requirements of PCIE-based HDD and
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50-Ohm 2-GHz Oscilloscope Front-end Reference Design
This reference design is part of an analog front-end for 50Ω-input oscilloscope application. System designers can readily use this evaluation platform to process input signals from DC to 2 GHz in both frequency-domain and time-domain applications.
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PMP6015 120Vac 晶闸管可调光 LED 驱动器参考设计
This reference design provides a high-brightness LED driver based on the TPS92075. It is designed to operate with an input voltage in the range of 90VAC to 132VAC with a 120 VAC nominal input voltage. This design is set up for an 185mA output current with an output voltage range of
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Multiple Output Power Solution for Kintex 7 Application
The PMP7804 reference design provides all the power supply rails necessary to power the Xilinx ® Kintex ® 7 series family of FPGAs. This design utilizes Simple Switcher power modules along with the LM2121x low voltage synchronous buck regulators for
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Efficient: Step-down: High-power LED Driver with Strobe and Synchronization for Fire Alarms
This reference design demonstrates an efficient: step-down: high-power LED driver with strobe and synchronization for fire alarms. A 3-A LED is driven from a common: quasi-regulated 12-V input bus at over 85% efficiency. The circuit supports a clock input for the strobe function which allows synchronization of multiple LED drivers to a common clock source.
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TIDA-00405 3D 打印机控制器 (12V)
This design is a complete system for controlling 3-axis, single extruder-based 3D printers. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for the hot bed heater, extruder heater, and co
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High-Efficiency 4 Phase Synchronous Boost Conv for Automotive Trunk Amplifier App Reference Design
PMP7969 is a very high efficiency 4 phase boost controller synchronizable to external clock. Light load efficiency is excellent due to phase shedding capability. Synchronous rectifier also improves efficiency. High effective switching frequency obtained with multiphase over single phase: and current sharing accuracy of ±10%. Bypass mode capable when Vin > Vout.
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Universal buck converter reference design for educational purposes
This universal buck converter reference design features a voltage mode buck converter in combination with a tiny: onboard electronics load to demonstrate the relationship in between small signal analysis in frequency domain (= network analysis) and large signal analysis in time domain (= transient response). The loop bandwidth has been squeezed to maximum with a cross over frequency at 20 kHz+. When using this converter design in mass production: it’s recommended to use compensation values for a cross over frequency of 15 kHz with a safe gain margin. In this design: the loop bandwidth has been exhausted to test Bode function of measurement equipment and demonstrate the impact of drain jitter (= subharmonic noise) regarding power integrity.
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