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Светодиодный светильник

Описание:
The PMP10171 reference design is a boost LED driver with four outputs. It has an input voltage range of 10 .. 30V and provides 500mA at 40V maximum. A microcontroller provides an adjustable PWM signal for adjusting the brightness of the LEDs.

Возможности:

Four Channels PWM-Dimming by Microcontroller Only Ceramic Capacitors for High Reliability

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Описание:
The PMP10218 reference design provides an isolated 3.5V/0.12A output from a wide input range (138-264VAC). The UCC28722 uses primary-side regulation which eliminates the need of an optical coupler. This design delivers additional cost savings by employing a bipolar power switch.
Возможности:

Wide input voltage range Low cost solution BJT drive Over current, over voltage and short-circuit protected Test report available

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Описание:
This SEPIC converter regulates current in 3 series white LEDs to 0.24A while operating over an input voltage range of 8.7V - 16.5V. The SEPIC operates at 1.2MHz, allowing the circuit to occupy an area of only 10mm x 20mm. Applications include an LED backlight for portable medical devices.
Возможности:

Low cost, small area, integrated FET design Very good efficiency (86% at full load, 12Vin) External PWM signal linearly controls LED current Low profile (1.8mm max height) Optional open LED status output signal

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This in an automotive boost LED driver designed to drive an LED string of up to 34V at a maximum of 34W of output power. This solution as designed passes CISPR 25 class 3 EMC requirements and is capable of 10:1 analog dimming. High side current sensing allows one end of the LED string to be tied to system ground for ease of connections.
Возможности:

CISPR 25 Class 3 compliant 10:1 Analog dimming capable High side current sense allows the LED string to connect directly to ground Up to 34W output power Low LED current ripple

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This TI Design showcases a TPS92515 small-form factor LED driver optimized to drive up to 5 infrared (IR) LEDs for industrial cameras and other general lighting designs. It can drive up to 1A through LED loads of up to 9.5V from a 24V input source. The buck topology is implemented as a secondary-stage LED driver which offers a simple, high performance and a cost effective lighting solution. Additional design flexibility includes analog and PWM dimming (including shunt FET dimming) support as well as EMI filtering designed to meet FCC part 15 class B conduction requirements.
Возможности:

Optimized for infrared LEDs and other small form factor LED lighting applications FCC part 15 class B tested EMI Small inductor size (4mm X 4mm) Analog and PWM dimming Supports high frequency shunt FET dimming up to 30 kHz

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Описание:
This reference design contains a unique LED Driver to be supplied out of a single or a dual cell lithium ion battery. The circuit in SEPIC topology accepts input voltages as low as 1.8V to 8.4V. The TPS43000 was chosen for handling low input voltages. Current regulation is provided with a shunt resistor and operational amplifier (TLV6001U) circuit.
Возможности:

Works with an input voltage range of 1.8V to 8.4V Reasonable efficiency For LED with 0.8A current and about 3.3V output voltage Total board size is 47mm x 47mm The design is built and tested

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This reference design uses the TPS40211 current mode controller in a boost converter to regulate the current in a series string of 12 LEDs (42V) at 0.35A. Efficiency is greater than 94%.
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The PMP5632 is a reference design for a diagnostic device. It's a sepic LED driver with analog dimming.
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Данный проект LED-драйвера с переменным входным напряжением 230 В (PMP6020) оптимизирован по габаритам для использования во встроенных светильниках или светильниках down light и имеет возможность затемнения с помощью использования стандартных настенных симисторных диммеров. Он характеризуется низким уровнем пульсации тока LED и коэффициентом мощности свыше 0,9 без использования индукторов или трансформаторов.

Данный базовый проект имеет характер программного решения.

Возможности:

  • Совместим с симисторными диммерами
  • Коэффициент мощности свыше 0,95
  • Пульсация тока LED менее 25% при большой доле использования LED
  • Низкий уровень наведённых электромагнитных помех, отсутствие излучаемых электромагнитных помех
  • КПД 89% при переменном входном напряжении 230 В

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PMP6025 is a simple, magnetic-free, AC linear LED light engine design utilizing TPS92411 floating switches to deliver approximately 400 lumens when supplied with 120V mains AC. The form factor has been optimized to fit standard E12 Candelabra Edison Screw (CES) light bulb bases. EMI, Power factor and THD performance easily exceed all regulatory requirements.

Возможности:

Power Factor > 0.95, THD < 20% Suitable for E12 Base Bulbs and Small Custom Form Factor Lighting Products Achieves > 400 lm output Triac Dimmable LED Current Ripple ~ 40%, Improves Utilization and Eases Eye Strain Very Low Conducted EMI, No Radiated EMI

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The LM5021-2 is an off-line controller that can work in CCM and DCM. A pulse skip mode improves the efficiency of this isolated flyback, and flattens the curve at most loads. It is also suitable for power line communication PSU.

Возможности:

Ability for the power supply to work in both CCM and DCM mode Wide Vin capability (90 to 275V AC) Duty cycle restriction to 80% 84% full load efficiency and over a wide range of load Gives the user the flexibility to do external slope compensation with LM5021-2

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The PMP9730 reference designemploys the UCC28051 power factor correction controller to implement a single stage PFC-Flyback AC/DC converter that generates an isolated 12V output at 3A from a universal AC input. The design features UCC28910 primary side regulation Flyback switcher for generating the VDD bias rails and the UCC24610 for 2ndary side synchronous rectification. This provides an excellent solution for systems such as motor drives requiring an isolated bus voltage, good power factor and high efficiency.

Возможности:

89% 4-pt average efficiency 90% peak efficiency >0.85 Power factor at 100% load No aluminum capacitors for small size and high reliability Small form factor 50mm X 50mm x 18mm (2" X 2" X 0.7")

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This reference design delivers a low radiated EMI solution with boost converter TPS61088. By minimizing the high di/dt critical path area, using an integrated ground plane next to the topside signal layer, placing an appropriate RC snubber at the SW node, this reference design can get more than 6dB margin in the EN55022 and CISPR22 class B radiation test. The output power capability of this reference design is 18W. The whole solution size is only 4.6cm².
Возможности:

2.7V to 4.2V input voltage range 5V/3A, 9V/2A and 12V/1.5A output capability More than 6dB margin in EN55022 and CISPR22 class B radiation test Small solution size Fit for power bank, blue-tooth speaker application, etc.

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This reference design is targeted at space-limited portable applications. The devices in the design operate from either a USB port or AC adapter. The solution has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer. The reference design is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded. The charger power stage and charge current sense functions are fully integrated. The board function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq24040. The fast charge current value is also programmable via an external resistor.

Возможности:

# Series Cells: 1S Max Input Volts: 30V Max Charge Current: 1A Topology: Linear Mode

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В данном базовом проекте TI реализуется решение датчика тока на низкой или высокой стороне с широким динамическим диапазоном, который достигается благодаря использованию уникальной технологии переменного усиления. Переменное усиление в аппаратной части позволяет добиться меньшего времени отклика, чем при использовании других технологий. В проекте использован высокоскоростной токовый шунт с несколькими значениями усиления INA225 совместно с компаратором токового шунта с выходом с топологией открытого коллектора INA300.

 

Возможности:

  • Измерение тока в диапазоне от 50 мА до 20 А
  • Измерение тока на низкой или высокой стороне
  • Одно напряжение питания

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TIDA-00476 is comprised of a single DC-DC power stage, which can work as a synchronous buck converter or a synchronous boost converter, enabling bidirectional power flow between DC power source and energy storage system. Operating in synchronous buck mode, the system works as a MPPT controlled DC-DC converter which can charge a battery from a solar panel or DC Source. The same power stage can be operated as a synchronous boost to drive a DC load with configurable constant current and constant voltage limits (CC/CV), from an energy storage system such as lead acid battery. The power stage is digitally controlled by a MSP430 microcontroller, which implements the closed loop for controlling the power stage with required algorithms for MPPT, battery charge profiling and DC-Power conversion for load.

Возможности:

Single bidirectional power stage working as both synchronous buck battery charger and synchronous boost CC/CV converter. High efficiency of 95% as charger to store energy and 90% as CC/CV converter to power loads. Perturb & Observe (P&O) based MPPT tracking algorithm. Robust Power stage with built in protection for Overcurrent, Overvoltage and Reverse Polarity Connection. Fully tested and validated as a MPPT based lead acid battery charger and CC/CV converter with LED & resistive loads. Simple use PCB form factor of 85 x 50 mm. provides a ready platform for single stage bidirectional power conversion needs of energy storage, DC Home and low power UPS systems.

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Типовое решение TIDA-00488 демонстрирует ультраэкономичный и возобновляемый метод питания беспроводных датчиков окружающей среды с использованием энергии дневного света для продления времени работы батарей. Эта конструкция использует ультраэкономичное решение TI для управления питанием от различных источников: платформу ультраэкономичного беспроводного микроконтроллера SimpleLink™, работающего на частоте до 1 ГГц; сенсорные технологии определения уровней освещенности, влажности и температуры, непрерывно работающие от системы сбора энергии и позволяющие прерывать мониторинг при работе от резервных батарей. 

Возможности:

  • Работает полностью от солнечной батареи при достаточном уровне освещенности;
  • Поддерживает прерывистый режим, переключаемый для работы в помещении;
  • Уровни освещенности;
  • Длительная работа от батарей (до 10 лет) в прерывистом режиме;
  • Определение уровней естественной освещенности внутри здания для контроля систем освещения помещений;
  • Мониторинг температуры, относительной влажности и освещенности.

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This verified design can accurately measure current, voltage and power on a bus as high as 400 V using an I2C- or SMBUS-compatible interface. This design is targeted towards industrial applications where there is a need to measure system current accurately with bus voltages greater than 40 Volts such as Solar inverters, HEV/EV systems and Source generation for AC/DC electronic loads and power sources. This is a low cost non-isolated solution for high voltage current monitoring. It uses INA226 and OPA333 along with a 600-V P-FET transistor.

Возможности:

• The integrated load-dump protection reduces external voltage clamp cost and size • Onboard load diagnostics report the status of the speaker through I2C, which reduces external components needed for diagnostic coverage • TLV320AIC3104-Q1 + TAS5411-Q1 combo allows for reduced power consumption, reduced heat and reduced peak currents in the electrical system • TAS5411-Q1 provides up to 8W output power for loud, clear audio in an unpredictable emergency environment • Additional output from the TLV320AIC3104-Q1 can be used for the head unit or other car audio needs and eliminates the need for another device • Supports Bus Voltages between 40 and 400 Volts • Current, Voltage and Power Monitor • I2C-/SMBUS-compatible interface • High accuracy • Low cost

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Описание:
The TIDA-00678 TI design showcases a solution for an automotive LED tail light application (Tail/Stop, Turn, Reverse) by using the TPS92630-Q1 linear LED driver powered by an upstream boost converter (TPS40210-Q1) which is directly supplied through a smart reverse battery diode off the automotive battery voltage. The design guide includes EMI/EMC radiation and pulse tests conducted by CISPR25 and ISO 7637-2 and highlights potential cost savings and efficiency (power dissipation, system thermals). For a similar design with the TPS92630-Q1 driven by a Buck Converter please see TIDA-00677. For a similar design with the TPS92630-Q1 driven directly from car battery, please see TIDA-00679.

Возможности:

Efficiency-optimized design Load dump tolerant Operation through cold crank Smart reverse battery protection CISPR-25 tested EMI/EMC

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