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ПроизводительLinear Technology
СерияLTC4120-4.2
МодельLTC4120EUD-4.2#TRPBF

Wireless Power Receiver and 400mA Buck Battery Charger

Datasheets

  • Скачать » Datasheet, PDF, 890 Кб, Файл закачен 02-10-2017
    LTC4120/LTC4120-4.2 - Wireless Power Receiver and 400mA Buck Battery Charger
    Выписка из документа ↓
    LTC4120/LTC4120-4.2
    Wireless Power Receiver and
    400mA Buck Battery Charger
    FEATURES DESCRIPTION Dynamic Harmonization Control Optimizes
    Wireless Charging Over a Wide Coupling Range
    n Wide Input Voltage Range (12.5V to 40V)
    n Adjustable Float Voltage (3.5V to 11V)
    n Fixed 4.2V Float Voltage Option (LTC4120-4.2)
    n 50mA to 400mA Charge Current Programmed with a
    Single Resistor
    n В±1% Feedback Voltage Accuracy
    n Programmable 5% Accurate Charge Current
    n No Microprocessor Required
    n No Transformer Core
    n Thermally Enhanced, Low Profile 16-Lead
    (3mm Г— 3mm Г— 0.75mm) QFN Package The LTCВ®4120 is a constant-current/constant-voltage wireless receiver and battery charger. An external programming resistor sets the charge current up to 400mA. The
    LTC4120-4.2 is suitable for charging Li-Ion/Polymer batteries, while the programmable float voltage of the LTC4120
    accommodates several battery chemistries. The LTC4120
    uses a Dynamic Harmonization Control (DHC) technique that
    allows high efficiency contactless charging across an air gap. n The LTC4120 regulates its input voltage via the DHC pin.
    This technique modulates the resonant frequency of a
    receiver tank to automatically adjust the power received
    as well as the power transmitted to provide an efficient ...

Цены

Корпус / Упаковка / Маркировка

Корпус3x3 QFN-16
Код корпусаUD
Индекс корпуса05-08-1691

Параметры

Charge TerminationTimer
Demo BoardsDC2181A-A,DC2181A-B,DC2386A-B
Design ToolsLTspice File
Экспортный контрольнет
Float Voltage4.2V В
Max Charge Current0.4 A
Number of Cells1
Рабочий диапазон температурот 0 до 85 °C
Type of ChargerSwitching

Экологический статус

RoHSСовместим

Другие варианты исполнения

LTC4120

Application Notes

  • Скачать » Application Notes - AN138, PDF, 1.3 Мб, 01-12-2012
    Wireless Power User Guide
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    Application Note 138
    October 2013
    Wireless Power User Guide
    Trevor Barcelo OVERVIEW
    An inductive wireless power system consists of a transmitter that generates a high frequency alternating magnetic
    field and a receiver that collects power from that field.
    The resonant coupled system described here provides for
    increased power transmit distance and reduced alignment
    sensitivity, with no need for a coupling core. To build a wireless power system four items are required:
    transmitter electronics, transmit coil, receive coil and
    receiver electronics. The LTC4120 wireless synchronous
    buck charger combined with minimal external circuitry
    comprises the receiver electronics (Figure 1). Please see
    the LTC4120 product page for more details including the
    data sheet and demo board design files.
    L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
    Technology Corporation. All other trademarks are the property of their respective owners. Figure 1. LTC4120 Receiver Demo Board (Rx Portion of DC1969A Kit) an138fc AN138-1 Application Note 138 Figure 2. Implementation of Basic Transmitter Reference Design (Tx Portion of DC1969A Kit) Figure 3. Proxi-Point Transmitter Figure 4. Proxi-2D Transmitter an138fc AN138-2 Application Note 138
    Transmitter Solutions BASIC TRANSMITTER Currently there are four transmitter options available for
    design or off-the-shelf purchase: The basic transmitter for the LTC4120, described in the
    following sections, combined with a receive coil and
    LTC4120-based receiver electronics can be used to
    produce a wireless battery charging system. This wireless battery charging system enables evaluation of the
    LTC4120 using standard components. 1. Basic: This wireless power design (Figure 2) was ...

Модельный ряд

Серия: LTC4120-4.2 (4)

Классификация производителя

  • Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers
  • Power Management > Battery Management > Wireless Power Transfer

Варианты написания:

LTC4120EUD-4.2TRPBF, LTC4120EUD-4.2 TRPBF, LTC4120EUD4.2#TRPBF, LTC4120EUD 4.2#TRPBF

На английском языке: Datasheet Linear Technology LTC4120EUD-4.2#TRPBF

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