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constant

PW5410A_2.0.pdf規(guī)格書(shū)下載

The PW5410A is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. Itproduces a regulated output voltage from 2.7V to 5V input with up to 250mA of output current. Lowexternal parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) makethe PW5410A ideally suited for small, battery-powered applications

標(biāo)簽： pw5410

上傳時(shí)間： 2022-02-11

上傳用戶：
PW4556_2.0.pdf規(guī)格書(shū)下載

The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the internal MOSFET architecture. It can deliver up to 300mA of charge current (using a goodthermal PCB layout) with a final float voltage accuracy of ±1%. The charge voltage is fixed at 4.2V or4.35V, and the charge current can be programmed externally with a single resistor. The chargerfunction has high accuracy current and voltage regulation loops and charge termination

標(biāo)簽： pw4556

上傳時(shí)間： 2022-02-11

上傳用戶：1208020161
PW4055_2.0.pdf規(guī)格書(shū)下載

The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specifications.The PW4055 No external sense resistor is needed, and no blocking diode is required due to theinternal MOSFET architecture.Thermal feedback regulates the charge current to limit the dietemperature during high power operation or high ambient temperature. The charge voltage is fixedat 4.2V, and the charge current can be programmed externally with a single resistor. The PW4055automatically terminates the charge cycle when the charge current drops to 1/10th the programmedvalue after the final float voltage is reached. When the input supply (wall adapter or USB supply) isremoved, the PW4055 automatically enters a low current state, dropping the battery drain currentto less than 2μA. The PW4055 can be put into shutdown mode, reducing the supply current to 25μA.The BAT pin has a 7KV ESD(HBM) capability. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presenceof an input voltage

標(biāo)簽： pw4055

上傳時(shí)間： 2022-02-11

上傳用戶：jason_vip1
PW2330-2.0.pdf規(guī)格書(shū)下載

PW2330 develops a high efficiency synchronous step down DC-DC converter capable of delivering3A output current. PW2330 operates over a wide input voltage range from 4.5V to 30V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss. PW2330 adopts the proprietary instant PWM architecture to achieve fast transient responsesfor high step down applications and high efficiency at light loads. In addition, it operates atpseudo-constant frequency of 500kHz under continuous conduction mode to minimize the size ofinductor and capacitor

標(biāo)簽： pw2330

上傳時(shí)間： 2022-02-11

上傳用戶：
PW2205-2.0.pdf規(guī)格書(shū)下載

PW2205 develops a high efficiency synchronous step-down DC-DC converter capable of delivering5A output current. PW2205 operates over a wide input voltage range from 4.5V to 30V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss.PW2205 adopts the instant PWM architecture to achieve fast transient responses for high step downapplications and high efficiency at light loads. In addition, it operates at pseudo-constant frequencyof 500kHz under continuous conduction mode to minimize the size of inductor and capacitor

標(biāo)簽： pw2205

上傳時(shí)間： 2022-02-11

上傳用戶：
PW2053-2.0.pdf規(guī)格書(shū)

The PW2053 is a high-efficiency monolithic synchronous buck regulator using a constantfrequency, current mode architecture. The device is available in an adjustable version. Supply currentwith no load is 40uA and drops to <1uA in shutdown. The 2.5V to 5.5V input voltage range makesthe PW2053 ideally suited for single Li-Ion battery powered applications. 100% duty cycle provideslow dropout operation, extending battery life in portable systems. PWM/PFM mode operationprovides very low output ripple voltage for noise sensitive applications. Switching frequency isinternally set at 1.2MHz, allowing the use of small surface mount inductors and capacitors. Lowoutput voltages are easily supported with the 0.6V feedback reference voltage

標(biāo)簽： pw2053

上傳時(shí)間： 2022-02-14

上傳用戶：jason_vip1
IEC 61000-4-2-2018

INTERNATIONAL STANDARD NORME INTERNATIONALEPart 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published.

標(biāo)簽： IEC

上傳時(shí)間： 2022-04-19

上傳用戶：fliang
個(gè)人畢業(yè)設(shè)計(jì)-基于51單片機(jī)的恒溫控制系統(tǒng)完整工...

說(shuō)明：個(gè)人畢業(yè)設(shè)計(jì)-基于51單片機(jī)的恒溫控制系統(tǒng)，完整工程源碼(Graduation design -- the constant temperature control system based on 51 single chip microcomputer)

標(biāo)簽： 51單片機(jī) 恒溫控制系統(tǒng)

上傳時(shí)間： 2022-05-27

上傳用戶：
開(kāi)關(guān)升壓型鋰電池充電管理芯片F(xiàn)LD5302/3 技術(shù)手冊(cè)

開(kāi)關(guān)升壓型鋰電池充電管理芯片F(xiàn)LD5302/3概述為開(kāi)關(guān)型兩節(jié)或三節(jié)鋰離子/鋰聚合物電池充電管理芯片，非常適合于便攜式設(shè)備的充電管理應(yīng)用。集電壓和電流調(diào)節(jié)器、預(yù)充、充電狀態(tài)指示和充電截止適配器自適應(yīng)等功能于一體，采用 SOP-8 封裝。對(duì)電池充電分為三個(gè)階段：預(yù) 充（ Pre-charge ）、恒流（CC/constant Current）、恒壓（CV/constant Voltage）過(guò)程。集成過(guò)壓及過(guò)流保護(hù)，確保電芯的安全。

標(biāo)簽： 鋰電池充電管理

上傳時(shí)間： 2022-06-25

上傳用戶：