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參數(shù)資料
| 型號(hào)： | LTC4054LES5-4.2#TRMPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +125°C |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | PLASTIC, MO-193, LEAD FREE, TSOT-23, 5 PIN |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 192K |
| 代理商： | LTC4054LES5-4.2#TRMPBF |
10
LTC4054L-4.2
4054l42f
OPERATIO
U
Manual Shutdown
At any point in the charge cycle, the LTC4054L can be put
into shutdown mode by removing RPROG thus floating the
PROG pin. This reduces the battery drain current to less
than 2
A and the supply current to less than 50A. A new
charge cycle can be initiated by reconnecting the program
resistor.
In manual shutdown, the CHRG pin is in a weak pull-down
state as long as VCC is high enough to exceed the UVLO
conditions. The CHRG pin is in a high impedance state if
the LTC4054L is in undervoltage lockout mode: either VCC
is within 100mV of the BAT pin voltage or insufficient
voltage is applied to the VCC pin.
Automatic Recharge
Once the charge cycle is terminated, the LTC4054L con-
tinuously monitors the voltage on the BAT pin using a
comparator with a 2ms filter time (tRECHARGE). A charge
cycle restarts when the battery voltage falls below 4.05V
(which corresponds to approximately 80% to 90% battery
capacity). This ensures that the battery is kept at or near
a fully charged condition and eliminates the need for
periodic charge cycle initiations. CHRG output enters a
strong pull-down state during recharge cycles.
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| LTC4055EUF#PBF | USB Power Controller and Li-Ion Linear Charger; Package: QFN; No of Pins: 16; Temperature Range: -40°C to +125°C |
| LTF5022T-4R7N2R0-LC | 1 ELEMENT, 4.7 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LTF5022T-3R3N2R5-LC | 1 ELEMENT, 3.3 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LTF5022T-2R2N3R2-LC | 1 ELEMENT, 2.2 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4054X | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4054X-4.2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4054XES5-4.2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4054XES5-4.2#PBF | 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion 500mA 4.2V 5-Pin TSOT-23 |
| LTC4054XES5-4.2#TR | 功能描述:IC CHARGR BATTERY L-ION TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
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