參數(shù)資料
型號(hào)： LTC4098EPDC-1#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20
封裝： 4 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁(yè)數(shù)： 2/32頁(yè)
文件大?。?/td> 443K
代理商： LTC4098EPDC-1#PBF
LTC4098/LTC4098-1
10
40981fc
VOUT (Pin 12): Output Voltage of the Switching PowerPath
Controller and Input Voltage of the Battery Charger. The
majority of the portable product should be powered from
VOUT. The LTC4098/LTC4098-1 will partition the available
power between the external load on VOUT and the internal
battery charger. Priority is given to the external load and
any extra power is used to charge the battery. An ideal
diode from BAT to VOUT ensures that VOUT is powered even
if the load exceeds the allotted power from VBUS or if the
VBUS power source is removed. VOUT should be bypassed
with a low impedance multilayer ceramic capacitor.
VBUS (Pin 13): Input Voltage for the Switching PowerPath
Controller. VBUS will usually be connected to the USB port
of a computer or a DC output wall adapter. VBUS should
be bypassed with a low impedance multilayer ceramic
capacitor.
SW (Pin 14): The SW pin delivers power from VBUS to
VOUT via the step-down switching regulator. An inductor
should be connected from SW to VOUT. See the Applica-
tions Information section for a discussion of inductance
value and current rating.
D0 (Pin 15): Mode Select Input Pin. D0, in combination with
the D1 pin and the D2 pin, controls the current limit and
battery charger functions of the LTC4098/LTC4098-1 (see
Table 1). This pin is pulled low by a weak current sink.
D1 (Pin 16): Mode Select Input Pin. D1, in combination with
the D0 pin and the D2 pin, controls the current limit and
battery charger functions of the LTC4098/LTC4098-1 (see
Table 1). This pin is pulled low by a weak current sink.
D2 (Pin 17): Mode Select Input Pin. D2, in combination
with the D0 pin and D1 pin, controls the current limit and
battery charger functions of the LTC4098/LTC4098-1 (see
Table 1). This pin is pulled low by a weak current sink.
WALL (Pin 18): External Power Source Sense Input.
WALL should be connected to the output of the external
high voltage switching regulator and to the drain of an
external P-channel MOS transistor. It is used to determine
when power is applied to the external regulator. When
power is detected, ACPR is driven low and the USB input
is automatically disabled.
ACPR (Pin 19): External Power Source Present Output
(Active Low). ACPR indicates that the output of the external
high voltage step-down switching regulator is suitable for
use by the LTC4098/LTC4098-1. It should be connected to
the gate of an external P-channel MOS transistor whose
source is connected to VOUT and whose drain is connected
to WALL. ACPR has a high level of VOUT and a low level
of GND.
VC(Pin20):Bat-TrackExternalSwitchingRegulatorControl
Output. This pin drives the VC pin of a Linear Technology
external step-down switching regulator. In concert with
WALL and ACPR, it will regulate VOUT to maximize battery
charger efficiency.
Exposed Pad (Pin 21): Ground. The Exposed Pad must
be soldered to the PCB.
PIN FUNCTIONS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4098EPDC-1-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EPDC-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EPDC-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EUDC#PBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:Bat-Track™, PowerPath™ 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2
LTC4098EUDC#TRPBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:Bat-Track™, PowerPath™ 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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