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參數資料
| 型號： | LTC4010EFE |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A BATTERY CHARGE CONTROLLER, 640 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-16 |
| 文件頁數： | 9/24頁 |
| 文件大小： | 281K |
| 代理商： | LTC4010EFE |
LTC4010
4010fb
Sample Applications
Figures 6 through 8 detail sample charger applications of
variouscomplexities.CombinedwiththeTypicalApplication
on the first page of this data sheet, these figures demon-
strate some of the proper configurations of the LTC4010.
MOSFET body diodes are shown in these figures strictly
for reference only.
Figure 6 shows a minimum application, which might be
encountered in low cost NiCd fast charge applications.
The LTC4010 uses –V to terminate the fast charge state,
as no external temperature information is available.
Nonsynchronous PWM switching is employed to reduce
external component cost. A single LED indicates charging
status.
Afull-featured2ALTC4010applicationisshowninFigure 7.
The inherent voltage ratings of the VCELL, VCDIV, SENSE
and BAT pins allow charging of one to sixteen series nickel
cellsinthisapplication,governedonlybytheVCCoverhead
limits previously discussed. The application includes all
average cell voltage and battery temperature sensing
circuitry required for the LTC4010 to utilize its full range
of charge qualification, safety monitoring and fast charge
terminationfeatures.TheVTEMPthermisternetworkallows
the LTC4010 to accurately terminate fast charge under a
applicaTions inForMaTion
varietyofappliedchargerates.UseofasynchronousPWM
topology improves efficiency and reduces excess heat
generation. LED D1 indicates valid DC input voltage and
installed battery, while LED D2 indicates charging. Fault
conditions are indicated by LED D3. The grounded CHEM
pin selects the NiMH charge termination parameter set.
P-channelMOSFETQ1functionsasaswitchtoconnectthe
battery to the system load whenever the DC input adapter
is removed. If the maximum battery voltage is less than
the maximum rated VGS of Q1, diode D4 and resistor R1
are not required. Otherwise choose the Zener voltage
of D4 to be less than the maximum rated VGS of Q1. R1
provides a bias current of (VBAT – VZENER)/(R1 + 20k) for
D4 when the input adapter is removed. Choose R1 to make
this current, which is drawn from the battery, just large
enough to develop the desired VGS across D4.
While the LTC4010 is a complete, standalone solution,
Figure 8 shows that it can also be interfaced to a host
microprocessor. The host MCU can control the charger
directlywithanopen-drainI/OportconnectedtotheVTEMP
pin, if that port is low leakage and can tolerate at least
2V. The charger state is monitored on the three LTC4010
status outputs. Charging of NiMH batteries is selected in
this example. However, NiCd parameters could be chosen
as well.
Figure 6. Minimum 1 Amp LTC4010 Application
FAULT
CHRG
READY
VCC
TGATE
VCDIV
VCELL
CHEM
VTEMP
LTC4010
TIMER
INTVDD
GND
SENSE
BAT
FROM
ADAPTER
12V
10H
TO
SYSTEM
LOAD
0.1
NiCd
PACK
(1AHr)
4010 F06
3k
49.9k
10k
8.66k
0.1F
10F
R2
33nF
10F
BGATE
PGND
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相關代理商/技術參數 |
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| LTC4011 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011CFE | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學:堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-6 包裝:帶卷 (TR) |
| LTC4011CFE#PBF | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關文件:STC3100 View All Specifications 特色產品:STC3100 - Battery Monitor IC 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學: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） 供應商設備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LTC4011CFE#TR | 功能描述:IC BATT CHARGER HIEFF 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學:堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-6 包裝:帶卷 (TR) |
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