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參數(shù)資料
| 型號： | LTC4010EFE |
| 廠商： | Linear Integrated Systems |
| 英文描述： | High Efficiency Standalone Nickel Battery Charger |
| 中文描述： | 高效率的獨(dú)立鎳電池充電器 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 205K |
| 代理商： | LTC4010EFE |
14
LTC4010
4010p
APPLICATIU
the application will depend on the amount of PCB copper
to which the package is soldered. Feedthrough vias di-
rectly below the package that connect to inner copper
layers are helpful in lowering thermal resistance. The fol-
lowing formula may be used to estimate the maximum
average power dissipation P
D
(in watts) of the LTC4010
under normal operating conditions.
W
U
U
Application on the first page of this data sheet, these
figures demonstrate 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.
A full-featured 2A LTC4010 application is shown in Fig-
ure 7. The inherent voltage ratings of the V
CELL
, V
CDIV
,
SENSE and BAT pins allow charging of from one to sixteen
series nickel cells in this application, governed only by the
V
CC
overhead 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 termination features. The V
TEMP
thermister net-
work allows the LTC4010 to accurately terminate fast
charge under a variety of applied charge rates. Use of a
synchronous PWM topology improves efficiency and re-
duces excess heat generation. A green LED indicates valid
DC input voltage and installed battery, while a red LED
indicates charging. Fault conditions are indicated by a
yellow LED. The grounded CHEM pin selects the NiMH
charge termination parameter set.
P
V
mA I
7 3
.
k Q
(
Q
I
n
V
R
V
+
D
CC
DD
TGATE
BGATE
DD
CC
LED
LED
30
=
+
+
(
)
+
615
–3 85
60
2
)
–
where:
I
DD
= Average external INTV
DD
load current, if any
Q
TGATE
= Gate charge of external P-channel MOSFET
in coulombs
Q
BGATE
= Gate charge of external N-channel MOSFET
(if used) in coulombs
V
LED
= Maximum external LED forward voltage
R
LED
= External LED current-limiting resistor used in
the application
n = Number of LEDs driven by the LTC4010
Sample Applications
Figures 6 through 8 detail sample charger applications
of various complexities. Combined with the Typical
Figure 6. Minimum LTC4010 Application
FAULT
CHRG
READY
V
CC
TGATE
V
CDIV
V
CELL
V
TEMP
CHEM
INTV
DD
LTC4010
TIMER
GND
SENSE
BAT
FROM
ADAPTER
5.5V TO 34V
10
μ
H
TO
SYSTEM
LOAD
0.1
NiCd
PACK
4010 F06
3k
R
49.9k
10k
56k
0.1
μ
F
10
μ
F
33nF
10
μ
F
BGATE
PGND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):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(yīng)商設(shè)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(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 |
| 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(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):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(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
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