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參數(shù)資料
| 型號： | LTC4060EFE |
| 廠商： | Linear Integrated Systems |
| 英文描述： | Standalone Linear NiMH/NiCd Fast Battery Charger |
| 中文描述： | 獨立線性鎳氫/鎳鎘電池快速充電器 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 195K |
| 代理商： | LTC4060EFE |
17
LTC4060
4060f
Trickle Charge
The trickle charge function is normally not required due to
the automatic recharge feature. However, the LTC4060
does provide a modest pull-up current (I
BRD
) as part of its
battery removal detection method. If additional current is
required for trickle charge or to support battery removal
detection with current loads greater than I
BRD
, then the
simple circuit of Figure 4 will facilitate that. The diode
insures no reverse discharge current when V
IN
is removed
and the resistor sets the trickle current.
Extending Charge Current
Extending the charge current beyond 2A can be accom-
plished by paralleling an external current sense resistor,
R
ISET,
with the internal current sense resistor as shown in
Figure 5. Bond wire, lead frame and PCB interconnect
resistance and mismatches in the two sense resistor’s
value will cause charge current variability to increase in
proportion to the extension in current. Resistor R
ISET
should be connected directly to the LTC4060 to reduce
errors. The total current sense resistor, bond wire and lead
frame resistance is approximately 0.08
(T.C.
3500ppm/
°
C). The formula for extended fast charge current
is:
I
I
R
A
3
A
MAX EXT
MAX
ISET
(
)
.
1 5
=
+
=
=
1
0 08
2
for R
ISET
= 0.16
and R
PROG
= 698
.
Adequate PNP beta is required to meet the DRIVE pin
capability and the increased PNP power dissipation will
require additional heat sinking.
TYPICAL APPLICATIO S
V
CC
V
IN
1N4001
LTC4060
SENSE
DRIVE
BAT
4060 F04
2-CELL
NiMH
BATTERY
3.3k
3
14
1
2
+
V
CC
V
IN
LTC4060
SENSE
DRIVE
BAT
4060 F05
2-CELL
NiMH
BATTERY
R
0.16
0.08
3
14
1
2
+
Figure 4. Adding Trickle Charge
Figure 5. Extended Charge Current Operation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4060EFE#PBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP 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 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/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 |
| LTC4060EFE#TRPBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 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 標準包裝: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) |
| LTC4060EFEPBF | 制造商:Linear Technology 功能描述:LTC4060 NiCd/NiMH 2A standalone charger |
| LTC4061 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone Linear Li-lon Battery Charger with Thermistor Input |
| LTC4061_05 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone Linear Li-lon Battery Charger with Thermistor Input |
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