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參數(shù)資料
| 型號： | LTC4006EGN-6 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 4A, High Efficiency, Standalone Li-Ion Battery Charger |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 241K |
| 代理商： | LTC4006EGN-6 |
16
LTC4007
4007i
between the CLP and CLN pins. When this voltage exceeds
100mV, the amplifier will override programmed charging
current to limit adapter current to 100mV/R
CL
. A lowpass
filter formed by 5k
and 15nF is required to eliminate
switching noise. If the current limit is not used, CLP should
be connected to DCIN.
Note that the I
CL
pin will be asserted when the voltage
across R
CL
is 93mV, before the adapter limit regulation
threshold.
Setting Input Current Limit
To set the input current limit, you need to know the
minimum wall adapter current rating. Subtract 5% for the
input current limit tolerance and use that current to deter-
mine the resistor value.
R
CL
= 100mV/I
LIM
I
LIM
= Adapter Min Current –
(Adapter Min Current 5%)
Table 5. Common R
CL
Resistor Values
ADAPTER
RCL VALUE*
RATING (A)
(
) 1%
1.5
1.8
2
0.045
2.3
0.039
2.5
0.036
2.7
0.033
3
* Values shown above are rounded to nearest standard value.
As is often the case, the wall adapter will usually have at
least a +10% current limit margin and many times one can
simply set the adapter current limit value to the actual
adapter rating (see Table 5).
RCL POWER
DISSIPATION (W)
0.135
0.162
0.18
0.206
0.225
0.241
0.27
RCL POWER
RATING (W)
0.25
0.25
0.25
0.25
0.5
0.5
0.5
0.06
0.05
0.03
Designing the Thermistor Network
There are several networks that will yield the desired
function of voltage vs temperature needed for proper
operation of the thermistor. The simplest of these is the
voltage divider shown in Figure 9. Unfortunately, since the
HIGH/LOW comparator thresholds are fixed internally,
there is only one thermistor type that can be used in this
APPLICATIOU
W
U
U
network; the thermistor must have a HIGH/LOW resis-
tance ratio of 1:7. If this happy circumstance is true for
you, then simply set R9 = R
TH(LOW)
If you are using a thermistor that doesn’t have a 1:7 HIGH/
LOW ratio, or you wish to set the HIGH/LOW limits to
different temperatures, then the more generic network in
Figure 10 should work.
Figure 9. Voltage Divider Thermistor Network
Figure 10. General Thermistor Network
LTC4007
NTC
R9
9
C7
R
TH
4007 F09
LTC4007
NTC
R9
9
C7
R9A
R
TH
4007 F10
Once the thermistor, R
TH
, has been selected and the
thermistor value is known at the temperature limits, then
resistors R9 and R9A are given by:
For NTC thermistors:
R9 = 6 R
TH(LOW)
R
TH(HIGH)
/(R
TH(LOW)
– R
TH(HIGH)
)
R9A = 6 R
TH(LOW)
R
TH(HIGH)
/(R
TH(LOW)
– 7 R
TH(HIGH)
)
For PTC thermistors:
R9 = 6 R
TH(LOW)
R
TH(HIGH)
/(R
TH(HIGH)
– R
TH(LOW)
)
R9A = 6 R
TH(LOW)
R
TH(HIGH)
/(R
TH(HIGH)
– 7
R
TH(LOW)
)
Example #1: 10k
NTC with custom limits
TLOW = 0
°
C, THIGH = 50
°
C
R
TH
= 10k at 25
°
C,
R
TH(LOW)
= 32.582k at 0
°
C
R
TH(HIGH)
= 3.635k at 50
°
C
R9 = 24.55k
→
24.3k (nearest 1% value)
R9A = 99.6k
→
100k (nearest 1% value)
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| LTC4006EGN-6#PBF | 功能描述:IC CHARGER BATTERY 4A 16-SSOP 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/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 |
| LTC4006EGN-6#TR | 功能描述:IC BATT CHGR CC/CV LI-ION 16SSOP 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) |
| LTC4006EGN-6#TRPBF | 功能描述:IC CHARGER BATTERY 4A 16-SSOP 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(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) |
| LTC4007 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4A, High Efficiency, Standalone Li Battery Charger |
| LTC4007_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4A, High Efficiency, Standalone Li-Ion Battery Charger |
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