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參數(shù)資料
| 型號： | LTC1960 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 4A, High Efficiency, Standalone Li Battery Charger |
| 中文描述： | 第4A，高效，獨(dú)立鋰電池充電器 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 241K |
| 代理商： | LTC1960 |
11
LTC4007
4007i
OPERATIOU
the timing resistor connected to R
T
, keeps switch S1
closed to sample the thermistor:
t
SAMPLE
= 127.5 20 R
RT
17.5pF = 16.2ms,
for R
RT
= 309k
The external RC network is driven to approximately 4.5V
and settles to a final value across the thermistor of:
CLK
(NOT TO
SCALE)
V
NTC
t
SAMPLE
VOLTAGE ACROSS THERMISTOR
t
HOLD
4007 F04
COMPARATOR HIGH LIMIT
COMPARATOR LOW LIMIT
Figure 4
6
NTC
LTC4007
S1
R9
32.4k
C7
0.47
μ
F
R
TH
10k
NTC
–
+
–
+
–
+
60k
~4.5V
CLK
45k
15k
TBAD
4007 F03
D
C
Q
Figure 3
V
V R
+
R
R
RTH FINAL
(
TH
9
TH
)
.
=
4 5
This voltage is stored by C7. Then the switch is opened for
a short period of time to read the voltage across the
thermistor.
t
HOLD
= 10 R
RT
17.5pF = 64
μ
s,
for R
RT
= 309k
When the t
HOLD
interval ends the result of the thermistor
testing is stored in the D flip-flop (DFF). If the voltage at
NTC is within the limits provided by the resistor divider
feeding the comparators, then the NOR gate output will be
low and the DFF will set T
BAD
to zero and charging will
continue. If the voltage at NTC is outside of the resistor
divider limits, then the DFF will set T
BAD
to one, the charger
will be shut down, FAULT pin is set low and the timer will
be suspended until T
BAD
returns to zero (see Figure 4).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LTC1960CG#PBF | 功能描述:IC BATT CHRGR/SELECTR DUAL36SSOP 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 |
| LTC1960CG#TR | 功能描述:IC BATT CHRGR/SELECTR DUAL36SSOP 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) |
| LTC1960CG#TRPBF | 功能描述:IC BATT CHRGR/SELECTR DUAL36SSOP 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) |
| LTC1960CUHF#PBF | 功能描述:IC BATT CHRGR/SELECTR DL 38-QFN 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) |
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