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參數(shù)資料
| 型號： | LTC4007EUFD-1#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4A, High Efficiency, Standalone Li-Ion Battery Charger; Package: QFN; No of Pins: 24; Temperature Range: -40°C to +125°C |
| 中文描述： | BATTERY CHARGE CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封裝： | 4 X 5 MM, LEAD FREE, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 21/24頁 |
| 文件大小： | 269K |
| 代理商： | LTC4007EUFD-1#TRPBF |
6
LTC4007-1
40071f
UU
U
PI FU CTIO S
ACP(Pin 1): Open-Drain output to indicate if the AC
adapter voltage is adequate for charging. This pin is pulled
low by an internal N-channel MOSFET if DCIN is below
BAT. A pull-up resistor is required. The pin is capable of
sinking at least 100
A.
RT (Pin 2): Timer Resistor. The timer period is set by
placing a resistor, RRT , to GND. This resistor is always
required.
The timer period is tTIMER = (1hour RRT/154K).
If this resistor is not present, the charger will not start.
FAULT (Pin 3): Active low open-drain output that indi-
cates charger operation has stopped due to a low-battery
conditioning error, or that charger operation is suspended
due to the thermistor exceeding allowed values. A pull-up
resistor is required if this function is used. The pin is
capable of sinking at least 100
A.
GND (Pin 4): Ground for Low Power Circuitry.
3C4C (Pin 5): Select 3-cell or 4-cell float voltage by
connecting this pin to GND or open, respectively. Internal
14
A pull-up to 5.3V. This pin can also be driven with
open-collector/drain logic levels. High: 4 cell. Low: 3 cell.
LOBAT (Pin 6): Low-Battery Indicator. Active low digital
output. Internal 10
A pull-up to 3.5V. If the battery
voltage is below 3.25V/cell (or 3.173V/cell for 4.1V chem-
istry batteries) LOBAT will be low. The pin is capable of
sinking at least 100
A. If VLOGIC is greater than 3.3V, add
an external pull-up.
NTC (Pin 7): A thermistor network is connected from NTC
to GND. This pin determines if the battery temperature is
safe for charging. The charger and timer are suspended
and the FAULT pin is driven low if the thermistor indicates
a temperature that is unsafe for charging. The thermistor
function may be disabled with a 300k to 500k resistor from
DCIN to NTC.
ITH (Pin 8): Control Signal of the Inner Loop of the Current
Mode PWM. Higher ITH voltage corresponds to higher
charging current in normal operation. A 6k resistor, in
series with a capacitor of at least 0.1
F to GND provides
loop compensation. Typical full-scale output current is
40
A. Nominal voltage range for this pin is 0V to 3V.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Efficiency at 19VDC VIN
Efficiency at 12.6V with 15VDC VIN
CHARGE CURRENT (A)
1.00
0.50
1.50
2.00
2.50
3.00
EFFICIENCY
(
%
)
40071 G10
16.8V
12.6V
100
95
90
85
80
75
CHARGE CURRENT (A)
1.00
0.50
1.50
2.00
2.50
3.00
EFFICIENCY
(
%
)
40071 G11
100
95
90
85
80
75
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LTC4008 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4A, High Efficiency, Standalone Li Battery Charger |
| LTC4008EGN | 功能描述:IC BATT CHARGER CTRLR 4A 20SSOP 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(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| LTC4008EGN#PBF | 功能描述:IC BATT CHARGER CTRLR 4A 20SSOP 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: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 |
| LTC4008EGN#TR | 功能描述:IC CTRLR CHARGR PWM CC/CV 20SSOP 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(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
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