參數(shù)資料
型號(hào)： 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)： 1/24頁
文件大?。?/td> 269K
代理商： LTC4007EUFD-1#TRPBF
1
LTC4007-1
40071f
TYPICAL APPLICATIO
U
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
4A, High Efficiency,
Li-Ion Battery Charger
■
Charger Controller for 3- or 4-Cell
Lithium-Ion Batteries
■ High Conversion Efficiency: Up to 96%
■
Output Currents Exceeding 4A
■
±0.8% Charging Voltage Accuracy
■ Built-In Charge Termination for Li-Ion Batteries
■
AC Adapter Current Limiting Maximizes Charge Rate*
■ Thermistor Input for Temperature Qualified Charging
■ Wide Input Voltage Range: 6V to 28V
■
0.5V Dropout Voltage; Maximum Duty Cycle: 98%
■ Programmable Charge Current:
±4% Accuracy
■ Indicator Outputs for Charging, C/10 Current
Detection, AC Adapter Present, Low Battery, Input
Current Limiting and Faults
■ Charging Current Monitor Output
■
Available in a 24-Pin 4mm
× 5mm QFN Package
■ Notebook Computers
■
Portable Instruments
■ Battery-Backup Systems
■ Li-Ion Chargers
12.6V, 4A Li-Ion Battery Charger
The LTC
4007-1 is a constant-current/constant-voltage
charger controller for 3- or 4-cell lithium-ion batteries.
The PWM controller uses a synchronous, quasi-constant
frequency, constant off-time architecture that will not
generate audible noise even when using ceramic capaci-
tors. Charging current is programmable to
±4% accuracy
using a programming resistor. Charging current can also
be monitored as a voltage across the programming
resistor.
The output float voltage is pin programmed for cell count
(3 cells or 4 cells) and chemistry (4.2V/4.1V). A timer,
programmed by an external resistor, sets the total charge
time.
The LTC4007-1 includes a thermistor input, which sus-
pends charging if an unsafe temperature condition is de-
tected. If the cell voltage is less than 3.25V, a low-battery
indicator asserts and can be used to program a trickle charge
current to safely charge depleted batteries. The FAULT pin
is also asserted and charging terminates if the low-battery
condition persists for more than 1/4 of the total charge time.
3C4C
CHEM
LOBAT
ICL
ACP
SHDN
FAULT
CHG
FLAG
NTC
RT
LOBAT
ICL
ACP
SHDN
FAULT
CHG
FLAG
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
PROG
ITH
GND
LTC4007-1
32.4k
309k
0.47
F
THERMISTOR
10k
NTC
TIMING RESISTOR
(~2 HOURS)
100k
VLOGIC
DCIN
0V TO 28V
0.1
F
INPUT SWITCH
15nF
Q1
Q2
20
F
10
H
4.99k
3.01k
0.025
0.025
20
F
Li-Ion
BATTERY
CHARGING
CURRENT
MONITOR
Q1: Si4431BDY
Q2: FDC645N
SYSTEM
LOAD
0.12
F
6.04k
26.7k
0.0047
F
40071 TA01
PART
AUTO
RESTART
LOW BATTERY
THRESHOLD (Per Cell)
(4.2V/4.1V)
LTC4007-1
NO
3.25V/3.173V
LTC4007
YES
2.5V/2.44V
, LTC and LT are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
*Protected by U.S. Patents including 5723970.
相關(guān)PDF資料
PDF描述
LTC4008EGN#PBF 4A, High Efficiency, Multi-Chemistry Battery Charger; Package: SSOP; No of Pins: 20; Temperature Range: -40°C to +125°C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(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)
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(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)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
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(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)
LTC4008EGN#TRPBF 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:- 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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