- 您现在的位置：买卖IC网 > PDF目录1833 > LTC4060EDHC#TRPBF (Linear Technology)IC BATT CHARGER NIMH/NICD 16DFN PDF资料下载
参数资料
| 型号： | LTC4060EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER NIMH/NICD 16DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LTC4060
OPERATIO
Battery Chemistry Selection
The desired battery chemistry is selected by programming
the CHEM pin to the proper voltage. When wired to GND,
a set of parameters specific to charging NiMH cells is
selected. When CHEM is connected to V CC , charging is
optimized for NiCd cells. The various charging parameters
are detailed in Table 2.
Cell Selection
The number of series cells is selected using the SEL0 and
SEL1 pins. For one cell, both pins connect to GND. For two
cells, SEL0 connects to V CC and SEL1 to GND. For three
cells, SEL0 connects to GND and SEL1 to V CC . For four
cells, both connect to V CC .
Table 2. LTC4060 Charging Parameters
Insertion and Removal of Batteries
The LTC4060 automatically senses the insertion or re-
moval of a battery by monitoring the V CELL pin voltage.
Either the charge current, or if not charging then an
internal pull-up current (I BRD ), will pull V CELL up when the
battery is removed. When this voltage rises above 2.05V
(V BR ) for a time greater than the battery removal event
delay shown in Table 1, the LTC4060 considers the battery
to be absent. Inserting a battery, causing V CELL to fall
below both V BR and 1.95V (V BOV ) for a period longer than
the battery insertion event delay shown in Table 1, results
in the LTC4060 recognizing a battery present and initiates
a completely new charge cycle beginning with charge
qualification. All battery currents are inhibited while in
shutdown.
STATE
Precharge
Fast Charge
CHEM
Both
NiCd
NiMH
CHARGE TIME LIMIT
t MAX
t MAX
t MAX
T MIN
5 ° C
5 ° C
5 ° C
T MAX
45 ° C
55 ° C
55 ° C
I CHRG
I MAX /5
I MAX
I MAX
TYPICAL TERMINATION CONDITION
V CELL ≥ 0.9V
–16mV Per Cell After Initial t MAX /12 Delay
–8mV Per Cell After Initial t MAX /12 Delay
APPLICATIO S I FOR ATIO
I MAX = ( I PROG ) ? 930 = ?
? ? 930
Programming Charge Current
The battery charge current is set with an external program
resistor connected from the PROG pin to GND. The for-
mula for the battery fast charge current or I MAX is:
? 1 . 5 V ?
? R PROG ?
Under precharge conditions, the current is reduced to
20% of the fast charge value (I MAX ).The LTC4060 is
designed for a maximum current of 2A. This translates to
a maximum PROG pin current of 2.15mA and a minimum
program resistor of 698 ? . Reduced accuracy at low
current limits the useful fast charge current to a minimum
of approximately 200mA. Errors in the charge current can
be statistically approximated as follows:
or
R PROG =
1395
I MAX
One Sigma Error ? 7mA
For best stability over temperature and time, 1% metal-
film resistors are recommended. Capacitance on the PROG
where R PROG is the total resistance from the PROG pin to
ground. For example, if 1A of fast charge current is
required:
pin should be limited to about 75pF to insure adequate AC
phase margin for its amplifier.
Differentchargecurrentscanbeprogrammedbyvarious
R PROG =
1395
1 A
= 1 . 4 k 1% Resistor
means such as by switching in different program resis-
tors. A voltage DAC connected through a resistor to the
PROG pin or a current DAC connected in parallel with a
4060f
12
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4061EDD#TRPBF | IC BATT CHARGER LI-ION 10-DFN |
| LTC4062EDD#TRPBF | IC BATT CHARGER LI-ION 10-DFN |
| LTC4063EDD#TRPBF | IC BATT CHRGR LI-ION LDO 10DFN |
| LTC4064EMSE#TRPBF | IC CHARGER BATT L-ION 4V 10-MSOP |
| LTC4065EDC#TRPBF | IC CHARGER BATT LI-ON 6-DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4060EFE | 制造商:Linear Technology 功能描述:Battery Charger NiCD/NiMH 2000mA -0.3V to 10.3V 16-Pin TSSOP EP |
| LTC4060EFE#PBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC4060EFE#TRPBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4060EFEPBF | 制造商:Linear Technology 功能描述:LTC4060 NiCd/NiMH 2A standalone charger |
| LTC4061 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone Linear Li-lon Battery Charger with Thermistor Input |
发布紧急采购，3分钟左右您将得到回复。