- 您现在的位置：买卖IC网 > PDF目录16296 > LTM8062EV#PBF (Linear Technology)IC BATTERY CHARGER TRACK 77-LGA PDF资料下载
参数资料
| 型号： | LTM8062EV#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/24页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER TRACK 77-LGA |
| 产品培训模块： | LTM806x Step-Down Micro-Module Battery Charger |
| 设计资源： | DC1621A Design Files |
| 特色产品： | μModule Products |
| 标准包装： | 170 |
| 系列： | µModule® |
| 功能： | 充电管理，太阳能 |
| 电池化学： | 铅酸，LiFePO4，锂离子，锂聚合物 |
| 电源电压： | 4.95 V ~ 32 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 77-BLGA |
| 供应商设备封装： | 77-LGA（15x9） |
| 包装： | 托盘 |
| 配用： | DC1621A-ND - BOARD DEMO LTM8062 |
LTM8062/LTM8062A
OPERATION
The LTM8062/LTM8062A are complete monolithic, mid-
power, power tracking battery chargers, addressing
high input voltage applications with solutions that use a
minimum of external components. The products can be
programmed for float voltages between 3.3V and 14.4V
(LTM8062) or between 3.3V and 18.8V (LTM8062A) with
just two external resistors, operating under a 1MHz fixed
frequency, average current mode step-down architecture. A
2A power Schottky diode is integrated within the μModule
charger for reverse input voltage protection. A wide input
range allows the operation to full charge from an input
voltage up to 32V. A precision threshold on the RUN pin
allows the implementation of a UVLO feature by using a
simple resistor network. The charger can also be put into
a low current shutdown mode, in which the input supply
bias is reduced to only 15μA.
The LTM8062/LTM8062A employ an input voltage regula-
tion loop, which reduces charge current if a monitored
input voltage falls below a programmed level at the V INREG
pin. There is a 1% 100k resistor to GND at this pin. When
the LTM8062/LTM8062A are powered by a solar panel,
the input regulation loop is used to maintain the panel at
peak output power. The LTM8062/LTM8062A automatically
enter a battery precondition mode if the sensed battery
voltage is very low. In this mode, the charge current is
reduced to 300mA. Once the battery voltage climbs above
the internally set precondition threshold (2.3V at the ADJ
pin), the μModule charger automatically increases the
maximum charge current to the full programmed value.
The LTM8062/LTM8062A can use a charge current based
C/10 termination scheme, which ends a charge cycle
when the battery charge current falls to one-tenth the
programmed charge current. The LTM8062/LTM8062A
also contain an internal charge cycle control timer, for
timer-based termination. When using the internal timer,
the charge cycle can continue beyond the C/10 level to
top-off the battery. The charge cycle terminates when
the programmed time elapses, about three hours for a
0.68μF timer capacitor. The CHRG status pin continues
to signal charging at a C/10 or greater rate, regardless of
which termination scheme is used. When the timer-based
scheme is used, the LTM8062/LTM8062A also support bad
battery detection, which triggers a system fault if a battery
stays in precondition mode for more than one-eighth of
the total programmed charge cycle time.
Once charging terminates and the LTM8062/LTM8062A are
not actively charging, the charger automatically enters a
low current standby mode in which supply bias currents
are reduced to 85μA. If the battery voltage drops 2.5%
from the full charge float voltage, the LTM8062/LTM8062A
engage an automatic charge cycle restart. The IC also au-
tomatically restarts a new charge cycle after a bad-battery
fault once the failed battery is removed and replaced with
another battery. The LTM8062/LTM8062A contain a bat-
tery temperature monitoring circuit. This feature, using a
thermistor, monitors battery temperature and will not allow
charging to begin, or will suspend charging, and signal
a fault condition if the battery temperature is outside a
safe charging range. The LTM8062/LTM8062A contain
two digital open-collector outputs, CHRG and FAULT ,
which provide charger status and signal fault conditions.
These binary coded pins signal battery charging, standby
or shutdown modes, battery temperature faults and bad
battery faults. For reference, C/10 and TMR based charg-
ing cycles are shown in Figures 1 and 2.
8062fd
For more information www.linear.com/LTM8062
9
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4110EUHF#PBF | IC BATTERY BACKUP MANAGER 38-QFN |
| 3-6754412-6 | CA,XG,MTRJ-SC |
| ECO-S2DB102EA | CAP ALUM 1000UF 200V 20% SNAP |
| 3-6754411-6 | CA,XG,MTRJ-SC |
| RCM10DRYI-S13 | CONN EDGECARD 20POS .156 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM8062IV#PBF | 功能描述:IC BATTERY CHARGER TRACK 77-LGA RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:µModule® 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) |
| LTM8062IVPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:32VIN, 2A μModule Power Tracking Battery Charger |
| LTM-820 | 功能描述:LED 安装硬件 LED Mount Self Ret 3 or 5mm Black RoHS:否 制造商:Bivar 产品:LED Mounting Clips LED 大小:5 mm 材料:Nylon 颜色:Black 主体长度:4.4 mm 面板厚度尺寸: 封装:Bulk |
| LTM8328GKR04 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| LTM-8328GKR-04 | 功能描述:LED 显示器和配件 Green RoHS:否 制造商:Avago Technologies 显示器类型:7 Segment 数位数量:2 字符大小:7.8 mm x 14.22 mm 照明颜色:Red 波长:628 nm 共用管脚:Common Anode 工作电压:2.05 V 工作电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 35 C 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。