- 您现在的位置：买卖IC网 > PDF目录16297 > LTM8061EV-8.4#PBF (Linear Technology)IC BATTERY CHARGER 8.4V 77-LGA PDF资料下载
参数资料
| 型号： | LTM8061EV-8.4#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 10/22页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER 8.4V 77-LGA |
| 产品培训模块： | LTM806x Step-Down Micro-Module Battery Charger |
| 设计资源： | DC1645A Design Files |
| 特色产品： | μModule Products |
| 标准包装： | 170 |
| 系列： | µModule® |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 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： | DC1645A-D-ND - BOARD EVAL LTM8061-8.4 |
LTM8061
APPLICATIONS INFORMATION
Overview
The LTM8061 is a complete monolithic, mid-power, Li-Ion
battery charger, addressing high input voltage applications
with solutions that use a minimum of external components.
The product is available in four variants: 4.1V, 4.2V, 8.2V
and 8.4V fixed float voltages, each using 1MHz constant-
frequency, average current mode step-down architecture. A
2A power Schottky diode is integrated within the μModule
for reverse input voltage protection. A wide input range
allows the operation to full charge from 6V to 32V for
the LTM8061-4.1/LTM8061-4.2 and 11V to 32V for the
LTM8061-8.2/LTM8061-8.4 versions. A precision thresh-
old RUN pin allows incorporation of UVLO functionality
using a simple resistor divider. The charger can also be
put into a low current shutdown mode, in which the input
supply bias is reduced to only 15μA.
The LTM8061 incorporates several degrees of charge
current control freedom. The maximum charge current
is internally set to approximately 2A. A maximum charge
current programming pin (RNG/SS) allows the charge
current to be reduced from the default 2A level. The
LTM8061 also incorporates an input supply current limit
control feature (V INC /CLP) that servos the battery charge
current to accommodate overall system load requirements.
The LTM8061 automatically enters 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 (2.9V for the LTM8061-4.1/LTM8061-4.2, 5.65V
for the LTM8061-8.2, and 5.8V for the LTM8061-8.4), the
μModule automatically increases the maximum charge
current to the full programmed value.
The LTM8061 can use a charge current based C/10 termina-
tion scheme, which ends a charge cycle when the battery
charge current falls to one-tenth the programmed charge
current. The LTM8061 also contains 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 a battery. The charge cycle terminates
when the programmed time elapses, typically chosen to
be three hours. The CHRG status pin continues to signal
charging at a C/10 rate, regardless of which termination
scheme is used. When the timer-based scheme is used,
the device also supports 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 LTM8061 is not actively
charging, the device 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 LTM8061 engages an automatic
charge cycle restart. The device also automatically restarts
a new charge cycle after a bad-battery fault once the failed
battery is removed and replaced with another battery.
The LTM8061 contains a battery 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 LTM8061
contains two digital open-collector outputs, 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 charging cycles are
shown in Figures 1 and 2.
8061fa
10
For more information www.linear.com/LTM8601
相关PDF资料 |
PDF描述 |
|---|---|
| LTM8061EV-8.2#PBF | IC BATTERY CHARGER 8.2V 77-LGA |
| M3CCA-2660K | IDC CABLE - MKC26A/MC26F/MKC26A |
| M1TXK-3436R | IDC CABLE - MSD34K/MC34M/X |
| VE-J1F-EZ-F4 | CONVERTER MOD DC/DC 72V 25W |
| M3AAK-3006J | IDC CABLE - MSC30K/MC34G/MSC30K |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTM8061IV-4.1#PBF | 功能描述:IC BATTERY CHARGER 4.1V 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) |
| LTM8061IV-4.1PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:32V, 2A μModule Li-Ion/ Polymer Battery Charger |
| LTM8061IV-4.2#PBF | 功能描述:IC BATTERY CHARGER 4.2V 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) |
| LTM8061IV-4.2PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:32V, 2A μModule Li-Ion/ Polymer Battery Charger |
| LTM8061IV-8.2#PBF | 功能描述:IC BATTERY CHARGER 8.2V 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) |
发布紧急采购，3分钟左右您将得到回复。