- 您现在的位置：买卖IC网 > PDF目录16760 > DC1568A (Linear Technology)BOARD BATTERY CHARGER SOLAR PWR PDF资料下载
参数资料
| 型号： | DC1568A |
| 厂商： | Linear Technology |
| 文件页数： | 12/26页 |
| 文件大小： | 0K |
| 描述： | BOARD BATTERY CHARGER SOLAR PWR |
| 视频文件： | Linear Technology LT3652 |
| 设计资源： | DC1568A Design Files DC1568A Schematic |
| 特色产品： | Energy Harvesting Power Products |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LT3652 |
| 主要属性： | 多种化学，太阳能 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板 |
| 相关产品： | LT3652HVIMSE#TRPBF-ND - IC BATTERY CHARGER 2A 12-MSOP LT3652HVIMSE#PBF-ND - IC BATTERY CHARGER 2A 12-MSOP LT3652HVIDD#TRPBF-ND - IC BATTERY CHARGER 2A 12-DFN LT3652HVIDD#PBF-ND - IC BATTERY CHARGER 2A 12-DFN LT3652HVEMSE#TRPBF-ND - IC BATTERY CHARGER 2A 12-MSOP LT3652HVEDD#TRPBF-ND - IC BATTERY CHARGER 2A 12-DFN LT3652HVEDD#PBF-ND - IC BATTERY CHARGER 2A 12-DFN LT3652HVEMSE#PBF-ND - IC BATTERY CHARGER 2A 12-MSOP LT3652IMSE#TRPBF-ND - IC BATT CHARGER SOLAR 2A 12MSOP LT3652IMSE#PBF-ND - IC BATT CHARGER SOLAR 2A 12MSOP 更多... |
LT3652
APPLICATIONS INFORMATION
ripple current in the charger, so it must have an adequate
ripple current rating. RMS ripple current (I CVIN(RMS) ) is:
I CVIN(RMS) ? I CHG(MAX) ? (V BAT / V IN )?([V IN / V BAT ] – 1) 1/2 ,
where I CHG(MAX) is the maximum average charge current
BOOST Supply
The BOOST bootstrapped supply rail drives the internal
switch and facilitates saturation of the switch transistor.
Operating range of the BOOST pin is 0V to 8.5V, as refer-
(100mV/R SENSE ). The above relation has a maximum at
V IN = 2 ? V BAT , where:
I CVIN(RMS) = I CHG(MAX) /2.
LT3652
SW
BOOST
SENSE
R SENSE
BAT
3652 F01
The simple worst-case of ? ? I CHG(MAX) is commonly
used for design.
Bulk capacitance is a function of desired input ripple volt-
age ( ? V IN ), and follows the relation:
C IN(BULK) = I CHG(MAX) ? (V BAT /V IN ) / ? V IN (μF)
Input ripple voltages above 0.1V are not recommended.
10μF is typically adequate for most charger applica-
tions.
Charge Current Programming
The LT3652 charger is configurable to charge at average
currents as high as 2A. Maximum charge current is set by
choosing an inductor sense resistor (R SENSE ) such that
the desired maximum average current through that sense
resistor creates a 100mV drop, or:
Figure 1. Programming Maximum Charge
Current Using R SENSE
enced to the SW pin. Connect a 1μF or greater capacitor
from the BOOST pin to the SW pin.
The voltage on the decoupling capacitor is refreshed
through a diode, with the anode connected to either the
battery output voltage or an external source, and the
cathode connected to the BOOST pin. Rate the diode
average current greater than 0.1A, and reverse voltage
greater than V IN(MAX) .
To refresh the decoupling capacitor with a rectifying diode
from the battery with battery float voltages higher than
8.4V, a >100mA Zener diode can be put in series with
the rectifying diode to prevent exceeding the BOOST pin
operating voltage range.
R SENSE = 0.1 / I CHG(MAX)
where I CHG(MAX) is the maximum average charge current.
A 2A charger, for example, would use a 0.05Ω sense
resistor.
3652fd
12
相关PDF资料 |
PDF描述 |
|---|---|
| GBB15DHHT | CONN EDGECARD 30POS .050 DIP SLD |
| GBM25DTBH-S189 | CONN EDGECARD 50POS R/A .156 SLD |
| RT-375-1/16-X-SP-SM | HEAT SHRINK TUBING |
| RNF-100-3/8-GN-STK | HEAT SHRINK TUBING |
| GBM25DTBD-S189 | CONN EDGECARD 50POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1568A | 制造商:Linear Technology 功能描述:BATTERY CHARGER DEMO. BOARD ((NW)) |
| DC1571A-A | 功能描述:BOARD SAR ADC LTC2383-16 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1571A-B | 功能描述:BOARD SAR ADC LTC2382-16 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1571A-C | 功能描述:BOARD SAR ADC LTC2381-16 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:QuikEval™ 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| DC1571B | 制造商:Aleph America Corporation 功能描述: |
发布紧急采购，3分钟左右您将得到回复。