- 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： | 14/26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
16
14
12
10
8
6
4
forward voltage yields the lowest power loss and highest
efficiency. The rectifier diode must be rated to withstand
reverse voltages greater than the maximum V IN voltage.
The minimum average diode current rating (I DIODE(MAX) )
is calculated with maximum output current (I CHG(MAX) ),
maximum operational V IN , and output at the precondition
threshold (V BAT(PRE) , or 0.7 ? V BAT(FLT) ):
I DIODE(MAX) > I CHG(MAX) ? (V IN(MAX) – V BAT(PRE) ) / V IN(MAX) ) (A)
12
16
20 24
28
32
MAXIMUM OPERATIONAL V IN VOLTAGE (V)
3652 F03
Figure 3. 7.2V at 1.5A Switched Inductor Values
Magnetics vendors typically specify inductors with
maximum RMS and saturation current ratings. Select an
inductor that has a saturation current rating at or above (1+
? I MAX /2) ? I CHG(MAX) , and an RMS rating above I CHG(MAX) .
Inductors must also meet a maximum volt-second product
requirement. If this specification is not in the data sheet of
an inductor, consult the vendor to make sure the maximum
For example, a rectifier diode for a 7.2V, 2A charger with
a 25V maximum input voltage would require:
I DIODE(MAX) > 2 ? (25 – 0.7[7.2]) / 25), or
I DIODE(MAX) > 1.6A
Battery Float Voltage Programming
The output battery float voltage (V BAT(FLT) ) is programmed
by connecting a resistor divider from the BAT pin to V FB .
V BAT(FLT) can be programmed up to 14.4V.
volt-second product is not being exceeded by your design.
The minimum required volt-second product is:
LT3652
BAT
R FB1
+
V BAT(FLT) ? (1 – V BAT(FLT) /V IN(MAX) ) (V ? μS)
V FB
Rectifier Selection
3652 F04
R FB2
The rectifier diode from SW to GND, in a LT3652 battery
charger provides a current path for the inductor current
Figure 4. Feedback Resistors from BAT to V FB
Program Float Voltage
when the main power switch is disabled. The rectifier is
selected based upon forward voltage, reverse voltage, and
maximum current. A Schottky diode is required, as low
3652fd
14
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。