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LT1512CS8 PDF预览

LT1512CS8

更新时间: 2024-02-03 08:56:19
品牌 Logo 应用领域
凌特 - Linear 电池
页数 文件大小 规格书
12页 264K
描述
SEPIC Constant-Current/ Constant-Voltage Battery Charger

LT1512CS8 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active包装说明:SOP,
针数:8Reach Compliance Code:compliant
风险等级:5.12模拟集成电路 - 其他类型:BATTERY CHARGE CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:25 V最小输入电压:2.7 V
标称输入电压:5 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9025 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:最大输出电流:2.7 A
标称输出电压:1.245 V封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):250
认证状态:Not Qualified座面最大高度:1.752 mm
最大供电电流 (Isup):5.5 mA表面贴装:YES
切换器配置:SINGLE最大切换频率:580 kHz
技术:BIPOLAR温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

LT1512CS8 数据手册

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LT1512  
U
TYPICAL APPLICATION  
The circuit in Figure 6 will provide adapter current limiting  
to ensure that the battery charger never overloads the  
adapter. In addition, it adjusts charging current to a lower  
value if other system power increases to the point where  
the adapter would be overloaded. This allows the LT1512  
tochargethebatteryatthemaximumpossibleratewithout  
concernaboutvaryingsystempowerlevels.TheLM301op  
amp used here is unusual in that it can operate with its  
inputs at a voltage equal to the positive supply voltage.  
SYSTEM  
POWER  
R6  
0.2Ω  
L1 A*  
WALL  
ADAPTER  
INPUT  
C3  
22µF  
25V  
+
R5  
1k  
C2**  
D1  
5
2.2µF  
MBRS130LT3  
2
3
8
2
V
IN  
V
I
SW  
FB  
0.5A  
+
1
7
LM301  
L1 B*  
R1  
LT1512  
SYNC  
30pF  
4
AND/OR  
S/S  
4
8
SHUTDOWN  
GND  
7
V
C
GND S  
6
+
FB  
C1  
22µF  
25V  
6
R4  
24Ω  
R2  
D2  
1N4148  
Q1  
2N3904  
1
3
TO FB PIN  
C4  
R3  
0.2Ω  
0.22µF  
C5  
0.1µF  
R7  
12k  
*L1 A, L1 B ARE TWO 33µH WINDINGS ON A  
COMMON CORE: COILTRONICS CTX33-3  
1512 F06  
**TOKIN CERAMIC 1E225ZY5U-C203-F  
Figure 6. Adding Adapter Current Limiting  
RELATED PARTS  
PART NUMBER DESCRIPTION  
COMMENTS  
LT1239  
Backup Battery Management System  
Charges Backup Battery and Regulates Backup Battery Output when  
Main Battery Removed  
LTC®1325  
Microprocessor Controlled Battery Management System  
Can Charge, Discharge and Gas Gauge NiCd, NiMH and Pb-Acid Batteries  
with Software Charging Profiles  
LT1510  
LT1511  
1.5A Constant-Current/Constant-Voltage Battery Charger Step-Down Charger for Li-Ion, NiCd and NiMH  
3.0A Constant-Current/Constant-Voltage Battery Charger Step-Down Charger that Allows Charging During Computer Operation and  
with Input Current Limiting  
Prevents Wall-Adapter Overload  
LT1513  
SEPIC Constant-Current/Constant-Voltage Battery Charger Step-Up/Step-Down Charger for Up to 2A Current  
LT/GP 1096 7K • PRINTED IN THE USA  
Linear Technology Corporation  
1630 McCarthy Blvd., Milpitas, CA 95035-7417  
12  
(408) 432-1900 FAX: (408) 434-0507 TELEX: 499-3977  
LINEAR TECHNOLOGY CORPORATION 1996  

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