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LTC4056ETS8-4.2#TRM PDF预览

LTC4056ETS8-4.2#TRM

更新时间： 2024-11-19 20:51:27
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
16页 200K
描述
LTC4056-4.2 - Linear Li-Ion Charger with Termination in ThinSOT; Package: SOT; Pins: 8; Temperature Range: -40°C to 85°C

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LTC4056ETS8-4.2#TRM 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOT包装说明：VSSOP,
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：2.9 mm
湿度敏感等级：1信道数量：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：
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：235认证状态：Not Qualified
座面最大高度：1 mm最大供电电压 (Vsup)：6.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：20宽度：1.625 mm
Base Number Matches：1

LTC4056ETS8-4.2#TRM 数据手册

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LTC4056-4.2  
Linear Li-Ion Charger  
with Termination in ThinSOT  
U
FEATURES  
DESCRIPTIO  
■
Standalone Li-Ion Charger with Termination  
The LTC®4056 is a low cost, single-cell, constant-current/  
constant-voltage Li-Ion battery charger controller with a  
programmable termination timer. When combined with a  
fewexternalcomponents, theLTC4056formsaverysmall  
standalone charger for single cell lithium-ion batteries.  
■
Programmable Termination Timer  
■
No Sense Resistor or Blocking Diode Required  
■
Suitable for USB-Powered Charging  
Undervoltage Charge Current Limiting  
■
■
Preset Charge Voltage with ±0.6% Accuracy  
Charge current and charge time are set externally with a  
single resistor and capacitor, respectively. The LTC4056  
charges to a final float voltage accurate to ±0.6%. Manual  
shutdown is accomplished by grounding the TIMER/  
SHDN pin, while removing input power automatically puts  
the LTC4056 into a sleep mode. Both the shutdown and  
sleep modes drain near zero current from the battery; the  
shutdown mode reduces supply current to 40µA.  
■
Programmable Charge Current: 200mA to 700mA  
■
Automatic Recharge with Shortened Charge Cycle  
■
Self-Protection for Overcurrent/Overtemperature  
■
40µA Supply Current in Shutdown Mode  
■
Negligible Battery Drain Current in Shutdown  
■
Low Battery Charge Conditioning (Trickle Charging)  
■
CHRG Status Output including AC Present  
PCB Total Solution Area only 75mm2 (700mA)  
■
■
The output driver is both current limited and thermally  
protected to prevent operating outside of safe limits. No  
external blocking diode or sense resistor is required. The  
LTC4056 also includes low battery charge conditioning  
(trickle charging), undervoltage charge current limiting,  
automatic recharge and a charge status output.  
Low Profile (1mm) SOT-23 Package  
U
APPLICATIO S  
■
Cellular Telephones  
■
Handheld Computers  
■
Digital Cameras  
Charging Docks and Cradles  
Low Cost and Small Size Chargers  
The LTC4056 is available in a low profile (1mm) 8-lead  
■
SOT-23 (ThinSOTTM) package.  
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
VIN Undervoltage Charge  
Current Limiting  
800  
V
= 4V  
BAT  
CONSTANT  
CURRENT  
R
= 1.3k  
PROG  
700  
600  
500  
400  
300  
200  
100  
0
I
= 700mA  
CHG  
INPUT Z = 100mΩ  
LTC4056  
V
IN  
700mA  
4.5V TO 6.5V  
V
I
CC  
SENSE  
UNDERVOLTAGE CHARGE  
CURRENT LIMITING  
CHARGE  
STATUS  
CHRG  
DRIVE  
ZXT1M322  
TIMER/SHDN BAT  
1µF  
+
1-CELL  
4.2V Li-Ion  
PROG  
GND  
1µF  
1.3k  
UNDERVOLTAGE  
LOCKOUT  
AT 4.35V  
4056-4.2 TA01  
4.45 4.50 4.55 4.60 4.65  
4.75  
4.70  
4.40  
V
IN  
(V)  
4056 TA02  
405642f  
1
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