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参数资料
| 型号： | LTC4056ETS8-4.2#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGR BATTERY L-ION TSOT23-8 |
| 标准包装： | 500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.5 V ~ 6.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 薄型，TSOT-23-8 |
| 供应商设备封装： | TSOT-23-8 |
| 包装： | 带卷 (TR) |
| 其它名称： | LTC4056ETS8-4.2 LTC4056ETS8-4.2-ND |
LTC4056-4.2
Linear Li-Ion Charger
with Termination in ThinSOT
FEATURES
DESCRIPTIO
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Standalone Li-Ion Charger with Termination
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
Programmable Charge Current: 200mA to 700mA
Automatic Recharge with Shortened Charge Cycle
Self-Protection for Overcurrent/Overtemperature
40 μ A 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 75mm 2 (700mA)
Low Profile (1mm) SOT-23 Package
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
few external components, the LTC4056 forms a very small
standalone charger for single cell lithium-ion batteries.
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 40 μ A.
The output driver is both current limited and thermally
protected to prevent operating outside of safe limits. No
Cellular Telephones
Handheld Computers
Digital Cameras
Charging Docks and Cradles
Low Cost and Small Size Chargers
APPLICATIO S
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TYPICAL APPLICATIO
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.
The LTC4056 is available in a low profile (1mm) 8-lead
SOT-23 (ThinSOT TM ) package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
V IN Undervoltage Charge
Current Limiting
700 R PROG = 1.3k
I CHG = 700mA
INPUT Z = 100m ?
500
V IN
4.5V TO 6.5V
CHARGE
V CC I SENSE
LTC4056
CHRG DRIVE
700mA
ZXT1M322
800
600
V BAT = 4V
CONSTANT
CURRENT
UNDERVOLTAGE CHARGE
CURRENT LIMITING
STATUS
1 μ F
1 μ F
1.3k
TIMER/SHDN
PROG
GND
BAT
+
1-CELL
4.2V Li-Ion
400
300
200
UNDERVOLTAGE
100
LOCKOUT
AT 4.35V
4056-4.2 TA01
0
4.40 4.45
4.50 4.55 4.60 4.65 4.70 4.75
V IN (V)
4056 TA02
405642f
1
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| LTC4057 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4057-4.2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
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| LTC4057ES5-4.2#TR | 功能描述:IC CHARGR BATTERY L-ION TSOT23-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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