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参数资料
| 型号： | LTC4060EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 17/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER NIMH/NICD 16DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 供应商设备封装： | 16-DFN（5x3） |
| 包装： | 带卷 (TR) |
LTC4060
TYPICAL APPLICATIO S
Trickle Charge
The trickle charge function is normally not required due to
the automatic recharge feature. However, the LTC4060
does provide a modest pull-up current (I BRD ) as part of its
battery removal detection method. If additional current is
required for trickle charge or to support battery removal
detection with current loads greater than I BRD , then the
resistance and mismatches in the two sense resistor’s
value will cause charge current variability to increase in
proportion to the extension in current. Resistor R ISET
should be connected directly to the LTC4060 to reduce
errors. The total current sense resistor, bond wire and lead
frame resistance is approximately 0.08 ? (T.C. ? 3500ppm/
° C). The formula for extended fast charge current is:
I MAX ( EXT ) = I MAX ? ? 1 +
R ISET ?
simple circuit of Figure 4 will facilitate that. The diode
insures no reverse discharge current when V IN is removed
and the resistor sets the trickle current.
?
?
0 . 08 ?
?
Extending Charge Current
Extending the charge current beyond 2A can be accom-
plished by paralleling an external current sense resistor,
R ISET, with the internal current sense resistor as shown in
Figure 5. Bond wire, lead frame and PCB interconnect
V IN
14
V CC
= 2 A ? 1 . 5 = 3 A
for R ISET = 0.16 ? and R PROG = 698 ? .
Adequate PNP beta is required to meet the DRIVE pin
capability and the increased PNP power dissipation will
require additional heat sinking.
1N4001
LTC4060
SENSE
DRIVE
BAT
3
1
2
3.3k
+ 2-CELL
NiMH
BATTERY
4060 F04
Figure 4. Adding Trickle Charge
V IN
14
V CC
0.08 ?
SENSE
DRIVE
1
R ISET
0.16 ?
3
BAT
LTC4060
2
+ 2-CELL
NiMH
BATTERY
4060 F05
Figure 5. Extended Charge Current Operation
4060f
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4060EFE | 制造商:Linear Technology 功能描述:Battery Charger NiCD/NiMH 2000mA -0.3V to 10.3V 16-Pin TSSOP EP |
| LTC4060EFE#PBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC4060EFE#TRPBF | 功能描述:IC BATT CHARGR NIMH/NICD 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4060EFEPBF | 制造商:Linear Technology 功能描述:LTC4060 NiCd/NiMH 2A standalone charger |
| LTC4061 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone Linear Li-lon Battery Charger with Thermistor Input |
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