参数资料
| 型号： | LTC4415EMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC DUAL 4A DIODES 16-MSOP |
| 标准包装： | 37 |
| 系列： | PowerPath™ |
| 应用： | 备用电池，高电流开关 |
| FET 型： | P 沟道 |
| 输出数： | 2 |
| 内部开关： | 是 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 电流 - 电源： | 44µA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TFSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 16-MSOP |
| 包装： | 管件 |
LTC4415
TYPICAL APPLICATIONS
non-critical high current loads. If the status resistors are
pulled up through the keep-alive power source itself as
shown in Figure 6, the output voltage is limited to:
V OUT = V KEEP_ALIVE – V gs(M1,2)
where V gs(M1,2) is the voltage drop from gate to source
of the composite NMOS device (M1 and M2). The pull-up
resistor, R1, consumes power from the keep-alive source
when the primary or backup sources supply power to the
load. The primary power source or backup battery supplies
power to the load when either of them are higher than the
output voltage.
Current limit on any of the diode power paths can be set
to automatically fold back as the output voltage drops (to
reduce power consumption), by switching out a resistor on
the CLIM pin, as shown in Figure 6 for diode 1. The gate
of NMOS M3 can optionally be fed from a resistor divided
output voltage to adjust the output voltage threshold of
current foldback.
L1
1.5μH
Multiple Battery Charging
Figure 7 illustrates an application circuit for automatic dual
battery charging from a single charger. The battery with
lower voltage receives larger charging current until both
battery voltages are equal, then both are charged. While
both batteries are charging simultaneously, the higher
capacity battery gets proportionally higher current from
the charger. For Li-Ion batteries, both batteries achieve
the charger float voltage minus the forward regulation
voltage of 15mV. This concept can be extended to more
than two batteries using additional LTC4415. The STAT1 ,
STAT2 pins provide information as to when the batteries
are being charged. For intelligent control, the EN1/ EN2
input pins can be used with a microcontroller as shown
in Figure 9 later in this section.
50k
IN1
OUT1
V IN
4.5V TO 5.5V
R1
10k
R2
1k
D1
LED
C1
10μF
V INSENSE
PV IN
PGND
CHRG
NTC
SW SENSE
LTC4001
BAT
10μF
IDEAL
LTC4415
EN1
CLIM1 STAT1
CLIM2 WARN1
WARN2
EN2 STAT2
+
1.5k
1.5k
BAT1
LOAD1
TO μP
FROM μP
FAULT
EN
PROG IDET
TIMER SS
BATSENS
GNDSENS
IN2
IDEAL
GND
OUT2
+
BAT2
LOAD2
R3
10k
25°C
R4
549
C2
0.22μF
R5
549
C3
0.1μF
4415 F07
Figure 7. Dual Battery Charging from a Single Charger
4415fa
14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4415IDHC#PBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IDHC#TRPBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IMSE#PBF | 功能描述:IC DUAL 4A DIODES 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4415IMSE#TRPBF | 功能描述:IC DUAL 4A DIODES 16-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 标准包装:1,000 系列:- 应用:电池备份，工业/汽车，大电流开关 FET 型:- 输出数:5 内部开关:是 延迟时间 - 开启:100ns 延迟时间 - 关闭:- 电源电压:3 V ~ 5.5 V 电流 - 电源:250µA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC N 包装:带卷 (TR) |
| LTC4416EMS | 制造商:Linear Technology 功能描述:OR Controller P-Channel Dual-OUT 10-Pin MSOP |
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