参数资料
| 型号： | LTC4415EMSE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/20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
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T A = 25°C (Notes 2, 3). V IN1 = V IN2 = 3.6V, R CLIM = 250Ω, unless otherwise
specified.
SYMBOL
t STAT(OFF)
t WARN(ON)
t WARN(OFF)
PARAMETER
STAT Turn-Off Time
WARN Turn-On Time
WARN Turn-Off Time
CONDITIONS
Disable to STAT Pull-Up
Current Limit to WARN Pull-Down
Out of Current Limit to WARN Pull-Up
MIN
TYP
2
500
5
MAX
UNITS
μs
μs
μs
Enable Input s (EN1, EN2 )
V ENTH
EN1 Rising and EN2 Falling Thresholds
l
760
800
840
mV
V ENHYST
EN1 and EN2 Hysteresis
55
mV
Enable Pin Current When Pulled High
V EN1 = V EN2 = 3.6V
l
0
1
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Unless otherwise specified, current into a pin is positive and
current out of a pin is negative.
Note 3: The LTC4415 is tested under pulsed load conditions such that
T J ≈ T A . The LTC4415E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 125°C operating
junction temperature range are assured by design, characterization and
correlation with statistical process controls. The LTC4415I is guaranteed
over the full –40°C to 125°C operating junction temperature range.
The junction temperature (T J in °C) is calculated from the ambient
temperature (T A in °C) and power dissipation (P D in Watts) according to
the formula:
T J = T A + (P D ? θ JA )
Note that the maximum ambient temperature consistent with these
specifications is determined by specific operating conditions in
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
Note 4: The LTC4415 includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 5: One channel enabled. Quiescent current is identical for each
channel.
Note 6: Enable inputs are driven to supply levels. Other diode is already
enabled so the chip bias circuits are active.
Note 7: Turn-on time is measured from enable to I OUTx rising through
1mA. When the output voltage is more than 1.2V, soft-start is disabled and
turn-on is faster.
Note 8: Current ramps from zero to the current limit during the soft-start
duration. Soft-start is measured from 10% to 90% of the current limit. If
the load condition is such that the current does not need to go up to the
current limit during start-up, the output voltage may reach steady state
sooner.
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, V IN1 = V IN2 = 3.6V, R CLIM = 250Ω unless otherwise noted.
I-V Characteristics
On-Resistance vs Temperature
On-Resistance vs V IN
4
R CLIM = 124
80
70
80
70
3
60
60
2
50
40
50
40
1
0
0
50
100
150
125°C
90°C
25°C
–40°C
200 250
30
20
–50 –25
0
25
50
75
100 125 150
30
20
1
2
3 4
5
6
FORWARD VOLTAGE DROP (mV)
4415 G01
TEMPERATURE (°C)
4415 G02
INPUT VOLTAGE (V)
4415 G03
4415fa
4
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