參數(shù)資料
型號(hào)： AAT4610A
廠商： Advanced Analogic Technologies, Inc.
英文描述： Current Limited Load Switch
中文描述： 電流限制負(fù)荷開關(guān)
文件頁數(shù)： 8/12頁
文件大?。?/td> 224K
代理商： AAT4610A
Applications Information
Setting Current Limit
In most applications, the variation in I
LIM
must be
taken into account when determining R
SET.
The I
LIM
variation is due to processing variations from part
to part, as well as variations in the voltages at IN
(pin 5) and OUT (pin 3), plus the operating temper-
ature. See charts "Current Limit vs. Temperature",
and "Output Current vs. V
OUT
". Together these
three factors add up to a ±25% tolerance (see I
LIM
specification in Electrical Characteristics section).
In the figure below, a cold device with a statistical-
ly higher current limit, and a hot device with a sta-
tistically lower current limit, both with R
SET
equal to
10.5k
are shown. While the chart, "R
SET
vs. I
LIM
"
indicates an I
LIM
of 0.7A with an R
SET
of 10.5k
,
this figure shows that the actual current limit will be
at least 0.525A, and no greater than 0.880A.
To determine R
SET,
start with the maximum current
drawn by the load, and multiply it by 1.33. (typi-
cal_I
LIM
= minimum_I
LIM
/ 0.75) This is the typical
current limit value. Next, refer to "R
SET
vs. I
LIM
" and
find the R
SET
that corresponds to the typical current
limit value. Choose the largest resistor available
that is less than or equal to it. For greater precision,
the value of R
SET
may also be calculated using the
I
LIM
R
SET
product found in the chart "R
SET
coeffi-
cient vs. I
LIM
". The maximum current is derived by
multiplying the typical current for the chosen R
SET
in the chart by 1.25. A few standard resistor values
are listed in the table "Current Limit R
SET
Values".
Current Limit R
SET
Values
Example: AUSB port requires 0.5A. 0.5Amultiplied
by 1.33 is 0.665A. From the chart named "R
SET
vs.
I
LIM
", R
SET
should be less than 11k
. 10.5 k
is a
standard value that is a little less than 11k
but
very close. The chart reads approximately 0.700A
as a typical I
LIM
value for 10.5k
. Multiplying
0.700A by 0.75 and 1.25 shows that the AAT4610
will limit the load current to greater than 0.525A but
less than 0.875A.
Current Limit Using10.5 k
0
0.2
0.4
0.6
0.8
1
1.2
0
1
2
3
4
5
Vout (V)
I
L
(
0.88 A
0.525 A
Device with high current limit at -40 C
Device with low current limit at 85 C
AAT4610A
Current Limited Load Switch
8
4610A.2003.05.0.92
R
SET
(k
)
Current
Limit typ
(mA)
Device will
not current
limit below:
(mA)
150
188
225
263
300
338
375
413
450
525
600
675
750
825
900
975
1050
Device always
current limits
below:
(mA)
250
313
375
438
500
563
625
688
750
875
1000
1125
1250
1375
1500
1625
1750
40.2
30.9
24.9
22.1
19.6
17.8
16.2
14.7
13.0
10.5
8.87
7.50
6.81
6.04
5.49
4.99
4.64
200
250
300
350
400
450
500
550
600
700
800
900
1000
1100
1200
1300
1400
相關(guān)PDF資料
PDF描述
AAT4610AIGV-1-T1 Current Limited Load Switch
AAT4610AIGV-T1 Current Limited Load Switch
AAT4610AIJS-1-T1 Current Limited Load Switch
AAT4610AIJS-T1 Current Limited Load Switch
AAT4610IGV-T1 Current Limited Load Switch in SOT-23 Package
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT4610A_07 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Current Limited Load Switch
AAT4610AIGV-1-T1 制造商:Skyworks Solutions Inc 功能描述:LDSW1-IN 1-OUT 2.4V-5.5V 1A SOT- 制造商:Skyworks Solutions Inc 功能描述:Power Switch ICs - Power Distribution Current Limited Load Switch
AAT4610AIGV-T1 功能描述:電源開關(guān) IC - 配電 Current Limited Load Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
AAT4610AIJS-1-T1 功能描述:電源開關(guān) IC - 配電 Current Limited Load Switch RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時(shí)間（最大值）:400 us 關(guān)閉時(shí)間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-23-5
AAT4610AIJS-T1 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Current Limited Load Switch
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*