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參數資料
| 型號： | LTC4210-2CS6#TRM |
| 廠商： | Linear Technology |
| 文件頁數： | 12/20頁 |
| 文件大?。?/td> | 251K |
| 描述： | IC CONTROLLER HOT SWAP TSOT23-6 |
| 標準包裝： | 1 |
| 類型： | 熱交換控制器 |
| 應用： | 通用 |
| 內部開關： | 無 |
| 電源電壓： | 2.7 V ~ 16.5 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 細型，TSOT-23-6 |
| 供應商設備封裝： | SOT-23-6 |
| 包裝： | 剪切帶 (CT) |
| 產品目錄頁面： | 1342 (CN2011-ZH PDF) |
| 其它名稱： | LTC4210-2CS6 LTC4210-2CS6#TRMCT LTC4210-2CS6-ND |
12
LTC4210-1/LTC4210-2
421012f
The current through R
SENSE
can be divided into two
components; I
CLOAD
due to the total load capacitance
(C
LOAD
) and I
LOAD
due to the noncapacitive load elements.
The capacitive load typically dominates.
For a successful start-up without current limit, I
RSENSE
<
I
LIMIT
:
I
RSENSE
= I
CLOAD
+ I
LOAD
< I
LIMIT
I
C
V
T
I
I
RSENSE
LOAD
OUT
LOAD LIMIT
=
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
?/DIV>
+
<
"
(7)
Due to the voltage follower configuration, the V
OUT
ramp
rate approximately tracks V
GATE
:
=
H
=
V
T
I
C
V
T
I
C
OUT CLOAD
LOAD
GATE
GATE
GATE
(8)
At time point 6, V
OUT
is approximately V
IN
but GATE ramp-
up continues until it reaches a maximum voltage. This
maximum voltage is determined either by the charge
pump or the internal clamp.
Start-Up Cycle With Current Limit
If the duration of the current limit is brief during start-up
(Figure 4) and it did not last beyond the circuit breaker
function time out, the GATE behaves the same as in start-
up without current limit except for the time interval be-
tween time point 5A and time point 5B. The servo amplifier
limits I
RSENSE
by decreasing the I
GATE
current (<10礎).
I
I
mV
R
RSENSE LIMIT
SENSE
=
=
50
(9)
Equations 8 and 9 are applicable but with a lower GATE and
V
OUT
ramp rate.
Gate Start-Up Time
The start-up time without current limit is given by:
t
C
V
V
I
t
C
V
I
C
V
I
STARTUP
GATE
TH IN
GATE
STARTUP
GATE
TH
GATE
GATE
IN
GATE
=
+
=
+
"
"
"
(10)
During current limiting, the second term in Equation 10 is
partly modified from C
GATE
" V
IN
/I
GATE
to C
LOAD
"
V
IN
/I
CLOAD
. The start-up time is now given by:
C
V
I
C
V
I
C
V
I
C
V
I
I
STARTUP
GATE
TH
GATE
LOAD
IN
CLOAD
GATE
TH
LOAD
IN
=
+
=
+
"
"
"
"
For successful completion of current limit start-up cycle
there must be a net current to charge C
LOAD
and the
current limit duration must be less than t
CBDELAY
. The
second term in equation 11 has to fulfill equation 12.
C
V
I
I
t
LOAD
IN
RSENSE LOAD
CBDELAY
"
<
(12)
APPLICATIO S I FOR ATIO
U
U
U
V
TIMER
V
GATE
V
OUT
I
RSENSE
V
ON
V
IN
>2.5V
1 2
3 4 5
5A 5B 6
7
RESET
MODE
INITIAL
CYCLE
START-UP
CYCLE
NORMAL
CYCLE
5礎
100礎
COMP1
10礎
10礎
60礎
100礎
DISCHARGE
BY LOAD
REGULATED AT 50mV/R
SENSE
V
TH
COMP2
2礎
<10礎
4210 F04
>1.3V
Figure 4. Operating Sequence with
Current Limiting at Start-Up Cycle
(11)
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相關代理商/技術參數 |
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| LTC4210-2IS6 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Hot Swap Controller in 6-Lead SOT-23 Package |
| LTC4210-2IS6#PBF | 制造商:Linear Technology 功能描述:HOT SWAP CNTRL INT SWITCH 6T 制造商:Linear Technology 功能描述:HOT SWAP CNTRL, INT SWITCH, 6TSOT23 制造商:Linear Technology 功能描述:HOT SWAP CONTROLLER, 2.7-16.5V, TSOT-23-6; Controller Applications:Electronic Circuit Breaker, Hot Board Insertion, Industrial High Side Switch / Circuit Breaker; Internal Switch:Yes; Supply Voltage Min:2.7V; Supply Voltage Max:16.5V;RoHS Compliant: Yes |
| LTC4210-2IS6#TR | 功能描述:IC CONTROLLER HOT SWAP TSOT23-6 RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統，AdvancedTCA ? 系統，高可用性 內部開關:無 電流限制:可調 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
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