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參數(shù)資料
| 型號： | LTC4210-2CS6#TRM |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 13/20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(chǎn)品目錄頁面： | 1342 (CN2011-ZH PDF) |
| 其它名稱： | LTC4210-2CS6 LTC4210-2CS6#TRMCT LTC4210-2CS6-ND |
13
LTC4210-1/LTC4210-2
421012f
Circuit Breaker Timer Operation
When a current limit fault is encountered at time point A in
Figure 5, the circuit breaker timing is activated with a 60礎
pull-up. The circuit breaker trips at time point B if the fault
is still present and the TIMER pin voltage reaches the
COMP2 threshold and the LTC4210 shuts down. For a
continuous fault, the circuit breaker delay is:
t
V
C
A
CBDELAY
TIMER
=
?/DIV>
1 3
60
. "
(13)
Intermittent overloads may exceed the current limit as in
Figure 6, but if the duration is sufficiently short, the TIMER
pin may not reach the COMP2 threshold and the LTC4210
will not shut down. To handle this situation, the TIMER
discharges with 2礎 whenever (V
CC
SENSE) voltage is
below the 50mV limit and the TIMER voltage is between
the COMP1 and COMP2 thresholds. When the TIMER
voltage falls below the COMP1 threshold, the TIMER pin is
discharged with an equivalent 7k resistor (normal mode,
100礎 source) when (V
CC
SENSE) voltage is below the
50mV limit. If the TIMER pin does not drop below the
COMP1 threshold, any intermittent overload with an ag-
gregate duty cycle of more than 3.8% will eventually trip
the circuit breaker. Figure 7 shows the circuit breaker
response time in seconds normalized to 1礔. The asym-
metric charging and discharging of TIMER is a fair gauge
of MOSFET heating.
t
C
s F
V
F
A D
A
TIMER
( / )
. "
"
?nbsp =
?/DIV>
?/DIV>
(
)
?/DIV>
1 3 1
60
2
(14)
When the circuit breaker trips, the GATE pin is pulled low.
The TIMER enters latchoff mode with a 5礎 pull-up for the
LTC4210-2 (latched-off version), while an autoretry cool-
off cycle begins with a 2礎 pull-down for the LTC4210-1
(autoretry version). An autoretry cool-off delay of the
LTC4210-1 between COMP2 and COMP1 thresholds takes:
t
V
C
A
COOLOFF
TIMER
=
?/DIV>
1 1
2
. "
(15)
APPLICATIO S I FOR ATIO
U
U
U
V
TIMER
NORMAL
MODE
FAULT
MODE
100礎
COMP1
CIRCUIT BREAKER
TRIPS
LATCHED OFF (5礎 PULL-UP)
OR RETRY (2礎 PULL-DOWN)
COMP2
A
B
60礎
4210 F05
Figure 5. A Continuous Fault Timing
OVERLOAD DUTY CYCLE, D (%)
10
30
1
4210 F07
0.01
0.1
20
100
90
80
70
60
50
40
0
(s/礔) =
t
C
TIMER
1.3V " 1礔
60礎 " D 2礎
Figure 7. Circuit Breaker Timer Response
for Intermittent Overload
A1
B1 A2
B2 A3 B3
~50mV/R
SENSE
60礎
CIRCUIT BREAKER
TRIPS
COMP1
4210 F06
COMP2
I
LOAD
V
TIMER
V
GATE
2礎
CB
FAULT
CB
FAULT
CB
FAULT
2礎
LATCHED OFF (5礎 PULL-UP)
OR RETRY (2礎 PULL-DOWN)
60礎
60礎
10礎
10礎
Figure 6. Mulitple Intermittent Overcurrent Conditon
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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(tǒng)，AdvancedTCA ? 系統(tǒng)，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 |
| LTC4210-2IS6#TRM | 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 16.5V 6-Pin TSOT-23 T/R |
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