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參數(shù)資料
| 型號： | LTC4210-2IS6 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Microprocessor Crystal; Frequency:32.768MHz; Frequency Tolerance:20ppm; Load Capacitance:18pF; Crystal Terminals:Radial Leaded; ESR:25ohm; Leaded Process Compatible:Yes; Mounting Type:Through Hole; No. of Pins:2 RoHS Compliant: Yes |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 246K |
| 代理商： | LTC4210-2IS6 |
15
LTC4210-1/LTC4210-2
421012f
Normal Mode/External Timer Control
Whenever the TIMER pin voltage drops below the COMP1
threshold, but is not in reset mode, the TIMER enters
normal (100
μ
A source) mode with an equivalent 7k resis-
tive pull-down. Table 1 shows the relationship of t
INITIAL
,
t
CBDELAY
, t
COOLOFF
vs C
TIMER
.
If the TIMER pin is pulled beyond the COMP2 threshold,
the GATE pin is pulled to ground immediately. This allows
the TIMER pin to be used for overvoltage detection, see
Figure 11.
Externally forcing the TIMER pin below the COMP1 thresh-
old will reset the TIMER to normal mode. During overvolt-
age detection, the TIMER’s 100
μ
A pull-down current will
continue to be on if (V
CC
– SENSE) voltage is below 50mV.
If the (V
CC
– SENSE) voltage exceeds 50mV during the
overvoltage detection, the TIMER current will be the same
as described for latched-off or autoretry mode. See the
section OVERVOLTAGE DETECTION USING TIMER PIN
for details of the application.
Power-Off Cycle
The system can be reset by toggling the ON pin low for
more than 30
μ
s as shown at time point 7 of Figure 3. The
GATE pin is pulled to ground. The TIMER capacitor is also
discharged to ground. C
LOAD
discharges through the load.
Alternatively, the TIMER pin can be externally driven above
the COMP2 threshold to turn off the GATE pin.
POWER MOSFET SELECTION
Power MOSFETs can be classified by R
DSON
at V
GS
gate
drive ratings of 10V, 4.5V, 2.5V and 1.8V. Use the typical
curves
VGATE vs Supply Voltage and
VGATE vs Tem-
perature to determine whether the gate drive voltage is
adequate for the selected MOSFET at the operating volt-
age.
In addition, the selected MOSFET should fulfill two V
GS
criteria:
1. Positive V
GS
absolute maximum rating > LTC4210
maximum
V
GATE
, and
2. Negative V
GS
absolute maximum rating > supply
voltage. The gate of the MOSFET can discharge faster
than V
OUT
when shutting down the MOSFET with a large
C
LOAD
.
If one of the conditions cannot be met, an external Zener
clamp shown on Figure 10a or Figure 10b can be used. The
selection of R
G
should be within the allowed LTC4210
package dissipation when discharging V
OUT
via the Zener
clamp.
APPLICATIOU
W
U
U
Table 1. t
INITIAL
, t
CBDELAY
, t
COOLOFF
vs C
TIMER
C
TIMER
(
μ
F)
t
INITIAL
(ms)
0.033
9.0
0.047
12.8
0.068
18.6
t
CBDELAY
(ms)
0.7
1
1.5
t
COOLOFF
(ms)
18.2
25.9
37.4
0.082
0.1
0.22
0.33
0.47
0.68
0.82
1
2.2
3.3
22.4
27.3
60.0
90.1
128.3
185.6
223.8
272.9
600.5
900.7
1.8
2.2
4.8
7.2
10.2
14.7
17.8
21.7
47.7
71.5
45.1
55
121
181.5
258.5
374
451
550
1210
1815
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4210-1IS6 | Hot Swap Controller in 6-Lead SOT-23 Package |
| LTC4210-2CS6 | Hot Swap Controller in 6-Lead SOT-23 Package |
| LTC4210-1 | Hot Swap Controller in 6-Lead SOT-23 Package |
| LTC4210-1CS6 | Hot Swap Controller in 6-Lead SOT-23 Package |
| LTC4210-2 | Hot Swap Controller in 6-Lead SOT-23 Package |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 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(yīng)商設(shè)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 |
| LTC4210-2IS6#TRMPBF | 功能描述:IC CONTROLLER HOT SWAP TSOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 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(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC4210-2IS6#TRPBF | 功能描述:IC CONTROLLER HOT SWAP TSOT23-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 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(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
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