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參數(shù)資料
| 型號(hào)： | LTC1153 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Auto-Reset Electronic Circuit Breaker |
| 中文描述： | 自動(dòng)復(fù)位電子斷路器 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 342K |
| 代理商： | LTC1153 |
10
LTC1153
U
S
A
The Y axis of the graph is normalized to one RC time
constant. The X axis is normalized to the set current. (The
set current is defined as the current required to develop
100mV across the drain sense resistor).
Note that the trip delay time is shorter for increasing levels
of MOSFET current. This ensures that the total energy
dissipated by the MOSFET is always within the bounds
established by the manufacturer for safe operation. (See
MOSFET data sheet for further S.O.A. information).
O
PPLICATI
U
U
Using a Speed-Up Diode
Another way to reduce the trip delay time is to “bypass”
the delay resistor with a small signal diode as shown in
Figure 6. The diode will engage when the drop across the
drain sense resistor exceeds about 0.7V, providing a direct
path to the sense pin and dramatically reducing the trip
delay time. The drain sense resistor value is selected to
limit the maximum DC breaker current to 4A.
Figure 7. Reverse Battery Protection
Current Limited Power Supplies
The LTC1153 requires at least 3.5V at the supply pin to
ensure proper operation. It is therefore necessary that the
supply to the LTC1153 be held higher than 3.5V at all
times, even when the output of the switch is short circuited
to ground. The output voltage of a current limited regulator
may drop very quickly during short-circuit and pull the
supply pin of the LTC1153 below 3.5V before the shut-
down circuitry has had time to respond and remove drive
from the gate of the power MOSFET. A supply filter should
be added as shown in Figure 8 which holds the supply pin
of the LTC1153 high long enough for the over-current
shutdown circuitry to respond and fully discharge the
gate, i.e., break the circuit.
Reverse Battery Protection
The LTC1153 can be protected against reverse battery
conditions by connecting a resistor in series with the
ground lead as shown in Figure 7. The resistor limits the
supply current to less than 50mA with –12V applied. Since
the LTC1153 draws very little current while in normal
operation, the drop across the ground resistor is minimal.
the 5V
μ
P (or control logic) is protected by the 10k
resistors in series with the input and status pins.
Figure 8. Supply Filter for Current Limited Supplies
Figure 6. Using a Speed-Up Diode
IN
C
T
STATUS
GND
V
S
DS
G
SD
LTC1153
0.1
IRLR024
SHORT
CIRCUIT
0.1
μ
F
100k
1
μ
F
LTC1153 F08
*20
+
*47
μ
F
+
10
μ
F
1N4148
*SUPPLY FILTER COMPONENTS
+
100
μ
F
5V/2A
REGULATOR
>7V
IN
C
T
STATUS
GND
V
S
DS
G
SD
LTC1153
C
0.22
μ
F
+
100
μ
F
IRF530
15V
12V
0.036
LTC1153 F06
0.01
μ
F
1OOk
1N4148
LOAD
IN
C
T
STATUS
GND
V
S
DS
G
SD
LTC1153
C
T
0.47
μ
F
MTP12N06
15V
12V
0.05
LTC1153 F07
LOAD
10k
300
5V
μ
P OR
CONTROL
LOGIC
+
10
μ
F
10k
10k
120k
5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1153C | Auto-Reset Electronic Circuit Breaker |
| LTC1153CN8 | Octal Bus Transceivers With 3-State Outputs 20-SOIC 0 to 70 |
| LTC1153CS8 | Auto-Reset Electronic Circuit Breaker |
| LTC1159-3. 3 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| LTC1159-5 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1153C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Auto-Reset Electronic Circuit Breaker |
| LTC1153CN8 | 功能描述:IC ELECTRNC CIRCUIT BREAKER 8DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動(dòng)設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC1153CN8#PBF | 功能描述:IC ELECTRNC CIRCUIT BREAKER 8DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動(dòng)設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC1153CS8 | 功能描述:IC ELECTR CIRCUIT BREAKER 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:手持/移動(dòng)設(shè)備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC1153CS8#PBF | 功能描述:IC ELECTR CIRCUIT BREAKER 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:熱電冷卻器 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.173"，4.40mm 寬）裸露焊盤 供應(yīng)商設(shè)備封裝:28-TSSOP 裸露焊盤 包裝:管件 產(chǎn)品目錄頁面:1410 (CN2011-ZH PDF) |
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