參數(shù)資料
型號： LTC4216IDE
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Ultralow Voltage Hot Swap Controller
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12
封裝： 4 X 3 MM, PLASTIC, DFN-12
文件頁數(shù)： 20/24頁
文件大小： 277K
代理商： LTC4216IDE
LTC4216
4216f
20
An example with LTC4216 mounted on the backplane is
shown in Figure 15. In this case, the NPN transistor, Q1,
and two resistors, R7 and R8, form the PCB connection
sensing circuit with the ON pin. With the PCB out of the
backplane connector, Q1 base is tied to load supply through
R7, turning Q1 on and pulling the LTC4216’s ON pin low.
The base of Q1 is also wired to the backplane connector
pin. When the PCB is inserted into the backplane, Q1 base
is grounded through a short pin connection on the PCB.
This turns off Q1 and the LTC4216’s ON pin is allowed to
pull high to the load supply through R8, turning it on.
In the previous examples, the PCB connection sensing
circuits are not wired with interrupt capability from the
system controller. As shown in Figure 16, adding logic-
level discrete N-channel MOSFETs, M2 and M3, and a
couple of resistors allow interrupt control to the sensing
circuit. M2 is held on by its gate, pulling high through
R8 to the load supply until the PCB is mated firmly to
the backplane connector. A low logic-level for both the
O
N/RST and
O
N/OFF signals turns M2 and M3 off, allowing
the ON pin to be pulled high and turning LTC4216 on. A
high logic-level for the
O
N/OFF signal turns off the device
and pulls the GATE low. The device is reset by pulling the
O
N/RST signal high.
5V Hot Swap Application
Figure 17 shows a hot swap application circuit with V
CC
and SENSEP pins connected together to a 5V load supply
(V
IN
). The resistive divider, R1/R2, sets the undervoltage
threshold for the load supply and allows the system to
start up only after the supply voltage rises above 4V. The
resistive divider, R3/R4, monitors V
OUT
and signals the
APPLICATIU
W
U
U
Figure 14. Single Channel 1.5V Hot Swap Controller
Figure 15. Hot Swap Controller on Backplane with Staggered Pin Connections
SENSEP SENSEN GATE
TIMER
FB
FAULT
RESET
SS
FILTER
LTC4216
C
X
100nF
C4
10nF
R1
20k
1%
R4
13k
1%
R6
10k
R3
10k
1%
R2
3.3k
1%
LONG
BACKPLANE
CONNECTOR
(FEMALE)
PCB EDGE
CONNECTOR
(MALE)
GND
LONG
SHORT
C1
10nF
C2
10nF
C3
68nF
V
OUT
1.5V
5A
V
CC
3.3V
V
IN
1.5V
GND
M1
Si4864DY
R5
10k
+
C
4700
μ
F
FAULT
RESET
μ
P
LOGIC
4216 F14
LONG
11
10
9
8
7
12
1
4
2
5
3
6
V
CC
PCB CONNECTION
SENSING
ON
C
Y
330nF
R
0.004
R
Y
22
R
10
SENSEP SENSEN GATE
TIMER
FAULT
RESET
FB
SS
FILTER
LTC4216
C
Y
330nF
R6
10k
R9
100k
C
1000
μ
F
V
3.3V
5A
R3
10k
1%
LONG
BACKPLANE
CONNECTOR
(FEMALE)
PCB EDGE
CONNECTOR
(MALE)
GND
LONG
SHORT
SHORT
SHORT
SHORT
C1
10nF
C2
4.7nF
C3
33nF
M1
Si4864DY
R7
10k
R5
10k
FAULT
RESET
4216 F15
11
10
9
8
7
12
1
4
5
3
6
Q1
2
V
CC
ON
R8
10k
+
R4
39.2k
1%
C
X
100nF
PCB
CONNECTION
SENSING
V
IN
3.3V
Z1
Z1: SMAJ6.0A
Q1: MMBT3904
R
0.004
R
Y
22
R
X
10
相關PDF資料
PDF描述
LTC4216IMS Ultralow Voltage Hot Swap Controller
LTC4216 Ultralow Voltage Hot Swap Controller
LTC4221CGN Dual Hot Swap Controller/ Power Sequencer with Dual Speed, Dual Level Fault Protection
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LTC4221 Dual Hot Swap Controller/ Power Sequencer with Dual Speed, Dual Level Fault Protection
相關代理商/技術參數(shù)
參數(shù)描述
LTC4216IDE#PBF 功能描述:IC CNTRLR HOT SWAP 12-DFN RoHS:是 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(nèi)部開關: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） 供應商設備封裝:10-MSOP 包裝:管件
LTC4216IDE#TR 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 6V 12-Pin DFN EP T/R
LTC4216IDE#TRPBF 功能描述:IC CNTRLR HOT SWAP 12-DFN RoHS:是 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(nèi)部開關: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） 供應商設備封裝:10-MSOP 包裝:管件
LTC4216IMS 制造商:LINER 制造商全稱:Linear Technology 功能描述:Ultralow Voltage Hot Swap Controller
LTC4216IMS#PBF 功能描述:IC CNTRLR HOT SWAP 10-MSOP RoHS:是 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(nèi)部開關: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） 供應商設備封裝:10-MSOP 包裝:管件
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