- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384735 > MIC2597 (Micrel Semiconductor,Inc.) Dual Channel Negative Voltage Hot Swap Controllers(雙通道負電壓熱交換控制器) PDF資料下載
參數(shù)資料
| 型號： | MIC2597 |
| 廠商： | Micrel Semiconductor,Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual Channel Negative Voltage Hot Swap Controllers(雙通道負電壓熱交換控制器) |
| 中文描述： | 雙通道負電壓熱插拔控制器（雙通道負電壓熱交換控制器） |
| 文件頁數(shù)： | 9/10頁 |
| 文件大小： | 66K |
| 代理商： | MIC2597 |
December 2000
9
MIC2596/2597
MIC2596/2597
Micrel
C
OL
One of the special functions of the MIC2596 family of parts is
the ability to detect not only overload faults, but also under-
current (open-load) faults. The time for which a channel
’
s
output must see a load below a minimum current level (which
is a preset percentage of I
LIMIT
- see the Data Sheet Electrical
Tables) is set by C
OL
. When an undercurrent condition is
detected, C
OL
is charged from 0V relative to V
EE
towards a
threshold voltage of 1.32V above V
EE
by a current of 17
μ
A
(nominal). This gives the formula C
OL
= (17
μ
A
·
T
OL
/1.32V).
For example, if a no-load detection period of 75msec is
desired, C
OL
is found to be 0.97
μ
F. 1
μ
F is the closest
standard value. Once the output current goes above the
minimum load current, C
OL
is discharged to V
EE
. The
maximum voltage to which C
OL
will charge is less than 2V, so
a 4.7V voltage rating on the capacitor provides ample safety
margin.
It is important to note that neither the MIC2596 nor the
MIC2597 will attempt an
“
auto-retry
”
upon detecting an open-
load condition. If either of these parts shuts one or both of its
output off following such a condition, the affected output(s)
can only be turned on again by turning the channel(s) off and
then back on, or by cycling the power to the IC. If the open
load detection capability is not needed for a given channel, it
can be defeated by tying the C
OL
pin for that channel to V
EE
.
C
GATE
This pin is a direct connection to the gate of each channel
’
s
internal power MOSFET. Typically, it is used to connect a
capacitor in the range of 1000pF to 4700pF between the
MOSFET gate and V
EE
, to augment the noise immunity of the
channel. This especially helps with regard to dv/dt appearing
on the channel
’
s output, which could otherwise couple through
the drain-gate capacitance to the MOSFET
’
s input.
As the internal MOSFET is an N-channel device in the
negative leg of the channel
’
s power path, the negative
terminal of C
GATE
should connect to V
EE
, and its positive
terminal to the IC
’
s C
GATE
pin. A voltage rating of 15V is well
suited to the approximately 10V which will appear on C
GATE
when the internal MOSFET is fully enhanced.
OUT1
V
IN
–
48V
ILIMIT
CGATE1
OUT2
CGATE2
ILIMIT2
COL2
VEE
COL1
C4
R2
R1
C
L
C
L
C1
C3
C2
CTIMER2
CTIMER1
VDDL
ON2
ON1
FAULT#2
FAULT#1
VCLAMP
V
OUT1
V
OUT2
VDDA
MIC2596-2
19
2
17
12
14
9
16
7
4
8
3
15
10
1
11
20
5
6
N/C
N/C
Stand Alone Hot Swap Application
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2660 | IttyBitty Charge Pump |
| MIC2660BM5 | IttyBitty Charge Pump |
| MIC2774N-XXBM5 | Dual Micro-Power Low Voltage Supervisor Advance Information |
| MIC2774H-XXBM5 | Dual Micro-Power Low Voltage Supervisor Advance Information |
| MIC2774L-XXBM5 | Dual Micro-Power Low Voltage Supervisor Advance Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2597-1BTS | 功能描述:IC SW TELECOM HOT SWAP DUAL RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2597-1BTS TR | 功能描述:IC SW TELECOM HOT SWAP DUAL RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2597-1BTSE | 功能描述:IC SW TELECOM HOT SWAP DUAL RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2597-1BTSE TR | 功能描述:IC SW TELECOM HOT SWAP DUAL RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| MIC2597-2BTS | 功能描述:IC SW TELECOM HOT SWAP DUAL RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。