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參數(shù)資料
| 型號： | MIC2596 |
| 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(fù)電壓熱交換控制器) |
| 中文描述： | 雙通道負(fù)電壓熱插拔控制器（雙通道負(fù)電壓熱交換控制器） |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 66K |
| 代理商： | MIC2596 |
December 2000
7
MIC2596/2597
MIC2596/2597
Micrel
threshold V
THHI
, the circuit beaker is tripped and the output
is immediately turned off. This time-out period t
FLT
prevents
the circuit breaker from erroneously tripping due to inrush
currents during start-up or other transient currents caused by
normal system operation.
The MIC2596 circuit breaker has an automatic-reset func-
tion. After the circuit breaker trips a new start-up cycle is
initiated. If the fault still exists C2 (C3) will again charge up
to V
THHI
and trip the circuit breaker. C2 will then be dis-
charged, and when the voltage across C2 goes below V
THLO
another start cycle is initiated. This will continue until the fault
is removed or the channel is turned off. In the MIC2597 the
circuit breaker is only reset by either toggling the ON pin or
cycling input power. The MIC2597 will be enabled to start up
only if the voltage across C
TIMER
is below V
THLO
.
Foldback Current Limiting
During short circuits or excessive loads the MIC2596 and
MIC2597 employ foldback current limiting. When the differ-
ential from V
EE
to V
OUT
reaches -13V, the output current
starts to fold back. When (V
EE
–
V
OUT
) reaches
–
31V, the
output current will be limited to approximately 20% of its full
scale value. Figure 2 illustrates the foldback function.
100%
20%
13V
31V
I
OUT
(%of I
LIM
)
V
OUT
–
V
EE
Figure 2. Foldback Characteristics
Fault Status Indication
The MIC2596 and MIC2597 will assert the FAULT# output
whenever their circuit breaker function is activated by an
overcurrent condition. A fault will also be indicated if an open-
load or thermal shutdown condition is detected. Figure 3
shows FAULT# timing scenarios.
t > t
FLTOL
t > t
FLT
t < t
FLT
I
LIMIT
I
LOAD
I
OLDTH
FAULT#
ON
(MIC2597A-1)
Figure 3. MIC2597 Fault Timing
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC2597 | Dual Channel Negative Voltage Hot Swap Controllers(雙通道負(fù)電壓熱交換控制器) |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2596-1BTS | 功能描述:IC SWITCH HOT SWAP DUAL 20-TSSOP 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 |
| MIC2596-1BTS TR | 功能描述:IC SWITCH HOT SWAP DUAL 20-TSSOP 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 |
| MIC2596-1BTSE | 功能描述:IC SWITCH HOT SWAP DUAL 20-TSSOP 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 |
| MIC2596-1BTSE TR | 功能描述:IC SWITCH HOT SWAP DUAL 20-TSSOP 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 |
| MIC2596-2BTS | 功能描述:IC SWITCH HOT SWAP DUAL 20-TSSOP 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 |
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