參數(shù)資料
型號: MIC2310-2ZTS TR
廠商: Micrel Inc
文件頁數(shù): 25/34頁
文件大?。?/td> 473K
描述: IC HOT SWAP CTLR 2CHAN 24TSSOP
標準包裝: 2,500
類型: 熱交換控制器
應用: 通用
內部開關:
電流限制: 可調
電源電壓: 10.8 V ~ 13.2 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 24-TSSOP
包裝: 帶卷 (TR)
Micrel, Inc.
MIC2310
 
 
July 2008 
25
M9999-070108-A
 
Shorted C
PRIMARY
 Detector Asserts HW_FLT at
Start-up
In order to protect the system from the result of the
installation of a shorted or excessively large C
PRIMARY
 
capacitor on the PCB, the controller incorporates a
shorted   C
PRIMARY
   detection   scheme.   A   shorted
CPRIMARY pin or an excessively large C
PRIMARY
 
capacitor will impact the primary OC detection time,
t
POC.
 The operation of the shorted C
PRIMARY
 detection
scheme at start-up is described in Figure 12. Prior to
power-up, the CPRIMARY pin is discharged to 0V. As
the applied V
CC
 supply and the internal V
REG
 voltage
rise,   a   3mA   current   source   is   applied   to   the
CPRIMARY pin to charge C
PRIMARY
 to V
REG
. When the
internal   V
REG
   voltage   is   above   the   controllers
V
VREG(UVLOH)
   threshold   voltage,   the   t
POR
   timer   is
initiated. For the case of a reasonable C
PRIMARY
 
capacitor value, one which keeps the primary OC
response time, t
POC
, less than 0.5s, C
PRIMARY
 charges
above V
PRIH
  before the POR timer terminates and
normal   operation   commences.   However,   if   the
CPRIMARY pin is shorted to GND or C
PRIMARY
 is too
large, as in this timing diagram, the POR timer
terminates before C
PRIMARY
 charges above V
PRIH
 and a
shorted C
PRIMARY
 is detected. When a C
PRIMARY
 short is
detected, the GATE drive circuit and the DISCH
output are not affected, however, the HW_FLT digital
output is asserted. To repair the damaged C
PRIMARY
 
capacitor and reset the HW_FLT digital output, the
service processor instructs the main supply to turn off
the V
CC
 supply voltage to the controller such that V
REG
 
falls below the controllers V
VREG(UVLOL)
  threshold
voltage.
 
 
V
CC
 & V
REG
ENABLE
GATE
V
OUT
I
LOAD
PWRGD
CPRIMARY
HW_FLT
DISCH
V
VREG(UVLOL)
V
VREG(UVLOH)
V
VREG(UVLOH)
V
GSPGH
V
PGH
V
GSPGH
tPOR
VPRIH
CPRIMARY TOO LARGE
VPRIH
t
POR
SMALLER CPRIMARY
V
PGL
 
 
Figure 12. Shorted C
PRIMARY
 Detector Asserts HW_FLT at Start-up
 
相關PDF資料
PDF描述
MIC2341-2YTQ IC HOT PLUG CTLR DUAL PCI 48TQFP
MIC2569YQS TR IC POWER SWITCH CABLECARD 16QSOP
MIC2583R-MBQS TR IC CTRLR HOT SWAP 200MV 16-QSOP
MIC2585-2MBTS TR IC CTRLR HOT SWAP DUAL 24-TSSOP
MIC2586R-2BM TR IC CTRLR/SEQ HOT SWAP 14-SOIC
相關代理商/技術參數(shù)
參數(shù)描述
MIC23150-4YMT EV 功能描述:電源管理IC開發(fā)工具 2.0A 4MHz HyperLight Load Buck Regulator - Evaluation Board RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MIC23150-4YMT TR 功能描述:直流/直流開關調節(jié)器 2.0A 4MHz HyperLight Load Buck Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MIC23150-4YMT-TR 功能描述:Buck Switching Regulator IC Positive Fixed 1.2V 1 Output 2A 8-VFDFN Exposed Pad, 8-MLF? 制造商:microchip technology 系列:HyperLight Load? 包裝:剪切帶(CT) 零件狀態(tài):有效 功能:降壓 輸出配置:正 拓撲:降壓 輸出類型:固定 輸出數(shù):1 電壓 - 輸入(最小值):2.7V 電壓 - 輸入(最大值):5.5V 電壓 - 輸出(最小值/固定):1.2V 電壓 - 輸出(最大值):- 電流 - 輸出:2A 頻率 - 開關:4MHz 同步整流器:是 工作溫度:-40°C ~ 125°C (TJ) 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤,8-MLF? 供應商器件封裝:8-MLF?(2x2) 標準包裝:1
MIC23150-55YMT TR 功能描述:直流/直流開關調節(jié)器 2.0A 4MHz HyperLight Load Buck Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MIC23150-55YMT-TR 功能描述:Buck Switching Regulator IC Positive Fixed 1.35V 1 Output 2A 8-UFDFN 制造商:microchip technology 系列:HyperLight Load? 包裝:剪切帶(CT) 零件狀態(tài):停產(chǎn) 功能:降壓 輸出配置:正 拓撲:降壓 輸出類型:固定 輸出數(shù):1 電壓 - 輸入(最小值):2.7V 電壓 - 輸入(最大值):5.5V 電壓 - 輸出(最小值/固定):1.35V 電壓 - 輸出(最大值):- 電流 - 輸出:2A 頻率 - 開關:4MHz 同步整流器:是 工作溫度:-40°C ~ 125°C (TJ) 安裝類型:表面貼裝 封裝/外殼:8-UFDFN 供應商器件封裝:8-TDFN(2x2) 標準包裝:1