參數(shù)資料
型號： LTC4280CUFD#PBF
廠商： Linear Technology
文件頁數(shù)： 25/28頁
文件大小： 291K
描述： IC CONTROLLER HOT SWAP QFN-24
標準包裝： 73
類型： 熱交換控制器
應用： 通用
內(nèi)部開關： 無
電源電壓： 2.9 V ~ 15 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-WFQFN 裸露焊盤
供應商設備封裝： 24-QFN（5x4）
包裝： 管件
LTC4280
25
4280f
 APPLICATIONS INFORMATION
Table 4. STATUS Register C (02h)Read
BIT
NAME
OPERATION
C7
FET On
1 = FET On, 0 = FET Off
C6
GPIO Input
State of the GPIO Pin; 1 = GPIO High, 0 = GPIO Low
C5
FET Short
Present
Indicates Potential FET Short if Current Sense Voltage Exceeds 1mV While FET is Off; 1 = FET is Shorted, 0 = FET is Not
Shorted
C4
EN
Indicates if the LTC4280 is enabled when EN is low; 1 = EN Pin Low, 0 = EN Pin High
C3
Power Bad
Indicates Power is Bad when FB is low; 1 = FB Low, 0 = FB High
C2
Overcurrent
Indicates Overcurrent Condition During Cool Down Cycle; 1 = Overcurrent, 0 = Not Overcurrent
C1
Undervoltage
Indicates Input Undervoltage when UV is Low; 1 = UV Low, 0 = UV High
C0
Overvoltage
Indicates V
DD
 or OV Input Overvoltage when OV is High; 1 = OV High, 0 = OV Low
Table 5. FAULT Register D (03h)Read/Write
BIT
NAME
OPERATION
D7:6    Reserved
D5
FET Short Fault
Occurred
Indicates Potential FET Short was Detected when Measured Current Sense Voltage Exceeded 1mV while FET was Off;
1 = FET is Shorted, 0 = FET is Good
D4
EN Changed
State
Indicates That the LTC4280 was Enabled or Disabled when EN Changed State; 1 = EN Changed State, 0 = EN Unchanged
D3
Power Bad
Fault Occurred
Indicates Power was Bad when FB when Low; 1 = FB was Low, 0 = FB was High
D2
Overcurrent
Fault Occurred
Indicates Overcurrent Fault Occurred; 1 = Overcurrent Fault Occurred, 0 = Not Overcurrent Faults
D1
Undervoltage
Fault Occurred
Indicates Input Undervoltage Fault Occurred when UV went Low; 1 = UV was Low, 0 = UV was High
D0
Overvoltage
Fault Occurred
Indicates Input Overvoltage Fault Occurred when OV went High; 1 = OV was High, 0 = OV was Low
Table 6. SENSE Register E (04h)Read/Write
BIT
NAME
OPERATION
E7:0
SENSE Voltage Measurement   Sense Voltage Data. 8-Bit Data with 151糣 LSB and 38.45mV Full Scale.
Table 7. SOURCE Register F (05h)Read/Write
BIT
NAME
OPERATION
F7:0
SOURCE Voltage Measurement    Source Voltage Data. 8-Bit Data with 60.5mV LSB and 15.44V Full Scale.
Table 8. ADIN Register G (06h)Read/Write
BIT
NAME
OPERATION
G7:0
ADIN Voltage Measurement
ADIN Voltage Data. 8-Bit Data with 4.82mV LSB and 1.23V Full Scale.
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