Linear Technology LTC4260, Техническое описание, Страница: 24 / 30

LTC4260
24
4260fc
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applicaTions inForMaTion
Table 6. 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 2mV
(code 0000111) While FET was Off
1 = FET was Shorted, 0 = FET is Good
D4 Board Present Changes State Indicates that a Board was Inserted or Extracted When BDPRST Changed State
1 = BDPRST Changed State, 0 = BDPRST Unchanged
D3 Power Bad Fault Occurred Indicates Power was Bad When FB Went Low (C3 = 1)
While Gate-to-Source was High
1 = FB was Low and Gate was High, 0 = FB was Low and Gate was Low, or FB was High and Gate was
High or Low
D2 Overcurrent Fault Occurred Indicates Overcurrent Fault Occurred
1 = Overcurrent Fault Occurred, 0 = No 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 7. SENSE Register E (04h)—Read/Write
BIT NAME OPERATION
E7:0 SENSE Voltage Data V
DD
-SENSE Current Sense Voltage Data. 8-Bit Data with 300µV LSB and 76.8mV Full Scale
Table 8. SOURCE Register F (05h)—Read/Write
BIT NAME OPERATION
F7:0 SOURCE Voltage Data SOURCE Pin Voltage Data. 8-Bit Data with 400mV LSB and 102.4V Full Scale
Table 9. ADIN Register G (06h)—Read/Write
BIT NAME OPERATION
G7:0 ADIN Voltage Data ADIN Pin Voltage Data. 8-Bit Data with 10mV LSB and 2.56V Full Scale