LTC4260
23
4260fc
For more information www.linear.com/LTC4260
applicaTions inForMaTion
Table 4. ALERT Register B (01h)Read/Write
BIT
NAME
OPERATION
B7
Reserved
Not Used
B6
GPIO Output
Output Data Bit to GPIO Pin When Configured as Output. Defaults to 0
B5
FET Short Alert
Enables Alert for FET Short Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B4
BD錚RST State Change Alert
Enables Alert When BD錚RST Changes State
1 = Enable Alert, 0 = Disable Alert (Default)
B3
Power Bad Alert
Enables Alert when Output Power is Bad
1 = Enable Alert, 0 = Disable Alert (Default)
B2
Overcurrent Alert
Enables Alert for Overcurrent Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B1
Undervoltage Alert
Enables Alert for Undervoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
B0
Overvoltage Alert
Enables Alert for Overvoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
Table 5. STATUS Register C (02h)Read Only
BIT
NAME
OPERATION
C7
FET On
Indicates State of FET
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 2mV While FET is Off
1 = FET is Shorted, 0 = FET is Not Shorted
C4
Board Present
Indicates if a Board is Present When BD錚RST is Low
1 = BD錚RST Pin Low, 0 = BD錚RST 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 Input Overvoltage When OV is High
1 = OV High, 0 = OV Low
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