LTC4260 Linear Technology, LTC4260 Datasheet - Page 22

• Manufacturer Part Number: LTC4260
• Description: Positive High Voltage Hot Swap Controller
• Manufacturer: Linear Technology

APPLICATIO S I FOR ATIO
LTC4260
Table 4. ALERT Register B (01h)—Read/Write
BIT
B7
B6
B5
B4
B3
B2
B1
B0
Table 5. STATUS Register C (02h)—Read Only
BIT
C7
C6
C5
C4
C3
C2
C1
C0
22
NAME
Reserved
GPIO Output
FET Short Alert
BD_PRST State Change Alert
Power Bad Alert
Overcurrent Alert
Undervoltage Alert
Overvoltage Alert
NAME
FET On
GPIO Input
FET Short Present
Board Present
Power Bad
Overcurrent
Undervoltage
Overvoltage
U
U
W
OPERATION
Not Used
Output Data Bit to GPIO Pin When Configured as Output. Defaults to 0
Enables Alert for FET Short Condition
1 = Enable Alert, 0 = Disable Alert (Default)
Enables Alert When BD_PRST Changes State
1 = Enable Alert, 0 = Disable Alert (Default)
Enables Alert when Output Power is Bad
1 = Enable Alert, 0 = Disable Alert (Default)
Enables Alert for Overcurrent Condition
1 = Enable Alert, 0 = Disable Alert (Default)
1 = Enable Alert, 0 = Disable Alert (Default)
Enables Alert for Overvoltage Condition
1 = Enable Alert, 0 = Disable Alert (Default)
OPERATION
Indicates State of FET
1 = FET On, 0 = FET Off
State of the GPIO Pin
1 = GPIO High, 0 = GPIO Low
Indicates Potential FET Short if Current Sense Voltage Exceeds 2mV While FET is Off
1 = FET is Shorted, 0 = FET is Not Shorted
Indicates if a Board is Present When BD_PRST is Low
1 = BD_PRST Pin Low, 0 = BD_PRST Pin High
Indicates Power is Bad When FB is Low
1 = FB Low, 0 = FB High
Indicates Overcurrent Condition During Cool Down Cycle
1 = Overcurrent, 0 = Not Overcurrent
Indicates Input Undervoltage When UV is Low
1 = UV Low, 0 = UV High
Indicates Input Overvoltage When OV is High
1 = OV High, 0 = OV Low
Enables Alert for Undervoltage Condition
U
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