Linear Technology LTC4260, Техническое описание

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LTC4260
23
4260fc
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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PRST State Change Alert Enables Alert When BDPRST 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PRST is Low
1 = BDPRST Pin Low, 0 = BDPRST 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