MIC7400_15 Datasheet, PDF (51/68 Pages) Micrel Semiconductor – Configurable PMIC, Five-Channel Buck Regulator Plus One-Boost with HyperLight Load® and I2C Control

Micrel, Inc.
MIC7400
Fault Registers (02’h)
This register indicates the over-current flag for each regulator and one global overtemperature (OT). These register bits
are set by an over current condition and reset by writing a logic “0” to each bit by the I²C host.
If the fault condition persists, the bit will be set to logic “1” again immediately by the MIC7400 after it is written to logic “0”
by the host.
Table 7. Overcurrent Status Fault Register
Register Name
FAULT_REG
Overcurrent Status Fault Register
Address
0x02’h
Field
bit R/W Default Description
REG1OC
0 R/W
Regulator 1 Overcurrent
0
0 = No Fault
REG2OC
1 R/W
Regulator 2 Overcurrent
0
0 = No Fault
REG3OC
2 R/W
Regulator 3 Overcurrent
0
0 = No Fault
REG4OC
3 R/W
Regulator 4 Overcurrent
0
0 = No Fault
REG5OC
4 R/W
Regulator 5 Overcurrent
0
0 = No Fault
REG6OC
5 R/W
Regulator 6 Overcurrent
0
0 = No Fault
Reserved
6 R/W
0
Reserved
Overtemperature
OT
7 R/W
0
0 = No Fault
1 = Fault
1 = Fault
1 = Fault
1 = Fault
1 = Fault
1 = Fault
1 = Fault
March 3, 2015
51
Revision 2.0