ISL78226 Datasheet, PDF (79/94 Pages) Intersil Corporation – Cycle-by-cycle peak current limiting

ISL78226
V_IN Overvoltage Flag (0xD3: Bit 5)
The device detected V_IN undervoltage fault.
0XD3 BIT5
0
OK: V_IN is lower than overvoltage threshold.
1
V_IN Voltage is higher than overvoltage threshold.
DESCRIPTION
BAT12 UVLO Flag (0xD3: Bit 6)
BAT12 at current sense amplifier input voltage is lower than UVLO threshold.
0XD3 BIT6
DESCRIPTION
0
OK: BAT12 is higher than UVLO threshold.
1
BAT12 is lower than UVLO threshold.
POR Flag (0xD3: Bit 7)
The device detected Power-On Reset (POR) condition.
0XD3 BIT7
DESCRIPTION
0
OK: Normal operation
1
Detected POR condition. External MCU needs to load the control registers value if this bit is high. After completion of data
loading of control registers, need to clear this flag.
FAULT STATUS REGISTER-3 (0XD4)
Definition: Fault Status Register-3 LDO output fault status register
Data Length in Bytes: 1
Data Format: Bit Field
Typical: R/W
Protectable: Yes
Default Value: 00h
Units: N/A
REGISTER NAME
FAULT STATUS REGISTER-3 (0XD4)
Format
Bit Field
Bit Position
7
6
5
4
3
2
Access
R/W
R/W
R/W
R/W
R/W
R/W
Function
Reserved
MCU_VDD MCU_VDD
Undervoltage Overvoltage
Reserved
Default Value
0
0
0
0
0
0
1
R/W
0
0
R/W
PVCC Power-Good
0
PVCC Power-Good Flag (0xD4: Bit 0)
Indicates whether PVCC/VCC is in normal operation range or not.
0XD4 BIT0
0
PVCC is okay (4.8V < PVCC < 5.6V).
1
PVCC is out of target range.
DESCRIPTION
MCU_VDD Overvoltage Fault Flag (0xD4: Bit 4)
The device detected MCU_VDD overvoltage fault.
0XD4 BIT4
0
OK: MCU_VDD is not overvoltage.
1
MCU_VDD overvoltage condition detected.
DESCRIPTION
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FN8887.0
November 7, 2016