ISL78226 Datasheet, PDF (83/94 Pages) Intersil Corporation – Cycle-by-cycle peak current limiting

ISL78226
BAT48 Output Overvoltage Limit (Protection Level) Fault Flag (0xD7: Bit 4)
The device detected BAT48 output overvoltage limit fault (protection level) in Boost mode.
0XD7 BIT4
DESCRIPTION
0
OK: No BAT48 output overvoltage limit fault.
1
BAT48 output overvoltage limit fault (protection level) is detected.
BAT48 Output Undervoltage Limit (Protection Level) Fault Flag (0xD7: Bit 5)
The device detected BAT48 output undervoltage limit fault (protection level) in Boost mode.
0XD7 BIT5
DESCRIPTION
0
OK: No BAT48 output undervoltage limit fault.
1
BAT48 output undervoltage limit fault (protection level) is detected.
BAT48 Input Overvoltage Limit (Protection Level) Fault Flag (0xD7: Bit 6)
The device detected BAT48 input overvoltage limit fault (protection level) in Buck mode.
0XD7 BIT6
DESCRIPTION
0
OK: No BAT48 input overvoltage limit fault.
1
BAT48 input overvoltage limit fault (protection level) is detected.
BAT48 Input Undervoltage Limit (Protection Level) Fault Flag (0xD7: Bit 7)
The device detected BAT48 input undervoltage limit fault (protection level) in Boost mode.
0XD7 BIT7
DESCRIPTION
0
OK: No BAT48 input undervoltage limit fault.
1
BAT48 input undervoltage limit fault (protection level) is detected.
FAULT STATUS REGISTER-7 (0XD8)
Definition: Fault Status Register-7 potential serious 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
Format
Bit Position
Access
Function
Default Value
7
R/W
0
6
R/W
Reserved
0
5
R/W
0
FAULT STATUS REGISTER-7 (0XD8)
Bit Field
4
3
2
R/W
R/W
R/W
Flyback BAT48 Short L/S NMOS
NMOS Short to GND
Short
0
0
0
1
R/W
BAT12 Short
to GND
0
0
R/W
H/S NMOS
Short
0
Potential H/S NMOS Short flag (0xD8: Bit 0)
The device detected the potential external high-side NMOS short.
0XD7 BIT0
0
H/S NMOS not shorted
1
Potentially H/S NMOS is shorted
DESCRIPTION
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FN8887.0
November 7, 2016