ISL78226 Datasheet, PDF (67/94 Pages) Intersil Corporation – Cycle-by-cycle peak current limiting

ISL78226
BAT48 OVERVOLTAGE THRESHOLD SETTING REGISTER (0XBB)
Definition: BAT48 input and output overvoltage (first (warning) level and second (protection) level) threshold setting 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
6
R/W
R/W
Reserved
0
0
BAT48 OVERVOLTAGE THRESHOLD SETTING REGISTER (0XBB)
Bit Field
5
4
3
2
1
0
R/W
R/W
R/W
R/W
R/W
R/W
BAT48 Overvoltage (2nd lEvel = Protection BAT48 Overvoltage (1st Level = Warning Level)
Level) Threshold Setting Bit
Threshold Setting Bit
0
0
0
0
0
0
BAT48 Overvoltage (1st Level = Warning Level) Threshold Setting Bit (0xBB: Bit 2:0)
Sets the first level (= warning level) of BAT48 overvoltage fault threshold.
BIT2
BIT1
BIT0
DESCRIPTION
0
0
0
108% of BAT12 target voltage (default)
0
0
1
110% of BAT12 target voltage
0
1
0
113% of BAT12 target voltage
0
1
1
117% of BAT12 target voltage
1
0
0
121% of BAT12 target voltage
1
0
1
125% of BAT12 target voltage
1
1
0
106% of BAT12 target voltage
1
1
1
104% of BAT12 target voltage
BAT48 Overvoltage (2nd Level = Protection Level) Threshold Setting Bit (0xBB: Bit 5:3)
Sets the second level (= protection level) of BAT48 Overvoltage fault threshold.
BIT2
BIT1
BIT0
DESCRIPTION
0
0
0
125% of BAT12 target voltage (default)
0
0
1
129% of BAT12 target voltage
0
1
0
133% of BAT12 target voltage
0
1
1
138% of BAT12 target voltage
1
0
0
142% of BAT12 target voltage
1
0
1
146% of BAT12 target voltage
1
1
0
150% of BAT12 target voltage
1
1
1
121% of BAT12 target voltage
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FN8887.0
November 7, 2016