ISL78226 Datasheet, PDF (66/94 Pages) Intersil Corporation – Cycle-by-cycle peak current limiting

ISL78226
BAT12 AND BAT48 UNDERVOLTAGE THRESHOLD SETTING REGISTER (0XBA)
Definition: BAT12 and BAT48 input and output undervoltage level (1st level = warning 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
BAT12/BAT48 UNDERVOLTAGE THRESHOLD SETTING REGISTER (0XBA)
Bit Field
5
4
3
2
1
0
R/W
R/W
R/W
R/W
R/W
R/W
BAT48 Undervoltage (1st Level = Warning Level) BAT12 Undervoltage (1st Level = Warning Level)
Threshold Setting Bit
Threshold Setting Bit
0
0
0
0
0
0
BAT12 Undervoltage (1st Level = Warning Level) Threshold Setting Bit (0xBA: Bit 2:0)
Sets the first level (= warning level) of BAT12 undervoltage fault threshold.
BIT2
BIT1
BIT0
DESCRIPTION
0
0
0
85% of BAT12 target voltage (default)
0
0
1
82.5% of BAT12 target voltage
0
1
0
80% of BAT12 target voltage
0
1
1
77.5% of BAT12 target voltage
1
0
0
75% of BAT12 target voltage
1
0
1
72.5% of BAT12 target voltage
1
1
0
87.5% of BAT12 target voltage
1
1
1
90% of BAT12 target voltage
BAT48 Undervoltage (1st Level = Warning Level) Threshold Setting Bit (0xBA: Bit 5:3)
Sets the first level (= warning level) of BAT48 undervoltage fault threshold.
BIT2
BIT1
BIT0
DESCRIPTION
0
0
0
75% of BAT12 target voltage (default)
0
0
1
71% of BAT12 target voltage
0
1
0
67% of BAT12 target voltage
0
1
1
63% of BAT12 target voltage
1
0
0
58% of BAT12 target voltage
1
0
1
54% of BAT12 target voltage
1
1
0
79% of BAT12 target voltage
1
1
1
83% of BAT12 target voltage
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FN8887.0
November 7, 2016