MIC3003 Datasheet, PDF (43/75 Pages) Micrel Semiconductor – FOM Management IC with Internal Calibration

Micrel, Inc.
MIC3003
Warning Threshold Registers
Temperature High Warning Threshold
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default value for both bytes
0000 0000b = 00h (0 °C)
Serial address
A2h
Bytes addresses
MS byte (THIGHh): 04 = 04h
LS byte (THIGHl): 05 = 05h
Each LS bit of THIGHh represents one degree Celsius. THIGHl is not used, since all limit comparisons for temperature use
eight-bit values.
The eight bits of the high warning threshold value (THIGHh) are compared to the temperature result (TEMPh). WARN0 bit 7 is
set if Result > Threshold.
Temperature Low Warning Threshold
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default value for both bytes
0000 0000b = 00h (0 °C)
Serial address
A2h
Bytes addresses
MS byte (TLOWh): 06 = 06h
LS byte (TLOWl): 07 = 07h
Each LS bit of TLOWh represents one degree Celsius. TLOWl is not used, since all limit comparisons for temperature use
eight-bit values.
The eight bits of the high warning threshold value (TLOWh) are compared to the temperature result (TEMPh). WARN0 bit 6 is
set if Result < Threshold.
Voltage High Warning Threshold
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default value for both bytes
0000 0000b = 00h (0 V)
Serial address
A2h
Bytes addresses
MS byte (VHIGHh): 12 = 0Ch
LS byte (VHIGHl): 13 = 0Dh
Each LS bit of VHIGHh represents 25.6 mV and each LS bit of VHIGHl represents 0.1 mV. The sixteen-bit threshold value
(VHIGHh:VHIGHl) is compared to the sixteen bits value of the voltage result (VINh:VINl). WARN0 bit 5 is set if
Result > Threshold.
Voltage Low Warning Threshold
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default value for both bytes
0000 0000b = 00h (0 V)
Serial address
A2h
Byte addresses
MS byte (VLOWh): 14 = 0Eh
LS byte (VLOWl): 15 = 0Fh
Each LS bit of VLOWh represents 25.6 mV and each LS bit of VLOWl represents 0.1 mV. The sixteen-bit threshold value
(VLOWh:VLOWl) is compared to the sixteen-bit value of the voltage result (VINh:VINl). WARN0 bit 4 is set if
Result < Threshold.
November 2009
43
M9999-111209-C
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