MAX11068EVKIT+ Maxim Integrated Products, MAX11068EVKIT+ Datasheet - Page 37

• Manufacturer Part Number: MAX11068EVKIT+
• Description: KIT SMART BATT MEASUREMENT 12CH
• Manufacturer: Maxim Integrated Products

Specifications of MAX11068EVKIT+

• Main Purpose: Power Management, Battery Monitor, Car
• Utilized Ic / Part: MAX11068
• Primary Attributes: Monitors Current, Voltage, Temperature
• Secondary Attributes: 1 ~ 12 Cell- Li-Ion, 1 ~ 12 Cell- NiMH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Embedded: -

Table 7. STATUS Register Description (Address 0x02)
D15
D14
D13
D12
D11
D10
BIT
D9
D8
D7
ALRTMSMTCH
ALRTTCOLD
ALRTTHOT
ALRTFMEA
ALRTACK
ALRTPEC
RSTSTAT
ALRTOV
ALRTUV
NAME
12-Channel, High-Voltage Sensor, Smart
Reset Status:
RSTSTAT = 1 after a power-reset event. Clear RSTSTAT to 0 after power-up and after a suc-
cessful HELLOALL command to detect any future resets. Writing a 1 to this bit has no effect.
PEC errors should be ignored until this bit is cleared.
Cell Overvoltage Alert:
ALRTOV = 1 when a corresponding overvoltage has occurred. Check the ALRTOVCELL reg-
ister to determine which cell is responsible. This is a read-only bit. All voltage alerts are auto-
matically cleared when the next conversion occurs and the alert condition disappears.
Cell Undervoltage Alert:
ALRTUV = 1 when a corresponding undervoltage has occurred. Check the ALRTUVCELL reg-
ister to determine which cell is responsible. This is a read-only bit. All voltage alerts are auto-
matically cleared when the next conversion occurs and the alert condition disappears.
Mismatch Alert:
ALRTMSMTCH = 1 when MAXCELL - MINCELL > MSMTCH threshold: This is a read-only bit.
All voltage alerts are automatically cleared when the next conversion occurs and the alert con-
dition disappears.
Undertemperature Alert:
Set when AIN1 > AINUT or AIN0 > AINUT. This is a read-only bit. All temperature alerts are
automatically cleared when the next conversion occurs and the alert condition disappears. The
comparison with AINUT assumes an NTC thermistor is used as part of the suggested applica-
tion circuit.
Overtemperature Alert:
Set when AIN1 < AINOT or AIN0 < AINOT. This is a read-only bit. All temperature alerts are
automatically cleared when the next conversion occurs and the alert condition disappears. The
comparison with AINOT assumes an NTC thermistor is used as part of the suggested applica-
tion circuit.
Packet Error Check Alert:
Indicates a communication failure occurred due to a slave or master PEC error. The PEC is a
CRC-8 error check byte, calculated on all message bytes except the ACK, NACK, START, and
STOP bits. The ALRTPEC bit must be cleared by writing a 0 to this bit location to detect future
PEC failures. Writing a 1 to this bit has no effect.
Acknowledge Communication Alert:
Indicates a communication fault due to an unexpected slave or master NACK in the ACK/
NACK bit position. ALRTACK must be cleared by writing this bit to 0 to detect future NACK
events. Writing a 1 to this bit has no effect.
FMEA Status Alert:
Indicates that there is an FMEA alert. This bit is the logical OR of the alert bits in the FMEA reg-
ister. Check the FMEA register to determine which alerts are active.
Data-Acquisition Interface
FUNCTION
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