STC3100IQT STMicroelectronics, STC3100IQT Datasheet - Page 11

• Manufacturer Part Number: STC3100IQT
• Description: IC BATTERY MON W/GUAGE 8-DFN
• Manufacturer: STMicroelectronics
• Type: Battery Monitoringr

Specifications of STC3100IQT

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Product: Charge Management
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Svhc: No SVHC (15-Dec-2010)
• Base Number: 3100
• Battery Management Function: Monitor
• Charge Current Max: 2.5A
• Control Interface: I2C
• Input Voltage Max: 5.5V
• No. Of Pins: 8
• Rohs Compliant: Yes
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Mounting: Surface Mount
• Pin Count: 8
• Operating Temperature Classification: Industrial
• For Use With: 497-10045 - BOARD EVAL BATT MONITOR STC3100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8824-2

STC3100
7.5
Unique device ID
The STC3100 provides a means to identify the battery pack or the subsystem. Each device
has its own unique 8-byte ID made of an 8-bit part ID (value = 10h for the STC3100), a
48-bit random unique ID and an 8-bit CRC.
The CRC-8 is calculated according to bytes REG_ID0 to REG_ID6 using the "x8 + x2 + x +
1" polynomial with a zero initial value.
Since the device ID is downloaded from the ROM at power-up and is subsequently kept in
read-only RAM locations together with the general-purpose RAM registers, the device ID
can also be used as an indicator of the RAM integrity.
Functional description
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