STW4102IQT STMicroelectronics, STW4102IQT Datasheet - Page 26

• Manufacturer Part Number: STW4102IQT
• Description: IC LI-ION BATT CHRGR DUAL 24QFN
• Manufacturer: STMicroelectronics

Specifications of STW4102IQT

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.25 V ~ 16 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Product: Charge Management
• Output Voltage: 4.7 V
• Output Current: 100 mA to 1000 mA
• Operating Supply Voltage: 4.25 V to 16 V
• Supply Current: 2 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 30 C
• Mounting Style: SMD/SMT
• For Use With: 497-8514 - BOARD EVAL STW4102/STM32497-8338 - BOARD EVAL BASED ON STW4102
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6840-2

I
10.2
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2
C interface
Figure 25. Byte write operation
Register mapping
The mapping of all registers is shown in
in
falling edge). Charge and discharge internal accumulators are not affected by RESETN.
Table 18.
REG_CHG0
REG_CHG1
REG_WDOG
REG_CG
REG_CHARGE_LOW
REG_CHARGE_MID
REG_CHARGE_HIGH
REG_DISCHARGE_LOW
REG_DISCHARGE_MID
REG_DISCHARGE_HIGH
REG_CONVDATA_LOW
REG_CONVDATA_HIGH
REG_CONVNUMBER_LOW
REG_CONVNUMBER_HIGH
REG_ADCTRL
REG_ADDATA_LOW
REG_ADDATA_HIGH
Table 19
Start Device id
Start bit = SDAfalling when SCL=1
Stop bit = SDArising when SCL=1
Restart bit = start after a start
to
7 bits
Name
Register mapping
Table
W
35. Power-up values are set at power startup, or at reset (RESETN pin
A
Reg address
8bits
Address
(dec.)
16
17
18
19
20
21
22
0
1
2
3
4
5
6
7
8
9
A
Table
Reg data
8bits
Charge control and status
Charge enable
Watchdog control
Gas gauge control
Gas gauge charge data, bits 0-7
Gas gauge charge data, bits 8-15
Gas gauge charge data, bits 16-23
Gas gauge discharge data, bits 0-7
Gas gauge discharge data, bits 8-15
Gas gauge discharge data, bits 16-23
Gas gauge AD converter data, bits 0-7
Gas gauge AD converter data, bits 8-12
Number of conversions, bits 0-7
Number of conversions, bits 8-11
Battery voltage monitor control
Battery voltage monitor AD converter data, bits 0-7
Battery voltage monitor AD converter data, bits 8-10
18. Individual register descriptions are shown
A
Stop
Description
STw4102