BQ2040SN-C408 BENCHMARQ, BQ2040SN-C408 Datasheet - Page 12

• Manufacturer Part Number: BQ2040SN-C408
• Description: BATTERY CHARGE MONITOR, SMD, 2040
• Manufacturer: BENCHMARQ

Specifications of BQ2040SN-C408

• Battery Management Function: Charger, Status Monitor
• Battery Type: Li-Ion / NiCd / NiMH
• Supply Voltage Range: 3V To 6.5V
• Battery Ic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: 0°C
• Interface Type: 2-Wire, Serial

bq2040
Note:
ManufacturerAccess
RemaningCapacityAlarm
RemainingTimeAlarm
BatteryMode
AtRate
AtRateTimeToFull
AtRateTimeToEmpty
AtRateOK
Temperature
Voltage
Current
AverageCurrent
MaxError
RelativeStateOfCharge
AbsoluteStateOfCharge
RemainingCapacity
FullChargeCapacity
RunTimeToEmpty
AverageTimeToEmpty
AverageTimeToFull
ChargingCurrent
ChargingVoltage
Battery Status
CycleCount
DesignCapacity
DesignVoltage
SpecificationInfo
ManufactureDate
SerialNumber
Reserved
ManufacturerName
DeviceName
1. Defaults after reset or power-up.
Function
Table 4. bq2040 Register Functions
0x1d - 0x1f
Code
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0a
0x0b
0x0d
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1a
0x1b
0x20
0x21
0x0c
0x0e
0x1c
0x0f
12
read/write
read/write
read/write
read/write
read/write
Access
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
read
-
minutes
minutes
minutes
Boolean
minutes
minutes
minutes
bit flags
percent
percent
percent
bit flag
integer
string
string
Units
0.1°K
mAh
mAh
mAh
cycle
mAh
mA
mV
mA
mA
mA
mV
mV
-
-
-
-
Defaults
2930
100
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
0
0
-
-
-
-
-
-
-
-
-
-
-
-
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1