PS401-I/SS Microchip Technology, PS401-I/SS Datasheet - Page 28

• Manufacturer Part Number: PS401-I/SS
• Description: IC FUEL GAUGE BATTERY MGR 28SSOP
• Manufacturer: Microchip Technology

Specifications of PS401-I/SS

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PS401
TABLE 8-4:
DS40238B-page 28
ChrgCurr
ChrgCurrOff
ChrgMaxTemp
ChrgMinTemp
ChrgVolt
ChrgVoltOff
ClrFullyChrg
ClrFullyDischrg
DishrgMaxTemp
Parameter
Name
CHARGE CONTROL
Loc.
OTP
OTP
OTP
OTP
OTP
EE
EE
EE
EE
# Bytes
2
2
2
2
2
2
1
1
2
Lower
Limit
0
0
0
0
0
0
0
0
0
Upper
65535
65535
65535
65535
65535
65535
65535
Limit
255
255
Typical
16800
16800
Value
3500
100
800
200
115
800
13
This is the full charging current that the
battery requires during normal charging. It
can be broadcasted to the charger or read
from the PS401.
Trickle charging current. This is a small
amount of current that the charger should
deliver when full charging needs to be
halted temporarily due to high temperature.
Temperature threshold when charging,
coded value = (Celsius*10+200). When
the temperature exceeds ChargeMaxTemp
and the battery is charging, then
ChargingCurrent is set to ChargingCurrOff
and ChargingVoltage is set to
ChargingVoltOff.
Low temperature threshold, charging coded
value = (Celsius*10+200). When charging,
if the temperature is less than
ChargeMinTemp, then ChargingCurrent
is set to ChargingCurrOff and
ChargingVoltage is set to ChargingVoltOff.
This is the voltage required by the battery
during normal charging.
Voltage required when charging should be
halted.
Reset FULLY_CHARGED bit at this level,
128 = 100%. Once the FULLY_CHARGED
bit is set, taper or pulse current will not be
monitored any more. When discharging
begins, the FULLY_CHARGED bit must
remain set until the cell voltages are below
EOC_VOLT, so that a small current will not
trigger a false end-of-charge trigger. Thus,
ClearFullyCharged is set at about 90%.
FULLY_CHARGED bit will be on until the
battery has discharged to less than 90%.
Reset FULLY_DISCHARGED bit,
128 = 100%. Once fully discharged bit is
set, it will stay set until capacity rises above
this value, typically 10%.
Temperature threshold when discharging
Coded value = (Celsius*10+200). When
discharging, if the temperature exceeds
DischargeMaxTemp, then ChargingCurrent
is set to ChargingCurrOff and
ChargingVoltage is set to ChargingVoltOff.
Operational Description
 2003 Microchip Technology Inc.