参数资料
型号: PS501-I/SS
厂商: Microchip Technology
文件页数: 29/42页
文件大小: 0K
描述: IC FIELD REPROG BATT MGR 28SSOP
标准包装: 47
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 5.6 V ~ 18 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
PS501
TABLE 9-4:
CHARGE CONTROL (CONTINUED)
Parameter
Name
PrechargeCurr
#
Bytes
2
Lower
Limit
0
Upper
Limit
65535
Typical
Value
100
Operational Description
Precharge current required. Posted to SBData
ChargingCurrent during precharge conditions.
PrechargeMax
2
0
65535
500
Maximum precharge current allowed. When exceeded under
precharge conditions, SBData ChargingCurrent is set to
zero.
PrechargeTemp
1
0
255
60
Precharge temperature, Coded value = (Celsius * 10 + 200)/4.
This is the temperature under which precharging should occur.
PrechargeVCell
2
0
65535
2500
Precharge cell voltage. This is the voltage under which
precharging should occur.
SOCThreshold
1
0
255
125
Second EOC trigger based on State-Of-Charge,
100 = 100%. A second End-Of-Charge trigger is built into the
PS501, such that if the State-Of-Charge exceeds a certain
value, End-Of-Charge will be forced, even if the taper or
pulse current was not detected. When State-Of-Charge
reaches SOCThreshold , then End-Of-Charge will trigger.
StableCurr
1
0
255
50
EOC trigger current deviation level. In order to prevent
current spikes from causing a premature taper current trig-
ger, the average current and the instantaneous current must
be within StableCurr of each other for the End-Of-Charge to
trigger on the taper current.
TaperCRate
6
0
255
3
Upper limit EOC taper current based on temperature,
TaperCRate = 64/1C. Example: If 1C = 2200 and
TaperCRate = 3, then the upper limit for taper window is
3/64 * 2200 = 103 mA.
TaperLow
1
0
255
1
Lower limit EOC taper current, TaperLow = 64/1C.
Example: If 1C = 2200 and TaperLow = 1, then the lower
limit for taper window is 1/64 * 2200 = 34 mA.
TaperTemp
5
0
255
125
Temperature corresponding to TaperCRate byte,
TaperTemp = (temp. °C * 10 + 200)/4.
Example: TaperTemp = 100 [(100 * 4 – 200)/10 = 20°C].
? 2004 Microchip Technology Inc.
DS21818C-page 29
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