参数资料
型号: PS501T-I/SS
厂商: Microchip Technology
文件页数: 17/42页
文件大小: 0K
描述: IC BATTERY MANAGER REPROG 28SSOP
标准包装: 1
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: 标准包装
其它名称: PS501T-I/SSDKR
PS501
Each condition in the table is processed by applying a
“comparison function” to the selected data (“condition
selection”) and the given constant (“condition thresh-
old”). The result of this operation (“true” or “false”) from
each condition in the group is combined as dictated by
the “AND-OR” “combination function” bit in the flag
byte. Because the “AND” function has precedence over
the “OR”, processing the CG can be described as
OR’ing subgroups of ANDs (see Example 7-1 below).
One 8-bit timer (clocked at 500 msec) is associated
with all 16 CSF(s). The timer compared to its threshold
is an implied “AND” term to the CG (i.e., if processing
of the CG to set the CSF results in “true”, the timer is
incremented and if timer >= threshold, the SF is set;
otherwise, the SF is not set even though the GC is sat-
isfied). If processing of the CG to set the CSF results in
“false”, the timer is set to zero. The timer is not allowed
to increment past the threshold.
The conditions in the order they are stored in memory
will build the activation equation until bit 7 of byte 1 is
set, signifying the last condition of the group. At that
point, the next group of conditions is the Reset
equation. When the next to last condition bit is set, a
new activation group begins.
EXAMPLE 7-1:
CONDITION GROUPS
Example Condition Group:
(V CELL -min < 3200) .AND. (CURR > 100) .OR. (TEMP > 60) .AND. (CURR > 200)
because of precedence the equation would be interpreted:
((V CELL -min < 3200) .AND. (CURR > 100)) .OR. ((TEMP > 60) .AND. (CURR > 200))
Example Reset Condition Group:
(V CELL -min > 3200) OR (CURR = 200)
TABLE 7-3:
CONDITIONS FOR EXAMPLE 7-1
Condition
1
2
3
4
1
2
Byte 1
x01
x10
x00
x80
x00
x82
Byte 2
x42
x0A
x08
x0A
x42
x0A
Byte 3, 4
x0C80
x0064
x0D02
x00C8
x0C80
x00C8
Description
OR V CELL -min < 3200
AND CURR > 100
OR TEMP > 60°C (3330 degrees K * 10)
AND CURR > 200 (last condition bit set)
OR V CELL -min > 3200
OR CURR = 200 (last condition bit set)
TABLE 7-4:
PARAMETERS
Name
SAFE_GPIO_MASK_00
SAFE_GPIO_MASK_01
SAFE_GPIO_MASK_02
SAFE_GPIO_MASK_03
SAFE_GPIO_MASK_04
SAFE_GPIO_MASK_05
SAFE_GPIO_MASK_06
SAFE_GPIO_MASK_07
SAFE_GPIO_MASK_08
SAFE_GPIO_MASK_09
SAFE_GPIO_MASK_10
SAFE_GPIO_MASK_11
SAFE_TIMER_LIMIT_0
SAFE_TIMER_LIMIT_1
Length
2
2
2
2
2
2
2
2
2
2
2
2
1
1
Description
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Mask applied to the CSF, if <> 0 , GPIO is set
Timer threshold/limit (500 msec tics)
? 2004 Microchip Technology Inc.
DS21818C-page 17
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