参数资料
型号: MIC2585-2JYTS
厂商: Micrel Inc
文件页数: 17/28页
文件大小: 273K
描述: IC CTRLR HOT SWAP DUAL 24-TSSOP
标准包装: 62
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 1 V ~ 13.2 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 管件
March 2005
17
MIC2584/2585
MIC2584/2585
Micrel
The sequenced output feature is enabled for the MIC2585 by
placing a capacitor from CDLY to ground. The 1 option
allows for V
OUT2
 to follow V
OUT1
 and the 2 option allows for
V
OUT1
 to follow V
OUT2
 during start-up (See "Timing Dia-
grams, Figure 5").  The  sequenced  output  delay  time  is
determined using the following equation:
t
C
V
I
0.2  C    ( F)
DLY
DLY
DELAY
DELAY
DLY
E
?/DIV>
E
?/DIV>
?/DIV>
  (9)
where V
DELAY
, the CDLY pin threshold, is typically 1.235V,
I
DELAY
, the CDLY pin charge current, is typically 6礎, and
C
DLY
 is the capacitor connected to CDLY. Tables 2, 3, and 4
provide a quick reference for several timer calculations using
select standard value capacitors.
Undervoltage Lockout
Internal circuitry keeps both GATE output charge pumps off
until VCC1 and VCC2 exceed 2.165V and 0.8V, respectively.
C
POR
t
START
t
POR
0.01礔
1.2ms
5ms
0.033礔
4ms
16.5ms
0.05礔
6ms
25ms
0.1礔
12ms
50ms
0.33礔
40ms
165ms
0.47礔
56ms
235ms
1礔
120ms
500ms
Table 2. Selected Power-On Reset and
Start-Up Delays
C
FILTER
t
OCSLOW
220pF
110祍
680pF
340祍
1000pF
500祍
3300pF
1.6ms
0.01礔
5ms
0.047礔
23.5ms
0.1礔
50ms
0.33礔
165ms
Table 3. Selected Overcurrent Timer Delays
C
DLY
t
DLY
4700pF
950祍
0.01礔
2ms
0.047礔
9.5ms
0.1礔
20ms
0.33礔
66ms
0.82礔
165ms
1礔
200ms
2.2礔
440ms
Table 4. Selected Sequenced Output Delays
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