參數(shù)資料
型號(hào): LTC4216IMS
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: Ultralow Voltage Hot Swap Controller
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數(shù): 15/24頁
文件大?。?/td> 277K
代理商: LTC4216IMS
LTC4216
15
Figure 9. Normal Power-Up Sequence (with Analog Current Limiting)
SENSEP
ON
TIMER
SS
GATE
V
OUT
I
LOAD
FILTER
RESET
V
CC
POWER GOOD
V
FB
> 0.6V
LOAD CURRENT REGULATING
AT 40mV/R
SENSE
POWER BAD
V
FB
< 0.6V
(V
GATE
– V
OUT
) > V
GS(TH)
(V
SENSEP
– V
SENSEN
) > 25mV
FILTER RAMPS UP WHEN (V
SENSEP
– V
SENSEN
) > 25mV
CHECK FOR GATE, FILTER, TIMER, SS < 0.2V AND FAULT HIGH
ELECTRONIC CIRCUIT BREAKER ARMED
OUTPUT IN ANALOG CURRENT LIMIT,
(V
SENSEP
– V
SENSEN
) = 40mV
2ND TIMING CYCLE CANNOT START WITH
OUTPUT IN ANALOG CURRENT LIMIT
(V
SENSEP
– V
SENSEN
) < 25mV
TRACKS SS RAMP
IN REGULATION
20μA
60μA
2.4μA
V
TMR(TH)
2μA
V
TMR(TH)
2μA
10μA
10μA
1μA
CHECK FOR GATE,
FILTER, TIMER,
SS < 0.2V
PLUG-IN CYCLE
FIRST TIMING CYCLE
POWER-GOOD DELAY
SECOND TIMING CYCLE
4216 F09
1 2
3
4
5 6
7 8
9 10 11
12
16
15
14
13
0.72V
0.4V
0.8V
RESET
GOES HIGH
IN RESET
MODE
(ON < 0.4V)
ON GOES LOW
(ON < 0.72V)
OUTPUT NO LONGER
IN CURRENT LIMIT
RESET PULLED LOW
DUE TO POWER BAD
V
FILT(TH)
APPLICATIU
W
U
U
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