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參數資料
| 型號： | LT4220IGN#TR |
| 廠商： | Linear Technology |
| 文件頁數： | 3/16頁 |
| 文件大?。?/td> | 259K |
| 描述： | IC CTLR HOTSWAP DUAL 16-SSOP |
| 標準包裝： | 2,500 |
| 類型： | 熱交換控制器 |
| 應用： | 通用 |
| 內部開關： | 無 |
| 電源電壓： | 2.7 V ~ 16.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
3
LT4220
4220f
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I
INFB
+
FB
+
Input Current
FB
+
= 3V
q
0.09
?
礎
I
INFB
FB
Input Current
FB
= 3V
q
0.08
?
礎
V
FB
+
H
FB
+
PWRGD Threshold Line Regulation
V
CC
= 2.7V, V
EE
= 2.7V to V
CC
= 16.5V, V
EE
= 16.5V q
0.015
0.15
mV/V
VFB
H
FB
PWRGD Threshold Line Regulation
V
CC
= 2.7V, V
EE
= 2.7V to V
CC
= 16.5V, V
EE
= 16.5V q
0.05
0.5
mV/V
V
SENSE
+ SENSE
+
Trip Voltage (V
CC
V
SENSE
+)
V
FB
+ = 0V, GATE
+
0.5V
q
6
15
22
mV
V
FB
+ = 1V, GATE
+
0.5V
36
48
60
mV
V
SENSE
SENSE
Trip Voltage (V
SENSEK
V
SENSE
) V
FB
= 0V, GATE
0.5V
q
10
15
22
mV
V
FB
= 1V, GATE
0.5V
43
52
61
mV
I
GATEUP
+ GATE
+
Pull-Up Current
Charge Pump On, V
GATE
+ = 7V
q
9
13
17
礎
I
GATEUP
GATE
Pull-Up Current
V
GATE
= 3V
q
6
10
14
礎
I
GATEDN
+ GATE
+
Pull-Down Current
Any Fault Condition, V
GATE
+ = 1V
q
20
40
60
mA
I
GATEDN
GATE
Pull-Down Current
Any Fault Condition, V
GATE
= V
EE
+ 4V
q
30
70
130
mA
V
GATE
+ External N-Channel GATE
+
Drive
V
GATE
+ V
CC
, V
CC
= 2.7V, V
EE
= 2.7V
q
3.5
4
6
V
V
CC
= 5V to 16.5V, V
EE
= 5V to 16.5V
5
6.5
8
V
V
GATE
External N-Channel GATE
Drive
V
GATE
V
EE
, V
CC
= 2.7V, V
EE
= 2.7V
q
3.5
5.2
6
V
V
CC
= 5V to 16.5V, V
EE
= 5V to 16.5V
7.5
8.5
9
V
V
TIMERH
TIMER High Threshold, Sets FAULT
q 1.22
1.24
1.26
V
V
TIMERL
TIMER Low Threshold, Allows Restart
q
0.4
0.5
0.6
V
I
TIMERUP
TIMER Pull-Up Current
TIMER = 0V
q
40
65
85
礎
I
TIMERDN
TIMER Pull-Down Current
TIMER = 1V
q
2
3.3
4.5
礎
I
TIMER(R)
TIMER Current Ratio
I
TIMERDN
/I
TIMERUP
5
7
%
V
OL
PWRGD Output Low Voltage
I
O
= 2mA
q
0.3
V
I
O
= 5mA
0.5
V
I
OH
PWRGD Leakage Current
V
PWRGD
= 16.5V
q
0.1
2
礎
V
FOL
FAULT Output Low Voltage
I
O
= 2mA
q
0.3
V
I
O
= 5mA
0.5
V
I
FPH
FAULT Leakage Current
V
FAULT
= 16.5V
q
0.06
2
礎
V
TRKTHR
TRACK Input Threshold
q
0.3
0.8
1.1
V
I
TRK
TRACK Input Current
TRACK = 16.5V
q
0.05
2
礎
V
TRKFB
+ TRACK Mode FB
+
Threshold
I
GATE
+ = 0?/SPAN>A, TRACK = V
CC
(Note 3)
q
40
70
mV
V
TRKFB
TRACK Mode FB
Threshold
I
GATE
= 0?/SPAN>A, TRACK = V
CC
(Note 3)
q
40
80
mV
DC ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25?/SPAN>C. V
CC
= 5V, V
EE
= 5V, unless otherwise noted.
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