参数资料
型号: LT4220CGN
厂商: Linear Technology
文件页数: 2/16页
文件大小: 259K
描述: IC CNTRLR DUAL HOT SWAP 16-SSOP
标准包装: 100
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 2.7 V ~ 16.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-SSOP
包装: 管件
2
LT4220
4220f
SYMBOL    PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
V
CC
 Operating Range
q   2.7
16.5
V
I
CC
V
CC
 Supply Current
q
2.7
4
mA
V
EE
V
EE
 Operating Range
q    2.7
16.5
V
I
EE
V
EE
 Supply Current
1.6
2.4
mA
V
PLKO
V
CC
 Undervoltage Lockout
q    2.35
2.45
2.55
V
V
MLKO
V
EE
 Undervoltage Lockout
q    2.4
2.45
2.5
V
V
ON
+
H
ON
+
 ON Threshold
ON
+
 Rising
q    1.22
1.24
1.26
V
V
ON
+
HYS
ON
+
 Hysteresis
q
25
50
70
mV
V
ON
+
H
ON
+
 ON Threshold Line Regulation
V
CC
= 2.7V, V
EE
= 2.7V to V
CC
 = 16.5V, V
EE
 = 16.5V    q
0.02
0.15
mV/V
V
ON

H
ON

 ON Threshold Line Regulation
V
CC
= 2.7V, V
EE
= 2.7V to V
CC
 = 16.5V, V
EE
 = 16.5V    q
0.05
1
mV/V
V
ON

HYS
ON

 Hysteresis
q
25
50
70
mV
V
ON

H
ON

 ON Voltage Threshold
ON

 Falling
q    1.22
1.24
1.26
V
I
ON
+
ON
+
 Input Current
V
ON
+
 = 2V
q
0.01
?
I
ON

ON

 Input Current
V
ON

 = GND
q
0.01
?
V
FB
+
H
FB
+
 PWRGD Voltage Threshold
FB
+
 Rising
q    1.22
1.24
1.26
V
V
FB
+
HYS
FB
+
 Hysteresis
Gate = 5V
q
25
50
70
mV
V
FB

H
FB

 PWRGD Voltage Threshold
FB

 Falling
q    1.22
1.24
1.26
V
V
FB

HYS
FB

 Hysteresis
Gate = 3V
q
25
50
70
mV
(Notes 1, 2)
V
CC
 to GND ............................................................. 22V
V
EE
 to GND ........................................................... 22V
TRACK, TIMER ..............................  0.3V to V
CC
 + 0.3V
ON
+
, FB
+
................................. V
EE
 0.3V to V
CC
 + 0.3V
ON

, FB

.................................. V
EE
 0.3V to V
CC
+ 0.3V
GATE
+
................................................ 0.3V to V
CC
 + 8V
GATE

..............................16.5V with V
EE
 = 22V to 0V
SENSE
+
............................................. 0.3V to V
CC
 + 5V
SENSE

,
 
SENSEK ....................... V
EE
  0.3V to V
EE
+ 3V
PWRGD, FAULT................................. 0.3V to V
CC
 + 5V
Operating Temperature Range
LT4220C...........................................0癈 d T
A
 d 70癈
LT4220I ....................................... 40癈 d T
A
 d 85癈
Storage Temperature Range ................. 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)..................300癈
ABSOLUTE MAXIMUM RATINGS
W
W
PACKAGE/ORDER INFORMATION
U
U
ORDER PART
NUMBER
LT4220CGN
LT4220IGN
GN PART MARKING
4220
4220I
T
JMAX
 = 125癈, ?/DIV>
JA
 = 130癈/W
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.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
V
EE
SENSEK
SENSE

GATE

FB

ON

TRACK
TIMER
V
CC
SENSE
+
GATE
+
FB
+
ON
+
FAULT
PWRGD
GND
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