参数资料
型号: LT1641IS8
厂商: Linear Technology
文件页数: 2/12页
文件大小: 192K
描述: IC CONTRLR HOTSWAP POSVOLT 8SOIC
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: 9 V ~ 80 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
其它名称: Q1140670
2
LT1641
1641fd
Supply Voltage (V
CC
) ...............................0.3V to 100V
Input Voltage (SENSE).............................0.3V to 100V
Input Voltage (TIMER)...............................0.3V to 44V
Input Voltage (FB, ON)...............................0.3V to 60V
Output Voltage (PWRGD) ........................0.3V to 100V
Output Voltage (GATE) ............................0.3V to 100V
Operating Temperature Range
LT1641CS8 .............................................0癈 to 70癈
LT1641IS8.......................................... 40癈 to 85癈
Storage Temperature Range ................. 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)..................300癈
ABSOLUTE   AXI  U   RATI  GS
W
W
U
PACKAGE/ORDER I  FOR  ATIO
U
W
(Note 1)
The ?/SPAN> denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
 = 25?/SPAN>C. V
cc
 = 24V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
V
CC
 Operating Range
?/DIV>
9
80
V
I
CC
V
CC
 Supply Current
ON = 3V
?/DIV>
2
5.5
mA
V
LKO
V
CC
 Undervoltage Lockout
?/DIV>
7.5
8.3
8.8
V
V
FBH
FB Pin High Voltage Threshold
FB Low to High Transition
?SPAN class="pst LT1641IS8-TR_2354225_10">    1.280
1.313
1.345
V
V
FBL
FB Pin Low Voltage Threshold
FB High to Low Transition
?SPAN class="pst LT1641IS8-TR_2354225_10">    1.221
1.233
1.245
V
V
FBHST
FB Pin Hysteresis Voltage
80
mV
I
INFB
FB Pin Input Current
V
FB
 = GND
1
V
FB
FB Pin Threshold Line Regulation
9V d V
CC
 d 80V
?/DIV>
0.05
mV/V
V
SENSETRIP
SENSE Pin Trip Voltage (V
CC
  V
SENSE
)    V
FB
 = 0V
?/DIV>
8
12
17
mV
V
FB
 = 1V
?/DIV>
39
47
55
mV
I
GATEUP
GATE Pin Pull-Up Current
Charge Pump On, V
GATE
 = 7V
?/DIV>
5
10
20
I
GATEDN
GATE Pin Pull-Down Current
Any Fault Condition, V
GATE
 = 2V
?/DIV>
35
70
100
mA
V
GATE
External N-Channel Gate Drive
V
GATE
  V
CC
, V
CC
 = 10.8V to 20V
?/DIV>
4.5
18
V
V
CC
 = 20V to 80V
?/DIV>
10
18
V
I
TIMERUP
TIMER Pin Pull-Up Current
V
TIMER
 = 0V
?/DIV>
24
80
132
I
TIMERON
TIMER Pin Pull-Down Current
V
TIMER
 = 1V
?/DIV>
1.5
3
5
V
ONH
ON Pin High Threshold
ON Low to High Transition
?SPAN class="pst LT1641IS8-TR_2354225_10">    1.280
1.313
1.345
V
V
ONL
ON Pin Low Threshold
ON High to Low Transition
?SPAN class="pst LT1641IS8-TR_2354225_10">    1.221
1.233
1.245
V
V
ONHYST
ON Pin Hysteresis
80
mV
I
INON
ON Pin Input Current
V
ON
 = GND
1
V
OL
PWRGD Output Low Voltage
I
O
 = 2mA
?/DIV>
0.4
V
I
O
 = 4mA
?/DIV>
2.5
V
I
OH
PWRGD Pin Leakage Current
V
PWRGD
 = 80V
?/DIV>
10
DC ELECTRICAL CHARACTERISTICS
T
JMAX
 = 125癈, ?/DIV>
JA
 = 110癈/W
1641
1641I
LT1641CS8
LT1641IS8
1
2
3
4
8
7
6
5
TOP VIEW
V
CC
SENSE
GATE
TIMER
ON
FB
PWRGD
GND
S8 PACKAGE
8-LEAD PLASTIC SO
NOT RECOMMENDED FOR NEW DESIGNS
SEE LT1641-1/LT1641-2
ORDER PART NUMBER
S8 PART MARKING
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options  Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
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