参数资料
型号: LTC1645IS8#PBF
厂商: Linear Technology
文件页数: 2/24页
文件大小: 329K
描述: IC CTLR HOT SWAP SEQ DUAL 8-SOIC
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: 1.2 V ~ 12 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
2
LTC1645
1645fa
Supply Voltage (V
CC1
, V
CC2
) ................................. 13.2V
Input Voltage
FB, ON, COMP
+
..................... 0.3V to (V
CC1
 + 0.3V)
TIMER ................................................. 0.3V to 2.5V
SENSE1 ..................... (V
CC1
  0.7V) to (V
CC1
 + 0.3V)
SENSE2 ...................... (V
CC1
  0.7V) to (V
CC2
 + 0.3V)
Output Voltage
RESET, COMPOUT, FAULT .....................0.3V to 16V
GATE1, GATE2................. Internally Limited (Note 3)
Output Current
GATE1, GATE2............................................... ?0mA
Operating Temperature Range
LTC1645C ............................................... 0癈 to 70癈
LTC1645I............................................ 40癈 to 85癈
Storage Temperature Range ................. 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)..................300癈
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
I
CC1
V
CC1
 Supply Current
ON = V
CC1
 = 5V, V
CC2
 = 3.3V
q
1.1
2.0
mA
I
CC2
V
CC2
 Supply Current
ON = V
CC1
 = 5V, V
CC2
 = 3.3V
q
0.28
0.4
mA
V
LKO1
V
CC1
 Undervoltage Lockout
High to Low
q
2.16
2.23
2.3
V
V
LKO2
V
CC2
 Undervoltage Lockout
High to Low
q
1.06
1.12
1.18
V
V
LKHn
V
CCn
Undervoltage Lockout Hysteresis
25
mV
V
FB
FB Pin Voltage Threshold
High to Low
q
1.226
1.238
1.250
V
V
FB
FB Pin Threshold Line Regulation
High to Low, V
CC1
 = 2.375V to 12V
q
1
4
mV
V
FBHST
FB Pin Voltage Threshold Hysteresis
5
mV
V
COMP
COMP
+
 Pin Voltage Threshold
High to Low
q
1.226
1.238
1.250
V
V
COMP
COMP
+
 Pin Threshold Line Regulation
High to Low, V
CC1
 = 2.375V to 12V
q
1
4
mV
V
COMPHST
COMP
+
 Pin Voltage Threshold Hysteresis
5
mV
(Note 1)
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
 = 25?/SPAN>C.
2.375V d V
CC1
 d 12V, 1.2V d V
CC2
  d 12V unless otherwise noted (Note 2).
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC2
SENSE2
GATE2
FAULT
RESET
FB
GND
V
CC1
SENSE1
GATE1
TIMER
ON
COMPOUT
COMP
+
T
JMAX
 = 125癈, ?/DIV>
JA
 = 110癈/W
TOP VIEW
V
CC1
SENSE1
GATE1
ON
V
CC2
SENSE2
GATE2
GND
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
T
JMAX
 = 125癈, ?/DIV>
JA
 = 150癈/W
ORDER PART
NUMBER
S8 PART MARKING
1645
1645I
LTC1645CS8
LTC1645IS8
ORDER PART
NUMBER
LTC1645CS
LTC1645IS
ABSOLUTE AXI U RATI GS
W
W
U
PACKAGE/ORDER I FOR ATIO
U
W
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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