参数资料
型号: LTC4230IGN#PBF
厂商: Linear Technology
文件页数: 2/36页
文件大小: 384K
描述: IC CONTRLLR HOT SWAP TRPL 20SSOP
标准包装: 55
类型: 热交换控制器
应用: 通用
内部开关:
电源电压: 1.7 V ~ 16.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
供应商设备封装: 20-SSOP
包装: 管件
2
LTC4230
 4230f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
Supply Voltage (V
CC1
)
q  2.700
16.5
V
Supply Voltage (V
CC2
)
V
CC2
 d V
CC1
q    2.375
16.5
V
Supply Voltage (V
CC3
)
V
CC3
 d (V
CC1
  1V)
q    1.700
15.5
V
I
CC
Supply Current (I
CC1
)
ON = V
CC1
, FB1 = High
q
1.8
3
mA
Supply Current (I
CC2
)
ON = V
CC1
, FB2 = High
q
75
150
Supply Current (I
CC3
)
ON = V
CC1
, FB3 = High
q
65
150
V
LKO1
Undervoltage Lockout , Channel 1
V
CC1
 Low to High Transition
q
2.15
2.35
2.52
V
V
LKO2
Undervoltage Lockout , Channel 2
V
CC2
 Low to High Transition
q
1.98
2.15
2.32
V
V
LKO3
Undervoltage Lockout , Channel 3
V
CC3
 Low to High Transition
q
1.09
1.19
1.29
V
V
LKOHST1
Undervoltage Lockout Hysteresis, Channel 1
100
mV
V
LKOHST2
Undervoltage Lockout Hysteresis, Channel 2
45
mV
V
LKOHST3
Undervoltage Lockout Hysteresis, Channel 3
35
mV
I
IN, FBn
FBn Pin Input Current
0V d V
FBn
 d V
CCn
q
?.1
?0
I
IN, ON
ON Pin Input Current
0V d V
ON
 d V
CC1
q
?.1
?0
I
IN, SENSEn
Input Current for SENSEn
0V d V
SENSEn
 d V
CCn
q
?.1
?5
V
CB(FAST)
Circuit Breakern Trip Voltage
Fast Comparator
q
135
150
165
mV
V
CB(SLOW)
Slow Comparator
q
40
50
60
mV
I
GATEn, UP
GATEn Pull-Up Current
Charge Pump On, 0 d V
GATEn
 < 0.2V
q    12.5
10
6.5
I
GATEn, DN
Normal GATEn Pull-Down Current
ON Low, V
GATEn
 = 5V
200
Fast GATEn Pull-Down Curent
FAULT Latched and Circuit Breaker
16
mA
Tripped or in UVLO, V
GATEn
 = 5V
I
LEAK
RESETn Leakage Current
V
RESETn
 = 15V, Pull-Down Device Off
q
?.1
?.5
T
JMAX
 = 125癈, ?/DIV>
JA
 = 95癈/W
ORDER PART
NUMBER
Supply Voltage (V
CCn
) ............................................. 17V
SENSEn Pins ............................... 0.3V to (V
CC
 + 0.3V)
FBn, ON Pins ............................... 0.3V to (V
CC
 + 0.3V)
TIMER Pin ...................................................0.3V to 2V
GATEn Pins........................... Internally Limited (Note 3)
RESETn, FAULT, FILTER Pins....................0.3V to 17V
Operating Temperature Range
LTC4230C ...............................................0癈 to 70癈
LTC4230I............................................ 40癈 to 85癈
Storage Temperature Range ................. 65癈 to 150癈
Lead Temperature (Soldering, 10 sec)..................300癈
LTC4230CGN
LTC4230IGN
ABSOLUTE AXI U RATI GS
W
W
U
PACKAGE/ORDER I FOR ATIO
U
W
(Note 1)
The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
 = 25?/SPAN>C. V
CC1
 = 3.3V, V
CC2
 = 2.5V,V
CC3
 = 1.8V unless otherwise noted. (Note 2)
ELECTRICAL CHARACTERISTICS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
1
2
3
4
5
6
7
8
9
10
TOP VIEW
GN PACKAGE
20-LEAD PLASTIC SSOP
20
19
18
17
16
15
14
13
12
11
FB3
RESET 3
GATE 3
SENSE 3
V
CC3
V
CC1
SENSE 1
GATE 1
RESET 1
FB1
FB2
RESET 2
GATE 2
SENSE 2
V
CC2
ON
GND
FAULT
TIMER
FILTER
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