参数资料
型号: LTC1643HCGN#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 电源管理
英文描述: 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封装: 0.150 INCH, PLASTIC, SSOP-16
文件页数: 11/16页
文件大小: 278K
代理商: LTC1643HCGN#PBF
4
LTC1643L/LTC1643L-1/LTC1643H
TYPICAL PERFORMANCE CHARACTERISTICS
UW
TEMPERATURE (
°C)
–50
TIMER
CURRENT
(
A)
100
1643 G04
050
23.5
23.0
22.5
22.0
21.5
21.0
20.5
20.0
19.5
–25
25
75
125
Timer Current vs Temperature
TEMPERATURE (
°C)
–50
GATE
I
SINK
(mA)
25.0
22.5
20.0
17.5
15.0
12.5
10.0
25
75
1643 G05
–25
0
50
100
125
FAULT = LOW
Gate ISINK vs Temperature
TEMPERATURE (
°C)
–50
GATE
CURRENT
(
A)
90
80
70
60
50
40
0
50
75
1643 G06
–25
25
100
125
Gate Current vs Temperature
Power Good Threshold Voltage vs
Temperature (12VOUT)
TEMPERATURE (
°C)
–50
POWER
GOOD
THRESHOLD
VOLTAGE
(V)
11.08
11.06
11.04
11.02
11.00
10.98
0
50
75
1643 G07
–25
25
100
125
Power Good Threshold Voltage vs
Temperature (5VOUT)
TEMPERATURE (
°C)
–50
POWER
GOOD
THRESHOLD
VOLTAGE
(V)
4.64
4.63
4.62
4.61
4.60
4.59
4.58
25
75
1643 G08
–25
0
50
100
125
TEMPERATURE (
°C)
–50
POWER
GOOD
THRESHOLD
VOLTAGE
(V)
100
1643 G09
050
2.904
2.903
2.902
2.901
2.900
2.899
2.898
2.897
2.896
–25
25
75
125
Power Good Threshold Voltage vs
Temperature (3VOUT)
Power Good Threshold Voltage
vs Temperature (VEEOUT)
TEMPERATURE (
°C)
–50
POWER
GOOD
THRESHOLD
VOLTAGE
(V)
100
1643 G10
050
–10.50
–10.48
–10.46
–10.44
–10.42
–10.40
–10.38
–10.36
–10.34
–25
25
75
125
12V Internal Switch Voltage Drop
vs Temperature
TEMPERATURE (
°C)
325
300
275
250
225
200
175
150
LT1643 G11
INTERNAL
SWITCH
VOLTAGE
DROP
(mV)
–50
25
75
–25
0
50
100
125
I12VOUT = 500mA
VEE Internal Switch Voltage Drop
vs Temperature
TEMPERATURE (
°C)
–50
INTERNAL
SWITCH
VOLTAGE
DROP
(mV)
180
160
140
120
100
80
60
25
75
1643 G12
–25
0
50
100
125
IVEEIN = 100mA
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LTC1643LCGN#TR 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
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