参数资料
型号: TPS2390DGKR
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装: GREEN, PLASTIC, MSOP-8
文件页数: 20/20页
文件大小: 497K
代理商: TPS2390DGKR
TPS2390
TPS2391
SLUS471D JUNE 2002 REVISED JANUARY 2008
9
www.ti.com
TYPICAL CHARACTERISTICS
Figure 13
40
15
10
35
60
85
10.5
10.3
10.1
9.9
9.7
9.5
IRAMP OUTPUT CURRENT
vs
AMBIENT TEMPERATURE, NORMAL RATE
I SRC2
IRAMP
Output
Current
A
Average for VO(IRAMP) = 1 V, 3 V
VRTN = 36 V to 80 V
TA Ambient Temperature °C
Figure 14
TIMER CHARGING CURRENT
vs
AMBIENT TEMPERATURE
40
15
10
35
60
85
55
53
51
49
47
45
I CHG
Charging
Current
A
VI(ISENS) =80mV
VO(FLTTIME) =2V
TA Ambient Temperature °C
VRTN = 48 V
VRTN = 36 V
VRTN = 80 V
Figure 15
40
15
10
35
60
85
0.26
0.29
0.32
0.35
0.38
0.41
0.44
0.47
0.50
FLTTIME DISCHARGE CURRENT
vs
AMBIENT TEMPERATURE (TPS2391)
I DSG
Discharge
Current
A
VI(ISENS) = 80 mV
VO(FLTTIME) = 2 V
VRTN = 36 V to 80 V
TA Ambient Temperature °C
Figure 16
FAULT LATCH THRESHOLD
vs
AMBIENT TEMPERATURE
40
15
10
35
60
85
3.75
3.88
4.00
4.13
4.25
V
FL
T
Threshold
V
o
ltage
V
VRTN = 48 V
TA Ambient Temperature °C
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