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: 17/20页
文件大小: 497K
代理商: TPS2390DGKR
TPS2390
TPS2391
SLUS471D JUNE 2002 REVISED JANUARY 2008
6
www.ti.com
TYPICAL CHARACTERISTICS
Figure 1
LIVE INSERTION EVENT
VIN = 48 V
Power Applied
CIRAMP = 3900 pF
CFLT = 0.1 F
CLOAD = 50 F
EN (20 V/div.)
VDRAIN (20 V/div.)
ILOAD
(500 mA/div.)
t TIme 1 ms/div
Figure 2
LIVE INSERTION EVENT
VIN = 80 V
ILOAD (500 mA/div.)
VDRAIN (50 V/div.)
EN (20 V/div.)
Power Applied
CLOAD = 100 F
t TIme 1 ms/div
Figure 3
START-UP FROM ENABLE ASSERTION
ILOAD (1 A/div.)
VDRAIN 50 V/div.
EN (5 V/div.)
IRAMP (5 V/div.)
CLOAD = 100 F
EN driven from logic-
level signal, ref to VIN
t TIme 1 ms/div
Figure 4
LOAD CURRENT RAMP PROFILES
CFLT = 0.33 F
CLOAD = 600 F
IRAMP (2 V/div.)
CIRAMP =
3900 pF
CIRAMP = .047 F
ILOAD
(500 mA/div.)
CIRAMP = .022F
t TIme 10 ms/div
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