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參數(shù)資料
| 型號(hào)： | SM627R |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大?。?/td> | 56K |
| 代理商： | SM627R |
SM625/SM626/SM627
4/90 Rev 1.1 2/94
Copyright
1994
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
3
Current Delay Time
Current Rise Time
Voltage Rise Time
Voltage Storage Time
Voltage Fall Time
Current Fall Time
Efficiency
(Note 5)
Test Conditions
Parameter
Units
ELECTRICAL SPECIFICATIONS
(continued)
Note 4. In switching an inductive load, the current will lead the voltage on turn-on and lag the voltage on turn-off (see Figure 2). Therefore, Voltage
Delay Time (t
)
t
+ t
and Current Storage Time (t
)
t
+ t
.
Note 5. The efficiency is a measure of internal power losses and is equal to Output Power divided by Input Power. The switching speed circuit of Figure
1, in which the efficiency measured, is represenative of typical operating conditions for the SM600 series switching regulators.
Dynamic Characteristics
(See Figures 1 & 2)
(Notes 4 & 5)
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS
(Note 6)
FIGURE 1 - SM625/626/627 SWITCHING SPEED CIRCUIT
FIGURE 2 - SM625/626/627 SWITCHING WAVEFORMS
SM625
SM626
SM627
ns
ns
ns
ns
ns
ns
%
60
150
60
175
300
35
65
40
700
70
175
85
SG625/626/627
Min.
Typ. Max.
FIGURE 4 - NEGATIVE OUTPUT DOWN/UP (BUCK-BOOST) CONVERTER
FIGURE 3 - STEP DOWN (BUCK) CONVERTER
APPLICATION CIRCUITS
SM62X
SM62X
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