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參數(shù)資料
| 型號： | SM612 |
| 廠商： | Microsemi Corporation |
| 元件分類： | 基準電壓源/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安培開關穩(wěn)壓器 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 66K |
| 代理商： | SM612 |
SM600/SM601/SM602/SM610/SM611/SM612
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)
40
75
50
75
150
20
50
30
450
50
70
85
20
50
30
450
50
70
85
FIGURE 4 - NEGATIVE OUTPUT DOWN/UP (BUCK-BOOST) CONVERTER
FIGURE 3 - STEP DOWN (BUCK) CONVERTER
Test Conditions
Parameter
Units
SG610/611/612
Min.
Typ. Max.
SG600/601/602
Min.
Typ. Max.
ELECTRICAL CHARACTERISTICS
(continued)
SM60X
SM60X
APPLICATION CIRCUITS
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.
Note 6. SM610/611/612 Test Circuit and waveforms are identical but of opposite polarity (V
IN
= -25V, V
OUT
= -5V, I
DRIVE
= +20mA).
Dynamic Characteristics
(See Figures 1 & 2)
(Notes 4 & 5)
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS
(Note 6)
SM600
SM601
SM602
FIGURE 1 - SM600/601/602 SWITCHING SPEED CIRCUIT
FIGURE 2 - SM600/601/602 SWITCHING WAVEFORMS
40
75
50
75
150
ns
ns
ns
ns
ns
ns
%
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