SM600 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
SM600 Datasheet PDF : 4 Pages
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SM600/SM601/SM602/SM610/SM611/SM612
ELECTRICAL CHARACTERISTICS (continued)
Parameter
Test Conditions
Dynamic Characteristics (See Figures 1 & 2) (Notes 4 & 5)
Current Delay Time
Current Rise Time
Voltage Rise Time
Voltage Storage Time
Voltage Fall Time
Current Fall Time
Efficiency (Note 5)
SG600/601/602 SG610/611/612 Units
Min. Typ. Max. Min. Typ. Max.
20 40
50 75
30 50
450
50 75
70 150
85
20 40 ns
50 75 ns
30 50 ns
450
ns
50 75 ns
70 150 ns
85
%
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
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 (tDV) ≅ tdi + tri and Current Storage Time (tsi) ≅ tsv + tfv .
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 = -25V, V = -5V, I = +20mA).
IN
OUT
DRIVE
APPLICATION CIRCUITS
SM60X
SM60X
FIGURE 3 - STEP DOWN (BUCK) CONVERTER
4/90 Rev 1.1 2/94
Copyright © 1994
FIGURE 4 - NEGATIVE OUTPUT DOWN/UP (BUCK-BOOST) CONVERTER
LINFINITY Microelectronics Inc.
3
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
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