MPIC2151D Просмотр технического описания (PDF) - Motorola => Freescale
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MPIC2151D Datasheet PDF : 6 Pages
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MPIC2151
TYPICAL CONNECTION
10 TO 600 V
VCC
VB
RT
HO
CT
VS
COM
LO
TO
LOAD
LEAD DEFINITIONS
Symbol
Lead Description
RT
Oscillator timing resistor input; a resistor is connected from RT to CT. RT is in phase with LO for normal IC operation.
CT
+ ) W Oscillator timing capacitor input; a capacitor is connected from CT to COM in order to program the oscillator frequency
according to the following equation:
f
1
1.4 (RT 75 ) CT
where 75Ω is the effective impedance of the RT output stage.
VB
High Side Floating Supply
HO
High Side Gate Drive Output
VS
VCC
LO
High Side Floating Supply Return
Logic and Low Side Fixed Supply
Low Side Gate Drive Output
COM
Logic and Low Side Return
VCCUV+
VCC
RT
CT
HO
VCLAMP
LO
Figure 1. Input / Output Timing Diagram
RT(HO)
RT(LO)
LO
HO
50%
50%
tr
90%
tf
90%
10%
10%
Figure 2. Switching Time Waveform Definitions
RT
50%
50%
90%
HO
10%
DT
LO
90%
10%
Figure 3. Deadtime Waveform Definitions
4
Motorola Power Products Division Advanced Data
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