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UC2844BVDG View Datasheet(PDF) - ON Semiconductor

Part Name
Description
View to exact match
UC2844BVDG
ON-Semiconductor
ON Semiconductor ON-Semiconductor
UC2844BVDG Datasheet PDF : 19 Pages
First Prev 11 12 13 14 15 16 17 18 19
UC3844B, UC3845B, UC2844B, UC2845B
VCC
Vin
7(12)
5.0V Ref
+
-
+
-
T
S
Q
R
Comp/Latch
7(11)
Q1
6(10)
5(8)
3(5)
R
C
RS
The addition of the RC filter will eliminate
instability caused by the leading edge spike
on the current waveform.
Figure 24. Current Waveform Spike Suppression
VCC
Vin
7(12)
5.0V Ref
+
-
+
-
7(11)
Rg
Q1
T
S
Q
R
Comp/Latch
6(10)
5(8)
3(5)
RS
Series gate resistor Rg will damp any high frequency
parasitic oscillations caused by the MOSFET input
capacitance and any series wiring inductance in the
gate-source circuit.
Figure 25. MOSFET Parasitic Oscillations
IB
+
0
-
Vin
Base Charge
Removal
C1
Q1
6(10)
5(8)
3(5)
RS
The totem pole output can furnish negative base current
for enhanced transistor turn-off, with the addition of
capacitor C1.
Figure 26. Bipolar Transistor Drive
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