MC33151D View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC33151D Datasheet PDF : 10 Pages
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MC34151 MC33151
Figure 22. Controlled MOSFET Drive
Figure 23. Bipolar Transistor Drive
Vin
+
Rg(on)
Rg(off)
IB
+
0
–
+
Vin
Base Charge
Removal
C1
In noise sensitive applications, both conducted and radiated EMI can
be reduced significantly by controlling the MOSFET’s turn–on and
turn–off times.
The totem–pole outputs can furnish negative base current for enhanced
transistor turn–off, with the addition of capacitor C1.
330pF
Figure 24. Dual Charge Pump Converter
VCC = 15 V
4.7 0.1
+
6
+
+–
+
5.7V
+
2
+
6.8 10
7
+
1N5819
+
47
+ VO ≈ 2.0 VCC
+
4
+
6.8 10
5
+
1N5819
47
+
– VO ≈ – VCC
3
10k
The capacitor’s equivalent series resistance limits the Drive Output Current
to 1.5 A. An additional series resistor may be required when using tantalum
or other low ESR capacitors.
8
Output Load Regulation
IO (mA)
0
1.0
10
20
30
50
+VO (V)
27.7
27.4
26.4
25.5
24.6
22.6
–VO (V)
–13.3
–12.9
–11.9
–11.2
–10.5
–9.4
MOTOROLA ANALOG IC DEVICE DATA
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