datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

MC33065-H View Datasheet(PDF) - Motorola => Freescale

Part Name
Description
View to exact match
MC33065-H Datasheet PDF : 14 Pages
First Prev 11 12 13 14
MC34065–H, L MC33065–H, L
Figure 25. Bipolar Transistor Drive
IB
Vin
+
0
Base Charge
Removal
C1
RS
The totem–pole outputs can furnish negative base current for enhanced
transistor turn–off, with the addition of capacitor C1.
Figure 26. Isolated MOSFET Drive
VCC
Vin
16
+
5.0Vref
–+
_
+
+–
Isolation
Boundary
Q1
PWM
Latch 1
7
D1
S
Q
+
R
6
R
ǒ Ǔ + * Ipk
V(Pin 6) 1.4 NP
3RS
NS
C
NS
NP
Figure 27. Dual Charge Pump Converter
VCC = 15V
16
+
47
15
2.5V R
R
1
Bias
20k
3
12k
1.0nF
2
4
5
Osc.
+
EA1
1.0mA
2R
1.0V
+
5.0Vref
–+
_
+
+–
_
+
R
PWM
Latch 1
S
Q
R
250µA
14
1.0mA
+
13
EA2
2R
1.0V
+
R
12
8
PWM
Latch 2
S
RQ
R
9
10
27 10
1N5819
7
10
+
+
47
+VO 2.0 VCC
Connect to Pin 4 for
closed–loop regulation.
R2
R1
6
ǒ Ǔ ) + ) VO
2.5
R2
R1
1
10
27 10
1N5819
+
–VO –VCC
10
10
47 +
Output Load Regulation
11
IO (mA) +VO (V) –VO (V)
0
28.43 –13.89
1.0
27.72 –12.90
5.0
27.04 –12.25
10
26.20 –11.44
50
20.52 –5.80
The capacitor’s equivalent series resistance must limit the Drive Output current to 400 mA. An additional series resistor may be required
when using tantalum or other low ESR capacitors. The positive output can provide excellent line and load regulation by connecting the
R2/R1 resistor divider as shown.
MOTOROLA ANALOG IC DEVICE DATA
11
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]