ka3038 Fairchild Semiconductor, ka3038 Datasheet - Page 11
ka3038
Manufacturer Part Number
ka3038
Description
4-channel Motor Drive Ic
Manufacturer
Fairchild Semiconductor
Datasheet
1.KA3038.pdf
(16 pages)
- Current page: 11 of 16
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5. Switching Regulated Power Supply Drive
• This circuit detects a maximum output value of 4CH drivers and then generates PWM Signal.
• External Component is PNP-Tr, Coil, Schottky Diodeand Capacitor .
6. DC/DC Converter Control Circuit
• Booster circuit needs External component. and the voltage() is defined as follows.
SVCC1
Figure 1. Switching Regulated Power Supply
=
1.267
Figure 2. Output Voltage
--------------------- -
R1
-------------------------------------------------- -
R1 R3
+
R3
--------------------- -
R2
R2 R4
+
+
--------------------- -
R2
R4
R2 R4
+
R4
R1
R2
R3
R4
=
=
=
=
Resistor1
Resistor2
30K
30.5K
FAN8038B(KA3038)
11
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