NCP3066MN データシートの表示（PDF） - ON Semiconductor
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コンポーネント説明
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NCP3066MN
ON Semiconductor
NCP3066MN Datasheet PDF : 20 Pages
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NCP3066, NCV3066
Switch Collector
Switch Emitter
Timing Capacitor
GND
SOIC−8/PDIP−8
1
8
2
7
3
6
4
5
(Top View)
ON/OFF
Ipk Sense
VCC
Comparator
Inverting
Input
Figure 2. Pin Connections
DFN8
Switch Collector
ÇÇ Switch Emitter
ÇÇ Timing Capacitor
ÇÇÇÇ GND
EP Flag
ON/OFF
ÇIpk Sense
ÇVCC
ÇÇComparator
Inverting
(Top View)
Input
NOTE: EP Flag must be tied to GND Pin 4 on PCB
Figure 3. Pin Connections
8
ON/OFF
7
Ipk Sense
6
VCC
5
Comparator Inverting Input
ON/OFF
Bias
R
Q
S
Comparator
−
+
S
Q
R
0.2 V
TSD
Oscillator
Comparator
+
−
0.235V
Reference
Regulator
Figure 4. Block Diagram
1
Switch Collector
2
Switch Emitter
CT 3
Timing Capacitor
4
GND
PIN DESCRIPTION
Pin No.
PDIP8
DFN8
1
1
2
2
3
3
4
4, EP Flag
5
5
6
6
7
7
8
8
Pin Name
Switch Collector
Switch Emitter
Timing Capacitor
GND
Comparator Inverting Input
VCC
Ipk Sense
ON/OFF
Description
Internal Darlington switch collector.
Internal Darlington switch emitter.
Timing Capacitor to control the switching frequency.
Ground pin for all internal circuits.
Inverting input pin of internal comparator.
Voltage Supply
Peak Current Sense Input to monitor the voltage drop across an external
resistor to limit the peak current through the circuit.
ON/OFF Pin. To disable the device, this input should be pulled below
0.8 V. If the pin is left floating, it will be disabled.
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