Datasheet

NCP3065, NCV3065
http://onsemi.com
2
Figure 2. Pin Connections
Timing Capacitor
Comparator
Inverting
Input
V
CC
N.C.
I
pk
Sense
GND
Switch Emitter
Switch Collector
(Top View)
4
3
2
1
5
6
7
8
Comparator
Inverting
Input
V
CC
N.C.
I
pk
Sense
Timing Capacitor
GND
Switch Emitter
Switch Collector
(Top View)
Figure 3. Pin Connections
EP Flag
Figure 4. Block Diagram
REFERENCE
COMPARATOR
5
R
S
Q
SET dominant
+
−
7
COMPARATOR
CT
3
0.235 V
8
NCP3065
REGULATOR
TSD
0.2 V
+
−
2
6
R
S
Q
4
1
OSCILLATOR
Switch Collector
Switch Emitter
Timing Capacitor
GND
Comparator Inverting Input
+V
CC
I
pk
Sense
N.C.
SET dominant
PIN DESCRIPTION
Pin No. Pin Name Description
1 Switch Collector Internal Darlington switch collector
2 Switch Emitter Internal Darlington switch emitter
3 Timing Capacitor Timing Capacitor Oscillator Input, Timing Capacitor
4 GND Ground pin for all internal circuits
5 Comparator
Inverting Input
Inverting input pin of internal comparator
6 V
CC
Voltage supply
7 I
pk
Sense Peak Current Sense Input to monitor the voltage drop across an external resistor to limit the peak
current through the circuit
8 N.C. Pin not connected