NCV3843BV ON Semiconductor, NCV3843BV Datasheet - Page 10

• Manufacturer Part Number: NCV3843BV
• Description: High Performance Current Mode Controllers
• Manufacturer: ON Semiconductor

Capacitor C
Latch
Output/
Compensation
Current Sense
Input
Latch
Output
Set" Input
Reset" Input
T
Compensation
Feedback
Pin numbers adjacent to terminals are for the 8−pin dual−in−line package.
Pin numbers in parenthesis are for the D suffix SOIC−14 package.
Voltage
R
C
Output/
T
T
Input
8(14)
V
4(7)
2(3)
1(1)
ref
UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
2.5V
Amplifier
Large R
Error
R
R
T
Oscillator
/Small C
+ 1.0mA
Figure 18. Representative Block Diagram
Internal
Bias
T
Figure 19. Timing Diagram
2R
GND
R
http://onsemi.com
5(9)
3.6V
1.0V
Current Sense
10
Reference
Comparator
Regulator
−
+
UVLO
V
ref
S
R
UVLO
V
Q
CC
PWM
Latch
V
CC
+
−
7(12)
Text)
(See
36V
Small R
= Sink Only Positive True Logic
V
7(11)
Output
6(10)
Power Ground
5(8)
Current Sense Input
3(5)
C
T
V
/Large C
CC
T
V
in
Q1
R
S