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UC2844BD1R2 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
View to exact match
UC2844BD1R2
ON-Semiconductor
ON Semiconductor ON-Semiconductor
UC2844BD1R2 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
UC3844B, UC3845B, UC2844B, UC2845B
VCC
Vin
VCC 7(12)
36V
Vref
Reference
Regulator
8(14)
RT
2.5V
R Internal
Bias
VCC
UVLO
+
(See
Text)
VC
R
3.6V
+
Vref
7(11)
UVLO
Output
Q1
Oscillator
CT 4(7)
+ 1.0mA
6(10)
Voltage
Feedback
Input 2(3)
Output/
Compensation 1(1)
Error
Amplifier
2R
R 1.0V
S
Q
R
PWM
Latch
Current Sense
Comparator
Power Ground
5(8)
Current Sense Input
3(5)
RS
GND 5(9)
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.
= Sink Only Positive True Logic
Figure 16. Representative Block Diagram
Capacitor CT
Latch Set"
Input
Output/
Compensation
Current Sense
Input
Latch Reset"
Input
Output
Large RT/Small CT
Figure 17. Timing Diagram
Small RT/Large CT
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