UC2845D ON Semiconductor, UC2845D Datasheet - Page 8
![Other Power Management 52kHz 1A Current PWM](/photos/16/10/161082/soic-14_sml.jpg)
UC2845D
Manufacturer Part Number
UC2845D
Description
Other Power Management 52kHz 1A Current PWM
Manufacturer
ON Semiconductor
Type
High Performance Current Mode Controllersr
Datasheet
1.UC2845DR2.pdf
(16 pages)
Specifications of UC2845D
Output Voltage Range
4.95 V to 5.05 V
Input Voltage Range
30 V
Operating Temperature Range
- 25 C to + 85 C
Mounting Style
SMD/SMT
Package / Case
SOIC-14
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UC2845D
Manufacturer:
MOTOROLA
Quantity:
15
Part Number:
UC2845D
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
UC2845D8
Manufacturer:
UC/TI
Quantity:
20 000
Part Number:
UC2845DR
Manufacturer:
UC/TI
Quantity:
20 000
Part Number:
UC2845DR2G
Manufacturer:
ON/安森美
Quantity:
20 000
Company:
Part Number:
UC2845DTR
Manufacturer:
ROCKWELL
Quantity:
6 218
Current Sense
Compensation
‘‘Reset’’ Input
Voltage Feedback
Input
Capacitor C
Output/
Input
‘‘Set’’ Input
Latch
Output
Compensation
Latch
Output
C
R
T
T
T
V
ref
8(14)
4(7)
2(3)
1(1)
Pin numbers in parenthesis are for the D suffix SOIC−14 package.
2.5V
Amplifier
+
−
Error
Large R
R
R
+
Oscillator
T
1.0mA
/Small C
Internal
Bias
Figure 16. Representative Block Diagram
T
2R
GND
Figure 17. Timing Diagram
R
5(9)
http://onsemi.com
3.6V
1.0V
Current Sense
Comparator
Reference
Regulator
+
−
8
−
+
+
−
UVLO
V
ref
S
R
T
UVLO
V
Q
Q
CC
PWM
Latch
+
−
V
CC
−
+
−
+
=
7(12)
Sink Only
Positive True Logic
36V
Small R
Output
Current Sense Input
V
Power Ground
3(5)
7(11)
6(10)
5(8)
C
T
/Large C
V
CC
T
V
in
Q1
R
S