UC3845D ON Semiconductor, UC3845D Datasheet - Page 5
UC3845D
Manufacturer Part Number
UC3845D
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 UC3845D
Output Voltage Range
4.9 V to 5.1 V
Input Voltage Range
30 V
Operating Temperature Range
0 C to + 70 C
Mounting Style
SMD/SMT
Package / Case
SOIC-14
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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−1.0
−2.0
−4.0
−8.0
−12
−16
−20
−24
3.0
2.0
1.0
0
0
0
0
0
Figure 10. Reference Load Regulation
Figure 12. Output Saturation Voltage
Figure 8. Reference Voltage Change
20
V
CC
I
ref
T
T
T
A
, REFERENCE SOURCE CURRENT (mA)
A
A
200
= −55°C
I
= 25°C
O
= 125°C
versus Source Current
, OUTPUT LOAD CURRENT (mA)
versus Load Current
40
Sink Saturation
Source Saturation
(Load to V
(Load to Ground)
2.0 ms/DIV
T
T
A
400
A
60
= −55°C
= 25°C
CC
)
V
I
T
O
A
CC
80
= 1.0 mA to 20 mA
T
= 25°C
A
= 15 V
= −55°C
600
80 ms Pulsed Load
GN
V
120 Hz Rate
D
V
CC
CC
100
T
A
= 15 V
= 15 V
= 25°C
http://onsemi.com
120
800
5
90%
10%
110
90
70
50
−55
Figure 9. Reference Short Circuit Current
Figure 11. Reference Line Regulation
−25
Figure 13. Output Waveform
T
A
0
, AMBIENT TEMPERATURE (°C)
versus Temperature
2.0 ms/DIV
25
50 ns/DIV
50
V
T
A
CC
75
= 25°C
= 12 V to 25 V
V
C
T
V
R
A
CC
L
CC
L
= 25°C
= 1.0 nF
≤ 0.1 W
= 15 V
= 15 V
100
125