UC3843D8 UNITRODE, UC3843D8 Datasheet - Page 6
UC3843D8
Manufacturer Part Number
UC3843D8
Description
PWM CONTROLLER, SMD, 3843, SOIC8
Manufacturer
UNITRODE
Datasheet
1.UC3843D8.pdf
(26 pages)
Specifications of UC3843D8
Input Voltage
15V
Output Voltage
5V
Output Current
200mA
Frequency
500kHz
Power Dissipation Pd
650mW
Supply Voltage Range
12V To 25V
Digital Ic Case Style
SOIC
No. Of Pins
8
Operating
RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
UC3843D8
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
UC3843D8TR
Manufacturer:
MIT
Quantity:
149
Part Number:
UC3843D8TR
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
UC3843D8TRG4
Manufacturer:
ON
Quantity:
13 545
UC1842/3/4/5
UC2842/3/4/5
UC3842/3/4/5
SLUS223C – APRIL 1997 – REVISED JUNE 2007
6
OSCILLATOR SECTION
OUTPUT SATURATION CHARACTERISTICS
ERROR AMPLIFIER OPEN-LOOP FREQUENCY RESPONSE
For R
GROUND
R
V
T
T
REF
> 5 K f ~
/C
T
8
4
5
R
1.72
T
C
T
R
C
T
T
80
60
40
20
0
10
0.3
4
3
2
1
0
30
10
.01
3
1
1
V
Deadtime vs C
100
CC
.02
Submit Documentation Feedback
2.2
= 15 V
.03 .04 .05
4.7
Output Current, Source or Sink − A
1 k
f − Frequency − Hz
C
T
10
− nF
T
(R
10 k
.07 .1
T
22
Av
>5 kW)
T
A
= −55 C
47
100 k
SINK SAT (V
T
A
= 25 C
.2
100
SOURCE SAT
(V
.3 .4 .5
1 M
CC −
OL
)
V
OH)
100
30
10
10 M
.7
3
100
0
−45
−90
−135
−180
Timing Resistance vs Frequency
1
f − Frequency − Hz
1 k
10 k
100 k
www.ti.com
1 M