参数资料
型号: UC2842P
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8
封装: PLASTIC, DIP-8
文件页数: 22/25页
文件大小: 745K
代理商: UC2842P
www.ti.com
OSCILLATOR SECTION
8
4
5
VREF
RT/CT
GROUND
RT
CT
For RT> 5 K f ~
1.72
RTCT
30
10
3
1
0.3
t d
m
s
1
2.2
4.7
10
22
47
100
CT nF
Deadtime vs CT (RT >5 kW)
R
T
(k
)
W
100
30
10
3
100
1 k
10 k
100 k
1 M
f Frequency Hz
Timing Resistance vs Frequency
OUTPUT SATURATION CHARACTERISTICS
4
3
2
1
0
.01
.02
.03 .04 .05
.07 .1
.2
.3 .4 .5
.7
1
SINK SAT (VOL)
SOURCE SAT
(VCC VOH)
VCC = 15 V
TA = 25°C
TA = 55°C
Output Current, Source or Sink A
Saturation
V
oltage
V
ERROR AMPLIFIER OPEN-LOOP FREQUENCY RESPONSE
80
60
40
20
0
45
90
135
180
V
oltage
Gain
dB
Phase
Margin
°
Av
θ
10
100
1 k
10 k
100 k
1 M
10 M
f Frequency Hz
SLUS223C – APRIL 1997 – REVISED JUNE 2007
6
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