參數(shù)資料
型號(hào)： CM6824IS
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
中文描述： 低啟動(dòng)電流式PFC / PWM控制器組合
文件頁(yè)數(shù)： 5/18頁(yè)
文件大?。?/td> 342K
代理商： CM6824IS
CM6824
L
OW
S
TART-
U
P
C
URRENT
PFC/PWM C
ONTROLLER
C
OMBO
ELECTRICAL CHARACTERISTICS
(Conti.)
Unless otherwise stated, these specifications apply
Vcc=+15V, R
T
= 52.3k
, C
T
= 470pF, T
A
=Operating Temperature Range (Note 1)
2002/09/20
Preliminary
Rev. 1.1
Champion Microelectronic Corporation
Page 5
CM6824
Typ.
Symbol
Parameter
Test Conditions
Min.
Max.
Unit
Sink Current
Source Current
Open Loop Gain
Power Supply Rejection Ratio
I
SENSE
= +0.5V, IEAO = 4.0V
I
SENSE
= -0.5V, IEAO = 1.5V
11V < V
CC
< 16.5V
PFC OVP Comparator
-65
75
70
75
-35
μA
μA
dB
dB
35
60
60
Threshold Voltage
Hysteresis
2.70
230
2.77
2.85
290
V
mV
Low Power Detect Comparator
Threshold Voltage
0.4
0.5
0.6
V
VCC OVP Comparator
Threshold Voltage
Hysteresis
19
1.40
19.4
1.5
20
1.65
V
V
PFC I
LIMIT
Comparator
Threshold Voltage
(PFC I
LIMIT
V
TH
– Gain Modulator
Output)
Delay to Output (Note 4)
-1.10
-1.00
-0.90
V
80
200
mV
Overdrive Voltage = -100mV
DC I
LIMIT
Comparator
250
ns
Threshold Voltage
Delay to Output (Note 4)
0.95
1.0
250
1.05
V
ns
Overdrive Voltage = 100mV
V
IN
OK Comparator
Threshold Voltage
Hysteresis
2.35
0.8
2.45
1.0
2.55
1.2
V
V
GAIN Modulator
I
AC
= 100μA, V
RMS
= V
FB
= 0V
I
AC
= 100μA, V
RMS
= 1.1V, V
FB
= 0V
I
AC
= 150μA, V
RMS
= 1.8V, V
FB
= 0V
I
AC
= 300μA, V
RMS
= 3.3V, V
FB
= 0V
I
AC
= 100μA
0.36
1.20
0.55
0.14
0.55
1.80
0.80
0.20
10
0.66
2.24
1.01
0.26
Gain (Note 3)
Bandwidth
Output Voltage =
3.5K*(I
SENSE
-I
OFFSET
)
MHz
I
AC
= 250μA, V
RMS
= 1.1V, V
FB
= 0V
0.70
0.80
0.90
V
Oscillator
T
A
= 25
℃
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time (Note 4)
CT Discharge Current
66
68
500
6.5
75.5
84
700
10.5
kHz
%
%
kHz
V
ns
mA
11V < V
CC
< 16.5V
Line, Temp
V
RAMP2
= 0V, V
RAMP1
= 2.5V
1
2
2.5
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