- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379913 > CM3842CP (Electronic Theatre Controls, Inc.) CURRENT MODE PWM CONTROLLER PDF資料下載
參數(shù)資料
| 型號： | CM3842CP |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | CURRENT MODE PWM CONTROLLER |
| 中文描述： | 電流模式PWM控制器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 638K |
| 代理商： | CM3842CP |
CM3842/3843
C
URRENT
M
ODE
PWM C
ONTROLLER
2001/06/27
Advanced
Champion Microelectronic Corporation
Page 6
APPLICATION INFORMATION
Fig. 1. Current Sense Circuit
Peak current (I
S
) is set by: I
S(MAX)
= 1V/R
S
Fig. 3. Oscillator Section
1.72
Fig. 2. Error Amplifier Configuration -
the
amplifier can source or sink up to 0.5mA
For R
T
< 5K, f = R
T
C
T
Fig. 4. Open-loop laboratory test fixture:
Careful grounding techniques are necessary for high peak
currents associated with capacitive loads. Timing and bypass capacitors should be connected to
GND pin in a single point ground. The transistor and 5K potentiometer are used to sample the
oscillator waveform and apply an adjustable ramp to the I
SENSE
pin
GND
I
SENSE
COMP
Error
Amp
R
S
R
f
C
f
R
2R
1V
Current
Sense
Comparator
4.7K
1K
Error AMP
Adjust
4.7K
2N2222
100K
5K
I
Adjust
COMP
V
FB
I
SENSE
R
T
/C
T
GND
V
RE
F
V
CC
Output
0.1
μ
F
Output
1K,
1W
V
CC
V
REF
0.1
μ
F
GND
C
T
R
T
2.5V
Z
f
Z
i
0.5mA
V
FB
COMP
Error
Amp
GND
R
T
/C
T
V
REF
C
T
R
T
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CM3842CS | CURRENT MODE PWM CONTROLLER |
| CM3843 | CURRENT MODE PWM CONTROLLER |
| CM3843CP | CURRENT MODE PWM CONTROLLER |
| CM3843CS | CURRENT MODE PWM CONTROLLER |
| CM400DU-12F | HIGH POWER SWITCHING USE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CM3842CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CURRENT MODE PWM CONTROLLER |
| CM3843 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CURRENT MODE PWM CONTROLLER |
| CM3843CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CURRENT MODE PWM CONTROLLER |
| CM3843CS | 制造商:CHAMP 功能描述: |
| CM385 | 制造商:chicago mini 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。