- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374598 > RM4391D (RAYTHEON SEMICONDUCTOR) Inverting and Step-Down Switching Regulator PDF資料下載
參數(shù)資料
| 型號(hào)： | RM4391D |
| 廠商： | RAYTHEON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Inverting and Step-Down Switching Regulator |
| 中文描述： | 0.375 A SWITCHING REGULATOR, CDIP8 |
| 文件頁(yè)數(shù)： | 15/22頁(yè) |
| 文件大小： | 153K |
| 代理商： | RM4391D |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)當(dāng)前第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)
RC4391
PRODUCT SPECIFICATION
15
I
LX
-I
MAX
Time
I
LX
-I
MAX
Time
I
LX
-I
MAX
Time
Troubleshooting Chart
Symptom
Possible Problems
Draws excessive supply current on star-up.
Inductance value too low.
Output frequency (F
O
) too low.
Combination of low resistance inductor and high
value filter capacitor — needs current limiting circuit
(Figure 13).
Inductance value too high for F
O
or core saturating.
Not potted well or bolted loosely.
Normal operating condition.
Inductor is saturating:
1. Core too small.
2. Core too hot.
3. Operating frequency too low.
Output voltage is low.
Inductor "sings" with audible hum.
L
X
pin appears noisy — scope will not synchronize.
Inductor current shows nonlinear waveform.
Waveform has resistive component:
1. Wire size too small.
2. Power transistor lacks base drive.
3. Components not rated high enough.
4. Battery has high series resistance.
Inductor current shows nonlinear waveform.
External transistor lacks base drive or beta is too
low.
Inductor current is linear until high current is reached.
Poor efficiency.
Core saturating.
Diode or transistor:
1. Not fast enough.
2. Not rated for current level (high V
CE
SAT).
High series resistance.
Operating frequency too high.
Loop stability problem — needs feedback from
V
OUT
to V
FB
(pin 8), 100pF to 1000pF
Motorboating (erratic current pulses).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RM500DZ-24 | HIGH POWER GENERAL USE INSULATED TYPE |
| RM500DZ-2H | HIGH POWER GENERAL USE INSULATED TYPE |
| RM500DZ-H | HIGH POWER GENERAL USE INSULATED TYPE |
| RM500UZ-24 | BATTERY SEALED LEAD ACID 12V 5AH |
| RM500UZ-2H | BATTERY SEALED LEAD ACID 12V 7AH |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RM4-3C90 | 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:RM, RM/I, RM/ILP cores and accessories |
| RM4-3D3 | 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:RM, RM/I, RM/ILP cores and |
| RM4-3D3-A63 | 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:RM, RM/I, RM/ILP cores and |
| RM4-3D3-E40 | 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:RM, RM/I, RM/ILP cores and |
| RM4-3H3 | 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:RM, RM/I, RM/ILP cores and |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。