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參數(shù)資料
| 型號： | UC1914 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 5V to 35V Hot Swap Power Manager |
| 中文描述： | 5V至35V的熱插拔電源管理器 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大?。?/td> | 652K |
| 代理商： | UC1914 |
13
UC1914
UC2914
UC3914
PUMP
PUMP UPPER LEVEL
PUMP LOWER LEVEL
"PUMP"
SERVICING FREQUENCY
OSCILLATOR FREQUENCY
T
ON
T
OFF
OSC
OSCB
TIME
Figure 9. Charge pump waveforms.
UDG-98144
Since the charge pump does not always require servic-
ing, the user may think that the charge pump frequency
is much less than the datasheet specification. This is not
the case as the free-running frequency is guaranteed to
be within the datasheet limits. The charge pump servic-
ing frequency can make it appear as though the drivers
are operating at a much lower frequency.
APPLICATION INFORMATION (cont.)
Figure 8. Low voltage operation to produce higher
pump voltage.
UDG-97059
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