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LM391 データシート(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM391
部品情報  LM391 Audio Power Driver
PDF  12 Pages
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM391 データシート(HTML) 3 Page - National Semiconductor (TI)

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Typical Performance Characteristics
Output Power vs Supply Voltage
Frequency (RL e 8X)
Total Harmonic Distortion vs
Frequency (RL e 4X)
Total Harmonic Distortion vs
Open Loop Gain vs Frequency
Rejection vs Frequency
Input Referred Power Supply
AB Bias Current
Total Harmonic Distortion vs
TLH7146 – 4
Pin Descriptions
Pin No
Pin Name
Comments
1
a
Input
Audio input
2
b
Input
Feedback input
3
Compensation
Sets the dominant pole
4
Ripple Filter
Improves negative supply rejection
5
Sink Output
Drives output devices and is emitter of AB bias VBE multiplier
6
BIAS
Base of VBE multiplier
7
BIAS
Collector of VBE multiplier
8
Source Output
Drives output devices
9
Output Sense
Biases the IC and is used in protection circuits
10
a
Current Limit
Base of positive side protection circuit transistor
11
a
SOA Diode
Diode used for dual slope SOA protection
12
b
SOA Diode
Diode used for dual slope SOA protection
13
b
Current Limit
Base of negative side protection circuit transistor
14
Shutdown
Shuts off amplifier when current is pulled out of pin
15
Va
Positive supply
16
Vb
Negative supply
3



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