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BA6125 fiches techniques PDF

ROHM Semiconductor - LED level meter driver

Numéro de référence BA6125
Description LED level meter driver
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BA6125 fiche technique
Audio ICs
LED level meter driver, 5-point,
linear scale
BA6125
The BA6125 is a driver IC for LED linear level meters in stereo equipment and other display applications.
The IC displays the input level on five LEDs. The display level range is 35mVrms to 175mVrms in five equally-spaced
35mVrms steps.
The BA6125 includes a rectifier amplifier allowing direct AC input, and has constant-current outputs, so it can directly
drive the LEDs without variations in LED current due to supply voltage fluctuations.
FApplications
Battery checkers, signal meters, and other display de-
vices.
FFeatures
1) Rectifier amplifier allows either AC or DC input.
2) Constant-current outputs for constant LED current
when the supply voltage fluctuates.
3) Built-in reference voltage means that power supply
voltage fluctuations do not effect the display.
FAbsolute maximum ratings (Ta = 25_c)
4) Wide operating power supply voltage range (3.5V to
16V) for a wide range of applications.
5) Low PCB space requirements. Comes in a compact
9-pin SIP package and requires few external compo-
nents.
624

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