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參數資料

656

Audio ICs

LED level meter driver, 12-point,

linear scale, dot or bar display

BA689

The BA689 is a monolithic IC for LED level meter applications. The display level range is 0mV

rms

to 300mV

rms

(typ.) di-

vided into 12 equally-spaced points with 25mV

rms

steps. The constant current outputs can be set using external resistors

to allow use of different color LEDs in various combinations.

Applications

Signal meters, battery checkers,

and air conditioner temperature displays

Features

1) 12-point level meter driver for bar/dot displays.

2) Fixed-current outputs that can directly drive LEDs.

3) Output current can be set using external resistors al-

lowing different types of LEDs to be used in combina-

tion.

4) Built-in half-wave rectifier amplifier.

5) LED on and off timing can be set using an external

capacitor and resistor.

6) With bar-type display, by connecting four LEDs in se-

ries, power dissipation is reduced.

Absolute maximum ratings (Ta = 25 C)

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相關代理商/技術參數	參數描述
BA6890FP	制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel H-bridge-type BTL driver
BA6892	制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel H-bridge type BTL driver for CD players
BA6892FP	制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel H-bridge type BTL driver for CD players
BA6893AK	制造商:ROHM 制造商全稱:Rohm 功能描述:4-channel driver and power controller
BA6893KE2	制造商:Panasonic Industrial Company 功能描述:IC

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