Level led level meter display driver IC a circuit diagram

BA6104 is a five-digit LED level meter that functions as an LED display driver integrated circuit (IC). The configuration of the circuit is illustrated in the accompanying figure. The circuit utilizes a 10 by two-dot LED level display. The reference voltage (Vref) for IC1 is adjusted at pin 7 to ensure that all five LEDs (L1 to L5) light up fully. Similarly, the Vref for IC2 is also adjusted at pin 7 to achieve full brightness for its five LEDs (L1 to L5). The output brightness of IC2 is twice that of IC1, following the sequence from L1 to L5 for both ICs.

The BA6104 integrated circuit is designed for use in LED level meters, providing a visual representation of signal levels through a series of illuminated LEDs. The circuit typically consists of two sections, each controlling five LEDs, allowing for a total of ten LEDs to be utilized in a two-dot configuration.

In operation, the reference voltage (Vref) plays a crucial role in determining the brightness and activation of the LEDs. By adjusting the Vref at pin 7 of IC1, the corresponding LEDs (L1 to L5) can be set to illuminate fully, indicating a specific signal level. The same adjustment is made for IC2, which also controls its set of LEDs (L1 to L5). The design ensures that the output from IC2 is twice as bright as that from IC1, creating a clear distinction in visual feedback for users.

This dual configuration allows for effective monitoring of signal levels in various applications, such as audio equipment, where visual feedback is essential for performance assessment. The circuit design can be adapted for different voltage levels and LED configurations, making it versatile for various electronic projects. The BA6104 IC is particularly valuable for engineers looking to implement a straightforward yet effective LED level indication system in their designs. BA6104 Five-digit LED level meter level LED display driver IC circuit constituted as shown in FIG. BA6104 10 by two-dot LED level display circuit configuration shown in Figure adjusted Vref IC1 7 feet, so that IC1 in L1 ~ L5 5 pieces of LED full light; adjusting Vref IC2 7 feet of the IC2 of L1 ~ L5 5 pieces of LED full brightness, this light is 2 times IC1 voltage of the light-emitting order of L1 ~ L5 IC1 to IC2 of L1 ~ L5.