This document is a technical datasheet for the SANYO LB1405 and LB1415, which are monolithic digital integrated circuits designed as level meters. These devices utilize a bar-shaped display of input levels via 5 LEDs and feature built-in constant current LED drive to ensure consistent brightness regardless of supply voltage variations.
| Supply Voltage Range | 4.4 to 12.0 V |
|---|---|
| LED Display Type | 5 LEDs |
| Operating Temperature Range | -10 to +60 °C |
| Storage Temperature Range | -40 to +125 °C |
| Amp Gain (Open loop) | 30 dB |
For the LB1405, 2.37V at OUT2 is taken as 0 dB.
For the LB1415, 1.50V at OUT2 is taken as 0 dB.
They are used in AC level meters such as VU meters, DC level meters such as signal meters, and supply voltage detection meters.