Overview
The Enviro Testers is a reliable LED display driver IC designed for accurate voltage level indication. Its standard design ensures easy integration in various electronic applications. With stable functionality and durability, it is widely used in display and measurement systems. An ideal choice for developers and engineers requiring dependable IC solutions.
Features
- Drives 10 LEDs, LCDs, or VFDs directly.
- Operates in both dot and bar display modes.
- Wide input voltage range 3V to 25V for flexibility.
- Adjustable LED current (no external resistors needed).
- Logarithmic (dB) scale display for audio and signal monitoring.
- Low power consumption, efficient IC design.
- Compatible with analog and digital circuits.
Technical Specifications
| Frequency Response | DC – 20 kHz |
| Series | LM391X Series |
| Functional Application | LED Display Driver, Audio VU Meter, Voltage Indicator |
| Display Modes | Dot / Bar |
| Input Voltage Range | 3V – 25V DC |
| LED Current Drive | 2 mA – 30 mA (adjustable) |
| Number of Outputs | 10 outputs (LED, LCD, or VFD) |
| Linearity | Logarithmic (3 dB per step) |
| Reference Voltage | Adjustable, 1.2V typical |
| Power Supply Voltage | 3V – 25V DC |
| Operating Temperature | 0°C to +70°C (32°F to 158°F) |
| Storage Temperature | –40°C to +150°C (–40°F to 302°F) |
| Mounting Type | Through-Hole / DIP-18 Package |
| Package Dimensions | Approx. 22.86 mm × 6.35 mm (0.9 in × 0.25 in) |
| Weight | ~10 g |
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