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LM3915N-1
LM3914 is a single-chip integrated circuit that detects analog voltage levels and drives 10 LED, s to provide linear analog display. A single pin changes change point display to bar display. The currently driving LED is adjustable and programmable without resistance. This function allows for the entire operating system voltage of less than 3V. The circuit contains its own adjustable reference voltage and accumulation rate 10 step divider. Low-bias current input buffer.
Features
Can drive the LED, LCD,vacuum fluorescent lamp External switching point / bar display mode
Scalable to a display of 100 steps
Internal reference voltage range 1.2V ~12V
Single power supply is less than 3V
The Input terminal is on the ground
Output current adjustable range:2mA~30mA
There is no multiplex switching or interaction between the outputs
Input the voltage to withstand the ± 35V without damage or incorrect output
The output current is adjustable and the collector is open
Can drive the TTL or CMOS directly
The internal 10-order pressure divider hangs at both ends to set a wide adjustment range
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