Giới thiệu [1 CON] IC LM3915 DIP-18 (LM3915N-1 3915)
IC LM3915 LM3915N DIP-18
LM3915 Dot/Bar Display Driver
• 3 dB/step, 30 dB Range • Drives LEDs, LCDs, or Vacuum Fluorescents • Bar or Dot Display Mode Externally Selectable by User • Expandable to Displays of 90 dB • Internal Voltage Reference from 1.2V to 12V • Operates with Single Supply of 3V to 25V • Inputs Operate Down to Ground • Output Current Programmable from 1 mA to 30 mA • Input Withstands ±35V without Damage or False Outputs • Outputs are Current Regulated, Open Collectors • Directly Drives TTL or CMOS • The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of Voltages The LM3915 is Rated for Operation from 0°C to +70°C. The LM3915N-1 is Available in an 18-lead PDIP Package.