HA17555 (Precision timer IC )

Description

Description: HA17555 Series are ICs designed for accurate time delays or oscillations.HA17555 provides both of trigger terminal and reset terminal in order to enable a wide scope of application including Mono Multi Vibrator and Astable Multi Vibrator, and the number of external components is fewer. Further, it's compatible with NE555 of singnetics. Features: · Mono multi vibrator can be constructed with one resistor and one capacitor. · Astable multi vibrator can be constructed with two resistors and one capacitor. · Delay time can be established widely from several µ seconds to several hours. · Pulse Duty can be controlled. · The maximum value of both sink current and source current is 200mA. · Direct connection of output to TTL is possible. · Temperature/delay time ratio is 50 ppm/°C (typ). · Output is normally in the on and off states. Application · Delay Time Generator (Mono Multi Vibrator) · Pulse Generator (Astable Multi Vibrator) · Pulse Width Modulator · Pulse Location Modulator · Miss Pulse Detector Specifications Item Symbol HA17555PS/FP HA17555/F Unit Supply voltage VCC 18 18 V Discharge current IT 200 200 mA Output source current Isource 200 200 mA Output sink current Isink 200 200 mA Power dissipation*1 PT 600/385 600/385 mW Operating temperature Topr 20 to +75 20 to +70 °C Storage temperature Tstg 55 to +125 55 to +125 °C Note: 1. For the HA17555/PS, This value applies up to Ta = 50°C; at temperatures above this, 8.3mW/°C derating should be applied. For the HA17