Product Summary

The ta7900fg is a 5 V voltage regulator with watchdog timer. The ta7900fg is designed for microcomputer systems. The ta7900fg products an output voltage of 5 ± 0.25 V without need for adjustment from its accurate reference voltage and amplifer circuit. At power-on, The ta7900fg outputs a reset aignal to reset the system. The ta7900fg will also output a reset signal when the 5 V output voltage drops below 92 % because of disturbance or other problem. The ta7900fg also incorporates a watchdog timer for selfdiagnosing the system.

Parametrics

ta7900fg absolute maximum ratings: (1)Input voltage: 40 V; (2)Output current: 10 mA; (3)Output voltage: 40 V; (4)Power dissipation: 280 mW; (5)Operating temperature: -40 to 85 ℃; (6)Storage temperature: -55 to 150 ℃; (7)Lead temperature: 260 ℃.

Features

ta7900fg features: (1)Accurate output: 5 ± 0.25 V; (2)Output voltage adjusting pin attached; (3)Power-on reset timer incorporated; (4)Watchdog timer incorporated; (5)Operating temperature range: from -40 to 85 ℃; (6)Wide operateing voltage range: 40 V; (7)SOP-14 pin.

Diagrams

ta7900fg block diagram