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Part No.	U490B
Manufacturer	TEMIC
Size	84 Kbytes
Pages	6 pages
Description	One-Shot Phase Control

Datasheet Summary with AI

# U490B One-Shot Phase Control IC

## Overview
The U490B is a monolithic bipolar integrated circuit designed for power control, specifically for applications like electric staplers. It functions as a one-shot phase control, allowing adjustable load voltage intensity.

## Key Features
️· Phase-controlled thyristor ignition
️· Time-delay triggering
️· Repetition time delay
️· Supply current: 2 mA
️· Mains supply via resistor

## Pin Description

Pin Symbol Function

1 NC Not connected

2 Trigger Triggering input

3 Sync. Synchronization input

4 GND Ground

5 Contr Control input

6 Ramp Ramp input

7 Output Output signal

8 VS Supply voltage

## Electrical Characteristics (Typical)
️· Supply Voltage: 7V
️· Current Consumption: 2 mA
️· Start Delay Time: 40-80 ms
️· Repetition Delay Time: 60-80 ms

## Absolute Maximum Ratings
️· Supply Voltage: VS = +125°C
️· Junction Temperature: Tj = +125 °C
️· Ambient Temperature: Tamb = -10 to +100 °C

## Applications
️· Electric stapler devices

## Package Options
️· DIP8
️· SO8

Pin	Symbol	Function
1	NC	Not connected
2	Trigger	Triggering input
3	Sync.	Synchronization input
4	GND	Ground
5	Contr	Control input
6	Ramp	Ramp input
7	Output	Output signal
8	V<sub>S</sub>	Supply voltage