U2100B View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

U2100B

Timer Control for Triac and Relay

Atmel Corporation 

Figure 1-1. Block Diagram with External Circuit

8

C2

Trigger

6

signal

5

Enable

Ct

7

Rt

-VRef

0.5 VRef

+

-

Trigger

window

+

-

0.65 VRef

Supply voltage

limitation

Voltage control

monitoring

Sync

Mode

selection

Noise

suppression

40 ms

Retrigger

delay

640 ms

Control

logic

0.6 VRef

0.5 VRef

ON

OFF

RC Oscillator

Divider 1:210

2

C1

-VS

4

R1

D1

Rsync

Load

3

RG

Output

1

GND

L

Z

Vmains

N

2 U2100B

4769C–INDCO–07/05

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