U2010B 데이터 시트보기 (PDF) - Atmel Corporation

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U2010B

Phase-control IC with Current Feedback and Overload Protection

Atmel Corporation 

Features

• Full-wave Current Sensing

• Mains Supply Variation Compensated

• Programmable Load-current Limitation with Over- and High-load Output

• Variable Soft Start

• Voltage and Current Synchronization

• Automatic Retriggering Switchable

• Triggering Pulse Typically 125 mA

• Internal Supply-voltage Monitoring

• Current Requirement ≤ 3 mA

• Temperature-compensated Reference Voltage

Applications

• Advanced Motor Control

• Grinder

• Drilling Machine

1. Description

The U2010B is designed as a phase-control circuit in bipolar technology for motor

control applications with load-current feedback and overload protection. It enables

load-current detection and has a soft-start function as well as reference voltage

output.

Figure 1-1. Block Diagram

Limiting

detector

15

Voltage

detector

14

13

Overload

Mains voltage

compensation

12

High load

11

Supply 10

voltage GND

Phase-control

IC with Current

Feedback and

Overload

Protection

U2010B

Automatic

retriggering

Current

detector

16

1

Load

current

detector

2

Phase

Output

control unit

-

12

ϕ = f(V4)

Full wave

rectifier

Level

shift

3

4

5

100% 70%

A

αmax

B9

Programmable Auto-

+

overload

start

protection

C

Imax

Voltage

monitoring

U2010B

Soft

start

Reference

voltage

6

7

8

4766C–INDCO–04/10

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