© 1995 Microchip Technology Inc.

Preliminary

DS21112B-page 1

FEATURES

• Energy Management Controller

• Based on 8-bit RISC Technology

• Proprietary Power Management Algorithm

• Reduces the power consumption of induction

motor systems

• 5V Operation

• 18-pin PDIP and SOIC Packages

• 8-bit Analog-to-Digital (A/D) Converter

• Automatic Power-on Reset

• Power-up Timer

• Commercial and Industrial Temperature Range

Operation

• Multiple parts can be slaved for three-phase oper-

ation

INTRODUCTION

The MTE1122 is an Energy Management Controller IC

for single-phase induction motors. This CMOS device

is based on Microchip Technology Inc’s RISC proces-

sor core and proprietary algorithms. When combined

with some external analog components, it will provide

an electronic system that economically reduces the

operating costs of small induction motors by as much

as 58%. It will also allow motors to run cooler and with

less vibration. The system operates on single phase

110 or 220 VAC.

PACKAGE TYPE

FIGURE 1: SYSTEM BLOCK DIAGRAM

P-Sense

RESET

ZC-Sense

TTRIG

NC

NC

• 1

2

3

4

5

6

7

8

9

Gate Input

OSC1

OSC2

IND

NC

NC

NC

18

17

16

15

14

13

12

11

10

18-Lead PDIP/SOIC

MTE1122

LINE IN

LINE OUT

TO MOTOR

TRIAC

VOLTAGE

ZERO-CROSS

VOLTAGE AMP

CURRENT

ZERO-CROSS

POWER

NEUTRAL IN

NEUTRAL OUT

FIGURE 2: ENERGY SAVINGS

0.0

10.0

20.0

30.0

40.0

50.0

60.0

0

1 02 03 04 05 06 0

7 08 09 0

1 0 0

Percent Load

MTE1122

Energy Management Controller IC