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AN8850G-D08-T [UTC]

MOTOR CONTROL CIRCUITS; 电机控制电路
AN8850G-D08-T
型号： AN8850G-D08-T
厂家： Unisonic Technologies    Unisonic Technologies
描述：

MOTOR CONTROL CIRCUITS
电机控制电路

电动机控制 电机
文件： 总5页 (文件大小：155K)
中文：  中文翻译
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UNISONIC TECHNOLOGIES CO., LTD  
AN8850  
Preliminary  
CMOS IC  
MOTOR CONTROL CIRCUITS  
„
DESCRIPTION  
The UTC AN8850 is  
a electronic governor suitable for  
low-voltage and compact DC motors generally used in the tape  
recorder, etc.  
„
FEATURES  
* Wide range of operating voltage : VCC(opr) =1.8V ~ 12V  
* 2 package types  
* Fewer external parts  
* Speed control in steps with linear fine control  
DIP-8  
„
ORDERING INFORMATION  
Ordering Number  
Lead Free  
Package  
DIP-8  
Packing  
Tube  
Halogen Free  
AN8850G-D08-T  
AN8850L-D08-T  
Note: xx: Output Voltage, refer to Marking Information.  
AN8850L-D08-T  
(1)Packing Type  
(1) T: Tube  
(2) D08: DIP-8  
(2)Package Type  
(3)Lead Free  
(3) Halogen Free, L: Lead Free  
www.unisonic.com.tw  
1 of 5  
Copyright © 2011 Unisonic Technologies Co., Ltd  
QW-R502-507.a  
AN8850  
Preliminary  
CMOS IC  
„
PIN CONFIGURATION  
VREF  
-
Phase Compensation  
Motor Pin  
1
2
8
7
VREF  
+
VCC  
GND  
GND  
3
4
6
5
Comparator Input  
„
PIN DESCRIPTION  
PIN NO.  
PIN NAME  
DESCRIPTION  
1
2
3
4
5
6
7
8
VREF  
VREF  
VCC  
-
VREF  
-
+
VREF+  
Power Supply  
Input of Comparator  
Ground  
Comparator Input  
GND  
GND  
Ground  
Motor Pin  
Output Pin  
Phase Compensation  
Phase Compensation  
„
BLOCK DIAGRAM  
UNISONIC TECHNOLOGIES CO., LTD  
2 of 5  
QW-R502-507.a  
www.unisonic.com.tw  
AN8850  
Preliminary  
CMOS IC  
„
ABSOLUTE MAXIMUM RATING (Ta= 25°C)  
PARAMETER  
SYMBOL  
RATINGS  
12  
UNIT  
V
Supply Voltage  
VCC  
Circuit Voltage  
Vn – 5, 6 (n = 1, 2, 3, 4)  
-0.5~7.5  
-0.5~1  
2
V
Circuit Voltage  
Vn – 5, 6  
ICC (Note 1)  
IOUT  
V
Supply Current  
A
Circuit Current  
2
A
Power Dissipation  
Operating Ambient Temperature  
Storage Temperature  
PD  
750  
mW  
°C  
TOPR  
-20~+75  
-40~+150  
°C  
TSTG  
Notes:  
Absolute maximum ratings are those values beyond which the device could be permanently damaged.  
Absolute maximum ratings are stress ratings only and functional device operation is not implied.  
1. t ≤ 5µs  
„
ELECTRICAL CHARACTERISTICS (Ta= 25°C)  
PARAMETER  
SYMBOL  
ICC  
TEST CONDITIONS  
MIN  
1.20  
TYP MAX UNIT  
Supply Current  
VCC=3V  
2
3
mA  
V
Reference Voltage  
Vref  
VCC=3V, V2-1>10kΩ  
1.28 1.35  
Supply voltage in which 30mA current  
flows to Ra  
VCC=1.8V， Ra=4.7Ω  
Starting Voltage  
VCC(S)  
1.0  
0.2  
1.2  
0.5  
V
V
Saturation Voltage  
VSAT  
ΔVref  
/ ΔVCC  
Vref  
Voltage Characteristics 1  
Voltage Characteristics 2  
V
CC= 1.8V ~ 12V  
CC= 1.8V ~ 12V  
-1.25  
-1.2  
0.1 1.25  
%V  
%V  
ΔVa  
/ ΔVCC  
V
0.1  
1.2  
Va  
ΔVref  
/ ΔIOUT  
/ ΔTa  
Current Characteristics  
Current Characteristics  
IOUT =1~20mA  
-0.2  
0.01 0.2  
0.01  
%mA  
%°C  
Vref  
ΔV  
ref  
Ta=-20~+60°C， VCC=3.0V  
V
ref  
Note: Operating Supply Voltage Range : VCC (opr) = 1.8V ~ 12V  
UNISONIC TECHNOLOGIES CO., LTD  
3 of 5  
QW-R502-507.a  
www.unisonic.com.tw  
AN8850  
Preliminary  
CMOS IC  
„
TYPICAL APPLICATION CIRCUIT  
Speed Control Circuit with 3V Core Motor  
Motor  
Ra=4Ω  
8
1
7
6
5
4
UTC  
AN8850  
0.1µF  
M
2
3
1000pF  
9.1kΩ  
(2000ppm/°C)  
-
1µF  
10V  
VR  
1kB  
+
510Ω  
VCC  
0.4Ω  
(3900ppm/°C)  
3Ω  
Motor Constants  
Ra : Internal resistor = 4Ω  
Ka : Electromotive force constant = 0.4mV/rpm  
KT : Torque constant = 30g · cm/A  
UNISONIC TECHNOLOGIES CO., LTD  
4 of 5  
QW-R502-507.a  
www.unisonic.com.tw  
AN8850  
Preliminary  
CMOS IC  
UTC assumes no responsibility for equipment failures that result from using products at values that  
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or  
other parameters) listed in products specifications of any and all UTC products described or contained  
herein. UTC products are not designed for use in life support appliances, devices or systems where  
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in  
whole or in part is prohibited without the prior written consent of the copyright owner. The information  
presented in this document does not form part of any quotation or contract, is believed to be accurate  
and reliable and may be changed without notice.  
UNISONIC TECHNOLOGIES CO., LTD  
5 of 5  
QW-R502-507.a  
www.unisonic.com.tw  

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