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UZR285F01

型号:

UZR285F01

品牌:

ZETEX[ ZETEX SEMICONDUCTORS ]

页数:

5 页

PDF大小:

86 K

PRECISION 2.5 VOLT MICROPOWER  
VOLTAGE REFERENCE  
ZR285-2.5  
ISSUE 6 – JANUARY 2003  
FEATURES  
DEVICE DESCRIPTION  
The ZR285 uses a bandgap circuit  
Small outline SOT23 package  
design to achieve  
a precision  
TO92 style packages  
micropower voltage reference of  
2.5 volts. The device is available in a  
small outline surface mount package,  
ideal for applications where space  
saving is important, as well as  
No stabilising capacitor required  
Low knee current, 15µA typical  
Typical TC 30ppm/°C  
packages  
for  
through  
hole  
Typical slope resistance 0.4Ω  
3%, 2% and 1% tolerance  
Industrial temperature range  
Operating current 20µA to 20mA  
requirements.  
The ZR285 design provides a stable  
voltage without an external capacitor  
and is stable with capacitive loads. The  
ZR285 is recommended for operation  
between 20µA and 20mA and so is  
ideally suited to low power and battery  
powered applications.  
APPLICATIONS  
Battery powered and portable equipment.  
Excellent performance is maintained to  
an absolute maximum of 30mA,  
however the rugged design and 20 volt  
processing allows the reference to  
withstand transient effects and  
currents up to 200mA. Superior  
switching capability allows the device  
to reach stable operating conditions in  
only a few microseconds.  
Metering and measurement systems.  
Instrumentation.  
Test equipment.  
Data acquisition systems.  
Precision power supplies.  
SCHEMATIC DIAGRAM  
V
R
Gnd  
4-165  
ZR285-2.5  
ABSOLUTE MAXIMUM RATING  
Power Dissipation (Tamb=25°C)  
SOT23  
330mW  
Reverse Current  
30mA  
E-Line,2 Pin(TO92)  
E-Line,3 Pin(TO92)  
500mW  
500mW  
Forward Current  
Operating Temperature  
Storage Temperature  
25mA  
-40 to 85°C  
-55 to 125°C  
ELECTRICAL CHARACTERISTICS  
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C  
CONDITIONS  
LIMITS  
TOL.  
%
UNITS  
SYMBOL PARAMETER  
MIN  
TYP MAX  
VR  
Reverse Breakdown Voltage  
2.475 2.5 2.525  
2.45 2.5 2.55  
2.425 2.5 2.575  
1
2
3
V
IR=150µA  
IMIN  
IR  
Minimum Operating Current  
13 20  
µA  
Recommended Operating  
Current  
0.02  
20  
mA  
TC  
Average Reverse Breakdown  
Voltage Temp. Co.  
30 90  
ppm/°C  
IR = 1mA to  
20mA  
RS  
ZR  
§
Slope Resistance  
0.4  
1
Reverse Dynamic Impedance  
IR = 1mA  
0.3 0.8  
f
= 100Hz  
IAC=0.1 IR  
EN  
Wideband Noise Voltage  
60  
IR = 150µA  
f = 10Hz to  
10kHz  
µV (rms)  
(VR(max)VR(min)) x 1000000  
TC =  
40  
30  
VR x (T(max)T(min))  
Note: VR(max) - VR(min) is the maximum  
deviation in reference voltage measured  
over the full operating temperature  
range.  
20  
10  
VR Change (IR (min) to IR (max))  
A
T
=25°C  
§
RS =  
IR (max) − IR (min)  
0
0
1.0  
2.0  
3.0  
Reverse Voltage (V)  
Reverse Characteristics  
4-166  
ZR285-2.5  
TYPICAL CHARACTERISTICS  
1.4  
1.2  
1.0  
0.8  
0.6  
2.51  
2.50  
2.49  
2.48  
2.47  
IR=150µA to 5mA  
0.4  
0.2  
1
10  
100  
0.001  
-20  
0
20  
60  
0.01  
0.1  
-40  
40  
80  
Temperature (°C)  
Forward Current (mA)  
Forward Characteristics  
Temperature Drift  
1000  
100  
10  
1.4  
1.2  
IR=150µA  
85°C  
25°C  
-40°C  
1.0  
0.8  
0.6  
0.4  
0.2  
I =5mA  
R
1
IR=1mA  
100K  
1
10  
100  
10  
100  
1K  
0.1  
10K  
Frequency (kHz)  
Reference Current (mA)  
Slope Resistance v Current  
Slope Resistance v Frequency  
10  
0
10  
0
I =5mA  
R
2
IR=5mA  
IR=150µA  
3
2
1
1
IR=150µA  
0
0
0
4
12  
0
4
12  
8
8
16  
16  
Time (µs)  
Time (µs)  
Transient Response - Single pulse  
Transient Response - Repetitive Test  
4-167  
ZR285-2.5  
CONNECTION DIAGRAMS  
E-Line, 2 pin Package Suffix Y  
E-Line, 3 pin,Rev Package Suffix R  
Bottom View  
Bottom View –  
Pin 3 floating or connected to pin 1  
SOT23 Package Suffix F  
Top View –  
Pin 1 floating or connected to pin 2  
ORDERING INFORMATION  
Part No  
Tol% Package  
Partmark  
Part No  
Tol% Package  
Partmark  
ZR285F03  
ZR285F02  
ZR285F01  
ZR285R03  
ZR285R02  
3
2
1
3
2
SOT23  
SOT23  
SOT23  
28A  
28B  
28C  
ZR285R01  
ZR285Y03  
ZR285Y02  
ZR285Y01  
1
3
2
1
E-Line * ZR28501  
E-Line ZR28503  
E-Line ZR28502  
E-Line ZR28501  
E-Line * ZR28503  
E-Line * ZR28502  
* E-Line 3 pin Reversed  
E-Line 2 pin  
4-168  
PRODUCT AND INFORMATION DISCLAIMER  
This publication is issued to provide outline information only which (unless agreed by the  
Company in writing) may not be used, applied or reproduced for any purposes or form part of any  
order or contract or be regarded as representation relating to the products or services concerned.  
The company reserves the right to alter without notice the specification, design, price or  
conditions of supply of any product or service.  
Some changes to earlier published data may have been made, data presented in this hand book  
supersedes all previous specifications. The information contained in this publication has been  
carefully checked and is considered to be accurate, but no responsibility is assumed for any  
inaccuracies.  
Zetex makes no warranty, representation or guarantee regarding the suitability of the products  
and circuits in this publication for any given purpose; nor does Zetex assume any liability arising  
from the use or application of any of these products or circuits and specifically disclaims any and  
all consequential and incidental damages.  
Zetex products are specifically not authorised for use as critical components in life support  
devices or systems without the express written approval of the Managing Director of Zetex plc.  
As used herein -  
a. Life support devices or systems are devices or systems which  
(1) are intended to implant into the body, or  
(2) support or sustain life and whose failure to perform when properly used in accordance  
with instructions for use provided in the labelling can be reasonably expected to result in  
significant injury to the user.  
b. A critical component is any component in a life support device or system whose failure to  
perform can be reasonably expected to cause the failure of the life support device or to affect its  
safety or effectiveness.  
E. & O. E.  
”all rights reserved“  
© Zetex plc 2002  
Europe  
Americas  
Asia Pacific  
Zetex plc  
Fields New Road  
Chadderton  
Oldham, OL9 8NP  
United Kingdom  
Telephone (44) 161 622 4422  
Fax: (44) 161 622 4420  
uk.sales@zetex.com  
Zetex GmbH  
Streitfeldstraße 19  
D-81673 München  
Zetex Inc  
700 Veterans Memorial Hwy  
Hauppauge, NY11788  
Zetex (Asia) Ltd  
3701-04 Metroplaza, Tower 1  
Hing Fong Road  
Kwai Fong  
Hong Kong  
Telephone: (852) 26100 611  
Fax: (852) 24250 494  
asia.sales@zetex.com  
Germany  
USA  
Telefon: (49) 89 45 49 49 0  
Fax: (49) 89 45 49 49 49  
europe.sales@zetex.com  
Telephone: (631) 360 2222  
Fax: (631) 360 8222  
usa.sales@zetex.com  
These offices are supported by agents and distributors in major countries world-wide.  
This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced  
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Company  
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.  
For the latest product information, log on to www.zetex.com  
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