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| ZRT100 9.8V LOW POWER PRECISION REFERENCE SOURCE DESCRIPTION The ZRT100 is a monolithic integrated circuit providing a precise stable reference voltage of 9.8V at 500A. The circuit features a knee current of 150A and operation over a wide range of temperatures and currents. The ZRT100 is available in a SOT223 package for surface mount applications. This device offers a trim facility whereby the output voltage can be adjusted as s h o w n i n Fi g. 1 . Thi s f a c i l i t y i s use d w h e n compensating for system errors or setting the reference output to a particular value. When the trim facility is not used, the pin should be left open circuit. SOT223 FEATURES * Trimmable output * Excellent temperature stability * Low output noise figure * Available in two temperature ranges * 1 and 2% initial voltage tolerance versions available * No external stabilising capacitor required in most cases * Low slope resistance * SOT223 small outline package SOT223 Package suffix G Top view (pin 4 floating or connected to pin 2) ORDERING INFORMATION DEVICE ZRT100GC2 ZRT100GC1 ZRT100GA1 TOL% 2 1 1 OPERATING TEMP. -40 to 85C -40 to 85C -55 to 125C PACKAGE SOT223 SOT223 SOT223 PARTMARK ZRT100C2 ZRT100C1 ZRT100A1 A grade C grade -55C to 125C -40C to 85C ISSUE 3 - DECEMBER 2003 1 SEMICONDUCTORS ZRT100 ABSOLUTE MAXIMUM RATINGS PARAMETER Reverse current A grade C grade Storage temperature (1) (1) SYMBOL LIMIT 30 UNIT mA C C C Operating temperature: T OMP -55 to 125 -40 to 85 T STG -55 to 150 Above 25C this figure should be linearly derated to 6mA at 125C POWER DISSIPATION (at Tamb = 25C unless otherwise stated) PACKAGE SOT223 VALUE 2 UNIT W TEMPERATURE DEPENDENT ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER INITIAL VOLTAGE TOLERANCE % 1&2 GRADE A TYP 27.0 MAX 90.0 GRADE C TYP 10.8 MAX 34.4 mV UNIT V R Output voltage change over relevant temperature range(See note (a)) Output voltage temperature coefficient (See note (b)) TCVR 1&2 15.0 50.0 15.0 50.0 ppm/C ELECTRICAL CHARACTERISTICS (at Tamb = 25C unless otherwise stated) SYMBOL VR PARAMETER Output voltage 1% tolerance (A1,C1) 2% tolerance (C2) V TRIM T C V TRIM IR t on t off e np-p RS Output voltage adjustment range Change in T C V R with output adjustment Operating current range Turn-on time Turn-off time Output voltage noise (over the range 0.1 to 10Hz) Slope resistance See note (c) R L =1k Peak to peak measurement I R = 0.5mA to 5mA See note (d) 0.15 400 0.3 50 1.8 4.0 R T =100k I R =500 A 9.70 9.60 9.80 9.80 5 5.0 30 9.90 10.00 V V % ppm/C/% mA s V CONDITIONS MIN. TYP. MAX. UNIT ISSUE 3 - DECEMBER 2003 SEMICONDUCTORS 2 ZRT100 TYPICAL CHARACTERISTICS NOTES: (a) Output change with temperature The absolute maximum difference between the maximum output voltage and the minimum output voltage over the specified temperature range: (d) Slope resistance (RS) The slope resistance is defined as: RS = VR=Vmax-Vmin (b) Output temperature coefficient (TCVR) The ratio of the output change with temperature to the specified temperature range expressed in ppm/C: V R x 10 6 TCV R = ppm C V R xT T= Full temperature range (c) Operating current (IR) Maximum operating current must be derated as indicated in maximum ratings. ISSUE 3 - DECEMBER 2003 3 change inV R specific current range I=5-0.5=4.5mA (typically) (e) Line regulation The ratio of change in output voltage to the change in input voltage producing it: RS x 100 %/V V R x RSOURCE SEMICONDUCTORS ZRT100 SCHEMATIC DIAGRAM Figure 1: This circuit will allow the reference to be trimmed over a wide range. The device is specified over a 5% trim range. ISSUE 3 - DECEMBER 2003 SEMICONDUCTORS 4 ZRT100 PACKAGE OUTLINE Controlling dimensions are in millimeters. Approximate conversions are given in inches PACKAGE DIMENSIONS Millimeters DIM Min A A1 b b2 C D - 0.02 0.66 2.90 0.23 6.30 Max 1.80 0.10 0.84 3.10 0.33 6.70 Min - 0.0008 0.026 0.114 0.009 0.248 Max 0.071 0.004 0.033 0.122 0.013 0.264 e e1 E E1 L Inches DIM Min Max Min Max 2.30 BSC 4.60 BSC 6.70 3.30 0.90 - 7.30 3.70 - - 0.0905 BSC 0.181 BSC 0.264 0.130 0.0355 - 0.287 0.146 - - Millimeters Inches (c) Zetex plc 2003 Europe Zetex plc Fields New Road Chadderton Oldham, OL9 8NP United Kingdom Telephone (44) 161 622 4444 Fax: (44) 161 622 4446 hq@zetex.com Zetex GmbH Streitfeldstrae 19 D-81673 Munchen Germany Telefon: (49) 89 45 49 49 0 Fax: (49) 89 45 49 49 49 europe.sales@zetex.com Americas Zetex Inc 700 Veterans Memorial Hwy Hauppauge, NY 11788 USA Telephone: (1) 631 360 2222 Fax: (1) 631 360 8222 usa.sales@zetex.com Asia Pacific 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 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 ISSUE 3 - DECEMBER 2003 5 SEMICONDUCTORS |
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