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A Product Line of Diodes Incorporated
ZXRE1004
SOT23 MICROPOWER (4A) 1.22V VOLTAGE REFERENCE
Description
The ZXRE1004 is a 1.22 volt bandgap reference circuit designed for ultra low current operation, typically 4A. The device is available in a SOT23 surface mount package offering the ultimate in space and power saving. These features make the ZXRE1004 particularly suitable for portable and battery powered applications. SOT23 tolerance selection is available to 0.5% for precision applications. Excellent performance is maintained over the 8A to 20mA operating current range with a typical temperature coefficient of only 20ppm/C. The device has been designed to be highly tolerant of capacitive loads so maintaining excellent stability. As well as the SOT23, the ZXRE1004 can offer a pin for pin compatible alternative to the REF1004, LT1004 and LM185/385 series of voltage references with an E-Line (TO92 style) equivalent.
Pin Assignments
SOT23 Package Suffix - F
(Top View) Pin 1 floating or connected to pin 2 E-Line, 3 pin, Rev Package Suffix - R
Features
* * * * * * * * High performance alternative to REF1004, LT1004 and LM185/385 references 4A typical knee current Small outline SOT23 package 20ppm/C typical temperature coefficient Unconditionally stable 1% tolerance Contact Diodes marketing for availability of tighter tolerance devices "Green molding compound
OBSOLETE
(Bottom View) Pin 3 floating or connected to pin 1
Applications
* * * * * * * * Battery powered equipment Precision power supplies Portable instrumentation Portable communications devices Notebook and palmtop computers Data acquisition systems A/D and D/A converters Test equipment
Schematic Diagram
Applications Circuit
ZXRE1004
Document number: DS32172 Rev. 4 - 2
1 of 5 www.diodes.com
June 2010
(c) Diodes Incorporated
A Product Line of Diodes Incorporated
ZXRE1004 Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated)
Parameter Reverse Current Forward Current Operating Temperature Storage Temperature Power Dissipation (TAMB = 25C) SOT23 Rating 30 10 -40 to 85 -55 to 125 330 Unit mA mA C C mW
Electrical Characteristics
Symbol VR IMIN IR TC
(*)
(Test conditions: Tamb = 25C, unless otherwise specified.)
Parameter Reverse breakdown voltage Minimum knee current Recommended operating current range Average reverse breakdown voltage temperature coefficient Reverse breakdown voltage change with current Reverse dynamic impedance Wideband noise voltage
(VR(MAX) - VR(MIN)) x 1000000 VR x (T(MAX) - T(MIN))
Condition IR = 100A
Min. 1.208 1.183 0.008
Typ. 1.22 1.22 4
Max. 1.232 1.257 8 20
Tol. (%) 1 3
Unit V A mA ppm/C mV V(rms)
IR(MIN) to IR(MAX) IR=8A to 1mA IR=1mA to 20mA IR = 1mA f = 100Hz IAC = 0.1IR IR=8A to 100A f=10Hz to 10kHz
20
75 1 10
VR IR ZR EN
Notes:
(*)
0.2 60
0.6
TC =
Note: VR(MAX) - VR(MIN) is the maximum deviation in reference voltage measured over the full operating temperature range.
()
0.5% SOT23 only
.
ZXRE1004
Document number: DS32172 Rev. 4 - 2
2 of 5 www.diodes.com
June 2010
(c) Diodes Incorporated
A Product Line of Diodes Incorporated
ZXRE1004 Typical Characteristics
ZXRE1004
Document number: DS32172 Rev. 4 - 2
3 of 5 www.diodes.com
June 2010
(c) Diodes Incorporated
A Product Line of Diodes Incorporated
ZXRE1004 Ordering Information(*)
Order Reference ZXRE1004CFTA ZXRE1004DFTA ZXRE1004EFTA ZXRE1004FFTA
Notes:
Tol (%) 0.5 1 2 3
Package SOT23 SOT23 SOT23 SOT23
Device Mark 10D 10C 10B 10A
Status (*) Obsolete Released NRND Released
Reel Size (inches) 7 7 7 7
Quantity per reel 3000 3000 3000 3000
Tape Width (mm) 8 8 8 8
*All ZXRE1004xR variants (E-Line) are obsolete. NRND = Not Recommended for New Designs For tape and reel options add suffix TA to the part number eg ZXRE1004DFTA
Package Outline Dimensions SOT23
E
e b 3 leads e1
L1
E1
D
A A1 L c
Dim.
Millimeters Min. Max. 1.12 0.10 0.50 0.20 3.04
Inches Min. 0.0004 0.012 0.003 0.110 Max. 0.044 0.004 0.020 0.008 0.120
Dim.
Millimeters Min. Max.
Inches Min. Max.
A A1 b c D e
0.01 0.30 0.085 2.80
e1 E E1 L L1 -
1.90 NOM 2.10 1.20 0.25 0.45 2.64 1.40 0.60 0.62 -
0.075 NOM 0.083 0.047 0.0098 0.018 0.104 0.055 0.0236 0.024 -
0.95 NOM
0.037 NOM
Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches
ZXRE1004
Document number: DS32172 Rev. 4 - 2
4 of 5 www.diodes.com
June 2010
(c) Diodes Incorporated
A Product Line of Diodes Incorporated
ZXRE1004
IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. 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 labeling 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. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systemsrelated information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright (c) 2010, Diodes Incorporated www.diodes.com
ZXRE1004
Document number: DS32172 Rev. 4 - 2
5 of 5 www.diodes.com
June 2010
(c) Diodes Incorporated

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