ZXRE1004EFTA Diodes Incorporated

A Product Line of Diodes Incorporated ZXRE1004 SOT23 MICROPOWER (4A) 1.22V VOLTAGE REFERENCE Description Pin Assignments The ZXRE1004 is a 1.22 volt bandgap reference circuit SOT23 Package Suffix - F designed for ultra low current operation, typically 4 A. 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 (Top View) been designed to be highly tolerant of capacitive loads so Pin 1 floating or connected to pin 2 maintaining excellent stability. As well as the SOT23, the ZXRE1004 can offer a pin for pin compatible alternative to the REF1004, LT1004 and E-Line, 3 pin, Rev Package Suffix R LM185/385 series of voltage references with an E-Line (TO92 style) equivalent. Features High performance alternative to REF1004, LT1004 and OBSOLETE LM185/385 references 4A typical knee current Small outline SOT23 package (Bottom View) 20ppm/C typical temperature coefficient Unconditionally stable Pin 3 floating or connected to pin 1 1% tolerance Contact Diodes marketing for availability of tighter tolerance devices Green molding compound Applications Schematic Diagram 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 Applications Circuit 1 of 5 June 2010 ZXRE1004 Diodes Incorporated www.diodes.com Document number: DS32172 Rev. 4 - 2 A Product Line of Diodes Incorporated ZXRE1004 Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated) Parameter Rating Unit Reverse Current 30 mA Forward Current 10 mA Operating Temperature -40 to 85 C Storage Temperature -55 to 125 C Power Dissipation (T = 25C) AMB 330 mW SOT23 Electrical Characteristics (Test conditions: T = 25C, unless otherwise specified.) amb Tol. Symbol Parameter Condition Min. Typ. Max. Unit (%) 1.208 1.22 1.232 1 Reverse breakdown voltage V V I = 100A R R 1.183 1.22 1.257 3 Minimum knee current 4 8 A I MIN Recommended operating current 0.008 20 mA I R range (*) Average reverse breakdown voltage T I to I 20 75 ppm/C C R(MIN) R(MAX) temperature coefficient V Reverse breakdown voltage change I =8A to 1mA 1 R R mV with current 10 I I =1mA to 20mA R R I = 1mA R Reverse dynamic impedance f = 100Hz 0.2 0.6 Z R I = 0.1I AC R I =8A to 100A R Wideband noise voltage 60 V(rms) E N f=10Hz to 10kHz Notes: (V V ) x 1000000 (*) R(MAX) R(MIN) T = C V x (T T ) R (MAX) (MIN) Note: V - V is the maximum deviation in reference R(MAX) R(MIN) voltage measured over the full operating temperature range. () 0.5% SOT23 only . 2 of 5 June 2010 ZXRE1004 Diodes Incorporated www.diodes.com Document number: DS32172 Rev. 4 - 2