A Product Line of Diodes Incorporated ZRC250 PRECISION 2.5 VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Description Pin Assignments The ZRC250 uses a bandgap circuit design to achieve a SOT23 Package Suffix F precision 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 V 3 R well as a package for through hole requirements. The ZRC250 design provides a stable voltage without an 1 external capacitor and is stable with capacitive loads. The ZRC250 is recommended for operation between 20 A and 2 GND 5mA and so is ideally suited to low power and battery powered applications. (Top View) Excellent performance is maintained to an absolute Pin 1 floating or connected to pin 2 maximum of 25mA, 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. Features Typical Application Circuit Small outline SOT23 package No stabilizing capacitor required Low knee current, 15A typical Typical T 30ppm/C C Typical slope resistance 0.4 3, 2 and 1% tolerance Industrial temperature range Operating current 20A to 5mA Transient response, stable in less than 10s Green molding compound (No Br, Sb) Applications Battery powered and portable equipment. Instrumentation. Test equipment. 1 of 5 March 2012 ZRC250 Diodes Incorporated www.diodes.com Document number: DS32182 Rev. 6 - 2 A Product Line of Diodes Incorporated ZRC250 PRECISION 2.5 VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated) Parameter Rating Unit Reverse Current 25 mA Forward Current 25 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 Symbol Parameter Condition Min. Typ. Max. Tol. (%) Unit 2.475 2.5 2.525 1 V Reverse breakdown voltage I = 150A 2.45 2.5 2.55 2 V R R 2.425 2.5 2.575 3 I Minimum operating current 13 20 A MIN I Recommended operating current 0.02 5 mA R Average reverse breakdown voltage (*) T 30 90 ppm/C C I to R(MIN) temperature coefficient I R(MAX) () R Slope resistance 0.4 1 S I = 1mA R Z Reverse dynamic impedance f = 100Hz 0.3 0.8 R I = 0.1I AC R I = 150A R E Wideband noise voltage f = 10Hz to 60 V(rms) N 10kHz Note: 40 ( )x1000000 V V R(MAX) R(MIN) (*) = T C x() V T T R (MAX) (MIN) 30 Note: V V is the maximum deviation in reference R(MAX) R(MIN) voltage measured over the full operating temperature range 20 Change( to ) V I I R R(MIN) R(MAX) () = R S T = 25C A I I R(MAX) R(MIN) 10 0 0.0 1.0 2.0 3.0 REVERSE VOLTAGE (V) Reverse Characteristics 2 of 5 March 2012 ZRC250 Diodes Incorporated www.diodes.com Document number: DS32182 Rev. 6 - 2 REVERSE CURRENT (A)