ZR285F02TA Diodes Incorporated

A Product Line of Diodes Incorporated ZR285 PRECISION 2.5V MICROPOWER VOLTAGE REFERNCE Description Pin Assignment The ZR285 uses a bandgap circuit design to achieve a 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. The ZR285 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZR285 is recommended for operation between 20 A and 20mA and so is ideally suited to low power and battery powered applications. Excellent performance is maintained to an absolute maximum of 30mA, however the rugged design and 20 volt (Top View) processing allows the reference to withstand transient Pin 1 floating or connected to pin 2 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 style package No stabilizing capacitor required Low knee current, 15A typical Typical T 30ppm/C C Typical slope resistance 0.4 2% tolerance Industrial temperature range Operating current 20A to 20mA Applications Battery powered and portable equipment Metering and measurement systems Instrumentation Test equipment Data acquisition systems Precision power supplies 1 of 5 May 2010 ZR285 Diodes Incorporated www.diodes.com Document number: DS32168 Rev. 8 - 2 A Product Line of Diodes Incorporated ZR285 Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated) Parameter Rating Unit Reverse Current 30 mA Forward Current 25 mA Operating Temperature -40 to 85 C Storage Temperature -55 to 150 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 V Reverse breakdown voltage I = 150A 2.45 2.5 2.55 2 V R R I Minimum operating current 13 20 A MIN Recommended operating current 0.02 20 mA I R Average reverse breakdown voltage (*) 30 90 ppm/C T C I = 1mA to R temperature coefficient () 20mA Slope resistance 0.4 1 R S I = 1mA R Reverse dynamic impedance f = 100Hz 0.3 0.8 Z R I = 0.1I AC R I = 150A R Wideband noise voltage 60 V(rms) E f = 10Hz to N 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. V Change ( to I ) () R IR(MIN) R(MAX) R = S I I ) R(MAX) R(MIN) . 2 of 5 May 2010 ZR285 Diodes Incorporated www.diodes.com Document number: DS32168 Rev. 8 - 2