A Product Line of Diodes Incorporated ZRB500 PRECISION 5V MICROPOWER VOLTAGE REFERENCE Description Pin Assignments The ZRB500 uses a bandgap circuit design to achieve a precision micropower voltage reference of 5.0 volts. The device is available in small outline surface mount packages, ideal for applications where space saving is important, as well as packages for through hole requirements. SOT23 Package Suffix – F 2 GND 1 The ZRB500 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRB500 is recommended for operation between 50µA and 15mA and so is ideally suited to low power and battery powered applications. 3 VR (Top View) Pin 1 floating or connected to pin 2 Excellent performance is maintained to an absolute 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 Applications • • • • • • • • • • • • • ± 3%, ± 2% and 1% tolerance Operating current 50µA to 15mA Typical TC 15ppm/°C Transient response, stable in less than 10µs Industrial temperature range Small outline SOT23 style package Green molding compound (No Br, Sb) Battery powered and portable equipment Metering and measurement systems Instrumentation Test equipment Data acquisition systems Precision power supplies Typical Application Circuit VR + GND ZRB500 Document number: DS32240 Rev. 6 - 2 1 of 5 www.diodes.com March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRB500 PRECISION 5V MICROPOWER VOLTAGE REFERENCE Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated) Parameter Reverse Current Forward Current Rating Unit 25 mA 25 mA Operating Temperature -40 to 85 °C Storage Temperature -55 to 125 °C 330 mW Power Dissipation (TAMB = 25°C) SOT23 Electrical Characteristics (Test conditions: TAMB = 25°C, unless otherwise specified.) Symbol Parameter VR Reverse breakdown voltage IMIN Minimum operating current IR Average reverse breakdown voltage temperature coefficient (†) Slope resistance RS IR = 150µA Recommended operating current (*) TC Condition Min. Typ. Max. Tol. (%) Unit 4.95 4.90 4.85 5.0 5.0 5.0 5.05 5.10 5.15 1 2 3 V 30 50 µA 15 mA 15 50 ppm/°C 0.05 IR(MIN) to IR(MAX) ZR Reverse dynamic impedance IR = 1mA f = 100Hz IAC = 0.1IR EN Wideband noise voltage IR = 150µA f = 10Hz to 10kHz 0.33 1.5 Ω 0.4 1 Ω 105 µV(rms) Note: (VR(MAX) − VR(MIN))x1000000 V R x (T (MAX ) − T(MIN)) 50 Note: VR(MAX) – VR(MIN) is the maximum deviation in reference voltage measured over the full operating temperature range (†) RS = ( VR Change IR(MIN) to IR(MAX ) IR(MAX) − IR(MIN) ) REVERSE CURRENT (µA) (*) T C = 60 40 30 TA = 85°C 20 TA = -40°C 10 0 ZRB500 Document number: DS32240 Rev. 6 - 2 2 of 5 www.diodes.com 0.0 2.0 4.0 REVERSE VOLTAGE (V) Reverse Characteristics 6.0 March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRB500 PRECISION 5V MICROPOWER VOLTAGE REFERENCE Typical Characteristics 5.02 1.6 REFERENCE VOLTAGE (V) FORWARD VOLTAGE (V) 1.4 1.2 1.0 0.8 IR = 150µA to 15mA 5.00 4.96 0.6 4.96 0.4 0.1 1 10 100 1000 -40 -20 FORWARD CURRENT (mA) Forward Characteristics 3.0 0 20 40 60 TEMPERATURE (°C) Temperature Drift 80 1000 SLOPE RESISTANCE (Ω) SLOPE RESISTANCE (Ω) IR = 150µA 2.0 TA = -40°C 1.0 TA = 25°C 100 10 IR = 5mA 1 TA = 85°C 0 0.1 10 1 REFERENCE CURRENT (mA) Slope Resistance vs. Current 0.1 0.01 100 VR (V) 4.0 4.0 2.0 2.0 0 0 VIN (V) VR (V) 100 6.0 6.0 VIN (V) 0.1 1 10 FREQUENCY (KHz) Slope Resistance vs. Frequency 10 0 VIN 1K 5mA 33K 150µA VR 10 0 0 500 TIME (µs) Transient Response (Single Pulse) ZRB500 Document number: DS32240 Rev. 6 - 2 0 1000 3 of 5 www.diodes.com 1 2 3 TIME (µs) Transient Response (Repetitive Pulse) 4 March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRB500 PRECISION 5V MICROPOWER VOLTAGE REFERENCE Ordering Information* Tol (%) 1 2 3 Order Reference ZRB500F01TA ZRB500F02TA ZRB500F03TA Notes: Device Mark 50I 50H 50G Reel Size (inches) 7 7 7 Quantity per reel 3000 3000 3000 Tape Width (mm) 8 8 8 *All ZRB500A variants (E-Line 3-pin), ZRB500Y variants (E-Line 2-pin), ZRB500R variants (E-Line 3-pin reversed) and ZRB500N8 variants (SO-8) are obsolete no longer available for sale. The closest alternative is the SOT23. Package Outline Dimensions SOT23 A B C H K M K1 D J F L G SOT23 Dim Min Max Typ A 0.37 0.51 0.40 B 1.20 1.40 1.30 C 2.30 2.50 2.40 D 0.89 1.03 0.915 F 0.45 0.60 0.535 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.903 1.10 1.00 K1 0.400 L 0.45 0.61 0.55 M 0.085 0.18 0.11 0° 8° α All Dimensions in mm Suggested Pad Layout SOT23 Y Z C X ZRB500 Document number: DS32240 Rev. 6 - 2 Dimensions Value (in mm) Z 2.9 X 0.8 Y 0.9 2.0 C 1.35 E E 4 of 5 www.diodes.com March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRB500 PRECISION 5V MICROPOWER VOLTAGE REFERENCE 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). 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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. 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