A Product Line of Diodes Incorporated ZRC330 PRECISION 3.3VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Description Pin Assignments The ZRC330 uses a bandgap circuit design to achieve a precision micropower voltage reference of 3.3 volts. The device is available in a small outline surface mount package, ideal for applications where space saving is important. The ZRC330 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRC330 is recommended for operation between 20µA and 5mA and so is ideally suited to low power and battery powered applications. SOT23 Package Suffix – F VR 3 1 GND 2 (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 • • • • • • • • Typical Application Circuit Small outline SOT23 package No stabilizing capacitor required Low knee current, 15μA typical Typical slope resistance 0.6Ω ± 3%, ± 2% and 1% tolerance Industrial temperature range Operating current 20μA to 5mA Green molding compound (No Br, Sb) + Applications • • • • • • • Battery powered and portable equipment. Metering and measurement systems Instrumentation Test equipment Data acquisition systems Precision power supplies Crystal oscillators ZRC330 Document number: DS32163 Rev. 7 - 2 1 of 5 www.diodes.com March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRC330 PRECISION 3.3VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Absolute Maximum Ratings Rating Unit Reverse Current Parameter 25 mA Forward Current 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 Condition IR = 150µA Min. Typ. Max. Tol. (%) Unit 3.27 3.234 3.201 3.3 3.3 3.3 3.33 3.366 3.399 1 2 3 V 15 20 µA 5 mA 15 50 ppm/°C 0.6 2 Ω 1.2 Ω Recommended operating current TC(*) Average reverse breakdown voltage temperature coefficient RS(†) Slope resistance 0.02 IR(MIN) to IR(MAX) ZR Reverse dynamic impedance IR = 1mA f = 100Hz IAC = 0.1IR 0.5 EN Wideband noise voltage IR = 150µA f = 10Hz to 10kHz 75 µV(rms) Note: 40 (VR(MAX) − VR(MIN))x1000000 (*) T C = V R x (T (MAX ) − T(MIN)) 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) 30 20 TA = 85°C 10 TA = 25°C T A = -40°C 0 0.0 ZRC330 Document number: DS32163 Rev. 7 - 2 2 of 5 www.diodes.com 2.0 Reverse Voltage (V) 4.0 March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRC330 PRECISION 3.3VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Typical Characteristics 9.31 REFERENCE VOLTAGE (V) 1.6 FORWARD VOLTAGE (V) 1.4 1.2 1.0 0.8 IR = 150µA to 5mA 9.30 9.29 0.6 0.4 0.1 1 10 100 -40 1000 -20 FORWARD CURRENT (mA) Forward Characteristics 0 20 40 60 TEMPERATURE (°C) Temperature Drift 80 1000 3.0 2.0 SLOPE RESISTANCE (Ω) SLOPE RESISTANCE (Ω) IR = 150µA TA = -40°C TA = 25°C 1.0 100 IR = 1mA 10 IR = 5mA 1 TA = 85°C 0 0.1 1 REFERENCE CURRENT (mA) Slope Resistance vs. Current VR (V) INPUT 150µA 2.0 0.1 1 10 FREQUENCY (KHz) Slope Resistance vs. Frequency 100 3.0 5mA 1K3 5mA 43K 150µA OUTPUT 5mA INPUT 2.0 150µA 1.0 1.0 0 0 VIN (V) VIN (V) VR (V) 3.0 0.1 0.01 10 10 0 1K3 5mA 43K 150µA OUTPUT 10 0 0 100 200 TIME (µs) Transient Response (Single Pulse) ZRC330 Document number: DS32163 Rev. 7 - 2 300 3 of 5 www.diodes.com 0 1 2 3 TIME (µs) Transient Response (Repetitive Pulse) 4 March 2012 © Diodes Incorporated A Product Line of Diodes Incorporated ZRC330 PRECISION 3.3VOLT LOW KNEE CURRENT VOLTAGE REFERENCE Ordering Information* Tol (%) 1 2 3 Part No. ZRC330F01TA ZRC330F02TA ZRC330F03TA Notes: Package Device Mark SOT23 SOT23 SOT23 33C 33B 33A Reel Size (inches) 7 7 7 Quantity per reel 3000 3000 3000 Tape Width (mm) 8 8 8 * All ZRC330A variants (E-Line) are obsolete and 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 ZRC330 Document number: DS32163 Rev. 7 - 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 ZRC330 PRECISION 3.3VOLT LOW KNEE CURRENT 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). 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 systems-related 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 © 2012, Diodes Incorporated www.diodes.com ZRC330 Document number: DS32163 Rev. 7 - 2 5 of 5 www.diodes.com March 2012 © Diodes Incorporated