TS822 2.5V MICROPOWER SHUNT VOLTAGE REFERENCE ■ 2.50V TYP. OUTPUT VOLTAGE ■ ULTRA LOW CURRENT CONSUMPTION: 40µA TYP. ■ HIGH PRECISION @ 25°C ±2% (Standard version) ±1% (A grade) ■ HIGH STABILITY WHEN USED WITH CAPACITICE LOAD ■ INDUSTRIAL TEMPERATURE RANGE: -40 to +85°C ■ 100ppm/°C MAXIMUM TEMPERATURE COEFFICIENT Z TO-92 (Plastic Package) DESCRIPTION The TS822 is a low power shunt voltage reference providing a stable 2.5V output voltage over the industrial temperature range (-40 to +85°C). Availabe in SOT23-3 surface mount package, it can be designed in applications where space saving is a critical issue. The low operating current is a key advantage for power restricted designs. In addition, the TS822 is very stable and can be used in a broad range of application conditions. L SOT23-3L (Plastic Micropackage) PIN CONNECTIONS (top view) APPLICATION ■ ■ ■ ■ ■ Computers Instrumentation Battery chargers Switch Mode Power Supply Battery operated equipments ORDER CODE Precision TO92 SOT23-3 2% TS822IZ TS822IL 1% TS822AIZ TS822AIL Single temperature range: -40 to +85°C SOT23 Marking L223 L222 Z = TO92 Plastic package LT = Tiny Package (SOT23-5) - only available in Tape & Reel (LT) March 2000 1/8 TS822 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Ik Reverse Breakdown Current 20 mA If Forward Current 10 mA 360 625 mW Pd Power Dissipation 1) SOT23-3 TO-92 Toper Operating Free Air Temperature Range -40 to +85 °C Tstd Storage Temperature -65 to +150 °C ESD Human Body Model (HBM) Machine Model (MM) 2 200 kV V Tlead Lead Temperature (soldering, 10 seconds) 260 °C Value Unit 1. Pd has been calculated with Tamb = 25°C and Rthja = 200°C/W for the TO92 package Rthja = 340°C/W for the STO23-3L package OPERATING CONDITIONS Symbol Parameter Ikmin Minimum Operating Current 50 µA Ikmax Maximum Operating Current 15 mA 2/8 TS822 ELECTRICAL CHARACTERISTICS TS822 (2% Precision) Tamb = 25°C (unless otherwise specified) Symbol Parameter Test Condition Reverse Breakdown Voltage Vk Ikmin Ik = 100µA Ik = 100µA Reverse Breakdown Voltage Tolerange -40°C < T < +85°C Minimum Operating Current ∆Vref/∆T Average Temperature Coefficient ∆Vk/∆Ik Reverse Breakdown Voltage Change with Operating Current Range Rka Reverse Static Impedance Kvh Long Term Stability En Wide Band Noise Min. Typ. Max. Unit 2.45 -50 -66 2.5 2.55 50 66 V T = 25°C -40°C < T < +85°C Ik = 100µA Ikmin < Ik < 1mA -40°C < T < +85°C 1mA < Ik < 15mA -40°C < T < +85°C Ik = Ikmin to 1mA -40°C < T < +85°C Ik = 1 to 15mA -40°C < T < +85°C Ik = 100µA, t = 1000hrs Ik = 100µA 10Hz < f < 10kHz 40 50 60 100 1 1.2 8 10 1 1.2 0.6 0.7 30 0.4 2.5 0.4 0.2 mV µA ppm/°C mV Ω 120 ppm 35 µVrms Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design. ELECTRICAL CHARACTERISTICS TS822A (1% Precision) Tamb = 25°C (unless otherwise specified) Symbol Parameter Reverse Breakdown Voltage Test Condition Ik = 100µA Vk Ik = 100µA Reverse Breakdown Voltage Tolerange -40°C < T < +85°C T = 25°C Ikmin Minimum Operating Current -40°C < T < +85°C ∆Vref/∆T Average Temperature Coefficient Ik = 100µA Ikmin < Ik < 1mA -40°C < T < +85°C Reverse Breakdown Voltage Change ∆Vk/∆Ik with Operating Current Range 1mA < Ik < 15mA -40°C < T < +85°C Ik = Ikmin to 1mA -40°C < T < +85°C Rka Reverse Static Impedance Ik = 1mA to 15mA -40°C < T < +85°C Kvh Long Term Stability Ik = 100µA, t = 1000hrs Ik = 100µA En Wide Band Noise 10Hz < f < 10kHz Min. Typ. Max. Unit 2.475 -25 -41 2.5 2.525 25 41 50 60 100 1 1.2 8 10 1 1.2 0.6 0.7 V 40 30 0.4 2.5 0.4 0.2 mV µA ppm/°C mV Ω 120 ppm 35 µVrms Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design. 3/8 TS822 Minimum operating current Reference voltage versus cathode current 3 15 Cathode voltage (V) Cathode current (mA) 2.5 10 5 0 T=+25°C 2 T=+85°C 1.5 T=-40°C 1 0.5 -5 0 -0.5 0 0.5 1 1.5 2 2.5 0 20 Cathode voltage (V) 40 Cathode current (µA) Reference voltage versus Temperature Testcircuit R Ik=(Vin-Vref)/R Vout=Vref Vin Cathode voltage (V) 2.56 +2% 2.54 +1% 2.52 2.5 2.48 -1% 2.46 2.44 -2% -40 -20 0 20 40 60 80 Temperature (°C) Static impedance (Rka) versus temperature Noise voltage versus Frequency 1500 0.15 0.1 0.05 0 -40 4/8 Noise voltage (nV/VHz) Static impedance (Ohms) 0.2 CL =100µF CL =10µF 1000 CL =1µF 500 CL=100nF CL=0 0 -20 0 20 40 Temperature (°C) 60 80 0.1 1000.0 10.0 1.0 100.0 Frequency (KHz) TS822 Pulse response for Ik=100µA 5 Test circuit for pulse response at Ik=100µA 25k ohm Input Intput Pulse Generator Output Ik=100µA 0 2.5 Output 0 0 5 10 15 20 Time (µs) Pulse response for Ik=100µA Detailed part Pulse response for Ik=100µA Detailed part 5V Input 5V Input 0V 2.5V Output 0V 2.5V Output 0V 0V 0 0.5 1 Time (µs) 1.5 2 0 1 2 3 Time (µs) 4 5 Pulse response for Ik=1mA 5V Input Test circuit for pulse response at Ik=1mA 2.5k ohm Output Pulse Generator Intput Ik=1mA 0V 2.5V Output 0V 0 1 2 3 4 5 Time (µs) 5/8 TS822 Pulse response for Ik=1mA Detailed part Pulse response for Ik=1mA Detailed part 5V 5V Input Input 0V 2.5V 0V 2.5V Output Output 0V 0V 0 50 100 Time (ns) 6/8 150 200 0 0.2 0.4 0.6 Time (µs) 0.8 1 TS822 PACKAGE MECHANICAL DATA 3 PINS - PLASTIC PACKAGE TO-92 Millimeters Inches Dim. Min L B O1 C K O2 a 3.2 4.45 4.58 12.7 0.407 0.35 Typ. Max. Min. 1.27 3.7 5.00 5.03 4.2 5.2 5.33 0.5 0.508 0.126 0.1752 0.1803 0.5 0.016 0.0138 Typ. Max. 0.05 0.1457 0.1969 0.198 0.1654 0.2047 0.2098 0.0197 0.02 7/8 TS822 PACKAGE MECHANICAL DATA 3 PINS - TINY PACKAGE (SOT-23) A E e D e1 B S A1 L H c Millimeters Inches Dim. Min. A B C D E F G H L M N O 0.85 0.65 1.20 2.80 0.95 1.9 2.1 0.38 0.3 0 0.3 0.09 Typ. Max. Min. 1.1 0.95 1.4 3 1.05 2.05 2.5 0.48 0.6 0.1 0.65 0.17 33.4 25.6 47.2 110.2 37.4 74.8 82.6 14.9 11.8 0 11.8 2.5 Typ. Max.> 43.3 37.4 55.1 118 41.3 80.7 98.4 18.8 23.6 3.9 25.6 6.7 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibil ity for the consequences of use of such information nor for any infring ement of patents or other righ ts of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change witho ut notice. This publ ication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life suppo rt devices or systems withou t express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 2000 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom http://www. st.com 8/8