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| TS824-2.5 HIGH THERMAL STABILITY MICROPOWER SHUNT VOLTAGE REFERENCE s LOW Tc: 50 ppm/C MAXIMUM s 2.5V OUTPUT VOLTAGE s LOW OPERATING CURRENT: 60A max @ 25C s HIGH PRECISION AT 25C: 0.5% AND 1% s STABLE WHEN USED WITH CAPACITIVE LOADS s INDUSTRIAL TEMPERATURE RANGE: -40 to +85C DESCRIPTION The TS824-2.5 is a low power shunt voltage reference featuring a very low temperature coefficient of 50ppm/C as a maximum value. Providing a 2.5V output voltage, the TS824-2.5 operates over the industrial temperature range (-40 to +85C). Ideal for battery-powered equipments where power conservation is critical, the TS824 is housed in a tiny SOT23-3 package allowing space saving. The TS824 is typically stable with any capacitive loads within the entire temperature range. The product is thus easy to use and the design simplified. APPLICATION L SOT23-3L (Plastic Micropackage) PIN CONNECTIONS (top view) s s s s Instrumentation, Data acquisition systems, Portable, Battery powered equipments Power management ORDER CODE Voltage 2.5V Precision SOT23-3 SOT23 Marking L252 L253 1% TS824ILT-2.5 0.5% TS824AILT-2.5 Single temperature range: -40 to +85C LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT) March 2002 1/5 TS824-2.5 ABSOLUTE MAXIMUM RATINGS Symbol IK IF PD TStd ESD TLead Parameter Reverse Breakdown Current Forward Current Power Dissipation (note1) Storage Temperature Human Body Model (HBM) (note2) Machine Model (MM) (note 2) Lead Temperature (soldering, 10 seconds) SOT23-3 Value 20 10 360 -65 to +150 2 200 260 Unit mA mA mW C kV V C Note 1: The maximum power dissipation must be derated at high temperature. It can be calculated using TJMAX (maximum junction temperature), RTHJA (Thermal resistance junction to ambient) and T A (Ambient temperature). The maximum power dissipation formula at any temperature is P DMAX= (TJMAX - TA) / RTHJA. RTHJA is 340C/W for the SOT23-3 package. Note 2: The Human Body Model (HBM) is defined as a 100pF capacitor discharge through a 1.5k resistor into each pin. The Machine Mode (MM) is defined as a 200pF capacitor discharge directly into each pins. OPERATING CONDITIONS Symbol Imin Imax Toper Minimum Operating Current Maximum Operating Current Operating Free Air Temperature Range Parameter Value 60 15 -40 to +85 Unit A mA C ELECTRICAL CHARACTERISTICS (note 3) Tamb = 25C (unless otherwise specified) Symbol Parameter Reverse Breakdown Voltage VK Reverse Breakdown Voltage Tolerance Test Condition IK = 100A, 0.5% IK = 100A, 1% IK = 100A, 0.5% -40C < Tamb < +85C IK = 100A, 1% -40C < Tamb < +85C Tamb = 25C -40C < Tamb < +85C IK = 100A IKMIN < IK < 1mA -40C < Tamb < +85C 1mA < IK < 15mA -40C < Tamb < +85C IK = IKMIN to 1mA -40C < Tamb < +85C IK = 1mA to 15mA -40C < Tamb < +85C IK = 100A, t = 1000hrs IK = 100A 100Hz < f < 10kHz 0.4 4.5 0.4 0.3 120 350 Min. 2.475 -12.5 -20 -25 -33 50 Typ. 2.500 Max. 2.525 +12.5 +20 +25 +33 60 65 50 1 1.2 8 10 1 1.2 0.6 0.7 Unit V 2.4875 2.500 2.5125 mV IKMIN VK /T Minimum Operating Current Average Temperature Coefficient (note 5) Reverse Breakdown Voltage Change with Operating Current Range A ppm/C VK /IK mV RKA Static Impedance KVH EN Long Term Stability Wide Band Noise ppm nV/Hz Note 3: Limits are 100% production tested at 25C. Limits over temperature are guaranteed through correlation and by design. Note 4: The total tolerance within the industrial range, where the maximum T versus 25C is 65C, is explained hereafter: 1 % + ( 50 ppm/C x 65C) = 1.325 % 2/5 TS824-2.5 Reference voltage versus cathode current 3 Reference voltage versus cathode current 3 T=-40C 2 T=+25C 2 1 Cathode voltage (V) Cathode voltage(V) T=+85C 1 0 -1 -10 0 -5 0 5 10 15 0 20 40 60 80 100 Cathode current (mA) Cathode current (A) Test circuit Reference voltage versus Temperature 2.52 R Reference voltage (V) i=0 IK=(VIN-VREF)/R VOUT=VREF 2.51 2.50 VIN 2.49 2.48 -40 -20 0 20 40 60 80 Temperature (C) VK/IK for IK < 1mA versus temperature 0.5 VK / IK IK MIN < IK < 1 mA VK/IK for IK > 1mA versus temperature 5 0.4 VK / IK (mV) 4 VK / IK (mV) 0.3 3 VK / IK 1 mA < IK < 15 mA 0.2 2 0.1 1 0.0 -40 -20 0 20 40 60 80 0 -40 -20 0 20 40 60 80 Temperature (C) Temperature (C) 3/5 TS824-2.5 Start-up response with low cathode current Start-up schematic with low cathode current 5 4 R Overshoot Voltage (V) Ik 3 2 1 0 0 5 10 15 20 Time (s) Overshoot versus cathode current 20 T=+25C Noise versus frequency 500 TAMB= +25C IK= 100A 400 % of final value Noise (nV/ Hz) 15 300 10 200 5 100 0 100 150 200 250 300 0 100 1k 10k 100k Cathode current (A) Frequency (Hz) 4/5 Output Intput Pulse Generator TS824-2.5 PACKAGE MECHANICAL DATA 3 PINS - TINY PACKAGE (SOT23-3) D e GAUGE PLANE 0.25 k L E1 E b c e1 C A2 Millimeters Dimensions Min. A A1 A2 b c D E E1 e e1 L L1 k 0.890 0.010 0.880 0.300 0.080 2.800 2.100 1.200 Typ. Max. 1.120 0.100 1.020 0.500 0.200 3.040 2.640 1.400 Min. 0.035 0.0004 A1 A 0.10 SEATING PLANE C L1 Inches Typ. Max. 0.044 0.004 0.040 0.020 0.008 0.120 0.104 0.055 0.950 0.037 0.012 0.003 0.110 0.083 0.047 2.900 1.300 0.950 1.900 0.500 0.540 0.114 0.051 0.037 0.075 0.020 0.021 0.400 0 0.600 8 0.016 0.024 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights 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 without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States (c) http://www.st.com - United Kingdom 5/5 |
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