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| (R) TS821 1.225V MICROPOWER VOLTAGE REFERENCE . . . . . . 1.225V TYP OUTPUT VOLTAGE ULTRA LOW OPERATING CURRENT : 40A typ. o HIGH PRECISION @ 25 C +/-2% (Standard version) +/-1% (A grade) +/-0.5% (B grade) HIGH STABILITY WHEN USED WITH CAPACITIVE LOADS o WIDE TEMPERATURE RANGE : -40 to +85 C T092 & SOT23-3 PACKAGES Z TO92 (Plastic Package) DESCRIPTION The TS821 is a micropowerintegrated circuit which is a high stability, two terminals, band gap reference providing a stable output voltage over the industrial temperature range (-40 to +85oC). The minimum operating current is guaranteed at 50A over the full operating temperature range. L SOT-23L (Plastic Micropackage) ORDER CODES . . . . . APPLICATIONS Computers Instrumentation Battery chargers Switch Mode Power Supply Battery operated equipements Precision 2% 1% 0.5% TO92 TS821IZ TS821AIZ TS821BIZ SOT23-3 TS821ILT TS821AILT TS821BILT SOT23 Marking L213 L212 L211 Single temperature range : -40 to +85 oC PIN CONNECTIONS (top view) TO92 S OT23-3 Ca thode 1 3 * Anode 1 2 3 2 NC Ca thod e Anod e * This pin must be le ft floa ting or conne cte d to pin 2 May 2000 1/7 TS821 ABSOLUTE MAXIMUM RATINGS Symbol Ik If Pd Toper Tstg Note : Parameter Reverse Breakdown Current Forward Current Power Dissipation Operating Free Air Temperature Range Storage Temperature o o Value 20 10 SOT23-3 TO92 360 625 -40 to +85 -65 to +150 Unit mA mA mW o o C C Pd has been calculated with T amb = 25 C and Tj = 125 C and o Rthja = 200 C/W for TO92 package Rthja = 340oC/W for SOT23 package OPERATING CONDITIONS Symbol Irmin Irmax Minimum Operating Current Maximum Operating Current Parameter Value 45 12 Unit A mA ELECTRICAL CHARACTERISTICS TS821 (2% Precision) o Tamb = 25 C (unless otherwise specified) Symbol Vk Parameter Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Ikmin Vref/T Vk/Ik Minimum Operating Current Average Temperature Coefficient Reverse Breakdown Voltage Change with Operating Current Change Static Impedance Long Term Stability Wideband Noise Test Condition Ik = 100A @ Tamb = 25 C Ik = o100A @ Tamb = 25oC -40 C < Tamb < +85oC Tamb = 25 C -40 C < Tamb < +85oC IK = 100A Ikmin o< Ik < 1mA @ Tamb = 25oC -40 C < Tamb < +85oC @ 1mA < Ik < 12mA o Tamb = 25oC -40oC < Tamb < +85 C Ik = 45A to 1mA IK = 100A, t = 1000hrs Tamb = 25oC IK = 100A 10Hz < f < 10kHz 0.3 2.5 0.25 120 200 o o o Min. 1.200 -25 -36 Typ. 1.225 Max. 1.250 +25 +36 Unit V mV A A ppm/oC mV mV ppm nV Hz 40 45 50 150 0.7 1 5 7 0.5 Rka Kvh en 2/7 TS821 ELECTRICAL CHARACTERISTICS TS821A (1% Precision) o Tamb = 25 C (unless otherwise specified) Symbol Vk Parameter Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Ikmin Vref/T Vk/Ik Minimum Operating Current Average Temperature Coefficient Reverse Breakdown Voltage Change with Operating Current Change Static Impedance Long Term Stability Wideband Noise Test Condition Ik = 100A @ Tamb = 25oC Ik = 100A @ Tamb = 25 C -40oC < Tamb < +85oC Tamb = 25oC -40 C < Tamb < +85 C IK = 100A Ikmin < Ik < 1mA @ Tamb = 25 C -40oC < Tamb < +85oC 1mA < Ik < 12mA @ Tamb = 25oC -40oC < Tamb < +85oC Ik = 45A to 1mA IK = 100, t = 1000hrs Tamb = 25oC IK = 100A 10Hz < f < 10kHz o o o o Min. 1.213 -12 -24 Typ. 1.225 Max. 1.237 +12 +24 Unit V mV A A ppm/oC mV mV ppm/kHr nV/ Hz 40 45 50 150 0.3 2.5 0.25 120 200 0.7 1 5 7 0.5 Rka Kvh en ELECTRICAL CHARACTERISTICS TS821B (0.5% Precision) o Tamb = 25 C (unless otherwise specified) Symbol Vk Parameter Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Ikmin Minimum Operating Current Test Condition Ik = 100A @ Tamb = 25 C Ik = o100A @ Tamb = 25 C -40 C < Tamb < +85oC Tamb = 25oC -40 C < Tamb < +85 C Vref/T Average Temperature Coefficient Vk/Ik Reverse Breakdown Voltage Change with Operating Current Change Static Impedance Long Term Stability Wideband Noise IK = 100A Ikmin < Ik < 1mA @ Tamb = 25oC -40oC < Tamb < +85oC @ 1mA < Ik < 12mA o Tamb = 25 C -40oC < Tamb < +85 C Ik = 45A to 1mA IK = 100A, t = 1000hrs o Tamb = 25 C IK = 100A 10Hz < f < 10kHz o o o o o Min. 1.219 -6 -14 Typ. 1.225 Max. 1.231 +6 +14 Unit V mV A A ppm/oC mV mV ppm nV/ Hz 40 45 50 120 0.3 2.5 0.25 120 200 0.7 1 5 7 0.5 Rka Kvh en 3/7 TS821 Reference Voltage versus Cathode Current Reference Voltage versus Cathode Current Test Circuit Reference Voltage versus Temperature Dynamic Impedance versus Temperature Noise Voltage versus Frequency 4/7 TS821 Pulse Response for Ik = 100m A Test Circuit for Pulse Response at Ik = 100m A Pulse Response for Ik = 1mA Test Circuit for Pulse Response at Ik = 1mA 5/7 TS821 PACKAGE MECHANICAL DATA 3 PINS - PLASTIC PACKAGE TO92 Dim. L B O1 C K O2 a Millimeters Min. 3.2 4.45 4.58 12.7 0.407 0.35 0.5 0.508 Typ. 1.27 3.7 5.00 5.03 4.2 5.2 5.33 0.126 0.1752 0.1803 0.5 0.016 0.0138 Max. Min. Inches Typ. 0.05 0.1457 0.1969 0.198 0.0197 0.1654 0.2047 0.2098 0.02 Max. 6/7 TS821 PACKAGE MECHANICAL DATA 3 PINS -TINY PACKAGE (SOT23) Dim. A A1 A2 b c D E E1 e e1 L L1 k Millimeters Min. 0.890 0.010 0.880 0.300 0.080 2.800 2.100 1.200 1.300 0.950 1.900 0.400 0 0.500 0.540 8 0.600 0.016 2.900 0.950 Typ. Max. 1.120 0.100 1.020 0.500 0.200 3.040 2.640 1.400 0.012 0.003 0.110 0.083 0.047 Min. 0.035 0.0004 Inches Typ. Max. 0.044 0.004 0.037 0.040 0.020 0.008 0.114 0.051 0.037 0.075 0.020 0.021 0.024 0.120 0.104 0.055 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 trademark of STMicroelectronics (c) 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 - U.S.A. (c) http://www.st.com 7/7 |
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