HIGH THERMAL STABILITY MICROPOWER SHUNT VOLTAGE REFERENCE LOW Tc: ppm/ C MAXIMUM.V OUTPUT VOLTAGE LOW OPERATING CURRENT: 6µA max @ C HIGH PRECISION AT C: ±.% AND ±% STABLE WHEN USED WITH CAPACITIVE LOADS INDUSTRIAL TEMPERATURE RANGE: -4 to +8 C DESCRIPTION The TS84-. is a low power shunt voltage reference featuring a very low temperature coefficient of ppm/ C as a maximum value. Providing a.v output voltage, the TS84-. operates over the industrial temperature range (-4 to +8 C). Ideal for battery-powered equipments where power conservation is critical, the TS84 is housed in a tiny SOT- package allowing space saving. The TS84 is typically stable with any capacitive loads within the entire temperature range. The product is thus easy to use and the design simplified. L SOT-L (Plastic Micropackage) PIN CONNECTIONS (top view) APPLICATION Instrumentation, Data acquisition systems, Portable, Battery powered equipments Power management ORDER CODE Voltage Precision SOT- SOT Marking ±% TS84ILT-. L.V ±.% TS84AILT-. L Single temperature range: -4 to +8 C LT = Tiny Package (SOT-) - only available in Tape & Reel (LT) March /
ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit I K Reverse Breakdown Current ma I F Forward Current ma P D Power Dissipation (note) SOT- 6 mw T Std Storage Temperature -6 to + C ESD Human Body Model (HBM) (note) kv Machine Model (MM) (note ) V T Lead Lead Temperature (soldering, seconds) 6 C Note : The maximum power dissipation must be derated at high temperature. It can be calculated using T JMAX (maximum junction temperature), R THJA (Thermal resistance junction to ambient) and T A (Ambient temperature). The maximum power dissipation formula at any temperature is P DMAX = (T JMAX - T A ) / R THJA. R THJA is 4 C/W for the SOT- package. Note : The Human Body Model (HBM) is defined as a pf capacitor discharge through a.kω resistor into each pin. The Machine Mode (MM) is defined as a pf capacitor discharge directly into each pins. OPERATING CONDITIONS Symbol Parameter Value Unit I min Minimum Operating Current 6 µa I max Maximum Operating Current ma T oper Operating Free Air Temperature Range -4 to +8 C ELECTRICAL CHARACTERISTICS (note ) T amb = C (unless otherwise specified) Symbol Parameter Test Condition Min. Typ. Max. Unit V K I KMIN V K / T V K / I K R KA Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance Minimum Operating Current Average Temperature Coefficient (note ) Reverse Breakdown Voltage Change with Operating Current Range Static Impedance I K = µa, ±.%.487.. I K = µa, ±%.47.. I K = µa, ±.% I K = µa, ±% -. - - - +. + + + T amb = C 6 6 V mv I K = µa ppm/ C I KMIN < I K < ma ma < I K < ma I K = I KMIN to ma I K = ma to ma.4. 4. 8.4...6.7 K VH Long Term Stability I K = µa, t = hrs ppm E N Wide Band Noise I K = µa Hz < f < khz nv/ Hz µa mv Ω Note : Limits are % production tested at C. Limits over temperature are guaranteed through correlation and by design. Note 4: The total tolerance within the industrial range, where the maximum T versus C is 6 C, is explained hereafter: ± % + (± ppm/ C x 6 C) = ±. % /
Reference voltage versus cathode current Reference voltage versus cathode current T=-4 C Cathode voltage(v) Cathode voltage (V) T=+ C T=+8 C - - - Cathode current (ma) 4 6 8 Cathode current (µa) Test circuit Reference voltage versus Temperature. VIN R i= IK=(VIN-VREF)/R VOUT=VREF Reference voltage (V)...49.48-4 - 4 6 8 V K / I K for I K < ma versus temperature V K / I K for I K > ma versus temperature..4 I K MIN < I K < ma 4 (mv).. (mv) ma < I K < ma.. -4-4 6 8-4 - 4 6 8 /
Start-up response with low cathode current Start-up schematic with low cathode current Voltage (V) 4 Overshoot Pulse Generator Intput R Ik Output Time (µs) Overshoot versus cathode current Noise versus frequency % of final value T=+ C Noise (nv/ Hz) 4 T AMB = + C I K = µa Cathode current (µa) k k k Frequency (Hz) 4/
PACKAGE MECHANICAL DATA PINS - TINY PACKAGE (SOT-) D e GAUGE PLANE. k A A A E E L L b c e SEATING PLANE. C C Millimeters Inches Dimensions Min. Typ. Max. Min. Typ. Max. A.89...44 A...4.4 A.88.9..7.4 b.... c.8...8 D.8.9.4..4. E..64.8.4 E...4.47.. e.9.7 e.9.7 L.4..6.6..4 L.4. k 8 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. The ST logo is a registered trademark of STMicroelectronics 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 http://www.st.com - United Kingdom /