TS432 STMICROELECTRONICS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 7

Technical content

■ 1.24V TYP OUTPUT VOLTAGE ■ ULTRA LOW OPERATING CURRENT : 60µA maximum at 25°C ■ HIGH PRECISION @ 25°C +/- 1% +/- 0.5% ■ HIGH STABILITY WHEN USED WITH CAPACITIVE LOADS ■ INDUSTRIAL TEMPERATURE RANGE: -40 to +85°C ■ 100ppm/°C TEMPERATURE COEFFICIENT

DESCRIPTION

The TS432 is an adjustable low power shunt voltage reference providing an output voltage from 1.24V to 10V over the industrial temperature range (-40 to +85°C). Available 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 TS432 is very stable and can be used in a broad range of application conditions. APPLICATION ■ Computers ■ Instrumentation ■ Battery chargers ■ Switch Mode Power Supply ■ Battery operated equipments ORDER CODE LT = Tiny Package (SOT23-3) - only available in Tape & Reel (LT) PIN CONNECTIONS (top view) Precision SOT23-3 SOT23 Marking 1% TS432ILT L235 0.5% TS432AILT L236 Single temperature range: -40 to +85°C L SOT23-3L (Plastic Micropackage) SOT23-3 K Cathode Ref Reference A Anode TS432 1.24V ADJUSTABLE SHUNT VOLTAGE REFERENCE December 2002

ELECTRICAL CHARACTERISTICS

Tamb = 25°C (unless otherwise specified) Symbol Parameter Value Unit VK Cathode voltage 12 V IK Cathode current -10 to +20 mA IREF Reference input current -0.05 to +3 mA PD Power dissipation 1) SOT23-3 340 mW R THJA Thermal resistance junction to ambient for SOT23-3 360 °C/W TLEAD Lead temperature (soldering 10 seconds) 250 °C TSTG Storage temperature -65 to +150 °C TJ Junction temperature 150 °C ESD Human Body Model (HBM) 1.5 kV Machine Model (MM) 150 V 1. Pd has been calculated with Tamb = 25°C, Tj = 150°C and Rthja = 360°C/W for the SOT23-3L package Symbol Parameter Value Unit VK Cathode voltage 1.24 to 10 V IK Cathode current 60µ to 12m A TAMB Ambient temperature -40 to +85 °C Symbol Parameter Test Condition Min. Typ. Max. Unit VREF Reference voltage IK = 100µA, VK=VREF 1.24 VTS432 (1%) 1.228 1.252 TS432A (0.5%) 1.234 1.246 Δ VREF Reference voltage tolerance over temperature IK = 100µA, VK=VREF 71 6 m V IKMIN Minimum operating current Tamb = 25°C 40 60 µA-40°C < TAMB < +85°C 65 ΔVREF Reverse breakdown voltage change with operating current range IKMIN < IK < 1mA 0.7 1.5 mV -40°C < TAMB < +85°C 2 1mA < IK < 12mA 24 -40°C < TAMB < +85°C 6 ΔVREF / Δ VK Reference voltage change with output voltage change IK = 10mA, VK=10V to VREF 1.8 2.5 mV/V-40°C < TAMB < +85°C 3 IREF Reference input current IK=10mA, R1=10K Ω, R 2=+ 50 100 nA-40°C < TAMB < +85°C 200 IOFF Off-state cathode current VREF =0, VK=10V 1 100 nA-40°C < TAMB < +85°C 150 R KA Static impedance ΔIK = 100µA to 12mA 0.25 0.5 Ω KVH Long term stability IK = 100µA, t = 1000hrs 120 ppm EN Wide band noise IK = 100µA 100Hz < F < 10kHz 200 nV/ √Hz Note : Limits are 100% production tested at 25°C. Limits over temperature are guaranteed through correlation and by design.

Reference voltage vs temperature Cathode voltage vs cathode current Reference input current vs temperature Test circuit for V K = VREF Cathode voltage vs cathode current Static impedance vs temperature -40 0 40 80 120 1.228 1.232 1.236 1.240 1.244 1.248 1.252 VK = VREF IK = 100µA Reference Voltage (V) Temperature (°C) -10 VK = VREF TAMB = +25°C IK Cathode current (mA) VK Cathode voltage (V) -40 0 40 80 120 100 IK = 10 mA R 1 = 10 KΩ R 2 = + ∞ IREF Reference current (nA) Temperature (°C) Input VK VREF Ik Output 02 0 4 0 6 0 0.0 0.5 1.0 1.5 TAMB =+125°C TAMB =+85°C TAMB =+25°C TAMB =-40°C VK Cathode voltage (V) IK Cathode current (µA) -40 0 40 80 120 0.0 0.1 0.2 0.3 0.4 VK = VREF IK = 100 µA to 12 mA R KA Static impedance (Ohms) Temperature (°C)

Off-State current vs temperature Ratio of change in reference input voltage to change in VK voltage vs temperature Phase and Gain vs frequency Test circuit for Off-State current measurement Test circuit for VKA > VREF Test circuit for phase and gain measurement -40 0 40 80 120 100 150 VREF = 0 V VK = 10 V IOFF Off-State current (nA) Temperature (°C) -40 0 40 80 120 IK = 10 mA VK = 10V to VREF Ratio of change in Reference input voltage (mV/V) Temperature (°C) 120 180 TAMB = +25°C Phase Gain Gain (dB) Frequency (Hz) Phase (Degree) Input VK =10V IOFF Input IK V K = VREF . (1+R1/R2) + IREF . R1 V K IREF V REF Input Output 1 µF 22 µF 33 kΩ 33 kΩ 23.5 kΩ

Test circuit for pulse response at IK =100 µA Pulse response at IK = 100 µA Pulse response at IK = 100 µA Test circuit for pulse response at IK = 1 mA Pulse response at IK = 1mA Pulse response at IK = 1mA IK = 100µA Output 18KΩ Pulse Generator f=10KHz Intput 0 5 10 15 Output Input IK = 100 µA TAMB = + 25°C Input and Ouput signals (Volt) Time (µs) 0 5 10 15 20 Output Input IK = 100 µA TAMB = + 25°C Input and Output signals (Volt) Time (µs) IK=1mA Output 1.8KΩ Pulse Generator f=10KHz Intput 0 5 10 15 20 Output Input IK = 1 mA TAMB = + 25°C Input and Output signals (Volt) Time (µs) -5 0 5 10 15 20 Output Input IK = 1 mA TAMB = + 25°C Input and Output signals (Volt) Time (µs)

Equivalent input noise vs frequency Block diagram 100 200 300 TAMB = + 25°C Noise (nV/√Hz) Frequency (Hz) +Vref Cathode 1.24V Anode

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

2002 STMicroelectronics - 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 PACKAGE MECHANICAL DATA

3 PINS - TINY PACKAGE (SOT23)

Dim. Millimeters Inches A 0.890 1.120 0.035 0.044 A1 0.010 0.100 0.0004 0.004 b 0.300 0.500 0.012 0.020 c 0.080 0.200 0.003 0.008 E 2.100 2.640 0.083 0.104 e 0.950 0.037 e1 1.900 0.075 L1 0.540 0.021 k 0° 8° B E S e A D c L H