TS431ACS RLG Taiwan Semiconductor

TS431 Taiwan Semiconductor 2.495V Programmable Shunt Voltage Reference GENERAL DESCRIPTION FEATURES TS431 series integrated circuits are three-terminal Precision Reference Voltage programmable shunt regulator diodes. These monolithic TS431A 2.495V 1% IC voltage references operate as a low temperature TS431B 2.495V 0.5% coefficient zener which is programmable from VREF to 36 Equivalent Full Range Temp. Coefficient: volts with two external resistors. These devices exhibit a 50ppm/C wide operating current range of 0.3 to 100mA with a Programmable Output Voltage up to 36V typical dynamic impedance of 0.22 . Fast Turn-On Response The characteristics of these references make them Sink Current Capability of 1~100mA excellent replacements for zener diodes in many Low Dynamic Output Impedance: 0.2 applications such as digital voltmeters, power supplies, Low Output Noise RoHS Compliant and op amp circuitry. The 2.495V reference makes it Halogen-free according to IEC 61249-2-21 convenient to obtain a stable reference from 5.0V logic supplies, and since The TS431 series operates as a APPLICATION shunt regulator, it can be used as either a positive or SMPS negative stage reference. Lighting Telecommunication Home appliance SOT-23 Pin Definition: SOP-8 Pin Definition 1. Reference 1. Cathode 5. N/C 2. Cathode 2. Anode 6. Anode 3. Anode 3. Anode 7. Anode 4. N/C 8. Reference Notes: MSL 3 (Moisture Sensitivity Level) per J-STD-020 TYPICAL APPLICATIN CIRCUIT 1 Version: I2104 TS431 Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL LIMIT UNIT (Note) Cathode Voltage V 37 KA V Continuous Cathode Current Range IK -100 ~ +150 mA Reference Input Current Range I -0.05 ~ +10 REF mA SOT-23 0.30 Power Dissipation PD W SOP-8 0.50 Junction Temperature T +150 J C Operating Temperature Range TOPER -40 ~ +85 C Storage Temperature Range T -65 ~ +150 STG C RECOMMEND OPERATING CONDITION PARAMETER SYMBOL LIMIT UNIT Cathode Voltage V V ~ 36 V KA REF Continuous Cathode Current Range IK 1 ~ 100 mA ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS SYMBOL MIN TYP MAX UNIT 2.470 2.520 TS431A Reference voltage VREF 2.495 V 2.483 2.507 TS431B Deviation of reference V = V , I =10mA KA REF K 8 17 VREF -- mV T = full range A input voltage Radio of change in Vref to I =10mA, KA -- -1.4 -2.7 VREF VKA = 10V to VREF change in cathode Voltage mV/V /V KA -- -1 -2 VKA = 36V to 10V R1=10k, R2= , I 0.7 4 Reference Input current REF -- A R1=10k, R2= , Deviation of reference IKA =10mA IREF 0.4 1.2 -- A input current, over temp. TA= full range V =0V I (off) 1 Off-state Cathode Current REF KA -- -- A Minimum operating VKA = VREF IKA(min) 0.4 0.6 -- mA cathode current Dynamic Output f<1kHz, VKA = VREF ZKA -- 0.22 0.5 I =1mA to 100mA KA Impedance Note: Voltage values are with respect to the anode terminal unless otherwise noted. 2 Version: I2104