TS432xIX Taiwan Semiconductor 1.24V Programmable Shunt Voltage Reference DESCRIPTION FEATURES The TS432AIX and TS432BIX is a three-terminal Precision Reference Voltage adjustable shunt regulator with specified thermal TS432AI 1.24V1% stability. The output voltage may be set to any value TS432BI 1.24V0.5% between V (approximately 1.24V) and 18V with two Minimum cathode current: 20A(typ.) REF external resistors. The TS432AIX and TS432BIX has a Equivalent full range Temp. coefficient: 50ppm/C typical output impedance of 0.05. Active output Programmable output voltage up to 18V circuitry provides a very sharp turn-on characteristic, Fast turn-on response making the TS432AIX and TS432BIX excellent Sink current capability of 80A to 100mA replacement for zener diode in many applications. Low dynamic output impedance: 0.2 Low output noise Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC Halogen-free according to IEC 61249-2-21 APPLICATION SMPS Lighting Telecommunication Home appliance SOT-23 Pin Definition: 1. Reference 2. Cathode 3. Anode Notes: MSL 1 (Moisture Sensitivity Level) per J-STD-020 SIMPLIFIED SCHEMATIC 1 Version: E1811 TS432xIX Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (T = 25C unless otherwise noted) A PARAMETER SYMBOL LIMIT UNIT 18 Cathode Voltage V V KA 100 Continuous Cathode Current I mA K 3 Reference Input Current I mA REF Power Dissipation P 0.35 W D o Junction Temperature T +150 C J o Operation Temperature Range T -40 ~ +105 C OPER o Storage Temperature Range T -65 ~ +150 C STG Note: 1: Voltage values are with respect to the anode terminal unless otherwise noted. o 2: Rating apply to ambient temperature at 25 C RECOMMEND OPERATING CONDITION PARAMETER SYMBOL LIMIT UNIT Cathode Voltage (Note 1) V 18 V KA Continuous Cathode Current Range I 100 mA K o ELECTRICAL SPECIFICATIONS (T =+25 C, unless otherwise specified) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT TS432AI 1.227 1.252 V =V , I =10mA KA REF K Reference voltage V 1.24 V REF (Figure 1) 1.233 1.246 TS432BI (Figure 1) Deviation of reference input V =V , I =10mA KA REF K -- 10 25 mV V REF voltage T =full range A Radio of change in Vref to V I =10mA, V =18V to V REF KA KA REF -- -1.0 -2.7 mV/V (Figure 2) change in cathode Voltage /V KA R1=10k, R2= Reference Input current I -- 0.25 0.5 A REF (Figure 2) I =10mA KA Deviation of reference input R1=10k, R2= , I =10mA KA 0.04 0.08 A I -- REF (Figure 2) current, over temp. T = full range A (Figure 3) Off-state Cathode Current I V =0V , V =18V -- 0.125 0.5 A KA(off) REF KA (Figure 1) f<1kHz, V =V KA REF Dynamic Output Impedance Z -- 0.2 0.4 KA I =1mA to 100mA KA Minimum operating cathode (Figure 1) I (min) V =V -- 60 80 A KA KA REF current Note: The deviation parameters VREF and IREF are defined as difference between the maximum value and minimum value obtained over the full operating ambient temperature range that applied. 2 Version: E1811