TSM1121ID STMicroelectronics, TSM1121ID Datasheet
TSM1121ID
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TSM1121ID Summary of contents
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Over voltage protection for 3.3V 5V and 12V without external components Under voltage protection for 3.3V 5V and 12V without external components Over voltage protection for -12V or -5V with external components Externally adjustable under voltage blanking during power up ...
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TSM1121 1 PIN DESCRIPTION Name Pin # Type Vcc 14 Power Supply Gnd 7 Power Supply Analog Input Vs12 3 Analog Input Vs5 2 Analog Input Vs33 1 Tuv 6 Timing Capacitor Fault 13 Open Collector PI 5 Analog Input ...
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Electrical Characteristics 2 ELECTRICAL CHARACTERISTICS Tamb = 25°C and Vcc = 17V (unless otherwise specified) Symbol Parameter Total Current Consumption Icc Total Supply Current Over Voltage Sense 3.3V Vov33 Over Voltage Sense 5V Vov5 Over Voltage Sense12V Vov12 Vuv33 Under ...
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TSM1121 Fig. 1: Application Schematic PRIMARY ~ RECT. Fig. 2: Internal Schematic 12V TO 5V POWER 3.3V SUPPLY OUTPUT 12V FROM 5V MAIN 3.3V CONV. 4/11 12V MAIN CONV. 5V 3.3V PWM + OPTO + Vref AUX. Vcc CONV. 5Vstby ...
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Electrical Characteristics Fig. 3: Detailed Internal Schematic VS12 3 Vov12 Vref Vuv12 VS5 2 Vov5 Vref Vuv5 VS33 1 Vov33 Vref Vuv33 EP VovEP 4 1.25V Vref VREF 8 Vcc 14 OVP Tfault UVP Trem 1.28V TSM1121 ...
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Principle of Operation and Application Hints TSM1121: Housekeeping IC. TSM1121 is a one chip solution for all PC SMPS: it integrates on one chip the Housekeeping Circuitry (Over Voltage and Under Voltage protections, with adequate sequencing). Triple Power Line Protection ...
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Application Information 3 APPLICATION INFORMATION 1 - Rem On/Off Vcc Gnd Vs5 EP&PI=Vref Rem TRem Fault Trem Tuv Tpg Tpg & Vs5 On/Off Vcc Gnd Vs5 Pi Rem TRem Trem Fault Tuv Tpg Pg TSM1121 Tpg ...
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TSM1121 3 - OVP Rem On/Off, Tuv start up OK Vcc Gnd Ovp level Vs5 Uvp level EP&PI=Vref Gnd Rem TRem Tfault TRem Fault Tuv Tpg Pg 8/ OVP Rem On/Off, Tuv start up NOK Vcc Gnd Vs5 ...
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Application Information Truth Table for OVP and UVP detection EP PI Vref Vref Vref Vref Vref Vref OVP on Vsxx Vref Vref Vref Vref Vref Vref Vref <1.28V Vref Vref <1.28V Vref Vref Vref Vref Vref Vref Vref Vsxx Rem ...
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TSM1121 4 PACKAGE MECHANICAL DATA DIM. MIN. a1 0. 1.27 10/11 Plastic DIP-14 MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 ...
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... 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 ...