TSM112N

TSM112 3.3V 5V 12V HOUSEKEEPING IC s OVER VOLTAGE PROTECTION FOR 3.3V s s s s s s s s s s 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 POWER GOOD INPUT/OUTPUT EXTERNALLY ADJUSTABLE PG DELAY FAULT OUTPUT REMOTE OUTPUT EXTERNALLY ADJUSTABLE REMOTE DELAY PRECISION VOLTAGE REFERENCE 2kV ESD PROTECTION N DIP14 (Plastic Package) D SO14 (Plastic Micropackage) DESCRIPTION The TSM112 integrated circuit incorporates all sensing circuitry to regulate and protect from over voltage and under voltage a multiple output power supply (3.3V, 5V and 12V). TSM112 incorporates all the necessary functions for Housekeeping features which allow safe operation in all conditions, and very high system integration. TSM112 integrates a precise voltage reference. APPLICATION PIN CONNECTIONS (top view) VS33 VS5 VS12 EP PI TUV 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC FAULT PG TPG TREM REM VREF s PC SMPS Triple Power Line Housekeeping IC (3.3V 5V 12V) ORDER CODE Part Number TSM112CN TSM112CD Temperature Range 0 to 85°C 0 to 85°C Package Marking N • • D TSM112C M112 GND N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) January 2001 1/7 TSM112 PIN DESCRIPTION Name Vcc Gnd Vs12 Vs5 Vs33 Pin # 14 7 3 2 1 Type Power Supply Power Supply Analog Input Analog Input Analog Input Function Positive Power Supply Line Ground Line. 0V Reference For All Voltages Over and Under voltage Sense Input Dedicated to the 12V Line1) Over and Under voltage Sense Input Dedicated to the 5V Line1) Over and Under voltage Sense Input Dedicated to the 3.3V Line1) Tuv 6 Timing Capacitor Adjustable Under voltage Blanking Delay at Power Up (Setting Capacitor) Fault 13 Open Collector Fault Output. Fault is high when Over or Under Voltage has been Detected PI 5 Analog Input Power Good Input. Detection of the Power Conditions PG 12 Open Collector Power Good Output. PG output is High when the Power Conditions are OK Tpg 11 Timing Capacitor Adjustable Power Good Delay (Setting Capacitor) REM 9 Logic Input Input Remote Control of the Complete System by the Motherboard (µController). Remote is active high. Switch OFF/ON of the Power Supply. Reset of the Complete System after a FAULT Activation. Trem 10 Timing Capacitor Adjustable Remote Delay (Setting Capacitor). Vref 8 Voltage Reference 2.5V Reference for all Voltages EP 4 Analog Input Extra Protection Circuit. Can be used for -12V or -5V Over Voltage Protection. 1. Over and Under Voltage Inputs can go higher than Vcc within the allowed Max Rating range ABSOLUTE MAXIMUM RATINGS Symbol Vcc Iout Io VFault Top Pd Tstg ESD Tuv EP PI PG Tpg REM Trem DC Supply Voltage DC Supply Voltage 1) Output Current Power Good Output current for the Voltage reference Fault Ouput Operating Free Air Temperature Range Power Dissipation Storage Temperature Electrostatic Discharge Adjustable Under voltage Blanking At Power UP Extra Protection Power Good Input Power Good Output Adjustable Power Good Delay Remote Control Adjustable Remote Delay Value 25 30 20 5 -55 to 125 0.7 -55 to 150 2 5 5 5 5 5 5 5 Unit V mA mA V °C W °C kV V V V V V V V 1. All voltage values, except differential voltage are with respect to network ground terminal. OPERATING CONDITIONS Symbol Vcc Toper Parameter DC Supply Conditions Operating Free Air Temperature Range Value 4.5 to 24 0 to 85 Unit V °C 2/7 TSM112 ELECTRICAL CHARACTERISTICS Tamb = 25°C and Vcc = 17V (unless otherwise Symbol Parameter specified) Test Condition Min Typ Max Unit Total Current Consumption Icc Vov33 Vov5 Vov12 Vuv33 Vuv5 Vuv12 Vep Tfault Tuv Thuv Total Supply Current Over Voltage and Under Voltage Protection Over Voltage Sense 3.3V Over Voltage Sense 5V Over Voltage Sense12V Input can go higher than Vcc Input can go higher than Vcc Input can go higher than Vcc 3.8 5.8 13.4 2.1 3.7 9.2 4 6.1 14.2 2.3 4 10 1.28 100 300 1.28 Power Good (PG) Vpgth Power Good Voltage Threshold Vpghyst Power Good Voltage Threshold Hysteresis Vpgol Low Output Open Collector Saturation Voltage Ipgoh High Output Open Collector Leakage Current Tpgr Power Good Output Rise Time Tpgf Power Good Output Fall Time Tpg Power Good Adjustable Delay PIth Power Input Detection Threshold Vfaultol Ifaultoh Vremth Vremih Iremil Trem1 Trem2 Fault Output Saturation Voltage Level Fault Output Leakage Current Level Remote ON/OFF Input Voltage Threshold High Input Remote Voltage Low Input Remote Saturation Current Remote Adjustable Delay ON to OFF Remote Adjustable Delay OFF to ON 1.28 70 Collector Current = 15mA PG Output = 5V Load Capacitor = 100pF Load Capacitor = 100pF Load Capacitor Cpg=2.2µF Fault IFault = 1mA Vfault = 5V 0.7 3.3 Load Capacitor Crem=0.1µF Load Capacitor Crem=0.1µF Voltage Reference Vref Regline Regline Internal Voltage Reference Line regulation Line regulation Io = 0mA Io = 0mA 4.5V