TSM112CD

TSM112 3.3V 5V 12V HOUSEKEEPING IC ■ 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 POWER GOOD INPUT/OUTPUT EXTERNALLY ADJUSTABLE PG DELAY FAULT OUTPUT REMOTE OUTPUT EXTERNALLY ADJUSTABLE REMOTE DELAY PRECISION VOLTAGE REFERENCE 2kV ESD PROTECTION DESCRIPTION t c u d ) o r s ( t P c e u t d e l o r o s P b e t O e l o s b O ■ PC SMPS Triple Power Line Housekeeping IC (3.3V 5V 12V) ORDER CODE Part Number Temperature Range TSM112CN TSM112CD 0 to 85°C 0 to 85°C Package Marking N e t le o s b o r P ) s t( D SO14 (Plastic Micropackage) c u d o r P e et PIN CONNECTIONS (top view) l o bs -O APPLICATION c u d N DIP14 (Plastic Package) -O 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. (s) ) s t( VS33 1 14 VCC VS5 2 13 FAULT VS12 3 12 PG EP 4 11 TPG PI 5 10 TREM TUV 6 9 REM GND 7 8 VREF D • • TSM112C M112 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 Pin # Type Function Vcc Gnd Vs12 14 7 3 Power Supply Power Supply Analog Input Over and Under voltage Sense Input Dedicated to the 12V Line1) Vs5 2 Analog Input Over and Under voltage Sense Input Dedicated to the 5V Line1) Vs33 1 Analog Input Positive Power Supply Line Ground Line. 0V Reference For All Voltages 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 ) s t( c u d e t le o s b ABSOLUTE MAXIMUM RATINGS Symbol Vcc Iout Io VFault Top Pd Tstg ESD Tuv EP PI PG Tpg REM Trem -O DC Supply Voltage ) s ( ct 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 O u d ) o r s ( t P c e u t d e l o r o s P b e t O e l o s b O l o bs o r P ) s t( c u d o r P e et Value Unit 25 V 30 20 5 -55 to 125 0.7 -55 to 150 2 5 5 5 5 5 5 5 mA mA V °C W °C kV V V V V V V V Value Unit 4.5 to 24 0 to 85 V °C 1. All voltage values, except differential voltage are with respect to network ground terminal. OPERATING CONDITIONS Symbol Vcc Toper 2/7 Parameter DC Supply Conditions Operating Free Air Temperature Range TSM112 ELECTRICAL CHARACTERISTICS Tamb = 25°C and Vcc = 17V (unless otherwise Symbol Parameter specified) Test Condition Min Typ Max Unit 3 5 mA 3.8 4 4.2 V 5.8 6.1 6.4 V 13.4 14.2 15 V 2.1 3.7 9.2 2.3 4 10 1.28 100 2.5 4.3 10.8 300 500 Total Current Consumption Icc Total Supply Current Over Voltage and Under Voltage Protection Vov33 Over Voltage Sense 3.3V Input can go higher than Vcc Input can go higher than Vcc Input can go higher than Vcc Vov5 Over Voltage Sense 5V Vov12 Over Voltage Sense12V Vuv33 Vuv5 Vuv12 Vep Tfault Under Voltage Sense 3.3V Under Voltage Sense 5V Under Voltage Sense 12V Extra Over voltage Protection Threshold Fault Delay Before Latching Internally Fixed Delay Tuv Thuv Under Voltage Blanking During Power Up (Vcc rising) Cuv = 2.2µF Adjustable Blanking eP 100 t e l o Blanking Threshold t c u d o r Under Voltage Blanking During Power Up ) s ( ct -O u d ) o r s ( t P c e u t d e l o r o s P b e t O e l o s b O Vfaultol Ifaultoh Fault Output Saturation Voltage Level Fault Output Leakage Current Level Vremth Vremih Iremil Trem1 Remote ON/OFF Input Voltage Threshold High Input Remote Voltage Low Input Remote Saturation Current Remote Adjustable Delay ON to OFF Trem2 Remote Adjustable Delay OFF to ON bs l o bs P e et 1.28 1.28 70 Collector Current = 15mA PG Output = 5V -O Load Capacitor = 100pF Load Capacitor = 100pF Load Capacitor Cpg=2.2µF 100 1 1 300 1.28 V V V V µs ) s t( c u d o r 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 ) s ( ms V V mV 0.4 V 1 µA 500 µs µs ms V Fault IFault = 1mA Vfault = 5V 1 1 V µA Remote Control (REM) Load Capacitor Crem=0.1µF Load Capacitor Crem=0.1µF 0.7 0.8 3.3 3.4 1 V V mA ms 40 50 0.5 60 40 50 60 ms 2.46 2.5 4 2.54 10 V mV Voltage Reference Vref Regline Internal Voltage Reference Line regulation Regline Line regulation Regload Load regulation 1) Io = 0mA Io = 0mA 4.5V