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TSM115 Datasheet(PDF) 2 Page - STMicroelectronics |
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TSM115 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 17 page TSM115 Pin Description 2/17 1 Pin Description ABSOLUTE MAXIMUM RATINGS OPERATING CONDITIONS Name Pin # Type Function Fault 1 Open collector Fault output. Output of the over voltage and under voltage comparators. Gnd 2 Power supply Signal ground and silicon substrate PG 4 Open collector Output of the Tpg comparator. This pin goes low upon an under voltage condition. Except for the delay set by the Tpg capacitor this pin always reflects the actual state of the under voltage sensing comparators output. Tuv/Tpg 5 Timing capacitor A capacitor from this pin to Gnd provides a delay between outputs rail volt- age within regulation and PG output going high. Capacitor discharges whenever Bsense low or Rem high or UVP is detected. This capacitor will also provide the under voltage blanking function when the voltage at this pin is larger than the Vref voltage. The under voltage function resume. Rem 6 Control Input pin Pulling this pin high will send the Fault pin high latching off the power sup- ply, reset the internal latch, discharge the start-up timing capacitors, Tuv and Tpg capacitors, allowing normal start up of the system. Pulling this pin low will send the Fault pin low, initiating a normal start up function. Trem/Tsur 7 Timing capacitor A capacitor from this pin to Gnd will delay the Fault signal when the Rem pin is used to shut down the power supply. The PG will signal a power fail- ure warming immediately, but the Fault pin shut down of the power will be delayed. This capacitor will also provide the overcurrent blanking function (surge current). Bsense 9 Control input pin Non inverting input to the Bsense voltage sensing comparator. Pulling this pin lower than 2.5V will cause PG goes low and Tuv goes low. Vs5 10 Analog input Over voltage and under voltage detection for +5V rail Is5 11 Analog Input 5V overcurrent control sense input. Vs12a 12 Analog input Over voltage and under voltage detection for +12V rail Vs12b 13 Analog input Over voltage and under voltage detection for +12V rail Vs-12 14 Analog input Over voltage and under voltage detection for -12V rail. Is12 15 Analog Input 12V overcurrent control sense input. Vs3.3 16 Analog input Over voltage and under voltage detection for 3.3V rail. Is3.3 17 Analog Input 3.3V overcurrent control sense input. Rcrnt 19 Analog input A resistor from this pin to Gnd will provide the internal constant current. Vcc 20 Power supply Supply input voltage Symbol DC Supply Voltage Value Unit Vcc DC Supply Voltage 1 -0.3 to 18 V Vpmax Terminal voltage Vs3.3, Is3.3, Vs12, Is12, Vs5, Is5 -0.3 to 18 V Vnmax Terminal voltage Vs-12 -15 to 5 V VDBTT VTpg/Tuv, VTrem/Tsur input voltage -0.3 to 3.3V V VTER Other terminals -0.3 to Vcc V PT Power dissipation 1 W Tstg Storage temperature -55 to 150 °C Tj Junction temperature 150 °C ESD Electrostatic Discharge 2 kV 1) All voltage values, except differential voltage are with respect to network ground terminal. Symbol Parameter Value Unit Vcc DC Supply Conditions 3 to 15 V Toper Temperature range 0 to 95 °C |
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