PS113A Version Issue Date File Name Total Pages : A.003 : 2007/03/06 : SP-PS113A-A.003.doc : 10 3-Channel Secondary Monitoring IC 新竹市科學園區展業一路 9 號 7 樓之 1 SILICON TOUCH TECHNOLOGY INC. 9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.O.C. Fax：886-3-5645626 Tel：886-3-5645656 PS113A PS113A 3-Channel Secondary Monitoring IC General Description PS113A is specially designed for switching power supply system. Three important functions of PS113A are the following: over-voltage protection, short circuit protection and power good signal generating. OVP (Over Voltage Protection) monitors 5V, 12V and 3.3V to protect our power supply and PC, when one of these supply voltages exceeds their normal operation voltage. Short circuit protection is done by UVP (Under Voltage Protection). When power supply is in short circuit, the supply voltages will be much smaller than their normal operation voltages .We can use UVP to monitor our power supply whether it is in the dangerous power load. Power good signal generating notifies personal computer when power supply is ready or power supply is going to shutdown, therefore it can provide a reliable power supply environment. Features z z z z z z z z z z z z Over voltage protection and lock out Short circuit protection and lock out Fault protection output with open drain output stage Open drain power good output signal for power good input Built-in 300ms power good delay 75ms delay for short-circuit turn on protection 38ms PSON control de-bounce 20us de-bounce for noise immunity Wide power supply range from 4V to 16V Pin to pin compatible with TPS3510 Special care for AC power off Additional 12V UVP protection Version：A.003 3-Channel Secondary Monitoring IC -1- PS113A Block Diagram FPO/ 20uS De-bounce Vcc R1 VCCI R2 S Q R 1MΩ 12 UV Vref delay VCCI 12 OV R3 H : 4mS L : 4.5uS Vref VCC 10uA VCCI PSON/ 38mS De-bounce VS5 Vref R4 4.5V VCCI R5 2KΩ 5 UV Vref VCCI 5 OV R6 VCCI delay Vref 1 0 H : 75mS L : 4.5uS 1.13V VCCI PGI VS33 0.63V R R7 VCCI R8 Q S 3.3 UV VCCI 1.25V Vref VCCI 3.3 OV R9 VCCI Vref 1MΩ PGO delay 73uS De-bounce H : 300mS L : 4.5uS Power On Reset POR Internal Power VCCI = 4V Band-Gap Reference Vref 1.25V Clock Generator CLK GND Version：A.003 3-Channel Secondary Monitoring IC -2- PS113A Timing Chart Vcc PSON/ FPO/ PGI VS12 VS5 VS33 PGO Td1 Tb1 Td3 Td2 AC turn on VPGI UVP/OVP protect PSON/ turn on PSON/ turn off PSON/ turn on AC turn off 1.25V 1.13V 0.63V Td1 Td2 OVP OVP/UVP OVP Version：A.003 3-Channel Secondary Monitoring IC -3- PS113A Pin Descriptions Pin No PIN NAME Descriptions 1 PGI Power good input signal pin 2 GND Ground 3 FPO Inverted fault protection output ,open drain output stage 4 PSON ON/OFF control input pin 5 VS33 3.3V over/under voltage protection input pin 6 VS5 5.0V over/under voltage protection input pin 7 VCC Supply voltage/12V over voltage protection input pin 8 PGO Power good output signal pin , open drain output stage Absolute Maximum Ratings Parameter Storage Temperature Rating Unit (Tstg) -40 to +125 °C Operating Temperature (Topr) -30 to +90 °C VCC -0.5 to +16.0 V VS33,VS5 -0.5 to Vcc+0.5 V PGI -0.5 to Vcc+0.5 V PSON/ -0.5 to Vcc+0.5 V FPO/ -0.5 to Vcc+0.5 V PGO -0.5 to Vcc+0.5 V > 2500 V Supply Voltage (VCC) Input Voltage Range (VI) Output Voltage Range (VO) ESD Susceptibility* (VESD) * Human Body Model (HBM). Electrical characteristics, Vcc=12V, Ta = 25˚C. (unless otherwise specified) Power Supply Section Parameter Conditions Supply Voltage Supply Current MIN 3.8 VPSON/ = 5V Power On Reset Threshold Voltage (VPOR) TYP MAX 5.0 16.0 2 3 3.6 V mA V ±0.6 Power On Reset Hysteresis (VHYST) Unit V Version：A.003 3-Channel Secondary Monitoring IC -4- PS113A Electrical Characteristics (Continued) Over-Voltage Section Parameter Over-Voltage Threshold Conditions MIN TYP MAX Unit VS33 3.76 3.88 4.0 V VS5 5.8 6.05 6.3 V VS12 12.4 13.5 13.6 V Under-Voltage Section Parameter Under-Voltage Threshold Conditions MIN TYP MAX Unit VS33 2.0 2.2 2.4 V VS5 3.3 3.5 3.7 V VS12 8.5 9.0 9.5 V PSON/, Analog Input Parameter Conditions Threshold Voltage MIN 0.9 Hysteresis (VHYST) Input Pull-Up current TYP 1.2 MAX 1.5 Unit V ±50 mV 10 uA PGI, Analog Input Parameter Conditions MIN TYP MAX Unit Threshold Voltage for start Td1 1.16 1.25 1.33 V Threshold Voltage for start Td2 0.60 0.63 0.75 V Threshold Voltage for mask OC,UV 1.05 1.13 1.21 V ±50 Hysteresis (VHYST)* mV * All of the comparator for PGI input in block diagram. PGO, Open Drain Digital Output Parameter Conditions Leakage Current (ILKG) VPGO=5V Low Level Output Voltage (VOL) ISINK=10mA MIN TYP MAX Unit 5 uA 0.4 V Version：A.003 3-Channel Secondary Monitoring IC -5- PS113A Electrical Characteristics (Continued) FPO/, Open Drain Digital Output Parameter Conditions Leakage Current (ILKG) MIN TYP MAX VFPO/=5V Low Level Output Voltage (VOL) Unit 5 uA ISINK=10mA 0.4 V ISINK=20mA 0.7 V Switching Characteristics, Vcc=12V, Ta = 25˚C. Parameter Conditions MIN TYP MAX Unit PGI to PGO Delay Time (Td1) 200 300 480 mS Short Circuit Delay Time (Td2) 49 75 100 mS PGO to FPO/ Delay Time (Td3) 2 4 6 mS PSON/ De-bounce Time (Tb1) 24 38 61 mS Noise De-glitch Time (Tb2) 10 20 30 uS PGO Noise De-glitch Time (Tb3) 47 73 120 uS Application S.P.S. Secondary Side +5V Output +3.3V Output +12V Coil +12V Output DV = +3.3V Coil or 1K PGO 8 2 GND VCC 7 3 FPO/ VS5 6 4 PSON/ PSON RPGO 4.7K +5VSB 1 PGI PGO +5VSB VS33 5 Cby RPGI CPGI CPSON PS113A Note1: Zener diode or resistor or both of them can be used in component X. Note2: The bypass capacitor Cby suggests to be 0.1uF~ 10uF and layout nearby pin VCC. Version：A.003 3-Channel Secondary Monitoring IC -6- PS113A Package Specification ( 8-pin DIP ) E1 eB E θ° D A Seating Plane A1 b1 L b e 0 5 10 0.0 Symbol Dimension in mm Min Normal 0.5 Dimension in inch Min Normal 5.33 A A1 Max 0.38 1.52 0.06 0.46 0.018 9.02 E1 9.27 10.16 0.355 7.62 6.22 eB 8.97 L 2.92 θ° 0º 1.0 mm inch NOTE Max 6.38 9.02 7º 0.365 0.400 0.300 6.53 0.245 2.54 e 25 0.210 b E 20 0.015 b1 D 15 0.251 0.257 0.100 9.07 0.353 3.81 0.115 15º 0º 0.355 0.357 0.150 7º 15º Version：A.003 3-Channel Secondary Monitoring IC -7- PS113A Package Specification (Continued) ( 8-pin SOP ) E H h x 45° D A C A1 B θ e L Seating Plane Dimension in mm Symbol MIN. MAX. Dimension in inch MIN. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.0040 0.010 B 0.41BSC 0.016BSC C 0.20BSC 0.008BSC e 1.27BSC 0.050BSC D 4.80 4.98 0.189 0.196 H 5.80 6.20 0.228 0.244 E 3.81 3.99 0.150 0.157 L 0.41 1.27 0.016 0.050 h θ 0.38BSC 0° NOTE MAX. 0.015BSC 8° 0° 8° Version：A.003 3-Channel Secondary Monitoring IC -8- PS113A The products listed herein are designed for ordinary electronic applications, such as electrical appliances, audio-visual equipment, communications devices and so on. Hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prevention equipment and the like. Misusing those products may directly or indirectly endanger human life, or cause injury and property loss. Silicon Touch Technology, Inc. will not take any responsibilities regarding the misusage of the products mentioned above. Anyone who purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. Silicon Touch Technology, Inc. and its distributors and all their officers and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such intention and manipulation. Silicon Touch Technology, Inc. reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. Version：A.003 3-Channel Secondary Monitoring IC -9-