PS232F

PS232F Version Issue Date File Name Total Pages : A.001 : 2008/08/21 : SP-PS232F-A.001.doc : 11 6-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 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F PS232F 6-Channel Secondary Monitoring IC General Description PS232F is specially designed for switching power supply system. Four important functions of PS232F are the followings: over-voltage protection, over-current protection, under-voltage protection and power good signal generating. OVP/UVP (Over-Voltage/Under-Voltage Protection) monitors 3.3V, 5V and quartic 12V to protect our power supply and PC, FPO/ goes to high when one of these supply voltages exceeds their normal operation voltage range. OCP (Over Current Protection) monitors IS33, IS5, IS12A, IS12B, IS12C, IS12D input current sense. An adjustable over-current condition composed of Iref and “protection current range resistor” helps users design OCP easily. An additional protection input pin provides the flexibility for design protection circuit. 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 • • • • • • • • • • Over/Under-voltage protection and lock out Over-current protection and lock out Additional protection input Fault protection output with open drain output stage Open drain power good output signal for power good input Built-in 300mS power good delay AC on 75ms delay for UV/OC protection 38mS PSON/ control de-bounce Wide power supply range (3.8V~16V) Special care for AC power off 6-Channel Secondary Monitoring IC -1- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Block Diagram VS delay 155KΩ Vref 9KΩ Vref 16KΩ UV delay OV 38mS De-bounce H : 4mS L : 4.5uS VCC FPO/ SQ R VS12A VS12B VS12C VS12D 15uS 1MΩ 30KΩ VCCI 2KΩ PSON/ 12 OV 1.25V 4.5V 12 UV 90KΩ VS5 58KΩ 5 UV 13.5KΩ Vref 5 OV 18.5KΩ Vref H : 75mS L : 4.5uS delay 1 0 Pext 2.5V 1.13V PGI 0.63V R QS VS33 38.5KΩ 3.3 UV 23.5KΩ Vref 3.3 OV 28KΩ Vref 1.25V VCCI 1MΩ PGO delay 73uS De-bounce VCCI IS12A IS12B IS12C IS12D VS IS Step Down to near 2.5V Iref X 8 H : 300mS L : 4.5uS OC delay 1mS 12 OC delay VCCI Power On Reset POR Constant Current Source Iref RI IS5 Step Down to near 2.5V Iref X 8 VCCI 5 OC H : 20mS L : 4.5uS Internal Power VCCI = 4V VCC Band-Gap Reference Vref 1.25V Clock Generator CLK VCC GND IS33 Step Down to near 2.5V Iref X 8 3.3 OC 6-Channel Secondary Monitoring IC -2- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Timing Chart Vcc PSON/ FPO/ PGI VS12A VS12B VS12C VS12D VS5 VS33 Pext IS12A IS12B IS12C IS12D IS5 IS33 PGO Td1 Td2 AC turn on UVP/OVP/OCP Pext protect Tb1 Td3 PSON/ turn on PSON/ turn off PSON/ turn on AC turn off VPGI 1.25V 1.13V 0.63V Td1 Td2 OVP OVP/UVP/OCP OVP 6-Channel Secondary Monitoring IC -3- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Pin Descriptions Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 PIN NAME PGI GND FPO/ PSON/ IS12A RI IS12B VS12B VS12C VS12D IS12D IS12C Pext IS5 IS33 VS12A VS33 VS5 VCC PGO Descriptions Power good input signal pin Ground Inverted fault protection output ,open drain output stage Remote ON/OFF control input pin 12V(1) over current protection input pin Current sense setting 12V(2) over current protection input pin 12V(2) over/under voltage protection input pin 12V(3) over/under voltage protection input pin 12V(4) over/under voltage protection input pin 12V(4) over current protection input pin 12V(3) over current protection input pin External protection detect input pin 5.0V over current protection input pin 3.3V over current protection input pin 12V(1) over/under voltage protection input pin 3.3V over/under voltage protection input pin 5.0V over/under voltage protection input pin Power supply Power good output signal pin , open drain output stage Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltage (Tstg) (Topr) (VCC) VCC VS12,IS12(A,B,C,D) VS5, IS5 Input Voltage Range (VI) VS33, IS33 PGI PSON/, Pext Output Voltage Range Output Current for RI (VO) (IRI) FPO/ PGO RI Rating -40 to -30 to -0.5 to -0.5 to -0.5 to -0.5 to -0.5 to -0.5 to -0.5 to -0.5 to 12.5 to +125 +90 +16.0 +16.0 +9.0 +7.0 +16.0 Vcc+0.5 +16.0 Vcc+0.5 62.5 Unit °C °C V V V V V V V V uA 6-Channel Secondary Monitoring IC -4- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Electrical Characteristics, Vcc=12V, Ta = 25°C. (unless otherwise specified) Power Supply Section Parameter Supply Voltage Supply Current Power On Reset Threshold Voltage (VPOR) Power On Reset Hysteresis (VHYST) VPSON/ = 5V 3.2 -0.15 Conditions MIN 3.8 TYP 5.0 4.5 3.4 -0.3 MAX 16.0 5.0 3.6 -0.45 Unit V mA V V Over-Voltage Section Parameter VS33 Over-Voltage Threshold VS5 VS12A/B/C/D Conditions MIN 3.7 5.7 13.1 TYP 3.9 6.1 13.8 MAX 4.1 6.5 14.5 Unit V V V Under-Voltage Section Parameter VS33 Under-Voltage Threshold VS5 VS12A/B/C/D Conditions MIN 2.0 3.3 8.5 TYP 2.2 3.5 9.0 MAX 2.4 3.7 9.5 Unit V V V PGI, Analog Input Parameter Threshold Voltage for start Td1 Threshold Voltage for start Td2 Threshold Voltage for mask OC,UV Hysteresis (VHYST)* * All of the comparator for PGI input in block diagram. Conditions MIN 1.16 0.60 1.05 +/-20 TYP 1.25 0.63 1.13 +/-50 MAX 1.33 0.75 1.21 +/-80 Unit V V V mV 6-Channel Secondary Monitoring IC -5- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Electrical Characteristics (Continued) PGO, Open Drain Digital Output Parameter Leakage Current (ILKG) Low Level Output Voltage (VOL) Conditions VPGO=5V ISINK=10mA MIN TYP MAX 5 0.3 Unit uA V FPO/, Open Drain Digital Output Parameter Leakage Current (ILKG) Low Level Output Voltage (VOL) Conditions VFPO/=5V ISINK=20mA MIN TYP MAX 5 0.4 Unit uA V PSON/, Analog Input Parameter Threshold Voltage ( High ) Threshold Voltage ( Low ) Conditions MIN 1.60 0.75 TYP MAX Unit V V External Protection Detect Section Parameter Threshold(VTH) Hysteresis (VHYST) Conditions MIN 2.5 +/-20 TYP 2.6 +/-50 MAX 2.7 +/-80 Unit V mV Switching Characteristics, Vcc=12V, Ta = 25°C. Parameter PGI to PGO Delay Time (Td1) Short Circuit Delay Time (Td2) PGO to FPO/ Delay Time (Td3) Under Voltage Delay Time (Td4) Over Current Delay Time (Td5) Over Voltage Delay Time (Td6) Pext Delay Time (Td7) PSON/ De-bounce Time (Tb1) PGO Noise De-glitch Time (Tb2) Conditions MIN 200 49 2 0.6 13 5 24 24 47 TYP 300 75 4 1 20 15 38 38 73 MAX 480 114 6 1.4 27 25 52 52 110 Unit mS mS mS mS mS uS mS mS uS 6-Channel Secondary Monitoring IC -6- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Application Typical 6 rails SPS S.P.S. Secondary Side RS5 +3.3V Coil +12V(1) Coil +12V(2) Coil +12V(3) Coil +12V(4) Coil RS33 RS12(1) RS12(2) RS12(3) RS12(4) +5V Output +3.3V Output +12V(1) Output +12V(2) Output +12V(3) Output +12V(4) Output ROC12(3) ROC12(4) ROC12(2) ROC12(1) ROC33 ROC5 = or RPGO 4.7K 1 PGI 2 GND +5VSB 1K PSON PGO 20 Vcc 19 VS5 18 VS33 17 0.1u PGO +5VSB 3 FPO/ 4 PSON/ 5 IS12A 6 RI 7 IS12B 0.1u VS12A 16 IS33 15 0.1u IS5 14 Pext 13 IS12C 12 1 IS12D 1 0.1u 0.1u Pext 8 VS12B CPGI RI 9 VS12C 10 VS12D PS232F 0.1u Notes: 1. Zener diode or resistor or both of them can be used in component X. 2. The bypass capacitor Cby suggests to be 0.1uF~ 10uF and layout nearby pin VCC. 3. The recommend sense values of RS12(1), RS12(2), RS5 and RS33 are ≥ 0.002Ω. 4. Over-Current Protection design example: V 1.25 (1) I ref = 20 μA , RI = RI = = 62.5 K (Ω ) I RI 20μ (2) RS5=0.002 Ω , ΔV5V = 0.002 × I +5V = ROC 5 × 8 × I ref (3) If +5V OCP trip point is 20A, ROC 5 = 0.002 × 20 = 250(Ω ) 8 × 20 μ Version：A.001 -7- 6-Channel Secondary Monitoring IC 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Package Specification ( 20-pin DIP ) E1 E eB θ° D A2 A Seating Plane A1 L b1 b e S 0 5 10 15 20 25 mm 0.0 0.5 1.0 inch Symbol A A1 A2 b b1 D E E1 e EB L S θ° Dimension in mm Min 0.381 3.175 0.400 7.620 6.223 2.286 8.509 2.540 0 9.017 7.000 2.794 9.525 3.556 1.905 15 3.302 3.429 1.626 0.560 26.416 Normal Max 5.334 Dimension in inch Min 0.015 0.125 0.016 0.300 0.245 0.090 0.335 0.100 0 0.355 0.276 0.110 0.375 0.132 0.075 15 0.13 0.135 0.064 0.022 1.040 Normal Max 0.210 NOTE 6-Channel Secondary Monitoring IC -8- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F Package Specification ( 20-pin SOP ) E H 0.020(inch) x45˚ D A A1 b 0.004 θ L e Dimension in mm Symbol A A1 b e D H E L θ MIN. 2.362 0.102 MAX. 2.642 0.305 Dimension in inch MIN. 0.093 0.004 MAX. 0.104 0.012 NOTE 0.406BSC 1.270BSC 12.598 10.008 7.391 0.406 0˚ 12.903 10.643 7.595 1.270 8˚ 0.016BSC 0.050BSC 0.496 0.394 0.291 0.016 0˚ 0.508 0.419 0.299 0.050 8˚ 6-Channel Secondary Monitoring IC -9- Version：A.001 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. PS232F 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. 6-Channel Secondary Monitoring IC -10- Version：A.001