SG6520 VS12B IAO33 SG6520TP SG6520DZ SG6520SZ IS12B 381X45 015X45 - Datasheet Archive

 

SG6520 PC Power Supply Supervisors FEATURES Two 12V sense input pins: VS12 and VS12B Over voltage protection (OVP) for 3.3V, 5V

 

Product Specification SG6520 SG6520 PC Power Supply Supervisors FEATURES Two 12V sense input pins: VS12 and VS12B VS12B Over voltage protection (OVP) for 3.3V, 5V and two 12V Over current protection (OCP) for 3.3V, 5V and two 12V Under voltage protection (UVP) for 3.3V, 5V and two 12V Open drain output for PGO and FPO pins 300mS power good delay 300mS turn on delay for 3.3V, 5V and two 12V 2.8mS PSON control to FPO turn-off delay 48mS PSON control delay No lockup during the fast AC power on/off Wide supply voltage range from 4.2V to 15V Programmable over temperature protection(OTP) DESCRIPTION SG6520 SG6520 is designed to provide the voltage, and current supervisor function, remote on/off (PSON) function, power good (PGO) indicator function, and fault protection (FPO) function for switching power systems. For supervisor function, it provides the over voltage protection (OVP) for 3.3V, 5V and two 12V; over current protection (OCP) for 3.3V, 5V and two 12V; under voltage protection (UVP) for 3.3V, 5V and two 12V When 3.3V, 5V or 12V voltage is decreasing to 2.3V, 3.5V and 9V respectively, the under voltage protection (UVP) function will be enabled. FPO will be set to high to turn off the PWM controller IC. The voltage difference across external current shunt is used for OCP functions. An external resistor can be used to adjust protection threshold. The power supply is turned on after 48mS delay time when PSON signal is set from high to low. To turn off power supply, PSON signal is set from low to high with the delay time 48mS. The PGI circuitry provides a power-down warning signal for PGO. When PGI input is lower than the internal 1.25V reference voltage, PGO signal is pulled low. TYPICAL APPLICATION © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -1- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors MARKING INFORMATION PIN CONFIGURATION T: D = DIP, S = SOP P: Z = Lead Free Null=regular package SG6520TP SG6520TP XXXXXXXX: Wafer Lot XXXXXXXXYWWV Y: Year; WW: Week V: Assembly Location ORDERING INFORMATION Part Number Package Type SG6520DZ SG6520DZ 16 pin DIP Plastic (Lead Free) SG6520SZ SG6520SZ 16 pin SOP Plastic (Lead Free) PIN DESCRIPTIONS Pin No. Pin Name Type 1 PGI Analog input 2 GND Supply 3 FPO Logic output 4 PSON Logic input 5 IS12 Analog input Description Power Good Input. For ATX SMPS, it detects AC line voltage through the main transformer. Ground. Fault Protection Output. Output signal to control the primary PWM IC through an opto-coupler. When FPO is low, the PWM IC is enabled. Remote On/Off logic input from CPU or main-board. The power supply will be turned on/off after 48mS delay. 12V over current protection sense input. For typical application, this pin is connected to the positive end of a current shunt through one resistor. When the voltage on IS12 is higher than that of VS12 by 5mV, OCP will be enabled. Reference setting. One external resistor Ri connected between RI and GND pin will 6 RI Analog input 7 IS12B IS12B Analog input positive end of a current shunt through one resistor. When the voltage on IS12 is higher 8 VS12B VS12B Analog input Second 12V over/under-voltage control sense input. 9 OTP Analog input For over-temperature protection. determine a reference current, Iref = 1.25/Ri, for OCP programming. 12V over current protection sense input. For typical application, this pin is connected to the than that of VS12 by 5mV, OCP will be enabled. 10 IS5 Analog input 5V over current protection sense input. 11 IS33 Analog input 3.3V over current protection sense input. 12 VS12 Analog input 12V over/under-voltage control sense input. 13 VS33 Analog input 3.3V over/under-voltage control sense input. 14 VS5 Analog input 5V over/under-voltage control sense input. 15 VDD Supply 16 PGO Logic output © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) Supply voltage. 4.2V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through diodes respectively. Power good logic output, 0 or 1(open-drain). Power good=1 means that the power supply is good for operation. The power good delay is 300mS. -2- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors BLOCK DIAGRAM © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -3- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors FUNCTION TABLE PGI PSON UV Protection 12V & OC Protection OV Protection FPO PGO PGI1.25V L Yes Yes H L X H X X H L x = don't care FPO = L means: fault IS NOT latched FPO = H means: fault IS latched PGO = L means: fault PGO = H means: No fault © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -4- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors TIMING DIAGRAM PSON On/Off and 3.3V, 5V OVP Function © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -5- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors 12V OVP/UVP and OCP Function © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -6- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors ABSOLUTE MAXIMUM RATINGS Symbol Parameter VDD DC Supply Voltage Input Voltage VI Value 16 PSON, VS33, VS5, PGI, IS33, IS5, OTP Unit V -0.3 to 7 V Input Voltage VS12, VS12B VS12B, IS12,IS12B IS12B -0.3 to 15 VOUT Output Voltage FPO, PGO TJ Operating Junction Temperature V 8 V -40 to 125 TSTG Storage Temperature Range -55 to 150 TL Lead Temperature (Wave soldering or IR, 10 seconds) 260 ESD Capability, HBM Model 4.5 KV ESD Capability, Machine Model 200 V *All voltage values, except differential voltages, are given with respect to GND pin. * Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. RECOMMENDED OPERATING CONDITIONS Symbol Parameter Value Unit VDD DC Supply Voltage Test Conditions 4.2 to 15 V TOPER Operating Ambient Temperature Range -25 to +85 * For proper operation ELECTRICAL CHARACTERISTICS (VDD=12V, TA=25, UNLESS NOTED) VDD Section Symbol Parameter Test Conditions IDD1 Supply Current PSON = Low IDD2 Supply Current PSON = High TR Supply Voltage Rising Time VST Min. Typ. Max. Unit 1.7 2.6 mA 1.0 1.5 VDD Start Threshold Voltage mA 1 mS 4.2 V Unit Over Voltage and Over Current Protection Symbol Parameter Test Conditions VOVP Min. Typ. Max. 3.7 Over Voltage Protection VS33 3.9 4.1 5.7 6.1 13.2 13.8 14.4 7.6 8 8.4 Ratio of current sense sink current to current RI = 30 , sense setting pin (RI) source current 0.1% Resistor VOFFSET OCP comparator input offset voltage ILKG Leakage Current (FPO) VOL Low Level Output Voltage (FPO) TOVP OVP Delay Time 33 TOCP OCP Delay Time VRI IRI TST-OCP V 6.5 Over Voltage Protection VS12, VS12B VS12B IREF Over Voltage Protection VS5 5 mV V(FPO) = 5V 5 uA Isink 20mA 0.4 V 75 110 uS 12.5 20 27.5 mS RI Pin Voltage 1.237 1.25 1.262 V Output Current RI 12.5 62.5 uA 450 mS Start-up OCP / UVP Protection Time From FPO Low to FPO High © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -5 PGI < 1.25V ,FPO=Low -7- 200 300 www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors Under Voltage Protection and PGI, PGO Symbol Parameter VPGI Input Threshold Voltage PGI 1.225 Under Voltage Protection VS33 2.1 VUVP Test Conditions Min. Typ. Max. Unit 1.25 1.275 V 2.3 2.5 Under Voltage Protection VS5 3.3 3.5 8.5 9.0 V 3.7 Under Voltage Protection VS12, VS12B VS12B 9.5 TOND Under Voltage Turn-on Delay Time PGI > 1.25V 49 75 114 mS TUVP UVP Delay Time PGI > 1.25V 175 275 375 uS ILKG-PGO Leakage Current (PGO) PGO = 5V 5 uA 0.4 V VDD = 12V VOL-PGO Low Level Output Voltage (PGO) TPG Timing PG Delay PGI to PGO 200 300 450 mS TND Noise Deglitch Time PGI to PGO 90 150 210 uS Min. Typ. Max. Isink 10Ma PSON Control Symbol Parameter Test Conditions IPSON Input Pull-up Current PSON = 0V VIH High-level Input Voltage VIL Low-level Input Voltage 120 Unit uA 2 V 0.8 V mS Timing PSON to On/Off TPSON 34 48 67 Off (PSON High to PGO Low) TPSOFF On (PSON Low to FPO Low) 34 48 67 Timing PGO Low to FPO High 1.6 2.8 4.5 mS Over Temperature Section Symbol Parameter Min. Typ. Max. Unit VTH Over Temperature Threshold 2.4 2.5 2.6 V VHYST Hysteresis 0.18 0.23 V © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) Test Conditions -8- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors TYPICAL CHARACTERISTICS Ratio of C urrent Sense Sink Current to R I Pin Source C urrent (I R EF ) vs Temperature Supply Current (I D D 1 ) vs Temperature 2.1 8.4 2.0 8.3 8.2 8.1 1.8 I REF I DD1 (mA) 1.9 1.7 8.0 7.9 1.6 7.8 1.5 7.7 7.6 1.4 -40 -25 -10 5 20 35 50 65 80 95 110 -40 125 -25 -10 5 20 35 50 65 80 95 110 125 110 125 Temperature () Temperature () OC P C omparator I nput Offset V oltage (V O F F SET ) vs OCP D elay Time (T O C P ) vs Temperature Temperature 22 1 20 T O C P (mS) 24 2 V O F FSET (mV) 3 0 -1 -2 18 16 14 -3 12 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 Temperature () 50 65 80 95 Temperature () I nput Threshold Voltage (V PG I ) vs Temperature RI Pin Voltage (V R I ) vs Temperature 1.30 1.28 1.28 1.26 1.26 V PG I (V) 1.30 V RI (V) 35 1.24 1.24 1.22 1.22 1.20 1.20 -40 -25 -10 5 20 35 50 65 80 95 110 -40 125 © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) -25 -10 5 20 35 50 65 80 95 110 125 Temperature () Temperature () -9- www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors APPLICATION NOTE Over Current Protection (OCP) The SG6520 SG6520 provides over current protection for the 3.3V, 5V and two 12V rails. Whenever an OCP condition occurs at any of the voltage rails, PGO will be low and FPO will be open. The internal OCP comparators have a very small offset voltage (±5mV). The sink currents of IS33, IS5, IS12 and IS12B IS12B are 8 times the current at the RI pin. The current at the RI pin is VRI/Ri. Here is an example demonstrating how to set the over current protection. If I1*R1>(IRI*8)*R2, than OCP active. How to select R2 Resistor: If R1 =5m , Ri=30K, OCP Protection Level is 35A, than R2 = (I1*R1)/(IRI*8) = (35A*5m )/{(1.25V/30K)*8} = 525 © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) - 10 - www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors PACKAGE INFORMATION 16 PINS - DIP(D) D 9 16 E1 eB E 8 1 A2 A L e b1 A1 Dimension: Symbol Millimeter Min. Typ. A A1 A2 b b1 D E E1 e L eB ° © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) Inch Min. Max. Typ. 5.334 0.381 3.175 18.669 6.121 2.921 8.509 0° 3.302 1.524 0.457 19.177 7.620 6.299 2.540 3.302 9.017 7° 0.210 3.429 0.015 0.125 19.685 0.735 6.477 0.241 3.810 9.525 15° 0.115 0.335 0° - 11 - Max. 0.130 0.060 0.018 0.755 0.300 0.248 0.100 0.130 0.355 7° 0.135 0.775 0.255 0.150 0.375 15° www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors 16 PINS - SOP(S) 16 9 E 1 H Detail A F 8 c b e D A2 A L y Detail A A1 Dimension: Symbol Millimeter Min. Typ. A A1 A2 b c D E e H L F y ° © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) 1.346 0.101 1.244 Inch Min. Max. 1.753 0.254 1.499 0.406 0.203 9.804 3.810 0.069 0.010 0.059 0.386 0.150 6.198 1.270 0.228 0.016 1.270 0.394 0.157 0.050 0.381X45 381X45° 0° Max. 0.016 0.008 10.008 3.988 5.791 0.406 Typ. 0.053 0.004 0.049 0.244 0.050 0.015X45 015X45° 0.101 8° - 12 - 0° 0.004 8° www.sg.com.tw Sep.05,2006 Product Specification SG6520 SG6520 PC Power Supply Supervisors DISCLAIMERS LIFE SUPPORT System General's products are not designed to be used as components in devices intended to support or sustain human life. Use of System General's products in components intended for surgical implant into the body, or other applications in which failure of the System General's products could create a situation where personal death or injury may occur, is not authorized without the express written approval of System General's Chief Executive Officer. System General will not be held liable for any damages or claims resulting from the use of its products in medical applications. MILITARY System General's products are not designed for use in military applications. Use of System General's products in military applications is not authorized without the express written approval of System General's Chief Executive Officer. System General will not be held liable for any damages or claims resulting from the use of its products in military applications. RIGHT TO MAKE CHANGES System General reserves the right to change this document and/or this product without notice. Customers are advised to consult their System General sales representative before ordering. © System General Corp. Version 1.0 (IAO33 IAO33.0041.B0) - 13 - www.sg.com.tw Sep.05,2006