SG6516 PC Power Supply Supervisors Features Description Two 12V Sense Input Pins: VS12 and VS12B The SG6516 is designed to provide the supply voltage, current supervisor, remote on/off (PSON), power good (PGO) indicator, and fault protection (FPO) functions for switching power systems. 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 Over-Voltage Protection (OVP) for 3.3V, 5V, and two 12V For supervisory functions, it provides the over-voltage protection (OVP) for 3.3V, 5V, and two 12V; overcurrent 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 decreases to 2.3V, 3.5V, and 9V, respectively, the under-voltage protection function is enabled. FPO is set 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 the protection threshold. An additional protection input pin provides the flexibility for designing protection circuits. 300ms Power-Good Delay 2.8ms PSON Control to FPO Turn-off Delay 48ms PSON Control Delay No Lock-up During the Fast AC Power On/Off Wide Supply Voltage Range: 4V to 15V The power supply is turned on after a 48ms delay when PSON signal is set from HIGH to LOW. To turn off the power supply, the PSON signal is set from LOW to HIGH with a delay of 48ms. The PGI circuitry provides a power-down warning signal for PGO. When PGI input is lower than the internal 1.25V reference voltage, the PGO signal is pulled LOW. Applications Switch-Mode Power Supplies with Active PFC Servo System Power Supplies PC-ATX Power Supplies Ordering Information Part Number Operating Temperature Range Package SG6516DZ -40°C to +85°C 16-pin Dual In-Line Package (DIP) SG6516SZ -40°C to +85°C 16-pin Small Outline Package (SOP) Packing Method Rail Tape & Reel All packages are lead free per JEDEC: J-STD-020B standard. © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com SG6516 — PC Power Supply Supervisors April 2008 SG6516 — PC Power Supply Supervisors Application Diagram Figure 1. © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 Typical Application www.fairchildsemi.com 2 SG6516 — PC Power Supply Supervisors Block Diagram Figure 2. Function Block Diagram © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 3 SG6516 — PC Power Supply Supervisors Pin Configuration Figure 3. Pin Configuration(Top View) Pin Definitions Pin # Name Description 1 PGI Power Good Input. For ATX SMPS, it detects AC line voltage through the main transformer. 2 GND Ground. 3 FPO Fault Protection Output. Output signal to control the primary PWM IC through an optocoupler. When FPO is low, the PWM IC is enabled. 4 PSON 5 IS12 6 RI 7 VS12B 8 IS5 5V over-current protection sense input. 9 IS33 3.3V over-current protection sense input. 10 VS12 12V over/under-voltage control sense input. 11 VS33 3.3V over/under-voltage control sense input. 12 VS5 5V over/under-voltage control sense input. 13 VDD Supply voltage: 4.2V ~ 15V. For ATX SMPS, it is connected to 5V-standby and 12V through diodes, respectively. 14 PGO 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. Remote on/off logic input from CPU or main board. The power supply is turned on/off after a 48ms delay. 12V over-current protection sense input. For typical applications, 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 is enabled. Reference setting. One external resistor, RI, connected between the RI and GND pins, determines a reference current, IREF=1.25/RI, for OCP programming. Second 12V over/under-voltage control sense input. © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 4 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. All voltage values, except differential voltage, are given with respect to GND pin. Symbol VDD VIN VOUT TJ TSTG TL ESD Parameter Min. Max. Unit 16 V PSON, PGI, VS5, IS5, VS33, IS33 -0.3 7.0 V VS12, VS12B, IS12 -0.3 15.0 V FPO, PGO DC Supply Voltage Input Voltage -0.3 8.0 V Operating Junction Temperature Output Voltage -40 +125 °C Storage Temperature Range -55 +150 °C +260 °C Electrostatic Discharge Capability, Human Body Model Lead Temperature (Soldering) 3.0 KV Electrostatic Discharge Capability, Machine Model 200 V SG6516 — PC Power Supply Supervisors Absolute Maximum Ratings Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol TA Parameter Min. Operating Ambient Temperature © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 -40 Typ. Max. Unit +85 °C www.fairchildsemi.com 5 VDD=5V, TA=25°C, unless otherwise noted. Symbol Parameter Conditions VDD Section VDD DC Supply Voltage IDD1 Supply Current 1 PSON=LOW IDD2 Supply Current 2 PSON=HIGH tR Supply Voltage Rising Time VST VDD Start Threshold Voltage Over-Voltage (OVP) and Over-Current (OCP) Protections VS33 VOVP Over-Voltage Protection VS5 VS12, VS12B Ratio of Current-Sense Sink Current RI=18.5kΩ ~ 75kΩ IREF to Current-Sense Setting Pin (RI) Source Current VOFFSET OCP Comparator Input Offset Voltage ILKG-FPO Leakage Current (FPO) FPO=5V VOL-FPO Low Level Output Voltage (FPO) ISINK 20mA tOVP OVP Delay Time tOCP OCP Delay Time VRI RI Pin Voltage IRI Output Current RI 0.6V < PGI < 1.25V; tST-OCP Start-up OCP / UVP Protection Time FPO=Low Under-Voltage Protection and PGI, PGO VPGI_1 Input Threshold Voltage PGI 1 VPGI_2 Input Threshold Voltage PGI 2 VS33 VUVP Under-Voltage Protection VS5 VS12, VS12B tOND Under Voltage Turn-on Delay PGI>0.6V tUVP UVP Delay PGI>1.25V ILKG-PGO Leakage Current (PGO) PGO=5V VOL-PGO Low Level Output Voltage (PGO) VDD=12V; ISINK 10mA tPG Timing PG Delay tND1 Noise Deglitch Time PSON Control IPSON Input Pull-up Current VIH High-level Input Voltage VIL Low-level Input Voltage tPSON tPSOFF Timing PSON to On/Off Typ. Max. Units 1.7 1.0 15.0 2.6 1.5 V mA mA ms V 4.2 1 4.2 3.7 5.7 13.2 3.9 6.1 13.8 4.1 6.5 14.4 7.6 8.0 8.4 -3 3 5 0.4 110 27.5 1.01•Typ. 62.5 mV µA V µs ms V µA 75 20.0 1.25 49 75 114 ms 0.98•Typ. 0.96•Typ. 2.1 3.3 8.5 49 2.4 1.25 0.60 2.3 3.5 9.0 75 3.2 V V 200 300 1.02•Typ. 1.03•Typ. 2.5 3.7 9.5 114 4.0 5 0.4 450 ms ms µA V ms 90 150 210 µs 0.8 µA V V 120 2 PSON LOW to FPO LOW PSON HIGH to PGO LOW V 33 12.5 0.98•Typ. 12.5 PSON=0V Timing PGO LOW to FPO HIGH © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 Min. 34 48 67 34 48 67 1.6 2.8 4.5 SG6516 — PC Power Supply Supervisors Electrical Characteristics V ms ms www.fairchildsemi.com 6 The SG6516 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 is LOW and FPO is open. The internal OCP comparators have a very small offset voltage ( ± 3mV). The sink currents of IS33, IS5, and IS12 are eight times the current at the RI pin. The current at the RI pin is VRI/RI. The following example demonstrates how to set the over-current protection. If I1×R1 > IRI × R2, OCP is active. If R1=5mΩ, RI=30KΩ, and the OCP active level is 35A; the R2 resistor is: R2 = I1 × R 1 = 525Ω IRI × 8 (1) Figure 4. OCP Set-up where C is bypass noise, with a suggested value between 1µF ~ 2.2µF © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 SG6516 — PC Power Supply Supervisors Functional Description www.fairchildsemi.com 7 SG6516 — PC Power Supply Supervisors Timing Chart Figure 5. Timing Diagram © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 8 1.900 8.300 1.800 8.100 1.700 IREF IDD1 (mA) 8.500 7.900 1.600 1.500 7.700 7.500 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 1.400 -40℃ -25℃ -10℃ 95℃ 110℃ 125℃ Figure 6. IREF vs. TA 5℃ 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 95℃ 110℃ 125℃ Figure 7. IDD1 vs. TA SG6516 — PC Power Supply Supervisors Typical Performance Characteristics 28.000 2.000 26.000 1.200 TOCP (ms) VOFFSET (mV) 24.000 0.400 -0.400 22.000 20.000 -1.200 18.000 -2.000 -40℃ -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 16.000 -40℃ -25℃ -10℃ 95℃ 110℃ 125℃ Figure 8. VOFFSET vs. TA 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 95℃ 110℃ 125℃ Figure 9. tOCP vs. TA 1.300 1.280 1.280 1.260 1.260 VRI (V) VPGI (V) 1.300 1.240 1.220 1.200 -40℃ 5℃ 1.240 1.220 1.200 -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 95℃ 110℃ 125℃ -40℃ Figure 10. VRI vs. TA © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 -25℃ -10℃ 5℃ 20℃ 35℃ 50℃ Temperature (℃) 65℃ 80℃ 95℃ 110℃ 125℃ Figure 11. VPGI vs. TA www.fairchildsemi.com 9 SG6516 — PC Power Supply Supervisors Physical Dimensions Figure 12. 14-PDIP Symbol Millimeter Min. Inch Typ. A Max. Min. Typ. 5.334 A1 0.381 A2 3.175 0.210 0.015 3.302 3.429 0.125 0.130 b 1.524 0.060 b1 0.457 0.018 D 18.669 19.177 6.121 6.299 E E1 L 19.685 0.735 0.755 6.477 0.241 0.248 7.620 e Max. 0.135 0.775 0.300 2.540 0.255 0.100 2.921 3.302 3.810 0.115 0.130 0.150 eB 8.509 9.017 9.525 0.335 0.355 0.375 θ˚ 0˚ 7˚ 15˚ 0˚ 7˚ 15˚ Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 10 SG6516 — PC Power Supply Supervisors Physical Dimensions (Continued) Figure 13. 14-SOIC Symbol Millimeter Min. Inch Typ. Max. Min. Typ. Max. A 1.346 1.753 0.053 0.069 A1 0.101 0.254 0.004 0.010 A2 1.244 1.499 0.049 0.059 b 0.406 0.016 c 0.203 0.008 D 9.804 10.008 0.386 0.394 E 3.810 3.988 0.150 0.157 e 1.270 0.050 H 5.791 6.198 0.228 0.244 L 0.406 1.270 0.016 0.050 F 0.381X45˚ y θ˚ 0.015X45˚ 0.101 0˚ 0.004 8˚ 0˚ 8˚ Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 11 SG6516 — PC Power Supply Supervisors © 2007 Fairchild Semiconductor Corporation SG6516 • Rev. 1.0.2 www.fairchildsemi.com 12