SP6018E Synchronous Rectifier Driver DESCRIPTION The fundamental of SP6018E synchronous rectifier (SR) driver IC is based on our U.S. patented methods that utilize the principle of “prediction” logic circuit. The IC deliberates previous cycle timing to control the SR in present cycle by “predictive” algorithm that makes adjustments to the turn-off time, in order to achieve maximum efficiency and avoid cross-conduction at the same time. Specially, SP6018E is designed for Resonance. It also maintains the MOSFET’s body diode conduction at minimum level. The SP6018E is capable to adapt in almost all existing Resonance converters with few adjustments considered necessary. APPLICATIONS Switching Mode Power Supply FEATURES Offers efficiency improvement over Schottky Diode (depends on drive configuration of the SR). PIN CONFIGURATION (SOP-8) Low Standby Power to meet DOE Lot 6 requirement. Drives all logic level Power MOSFET. Prediction gate timing control. Minimum MOSFET body diode conduction. Operating frequency up to 400 KHz. Synchronize to transformer voltage waveform. Internal over voltage protection 2014/03/28 Ver 1.0 (CCM&DCM&QR) Storage area network power supplies Telecommunication converters Embedded systems Industrial & commercial systems using high current processors Power converters to meet Lot 6 requirement PART MARKING secondary Page 1 SP6018E Synchronous Rectifier Driver TYPICAL APPLCATION CIRCUIT PIN DESCRIPTION Pin Symbol 1 2 3 4 5 6 7 8 Timing Pred VR Adj GND MOSG-C Vdd SYNC 2014/03/28 Description Discontinuous current filter timing adjustment resistor connection. Capacitor to store previous cycle timing for SR MOSFET. Voltage Regulator. Trigger point adjustment for Dynamic state. Ground connection. Catch MOSFET gate drive. DC supply voltage. Synchronized signal from the VDS of SR MOSFET. Ver 1.0 Page 2 SP6018E Synchronous Rectifier Driver BLOCK DIAGRAM ORDERING INFORMATION Part Number Package Part Marking SP6018ES8RGB SOP-8 SP6018ES8TGB SOP-8 ※ SP6018ES8RGB : 13” Tape Reel ; Pb – Free ; Halogen - Free SP6018E SP6018E ※ SP6018ES8TGB : Tube ; Pb – Free ; Halogen - Free ABSOULTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified.) The following ratings designate persistent limits beyond which damage to the device may occur. Symbol Vdd IOUT PD TJ TSTG TLEAD Parameter DC Supply Voltage Peak Source Current (Pulsed) Peak Sink Current (Pulsed) Power Dissipation @ TA=85℃ (*) Operating Junction Temperature Range Storage Temperature Range Lead Soldering Temperature for 5 sec. 2014/03/28 Ver 1.0 Value 16 2.0 2.0 0.25 -40 to125 -40 to 150 260 Unit V A A W ℃ ℃ ℃ Page 3 SP6018E Synchronous Rectifier Driver THERMAL RESISTANCE Symbol RӨJC Parameter Thermal Resistance Junction – Case (*) Value 45 Unit ℃/W (*) The power dissipation and thermal resistance are evaluated under copper board mounted with free air conditions. ELECTRICAL CHARACTERISTICS (TA=25℃, Vdd=12V, Freq. =50 KHz, Duty Cycle=50%, unless otherwise specified.) Symbol Parameter Conditions Min. Typ. Max. Unit 10 4 16 11 mA mA V V 0.5 0.9 V SUPPLY INPUT IDD Supply current Vdd Supply voltage Vdd on Enable voltage Vdd Enable voltage hysteresis Vovp Over voltage protection Vovp hystersis SYNC REFERENCE (SYNC) Vshth SYNC high threshold Vslth SYNC low threshold Vsync SYNC clamp voltage Isync SYNC input current Voltage Regulator REFERENCE (VR) VR voltage IVR VR Output Current ON TIME DUTY SETUP ( PIN 6 ) Ton-time MOSFET GATE DRIVER (MOSG-C) Voh Output high voltage Vol Output low voltage Td Propagation delay Tpred Tr Rise time Tf Fall time Dynamic Protect Dt Dynamic variable Ton-min MOSG-C on time No load VSYNC=0V, Vdd on Idd peak < 2A 0.15 3 8.5 15 3.5 Isync=3mA 16 V 0.7 V 3.9 0.9 9.5 5.2 26 Io = -200mA Io = 200mA No load No load Load = 1nF (*) Load = 1nF (*) Pin 4 open PWM adjusts time > Dt 10.5 25 11.0 0.5 50 120 10 10 1.2 16 3 V V V mA 5.4 50 V mA 32 us 0.8 155 25 25 600 1 ns us (*) Tr & Tf are measured among 10% and 90% of starting and final voltage. 2014/03/28 Ver 1.0 V V ns ns ns ns Page 4 SP6018E Synchronous Rectifier Driver PERFORMANCE CHARACTERISTICS (TA=25℃, unless otherwise specified.) Figure 1: Supply Current VS Supply Voltage Figure 2: VR Voltage VS Supply Voltage 10 8 7 6 6 VR(V) IDD(mA) 8 4 5 4 3 2 2 1 0 0 1 2 3 4 5 6 7 8 1 9 10 11 12 13 14 15 16 2 3 4 5 6 7 10 11 12 13 14 15 16 Figure 4: Dynamic time VS C adj (pF) Figure 3: Tpred VS Cpred 5500 1200 5000 1100 1000 4500 900 4000 Tfull time (ns) Tpred(ns) 9 VDD(V) VDD(V) 800 700 600 500 400 3500 3000 2500 2000 1500 300 1000 200 500 100 0 20 40 60 80 0 100 20 40 60 80 100 120 140 160 C adj (pF) Cpred(pF) Figure 6: Output Rise Time VS Load Capacitor Figure 5: Output Fall Time VS Load Capacitor 100 90 90 80 80 70 Trise time (ns) Tfull time (ns) 8 70 60 50 40 30 60 50 40 30 20 20 10 10 0 0 0 1000 2000 3000 4000 5000 C load(pF) 6000 7000 8000 0 1000 2000 3000 4000 5000 6000 7000 C load(pF) *Fig. 1 : No Load ; No SYNC *Fig. 3 : Frequency = 100 kHz *Fig. 4~5 : Frequency = 65 kHz. 2014/03/28 Ver 1.0 Page 5 8000 SP6018E Synchronous Rectifier Driver SOP- 8 PACKAGE OUTLINE 2014/03/28 Ver 1.0 Page 6 SP6018E Synchronous Rectifier Driver Information provided is alleged to be exact and consistent. SYNC Power Corporation presumes no responsibility for the penalties of use of such information or for any violation of patents or other rights of third parties, which may result from its use. No license is granted by allegation or otherwise under any patent or patent rights of SYNC Power Corporation. Conditions mentioned in this publication are subject to change without notice. This publication surpasses and replaces all information previously supplied. SYNC Power Corporation products are not authorized for use as critical components in life support devices or systems without express written approval of SYNC Power Corporation. © The SYNC Power logo is a registered trademark of SYNC Power Corporation © 2013 SYNC Power Corporation – Printed in Taiwan – All Rights Reserved SYNC Power Corporation 7F-2, No.3-1, Park Street NanKang District (NKSP), Taipei, Taiwan, 115, R.O.C Phone: 886-2-2655-8178 Fax: 886-2-2655-8468 http://www.syncpower.com 2014/03/28 Ver 1.0 Page 7