AP436 Synchronous Rectifier MOSFET Driver Features General Descriptions - VOUT slew-rate minimum 100V/uS @ CL=3000pF - IOUT(sink & source)=1.2 / 0.9 A - Safety considered. - Reduce power system thermal & increase system efficiency. - Pb-free packages: SOT89-5L, SOP-8L The AP436 is a high-speed controller designed to drive N-channel power MOSFET used as synchronous rectifiers in high current, high frequency fly-back converters. The circuit does not require any ties to the primary side and derives its operating power directly from the secondary. The circuit functions are structured by anticipating transformer output transitions then turns the power MOSFET on or off before the transitions of the transformer to minimize body drain diode conduction and reduce associated losses. Application - Power Adapter. （50~120W for LCD Monitor & NB…etc.） Pin Descriptions Pin Assignment Name VCC VR VDC ( Top View ) VCC 1 GND 2 5 VOUT TAB (GND) AP436 VDC 3 VOUT GND 74 VR Description Operating voltage input Reference input voltage Duty cycle input voltage Output voltage for driving N channel MOSFET Ground SOT89-5L ( Top View ) VOUT 1 VCC 2 Ordering Information 8 GND AP436 7 GND VDC 3 6 GND VR 4 5 GND AP436 XX X SOP-8L Package Packing S : SOP-8L Y : SOT89-5L Blank: Tube A : Taping This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev.1.0 Oct 4, 2005 1/6 AP436 Synchronous Rectifier MOSFET Driver Block Diagrams VCC Start-Up IB1 IB2 5.6V VR VDC High Speed Comparator Block Buffer VOUT 15K GND Absolute Maximum Ratings Symbol VCC VR VDC VOUT PD TST TOP VOP Parameter Supply Voltage Reference input voltage Duty cycle input voltage Output voltage to Ground Power dissipation Storage temperature range Operating temperature range Operating voltage range Rating Unit 14 -0.3≦V≦2.5 -0.3≦V≦VCC-2.1 -0.7 1 -65 to 150 -40 to +125 7.2 to 14 V V V V W o C o C V Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 2/6 AP436 Synchronous Rectifier MOSFET Driver Electrical Characteristics O Unless otherwise specified, guaranteed for Tj=25 C, VCC=12V. Symbol VCC IB1 IB2 VR VDCL VOH VOL VDC VCM IS Parameter Supply Voltage Input Bias Current (Pin VR) Input Bias Current (Pin VDC) Reference Pin Voltage Range Minimum Input Signal Voltage Output High Output Low Detection Voltage Common Mode Range Supply Current (Average Value) ISOURCE Sourcing Current (Transient Value) ISINK Sinking Current (Transient Value) IOP Operation Current (Average Value) FOP PD Output Delay Time(Low to High) Output Delay Time(High to Low) Output Rise Time (10% ~ 90% Rise Edge) Output Fall Time (10% ~ 90% Fall Edge) Maximum Operation Frequency Power Dissipation ISD (Icc Shutdown Current) TPD TR TF Conditions VR=0.7V,VCC=12V VDC=0.7V,VCC=12V CL=3000pF RL=2K Min. 7.2 -74 -74 0.3 -0.3 Vcc-1.5 Typ. 12 -103 -103 0.7 Max. 14 -150 -150 1.5 0.8 0.9 VR+6 1.5 6 VR 0.7 VCC=12V,No Load VCC=12V,CL=3000pF RL=2K,Cin=47uF, FVdc=200KHz VCC=12V,CL=3000pF RL=2K,Cin=47uF, FVdc=60KHz SOT89-5L, SOP-8L VCC=5V, CL=3000pF RL=2K,Cin=47uF, FVdc=60KHz 5.5 Units V uA uA V V V V mV V mA 1250 mA 900 mA 14 mA 80 60 100 100 nS nS 35 100 nS 60 100 nS 200 KHz W 0.43 mA 1 0.2 Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 3/6 AP436 Synchronous Rectifier MOSFET Driver Typical Application Circuit （1） 220u with 0.1u GND VOUT + VCC GND AP436 GND VDC 1N4148 1N4148 VR GND BEAD 1N5819 D S IRF G Z44N SYSTEM + OUTPUT - （2） SYSTEM + OUTPUT IRF Z44N D S BEAD 1N5819 G - - 220u with 0.1u + GND VOUT VCC GND AP436 GND VDC 1N4148 VR GND 1N4148 Marking Information (1) (2) 8 4 XX Y M 5 Logo AP436 Part Number YY WW X ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 1 4 1 (Top View) 7 5 ( Top View ) 2 3 XX : Identification code (See Appendix) Y : Year: 0-9 M : Month: A~L SOT89-5L ~ Appendix Part Number AP436 Package SOT89-5L Identification Code FM SOP-8L Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 4/6 AP436 Synchronous Rectifier MOSFET Driver Package Information H E (1) Package Type: SOP-8L L VIEW "A" D 0.015x45 7 (4X) e B A1 C A A2 7 (4X) VIEW "A" y Symbol A A1 A2 B C D E e H L y θ Dimensions In Millimeters Min. Nom. Max. 1.40 1.60 1.75 0.10 0.25 1.30 1.45 1.50 0.33 0.41 0.51 0.19 0.20 0.25 4.80 5.05 5.30 3.70 3.90 4.10 1.27 5.79 5.99 6.20 0.38 0.71 1.27 0.10 0O 8O Dimensions In Inches Min. Nom. Max. 0.055 0.063 0.069 0.040 0.100 0.051 0.057 0.059 0.013 0.016 0.020 0.0075 0.008 0.010 0.189 0.199 0.209 0.146 0.154 0.161 0.050 0.228 0.236 0.244 0.015 0.028 0.050 0.004 0O 8O Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 5/6 AP436 Synchronous Rectifier MOSFET Driver Package Information (Continued) (2) Package Type: SOT89-5L A C 1.7 4.6 0.4 F 1.1 1.2 B E F 0.5 D 0.55 I 1.5 Land Pattern Recommendation (Unit: mm) H L K J G Symbol A B C D E F G H I J K L Dimensions In Millimeters Min. Nom. Max. 4.40 4.50 4.60 4.05 4.15 4.25 1.50 1.60 1.70 1.30 1.40 1.50 2.40 2.50 2.60 0.80 3.00 Ref. 1.50 Ref. 0.40 0.46 0.52 1.40 1.50 1.60 0.35 0.39 0.43 5o Typ. Dimensions In Inches Min. Nom. Max. 0.173 0.177 0.181 0.159 0.163 0.167 0.059 0.063 0.067 0.051 0.055 0.059 0.094 0.098 0.102 0.031 0.118 Ref. 0.059 Ref. 0.016 0.018 0.020 0.055 0.059 0.063 0.014 0.015 0.017 5o Typ. Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 6/6