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| AP436 Synchronous Rectifier MOSFET Driver Features - 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 General Descriptions 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 Assignment Pin Descriptions Name VCC VR VDC VOUT GND Description Operating voltage input Reference input voltage Duty cycle input voltage Output voltage for driving N channel MOSFET Ground ( Top View ) VCC 1 GND 2 VDC 3 SOT89-5L ( Top View ) VOUT 1 VCC 2 VDC 3 VR 4 SOP-8L AP436 8 GND 7 GND 6 GND 5 GND AP436 7 VR 4 5 VOUT TAB (GND) Ordering Information AP436 XX X Package S : SOP-8L Y : SOT89-5L Packing 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 VR VDC IB2 5.6V 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 14 -0.3V2.5 -0.3VVCC-2.1 -0.7 1 -65 to 150 -40 to +125 7.2 to 14 Unit 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 Unless otherwise specified, guaranteed for Tj=25 C, VCC=12V. O Symbol VCC IB1 IB2 VR VDCL VOH VOL VDC VCM IS ISINK IOP TPD TR TF FOP PD ISD 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) 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 VR 0.7 Typ. 12 -103 -103 0.7 Max. 14 -150 -150 1.5 0.8 ISOURCE Sourcing Current (Transient Value) Sinking Current (Transient Value) Operation Current (Average Value) 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 (Icc Shutdown Current) VCC=12V,No Load VCC=12V,CL=3000pF RL=2K,Cin=47uF, FVdc=200KHz 5.5 1250 900 14 0.9 VR+6 1.5 6 Units V uA uA V V V V mV V mA mA mA mA nS nS nS nS VCC=12V,CL=3000pF RL=2K,Cin=47uF, FVdc=60KHz 80 60 35 60 100 100 100 100 200 1 0.2 0.43 SOT89-5L, SOP-8L VCC=5V, CL=3000pF RL=2K,Cin=47uF, FVdc=60KHz KHz W mA Anachip Corp. www.anachip.com.tw Rev.1.0 Oct 4, 2005 3/6 AP436 Synchronous Rectifier MOSFET Driver Typical Application Circuit 1 + VOUT GND 220u with 0.1u - 1N4148 VCC GND AP436 GND VDC 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 1N4148 VR GND Marking Information (1) ( Top View ) 8 5 Logo (2) 5 XX Y M 4 (Top View) XX : Identification code (See Appendix) Y : Year: 0-9 M : Month: A~L 7 AP436 YY WW X Part Number ID code: internal Xth week: 01~52 Year: "01" =2001 "02" =2002 ~ 1 2 3 SOT89-5L 1 4 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 (1) Package Type: SOP-8L E H L VIEW "A" D 7 (4X) A2 A 0.015x45 7 (4X) A1 e B y C VIEW "A" Symbol A A1 A2 B C D E e H L y 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 D 1.7 0.5 F E B 1.2 F 0.55 I H G 1.1 0.4 1.5 Land Pattern Recommendation (Unit: mm) L J 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. K 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 4.6 |
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