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| 5 4 3 2 1 GND1 GND2 3.3VU18 www..com D C9 0.1uF C10 0.1uF C11 0.1uF RREF 75K 6.8uF CLFC VREF CHL 4.7uF RT 47.5K LE88111 1FXS example circuit D 23 24 32 33 11 10 4 5 3 2 1 U18 DVDD DGND AGND AVDD AGND AVDD RTV LFC IHL IREF RSN RST DOUT 17 20 30 RST DOUT DGND DRA/DD PCLK/DCL DXA/DU FS/FSC DIN/S1 INT CS/PG SWCMPY SWOUTY DCLK/S0 BGND RSVD RSVD VREF VBAT I/O2 I/O1 TDC TAC 8 6 42 41 40 39 38 37 36 7 9 RTDCa 402K RTAC CTAC 68nF 3.01K CTDC 22nF 200V 1 2 3 4 K1 G NC K2 1 RFT 2 50 TIP1 DRA PCLK DXA C 28 27 29 31 21 18 19 22 LE88111/Le88131 LE88111_44-pin eLQFP Socket TIPD RSVD TIPT RSVD RINGT RSVD RINGD RAC RDC U19 K1 A A K2 8 7 6 5 RFR 1 50 2 RING1 C BAT FS DIN INT CS DCLK (LXU - 9/22/03 pin-out orientation for schematic drawing only) CVB1 0.1uF 200V TISP61089B CRAC 68nF CRDC 22nF 200V EMI reduction, optional RRAC 3.01K SWVSY SWISY RRDCa 402K BGND1 BGND CSW1 0.1uF 3.3VU18 RP 10K CP1 5 220pF 3 RB2 10K VSW CSW ( LESR ) 100 uF 25V + TP3 Sumida Proto IND_S30079 3 T1 7 *Snubber C17 47pF 200V circuit, optional R14 BAT 1K DSW 2 1 MURS120 1A/200V 12 26 25 35 43 34 44 15 13 14 VREF BAT 16 *optional RB1 520 TP4 Drain RJMPR1 0 OHM DNP TP5 RJMPR2 TP6 BAT B C14 0.1uF CREF1 0.68uF QD1A 4 Gate 4 5 6 1 B CP2 220pF SWOUT 1 2 RG1 MBT3946 QD1B 10K X1 NDT3055L 60V_4A *optional CFL2 0.1uF 200V 6 RLIM reserve for 5V application CFL1a 1uF 200V *SEE NOTE CFL1b 1uF 200V RVS 402K Place holder 0.02 1/4W SWCMPY RCMP 1M There should be a GND connection to expost pad on the LE88111/131 QD1A, QD1B is single package with dual transistors. A CCMP1 820pF *** Default configuration is S30079 with 12V input, ( VSW= +12V ). For 5V input ( VSW = +5V), use S3027. Cut RJMPR1 trace and populate RJMPR2. Also, connect testpoints TP3 to TP4 and TP5 to TP6. CCMP2 5pF A CFL1a & CFL2a can be replaced by a single 2.2uF/200V capacitor: (United Chemi-con#TCHR70E2D225MT). CFL1a is dual footprint for this part:3025 (in) Title LE88111 example circuit Size B Date: Document Number Friday, June 17, 2005 Sheet 1 Rev 1 of 3 Author: Leming Xu, Updated: Raymond AuyeungB 5 4 3 2 |
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