LX1802 "PLUG" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET DESCRIPTION • • KEY FEATURES Low peak current consumption: <2mA 2 Small form factor 0.889 mm Solder bumped die • APPLICATIONS Implantable Cardio Defib • W W W. Microsemi .COM The MSC-LX1802 is the IC2 "Plug" for the MED427A-1 module. The "Plug" chip has peak rectifier, level shifter, and switch. This full wave peak rectifier converts the peak to peak AC input waveform to a DC level. The charge builds up on both terminals of the storage capacitor to step up the DC level during a full wave input signal. The charge dissipates via a resistor when the AC input signal stops. The level shifter is a source follower transistor with a resistive load. The input connects to the peak rectifier output and the output connects to IGBT_G. If the input voltage is below threshold, the output (IGBT_G) equals IGBT_E voltage. If the input voltage exceeds the threshold voltage of the transistor, the output steps up to the bootstrap voltage Vhi+IGBT_E at the IGBT_G output. The switch supplements the discharge of the capacitor in the peak rectifier when the AC input signal stops. The switch remains open when there is an AC signal since a virtual ground forms at its input and prevents a channel from forming in the active device. The opposite occurs when the AC signal stops and the input builds a potential greater than a threshold voltage. IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com BLOCK DIAGRAM Vhi in Peak Rect Level Shifter Clamp Switch IGBT_G IGBT_E Simplified Block Diagram Copyright 2001 Rev. 0.2b, 2002-06-17 PACKAGE ORDER INFO Package Number LX1802 Microsemi Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541 LX1802 TJ (°C) 10 to 55 1 LX1802 "PLUG" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET PACKAGE PIN OUT 13 4 11 6 (Bottom View) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal. 5 W W W. Microsemi .COM ABSOLUTE MAXIMUM RATINGS Voltage potential......................................................................................... 0.0V to +20.0V ESD Voltage ................................................................................................................. 2kV Storage Temperature Range(TSTOR)................................................................10°C to 55°C Storage humidity...............................................................................................10% to 90% FUNCTIONAL PIN DESCRIPTION PIN NAME PIN NO 16 PIN DIP DESCRIPTION IGBT_G 5 Connects to IGBT gate IGBT_E 6 Connects to IGBT emitter IN 11 Input AC signal VDDHI 13 High voltage supply EXTERNAL COMPONENTS Symbol Value Tolerance Function PACKAGE DATA Copyright 2001 Rev. 0.2b, 2002-06-17 Microsemi Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541 2 LX1802 "PLUG" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET OPERATING CONDITIONS Parameter Symbol Vp f TAMB Min 15 5 31 Typ 16 7.5 37 Max Unit 18 10 43 Volt MHz °C ELECTRICAL CHARACTERISTICS Unless otherwise specified, the following specifications apply over the operating ambient temperature TA=37°C except where otherwise noted. Test conditions: VHI=16V, IGBT_E=800V, fin=10MHz, IGBT_G load=3nF. Parameter Symbol Voltage drop limit for IGBT_G Vdrop Rise time for IGBT_G trise,G Fall time for IGBT_G Enable time for IGBT_G tfall,G ten,G Disable time for IGBT_G tdis,G Test Conditions -5MHz 0-6V 50% @ pin in - Vdrop=18V-IGBT_G(pk) -5MHz 0-6V 50% @ pin in -10%-90%*IGBT_G(pk) -90%-10%*IGBT_G(pk) -Measure enable of 5MHz 0-18V 50% @ pin in to IGBT_G=90%*IGBT_G(pk) -Measure disable of 5MHz 0-18V 50% @ pin in to IGBT_G=10%*IGBT_G(pk) Min LX1801 Typ Max Units 1 V 5 us 5 5 us us 5 us W W W. Microsemi .COM Voltage potential Input frequency Operating temp ELECTRICALS Copyright 2001 Rev. 0.2b, 2002-06-17 Microsemi Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541 3 LX1802 "PLUG" for MED427A-1 CARLSBAD DIVISION TARGET DATASHEET MECHANICALS Dim X Y (22, 406) (930, 400) MILLIMETERS MIN MAX 1.40 0.635 INCHES MIN MAX 0.055 0.025 (1208, 400) Note: (19, 20) (1204, 22) 1. Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. W W W. Microsemi .COM 4-Pin Bare Die (0,0) Pad Locations are (Xmin, Ymin) and are in um MECHANICALS Copyright 2001 Rev. 0.2b, 2002-06-17 Microsemi Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541 4