Freescale Semiconductor Application Note Document Number AN4516 Rev. 1.0, 11/2012 IBIS Model File for Dual 24 V High Side Switch Family 1 Introduction This application note describes the Input/Output Buffer Information Specification (IBIS) model of the MC06XS4200, MC10XS4200, and MC20XS4200 devices. These intelligent high side switches are designed to be used in 24 V systems such as trucks and busses. They can be used in some industrial and 12 V applications as well. The low RDS(ON) channels can control incandescent lamps, LEDs, solenoids, or DC motors. Control, device configuration, and diagnostics are performed through a 16-bit SPI interface, allowing easy integration into existing applications. For a complete feature description, please refer to the individual data sheets. © Freescale Semiconductor, Inc., 2012. All rights reserved. Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Model Description . . . . . . . . . . . . . . . . . . . . . . . 2 3 Model Validation . . . . . . . . . . . . . . . . . . . . . . . . 3 4 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Revision History . . . . . . . . . . . . . . . . . . . . . . . . 5 Model Description 2 Model Description IBIS file contain the basic signal models for each type of signal of device: • • For input buffers: Input's capacitance and static pull-up/down currents For output buffers: Output's capacitance, static/dynamic pull-up/down currents, propagation delay For Dual 24 V High Side Switch, the IBIS model contains descriptions of • • • 4 input buffers: CLOCK, SCLK, CSB, RSTB, SI, IN[0:1], CONF[0:1] pins 4 output buffers: FSB, SO, FSB, SYNC pins Package parasitic elements This model can be used to characterize I/V output curves, rise/fall transition waveforms, and device package parasitic information. They cannot be used as a delay model for detailed timing analysis. POWER IBIS outputs IBIS inputs (4 models) (4 models) VDD VPWR CLOCK FSB SCLK HS0 CSB 10XS4200 SO RSTB SI HS1 IN0 IN1 CONF0 CONF1 FSOB SYNC CSNS output_fsb InputFast output_so InpuRSTB DirectInput ConfInput output_fsob output_sync GND GND Figure 1. IBIS I/O Description IBIS Model File for Dual 24 V High Side Switch Family, Rev. 1.0 2 Freescale Semiconductor Model Validation 3 Model Validation The input/output buffers are verified using the setup described in the IBIS MODELING COOKBOOK version 4.0. The Figure 2 and Figure 3 present best, typical, and worst cases of I/O transient responses. BCS Reference BCS IBIS TYP Reference TYP IBIS WCS Reference WCS IBIS Figure 2. SI Transient Waveforms - Low to High and High to Low BCS Reference BCS IBIS TYP Reference TYP IBIS WCS Reference WCS IBIS Figure 3. SO Transient Waveforms - Low to High and High to Low IBIS Model File for Dual 24 V High Side Switch Family, Rev. 1.0 Freescale Semiconductor 3 References 4 References The following documents provide key reference material related to this Application Note: DOCUMENT NUMBER DOCUMENT TYPE MC06XS4200 Datasheet • Dual 24 V High Side Switch (6.0 mΩ) MC10XS4200 Datasheet • Dual 24 V High Side Switch (10 mΩ) MC20XS4200 Datasheet • Dual 24 V High Side Switch (20 mΩ) KT06XS4200UG Evaluation Board User Guide • Dual 24 V High Side Switch (6.0 mΩ) KT10XS4200UG Evaluation Board User Guide • Dual 24 V High Side Switch (10 mΩ) KT20XS4200UG Evaluation Board User Guide • Dual 24 V High Side Switch (20 mΩ) White Paper DESCRIPTION / URL • IBIS Modeling Cookbook version 4.0, September 2005 IBIS Model File for Dual 24 V High Side Switch Family, Rev. 1.0 4 Freescale Semiconductor Revision History 5 Revision History REVISION 1.0 DATE DESCRIPTION OF CHANGES 11/2012 • Initial release IBIS Model File for Dual 24 V High Side Switch Family, Rev. 1.0 Freescale Semiconductor 5 How to Reach Us: Information in this document is provided solely to enable system and software Home Page: freescale.com implementers to use Freescale products. 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