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Texas Instruments ISO154 EVM Series, User Manual, Page: 11 / 20

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Texas Instruments ISO154 EVM Series User Manual Download Page 11

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ISO154xEVM Layout

Figure 8

shows the bottom-layer ground planes (shaded areas).

Figure 8. ISO154xEVM Bottom-layer Ground Planes

11

SLLU166 – June 2012

ISO154xEVM Low-Power Bidirectional I

2

C Isolators Evaluation Module

Submit Documentation Feedback

Copyright © 2012, Texas Instruments Incorporated

Summary of Contents for ISO154 EVM Series

Page 1: ...xEVM Layout 10 List of Figures 1 ISO1540 and ISO1541 Pinout 3 2 ISO154xEVM Top Photograph 3 3 ISO154xEVM Schematic 4 4 Basic EVM Operation 6 5 Typical Waveforms Inputs on Side 1 7 6 Typical Waveforms...

Page 2: ...tive 1 1 Overview The ISO154x devices are low power bidirectional isolators that are compatible with I2 C interfaces The logic input and output buffers on these devices are separated by TI s Capacitiv...

Page 3: ...ed in place of U1 and U2 respectively However this EVM can be configured for use with two ISO1540s or two ISO1541s Figure 2 ISO154xEVM Top Photograph An input or output pin can be tied either to suppl...

Page 4: ...ematic diagram for this EVM is presented in Figure 3 Figure 3 ISO154xEVM Schematic 4 SLLU166 June 2012 ISO154xEVM Low Power Bidirectional I2 C Isolators Evaluation Module Submit Documentation Feedback...

Page 5: ...L1 GND1 for U1 J3B J4B 4 pin jumper to VCC2 SDA2 GND2 for U1 J5B J6B 4 pin jumper to VCC2 SCL2 GND2 for U1 J7A J8A 4 pin jumper to VCC1 SDA1 GND1 for U2 J9A J10A 4 pin jumper to VCC1 SCL1 GND1 for U2...

Page 6: ...on either side If both sides are evaluated at the same supply voltage only one power supply is required and can be used to power both sides of the EVM CAUTION Note that this EVM is for operating para...

Page 7: ...tep in the rising edge of the input waveforms at SDA1 and SCL1 indicative of the tLOOP parameter of the device and demonstrating the effect of the difference in the low levels for the side 1 output an...

Page 8: ...gh output low level on side 1 designed to prevent a latch up state Note the offset of the output low level voltage from ground on SDA1 and SCL1 Figure 6 Typical Waveforms Inputs on Side 2 In addition...

Page 9: ...39 TP38 grouped as single row 4 pin jumper 4 J6A on EVM silkscreen is TP27 TP6 TP20 TP24 grouped as single row 4 pin jumper 5 J3B on EVM silkscreen is TP35 TP66 TP34 TP37 grouped as single row 4 pin j...

Page 10: ...re 7 shows the top layer routing of the ISO154xEVM Figure 7 ISO154xEVM Top layer Routing 10 SLLU166 June 2012 ISO154xEVM Low Power Bidirectional I2 C Isolators Evaluation Module Submit Documentation F...

Page 11: ...ttom layer ground planes shaded areas Figure 8 ISO154xEVM Bottom layer Ground Planes 11 SLLU166 June 2012 ISO154xEVM Low Power Bidirectional I2 C Isolators Evaluation Module Submit Documentation Feedb...

Page 12: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Page 13: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Page 14: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Page 15: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Page 16: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Page 17: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Page 18: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Page 19: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Page 20: ...egulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided...

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