Datasheet

Test Procedure

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2.2.2 USB2ANY GUI Launch

Change as the red box selection as shown figure Figure 4. Change the divider of the input frequency to

the same as that in Figure 3 to make the communication speed 4 kHz. Start with low communication

frequency for easier verification.

Make sure each red box is properly modified.

Then, clock “Set SPI” to make the change enabled.

“Set SPI” should be clicked everytime after any in the red boxes are changed.

Probe that voltages of CS, SCL, MOSI and MISO are all zero.

Figure 4. Set Up for the USB2ANY

2.2.3 Test With SPI Interface Buffer Disabled for Lowest IDDQ Mode

When JP11 is connected to GND, TPS65290 provides only Vmicro voltage and other blocks are disabled

to maintain minimum power consupmtion. Therefore the SPI communication doesn’t work at Vmicro only.

Use Table 5 for the proper jumper connection for Vmicro only mode.

Table 5. Jumper Connections for Low-IDDQ Measurement

Vmicro MODE FIT THESE JUMPERS DO NOT FIT THESE JUMPERS JP11, JP13

TPS65290BM JP1, JP4, JP8 JP8A, JP10 GND

TPS65290ZB JP1, JP4, JP10, JP8A JP8 GND

TPS65290LM JP1, JP4, JP10, JP8A JP8 GND

The default value of the micro and buck/boost are described in Table 6. The buck-boost can be enabled

by connecting JP13 to Vmicro. Keep in mind that the loading of an oscilloscope probe or a multi-meter can

increase the input current.

Low IDDQ PMIC for Battery Energy Harvesting Applications SLVU906–April 2013

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