Datasheet

Test Procedure

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Table 3. Test Points

TP NAME LOCATION SIGNAL

TP1 PWR_VIN W PWR_VIN input pin 1

TP2 GND W

TP3 PWR_VMAX W PWR_VMAX PIN 3

TP4 VMAX W VMAX PIN 4

TP5 LDO IN W LDO input pin 5

TP6 LDO_OUT W LDO output pin 6

TP7 PWR_LDO1 W PWR_LDO1 switch output pin 7

TP8 GND W

TP9 GND E

TP12 PWR_BB2 E PWR_BB2 switch pin 12

TP14 PWR_BB1 E PWR_BB1 switch pin 13

TP15 BB_OUT E Buck boost output pin 15

TP16 BB_LX2 N LX2 node BB (pin 16)

TP18 BB_LX1 N LX1 node BB (pin 18)

TP20 INT N Interruption pin 20

TP21 MISO N MISO pin 21 SPI

2 Test Procedure

2.1 Hardware and Software Set Up

2.1.1 Power Supply

A power supply capable of supplying 2.2 V - 5 V, 3 A, is required. A short cable from the power supply to

the EVM input is recommended. If long line is a must, a 2,200-µF capacitor is suggested at the input for

better input supply stability.

2.1.2 Load

Use electronic load or other variable resistor to evaluate different load conditions.

2.1.3 Input Current Meters

The current meters must have low impedance when measuring the efficiency to decrease the voltage drop

affect. Placing a 2,200-µF capacitor at the input side of the EVM will guarantee the low impedance.

2.1.4 USB2ANY Communication Kit

The USB2ANY serves as an interface adapter between a host PC and a TPS65290 EVM. The

communication between the USB2ANY and the host PC is via USB, while the communication between the

USB2ANY and the TPS56290 EVM is via an SPI. The USB2ANY hardware is based on the TI

MSP430F5529 16bit Microcontroller with integrated USB 2.0.

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

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