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5 meters, 3 equipment setup, Power supply #1 – Texas Instruments BQ2461X User Manual

Page 5: Load #1 load #2, Power sup ply #2, Test summary

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bq24610/616/617/30 EVM

HPA422

ACPWR

J1

PGND

SYS

J5

PGND

BAT

VREF

JP3

PG

TS

APPLICATION CIRCUIT

PH

TP12
SYS

VBAT

TP1
ACPWR

STAT1

J3

J2

JP1

U1

JP5

J4

V

Iin

I

Power

supply #1

Isys

V

Ibat

V

I

Load

#1

Load

#2

I

TP2

JP2

GND

VEXT

TTC

ISET1

ACSET

ISET2

VEXT

GND

VREF

HI
L
O

Power

sup ply #2

I

/ACDRV

/BATDRV

CE

PG

/STAT1

/STAT2

VCC

TP9

JP4

Oscilloscope

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Test Summary

2.2.5

METERS

Seven Fluke 75 multimeters, (equivalent or better)
Or: Four equivalent voltage meters and three equivalent current meters.
The current meters must be capable of measuring 5A+ current

2.3

Equipment Setup

1. Set the power supply #1 for 0V ± 100mVDC, 5.0 ± 0.1A current limit and then turn off supply.
2. Connect the output of power supply #1 in series with a current meter (multimeter) to J1 (VIN, GND).
3. Connect a voltage meter across J1 (VIN, GND).
4. Set the power supply #2 for 0V ± 100mVDC, 1.0 ± 0.1A current limit and then turn off supply.
5. Connect the output of the power supply #2 to J4 and J5 (TS, GND).
6. Connect Load #1 in series with a current meter to J5 (SYS, GND). Turn off Load #1
7. Connect Load #2 in series with a current meter to J5 (BAT, GND). Turn off Load #2.
8. Connect a voltage meter across J5 (BAT, GND).
9. Connect an oscilloscope's probe across J5 (BAT, GND)
10. Connect a voltage meter across J5 (SYS, GND).
11. JP1 (TTC and HI): ON, JP2: ON, JP3 (VPULLUP and VREF): ON, JP4: ON, JP5: OFF.

After the above steps, the test setup for HPA422 is shown in

Figure 1

.

Figure 1. Original Test Setup for HPA422 (bq2461x/bq2463x EVM)

5

SLUU396A – January 2010 – Revised July 2010

bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger

Copyright © 2010, Texas Instruments Incorporated

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