Texas Instruments BQ2461X, BQ2463X EVM manual Equipment Setup, Meters

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2.2.5METERS

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

2.3Equipment 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.

bq24610/616/617/30￿EVM

J1

HPA422

PH

Power supply￿#1

	I
Iin	V

ACPWR TP1

ACPWR

PGND

TP2

J3

VCC

ACSET

ISET1

ISET2

GND

U1

JP4

APPLICATION￿CIRCUIT

TP12

SYS

J5

SYS

BAT

TP9 PGND

VBAT

Isys

		I	Load
V
			#1
		I	Load
V	Ibat
			#2
		Oscilloscope
			I

	VREF
J2	JP3

VEXT	VEXT
	HI
GND
	L	JP1
TTC	O	JP2	JP5

/ACDRV /BATDRV CE PG /STAT1 /STAT2

J4

PG

STAT1

VREF

TS

Power

sup ply￿#2

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

SLUU396A –January 2010 –Revised July 2010 bq2461x/bq2463x EVM (HPA422) Multi-Cell Synchronous Switch-Mode Charger 5

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