Equipment Setup, Load, Meters | Texas Instruments BQ24351EVM

Test Summary

www.ti.com

2.2.2Load 1

A 10-V (or above), 2-A (or above) electronic load that can operate in constant-current mode.

2.2.3Load 2

A 10-V (or above), 2-A (or above) electronic load that can operate in constant-voltage mode.

2.2.4Meters

Four Fluke 75 multimeters (equivalent or better)

Or:

Three equivalent voltage meters and one equivalent current meter

The current meter must be capable of measuring 2-A+ current.

2.2.5Wire Gauge

All wires connected to the EVM input power supply and output load must be at least AWG 22. The maximum current is up to 1 A.

2.3Equipment Setup

1.Set PS 1 for 0 V ±100 mVdc, 2 ± 0.1 A current limit, and then disable the output.

2.Connect the output of PS 1 to J1 (DC+, DC–).

3.Connect a voltage meter across J1 (DC+, DC–).

4.Connect the output of load 1 in series with a current meter (multimeter) to J2 (CHGIN) and J3 (GND). Turn on the power of load 1. Set the load current to 1.5 A ±50 mA, but disable the output.

5.Connect the output of load 2 in series with a current meter (multimeter) to J4 (BAT+, BAT–).

6.Connect a voltage meter across J4 (BAT+, BAT–).

7.Set the voltage of load 2 to 3.6 V ±0.1 V, and disable output of load 2.

8.JP1: ON, JP2 (BATEN, GND): ON, JP3: OFF, JP4: ON, JP5: ON, JP6: ON, JP7: OFF.

After the preceding steps have been taken, the test setup for HPA666 (bq24351 DSG EVM) appears as is shown in Figure 1.

Supply 1

HPA666 bq24351EVM
	JP7
J1		JP1			J4
					V
DC+		U1			BAT+
					I
					Ibat
CFET APPLICATION
CIRCUIT			JP6	JP5	JP4
	JP3	JP2
					U2
FAULT VBAT	GATDRV CHGIN	BATEN OUT	BAT+ GND
J2			J3
					Load
			I		1
					I

Figure 1. Original Test Setup for HPA666 (bq24351 DSG EVM)

4	bq24351EVM for Li-Ion Charger Front-End Protection IC	SLUU455 –October 2010
		Submit Documentation Feedback