Texas Instruments SLUU477 User Manual download pdf (Page 5)

BQ24210 EVM

HPA678

GND

VBUS

GND

BAT

APPLICATION CIRCUIT

Iin

Power supply

IBAT

Load #1

JP1

LED

CHG

JP4

JP5 JP7 JP6 JP2

JP3

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Test Summary

2.5 Equipment

2.5.1 Power Supplies

Power Supply #1 (PS#1): a power supply capable of supplying 20-V at 1-A is required.

2.5.2 Loads

LOAD #1 A 20V (or above), 1A (or above) electronic load that can operate at constant current and

constant voltage mode.

Or: equivalent.

2.5.3 Meters

Four Fluke 75 multi-meters, (equivalent or better)

Or: Two equivalent voltage meters and two equivalent current meters.

The current meters must be capable of measuring 1A+ current.

2.6 Equipment Setup

1. Set the power supply #1 (PS#1) for 6.5V ± 200mVDC, 1A ± 0.1A current limit and then turn off supply.

2. Connect the output of PS#1 in series with a current meter (multi-meter) to J1 (VBUS, GND).

3. Connect a voltage meter across J1 (VBUS, GND).

4. Connect Load #1 in series with a current meter to J2 (VBAT, GND). Turn off Load #1.

5. Connect a voltage meter across J2 (VBAT, GND).

6. Check all jumper shunts. JP1: OFF; JP2: OFF; JP3: OFF; JP4: OFF; JP5: connect 1-2 (External TS);

JP6: connect 2-3 (VBUS); JP7: connect 1-2 (charger OFF).

Figure 1. Original Test Setup for HPA678 (bq24210 EVM)

SLUU477–December 2010 800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger with Power Path

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Texas Instruments SLUU477 User Manual Page 5