Datasheet

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Test Summary

4.1 Equipment

• Power supply +5.1 ±0.1 V, current limit set to 1.5 ±0.1 A

• Battery: 4.2 V LiCoO2 or equivalent

• Three Fluke 75 DMMs (equivalent or better)

• Oscilloscope, Model TDS220 (equivalent or better)

4.2 Equipment and EVM Setup

Jack/Component Connect or Adjustment To:

J1–DC+ Power supply positive, preset to 5 VDC, 1-A current limit.

J1–DC– Power supply ground

J2–BAT+ Positive Battery Pack Terminal

J2–BAT– Negative Battery Pack Terminal

JMP1 (bq24040) Apply shunt for Pre-TERM connection.

JMP2 Apply shunt for PG LED connection.

JMP3 Apply shunt for ISET2 connection.

JMP4 Apply shunt for CHG LED connection.

JMP5 Apply shunt for TS (BAT_EN on bq24041) connection.

JMP6 No shunt

R2 (R

ISET

) Adjust R2 for 1k between TP2 and GND

R3 (R

PRE-TERM

) Adjust R3 for 2k between TP4 and GND

R11 ( R

) Adjust R11 for 10k between TP9 and GND

Figure 1. EVM Setup

SLUU377–September 2009 0.8-A Single-Input, Single-Cell Li-Ion Battery Charger

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