Texas Instruments BQ24380 Li+ Charger Front End Protection IC Evaluation Module BQ24380EVM BQ24380EVM Datenbogen
Produktcode
BQ24380EVM
2.4.2
CFE Input Overvoltage Protection
2.4.3
CFE Load Overcurrent Protection
2.4.4
CFE Battery Overvoltage Protection
2.4.5
Charge IC Test Setup
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Test Summary
V.
Measure
Measure
→
V(J2(OUT)) = 0 V
±
500 mV
Observe
→
D2 on, D3 off.
6. Uninstall JMP3 (enable U1).
Measure
→
V(J2(OUT)) = 5.5 V
±
200 mV (For HPA245-001, -002, -009 only)
Measure
→
V(J2(OUT)) = 4.5 V
±
200 mV (For HPA245-003 only)
Measure
→
V(J2(OUT)) = 5 V
±
200 mV (For HPA245-004, -005, -006, -007, -008, -010, -011, 012,
-013 only)
Observe
Observe
→
D2 on, D3 on.
1. (For HPA245-001, -002, -003, -004, -013 only) Increase the voltage of PS#1 to 11V
±
0.1V
Measure
→
V(J2(OUT)) = 0 V
±
500 mV
Observe
→
D2 on, D3 off.
2. (For HPA245-005, -006, -007, -008, -009, -010, -011, -012 only) Increase the voltage of PS#1 to 8 V
±
0.1 V.
Measure
→
V(J2(OUT)) = 0 V
±
500 mV
Observe
→
D2 on, D3 off.
3. Decrease the voltage of PS#1 to 5 V
±
0.1 V.
Observe
→
D2 on, D3 on
1. (For HPA245-009, -010, skip 2.4.3 test and go to 2.4.4 test.)
2. Enable the output of the Load #1.
2. Enable the output of the Load #1.
Observe
→
D2 on, D3 on.
3. (For HPA245-001, -002, -003, -004, -013 only) Increase the current of Load #1 to 0.5A
±
0.1A
Observe
→
D2 on, D3 off.
4. (For HPA245-005, -006, -007, -008, -011, -012 only) Increase the current of Load #1 to 1.2 A
±
0.1 A.
Observe
→
D2 on, D3 off.
5. Turn off Load #1.
6. Decrease the voltage of PS#1 to 0 V
6. Decrease the voltage of PS#1 to 0 V
±
0.1 V.
1. Increase the output voltage of PS#1 to 5 V
±
0.1V.
Observe
→
D2 on, D3 on
2. Increase the voltage of PS #2 to 4.6 V
±
0.1V.
Observe
→
D2 on, D3 off.
3. Decrease the voltage of PS #2 to 3.7 V
±
0.1V.
Observe
→
D2 on, D3 on.
4. Turn off all the power supplies and loads. Remove all connection between test board and power
supplies or loads.
1. Set the power supply #1 for 0 V
±
100 mVDC, 2-A
±
0.1-A current limit and then disable the output.
2. Connect the output of power supply #1 to J3 (CHG IN, DC–).
3. Connect a voltage meter across J3 (CHG IN, DC–).
4. Set the voltage of Load #2 to 3.6 V
3. Connect a voltage meter across J3 (CHG IN, DC–).
4. Set the voltage of Load #2 to 3.6 V
±
0.1 V, disable output of Load #2.
5. Connect output of the Load #2 in series with a current meter (multimeter) to J4 (BAT+, BAT–). Ensure
that a voltage meter is connected across J4 (BAT+, BAT–).
SLUU291A – August 2007 – Revised April 2008
bq2430x/1x/8x DSG EVM (HPA245) for Li+ Charger Front-End Protection IC
5