Texas Instruments BQ24350EVM - BQ24350 DSG EVM for Li-Ion Charger Front-End Protection IC BQ24350EVM BQ24350EVM 데이터 시트
제품 코드
BQ24350EVM
U1
U2
CFET APPLICATION
CIRCUIT
CIRCUIT
JP1
JP2
JP3
JP4
JP5
JP6
JP7
J4
BAT-
BAT+
DC-
DC+
F
AUL
T
VBA
T
GND
OUT
CHGIN
J3
J2
J1
HPA398 bq243
EVM
5x
BA
T+
GA
TDR
V
BA
TEN
V
Power
Supply 1
Load
2
V
I
Ibat
Load
1
I
I
2.4
Procedure
2.4.1
Charger Current and Voltage Regulation
2.4.2
CFET Input Overvoltage Protection
2.4.3
CFET Load Overcurrent Protection
www.ti.com
Test Summary
Figure 1. Original Test Setup for HPA398 (bq2435x DSG EVM)
1. Ensure that steps in
are followed.
2. Enable output of PS 1.
3. Increase the output voltage of PS 1 to 5 V
3. Increase the output voltage of PS 1 to 5 V
±
0.1 V.
4. Enable output of Load 2.
Measure
→
V(J2(OUT)) = 3.6 V
±
200 mV
Measure
→
Ibat = 560 mA
±
70 mA
Observe
→
D2 on, D3 on, D6 off, D7 on.
1. Increase the voltage of PS 1 to 8 V
±
0.1 V.
Observe
→
D2 on, D3 off, D6 off, D7 off.
2. Decrease the voltage of PS 1 to 5 V
±
0.1 V.
Observe
→
D2 on, D3 on, D6off, D7 on.
1. Enable the output of the Load 1.
Observe
→
D2 on, D3 off, D6 off, D7 off.
2. Disable the output of the Load 1.
Observe
→
D2 on, D3 on, D6 off, D7 on.
3. Decrease the voltage of PS 1 to 0 V
±
0.1 V.
SLUU365 – June 2009
bq2435x DSG EVM for Li-Ion Charger Front-End Protection IC
5