Datasheet

U1
U2
CFET APPLICATION
CIRCUIT
JP1
JP2JP3
JP4
JP5JP6
JP7
J4
BAT-
BAT+
DC-
DC+
FAULT
VBAT
GND
OUT
CHGIN
J3J2
J1
HPA398bq243 EVM5x
BAT+
GATDRV
BATEN
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 Section 2.3 are followed.
2. Enable output of PS 1.
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
Submit Documentation Feedback