10.2 Typical Performance Curves
Using circuit shown in Figure 23, TA = 25°C, unless otherwise specified.
![bq24157 Adapter
Insertion bq24157 adp1_ins_lusa27.gif](/ods/images/JAJSEC4E/adp1_ins_lusa27.gif)
VBUS = 0-5V, |
Iin_limit = 500mA, |
Voreg = 4.2V |
VBAT = 3.5V, |
ICHG = 550mA, |
32S mode |
Figure 25. Adapter Insertion
![bq24157 Battery Detection at
Power Up bq24157 pwrup_153_lusa27.gif](/ods/images/JAJSEC4E/pwrup_153_lusa27.gif)
VBUS = 5 V |
No Battery Connected |
|
Figure 27. Battery Detection at Power Up
![bq24157 BOOST Waveform (PFM
Mode) bq24157 boost1_pfm_lusa27.gif](/ods/images/JAJSEC4E/boost1_pfm_lusa27.gif)
VBUS = 5.05 V, |
VBAT = 3.5V, |
IBUS = 42 mA |
Figure 29. BOOST Waveform (PFM Mode)
![bq24157 Load Step Up Response
(BOOST Mode) bq24157 stp1_up_res_lusa27.gif](/ods/images/JAJSEC4E/stp1_up_res_lusa27.gif)
VBUS = 5.05 V, |
VBAT = 3.5V, |
IBUS = 0-217 mA |
Figure 31. Load Step Up Response (BOOST Mode)
![bq24157 Battery
Insertion/Removal (HOST Mode) bq24157 bat1_ins_rm_lusa27.gif](/ods/images/JAJSEC4E/bat1_ins_rm_lusa27.gif)
VBUS = 5 V |
VBAT = 3.4 V |
Iin_limit = 500 mA |
Figure 26. Battery Insertion/Removal (HOST Mode)
![bq24157 BOOST Waveform (PWM
Mode) bq24157 boost1_pwm_lusa27.gif](/ods/images/JAJSEC4E/boost1_pwm_lusa27.gif)
VBUS = 5.05 V, |
VBAT = 3.5V, |
IBUS = 217 mA |
Figure 28. BOOST Waveform (PWM Mode)
![bq24157 Load Step Up Response
(BOOST Mode) bq24157 load_stepup-resp_boost_lusax5.gif](/ods/images/JAJSEC4E/load_stepup-resp_boost_lusax5.gif)
VBUS = 5.05, |
VBAT = 3.5V, |
IBUS = 0-360 mA |
Figure 30. Load Step Up Response (BOOST Mode)
![bq24157 Load Step Down Response
(BOOST Mode) bq24157 load_stepdown-resp_boost_lusax5.gif](/ods/images/JAJSEC4E/load_stepdown-resp_boost_lusax5.gif)
VBUS = 5.05, |
VBAT = 3.5V, |
IBUS = 360-0 mA |
Figure 32. Load Step Down Response (BOOST Mode)