SC8913 EVM USER GUIDE
SOUTHCHIP SEMICONDUCTOR
SOUTHCHIP CONFIDENTIAL
Copyright © 2018, Southchip Semiconductor Technology (Shanghai) Co., Ltd
20
5.9
Other Test
fsw = 300kHz, L = 2.2uH, RS1 = 10mR, RS2 = 5mR, COMP = 10k + 22nF
Test Condition
Test Result
Trickle charge threshold:
VBUS = 5V, Set VBAT_TARGET=4.2V
VBAT_TRCKLE=2.92V(69.5%*VBAT_TARGET)
Trickle charge current:
VBUS = 5V, Set IBUS_LIM=2A
IBUS_TRCKLE=0.251A (12.5%*IBUS_LIM)
Charge termination current threshold:
VBUS = 5V, Set IBUS_LIM=2A, EOC_SET= 0
IBUS_EOC=0.231A (11.5%*IBUS_LIM)
Recharge voltage threshold:
VBUS=12V, Set VBAT_TARGET=4.2V
VBAT_RECHRG=4.01V (95.5%*VBAT_TARGET)
Battery over voltage threshold:
VBUS = 5V, Set VBAT_TARGET=4.2V
VBAT_OVP=4.398 (105%*VBAT_TARGET)
VINREG voltage:
VBUS=5V, Set VINREG=4.5V
VINREG=4.531V
VBAT under voltage threshold:
VBAT_UVLO=2.40V
VBUS under voltage threshold:
VBUS_UVLO=2.53V
VBUS standby current:
VBUS=5V, PSTOP=3.3V, AD_START=0
I_SB_VBUS =68.9uA
(Note: VBUS resistor divider consumes 40uA, due to VBAT
flowing through body diode to VBUS)
VBUS standby current:
VBUS=5V, PSTOP=3.3V, AD_START=1
I_SB_VBUS_ADC =633uA
VBUS supply current:
VBUS=5V, PSTOP=0V
IQ_VBUS=1.97mA
