Product Specs

4.4. Charger Input Pin Specification
VCHG
Min
Typical
Max
Unit
Operating voltage (full device
specification)
4.75
5.0
5.75
V
Operating voltage (reduced charger
specification)
4.0
5.0
5.75
V
VCHG_PRESENT rising threshold
3.4
3.6
4.0
V
VCHG_PRESENT hysteresis
70
-
150
mV
Full operating range
VCHG_PRES
ENT
-
5.75
V
On chip pull-down (disabled when
VCHG_PRESENT =1)
10
20
30
kΩ
4.5. System LDO
Parameter Description
Min
Typical
Max
Unit
VCC4BAT Battery input voltage
2.8
-
4.2
V
VCC3SYS LDO output voltage
2.8
3.2
3.3
V
Load Current
-
-
200
mA
4.6. USB LDO
Parameter Description
Min
Typical
Max
Unit
VCC5USB USB Input voltage
2.8
-
4.2
V
VCC3SYS LDO output voltage
-
3.3
-
V
Load Current
-
-
200
mA
4.7. BATTERY CHARGE
Parameter Description
Min
Typical
Max
Unit
VCC5USB Chargerinputvoltage
4.75
5.0
5.75
V
I_trickle Charge Current at trickle mode
as percent of fast charge mode
-
10
-
%
I_fast Charge current at fast charge
mode
40
-
220
mA
V_end (Need Calibrated) VBAT voltage
when Charge End
-
4.2
-
V
4.8. Analog LDO/BUCK
Parameter Description
Min
Typical
Max
Unit
Analog LDO
VDDANA Analog LDO output voltage
1.6
1.8
2.4
V