STBC21 Datasheet, PDF (10/54 Pages) STMicroelectronics – LI+ battery charger with thermal regulation

Electrical characteristics
4
Electrical characteristics
STBC21
T_J = -25 °C to 85 °C unless otherwise specified. Refer to the typical application circuit.
Typical values are referred to T_J = 25 °C.
Table 6. Electrical characteristics (DC)
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
V_CC
V_{CC_USB}
V_BAT
Minimum V_CC to enable charging
without quasi-pulse
Supply current
I_CC
(excluding LEDs and
battery current)
I_STBY
I_BAT standby current
(charge terminated)
I_{PRE_CH}
Nominal pre-charge / 0V-charge
current
Fast charge ⁽¹⁾
3.0 V<V_CC<9.0 V
I_BAT=100 mA
Shutdown
2.6 V<V_CC<2.85 V
Standby
(charge terminated) 2.8
V<V_CC<9.0 V
0 V<V_CC<9.0 V
V_BAT=4.2 V
V_TEMP=1.2 V
2.8 V<V_CC<9.0 V
I_{F_CH}
I_TERM
I_{BAT_OCP}
I_VREF
I_PHC
I_{Lk_PHC}
I_SINK
I_DETECT
I_LED
V_{CC_POR}
Nominal fast-charge current
Set by Ext. resistor
R₁=1.25 kΩ
Charge termination current
10 mA steps
from 40 mA to 190 mA
4.5 V<V_CC<9.0 V
V_BAT=4.2 V, TIMER3=0
I_BAT overcurrent protection
V_REF current limit
5.0 V<V_CC<9.0 V
Photo-coupler current
V_CC=5.0 V_, V_BAT=3.0 V
Photo-coupler leakage
V_CC=5.0 V_, V_BAT=4.8 V,
V_PHC=5.0 V
Sunk current during battery detection C_OUT=10 µF
Sunk current during battery detection C_OUT=10 µF
LED current
V_REF=2.9 V, VF_LED=2 V
R_LED=90 kΩ
Power-on reset threshold
2.6
3.0
48
72
96
744
32
152
2.47
4.5
60
90
120
800
40
…
190
1.35
30
10
2
1
1
10
2.6
9.0
V
V
4.25
V
750
µA
80
µA
450
µA
-50
µA
72
108 mA
144
856 mA
48
mA
228
A
mA
mA
µA
mA
mA
mA
2.73
V
10/54
Doc ID 023256 Rev 1