SC824 Datasheet, PDF (4/29 Pages) Semtech Corporation – Single-cell Li-Ion Charger Tri-Mode with Timer and NTC

SC824
Electrical Characteristics (continued)
Parameter
Battery Leakage Current
IPRGM Programming Resistor
I Fast-Charge Current, adapter mode
BAT
or USB High Power mode
USB Low Power mode Fast-Charge
current
I Pre-Charge Current
BAT
I_BAT Termination Current
VIN - BAT Dropout Voltage
IPRGM Fast-charge Regulated Voltage
IPRGM Pre-charge Regulated Voltage
IPRGM Termination Threshold Voltage
VIN USB Modes Under-Voltage Load
Regulation Limiting Voltage
Thermal Limiting Threshold
Temperature
Thermal Limit Rate
VSYS Output Voltage
VSYS Output Current
EN_NTC Thresholds
EN_NTC Hysteresis
EN_NTC Disable/Reset Hold Time ⁽³⁾
Symbol
lBAT
V0
lBAT
DIS
lBAT
MON
R
IPRGM
I
FQ
I
FQ_Low
I
PreQ
I_TERM
V
DO
V
IPRGM_FQ
V
IPRGM_PQ
VT
IPRGM_TERM
V
UVLR
T
TL
i
T
V
VSYS
I_VSYS
RT
NTC_DIS
RT
NTC_HF
RT
NTC_CR
RT
NTC_NBR
VT
NTC_HYS
t
NTC_DIS_H
Conditions
V = V , V = 0V, V = 0V
BAT
CV VIN
EN_NTC
V = V , V = 5V, V = 0V
BAT
CV VIN
EN_NTC
V = V , V = 2.3V,
BAT CV EN_NTC
V = 0V and charging terminated
RTIME
R = 2.94kΩ, VT < V < V
IPRGM
PreQ
BAT
CV
R = 4.42kΩ, VT < V < V
IPRGM
PreQ
BAT
CV
R = 2.94kΩ, VT < V < V
IPRGM
PreQ
BAT
CV
R = 4.42kΩ, VT < V < V
IPRGM
PreQ
BAT
CV
R = 2.94kΩ, 1.8V < V < VT
IPRGM
BAT
PreQ
R = 4.42kΩ, 1.8V < V < VT
IPRGM
BAT
PreQ
R = 2.94kΩ, V = V
IPRGM
BAT
CV
R = 4.42kΩ, V = V
IPRGM
BAT
CV
I = 700mA, 0°C ≤ T ≤ 125°C
BAT
J
V = 5.0V, VT < V < V
VIN
PreQ
BAT
CV
V < VT
BAT
PreQ
V =V
BAT
CV
5mA ≤ VIN supply current limit ≤
500mA, V = 2V,
MODE
R = 2.94kΩ (694mA)
IPRGM
T >T
J TL
V ≥ 5V, I ≤ 1mA
VIN
VSYS
Charger Disable/Reset (Falling)
NTC Hot (Falling)
NTC Cold (Rising)
No-Battery Mode select (Rising)
V = 5V
VIN
Momentary disable resets charger
Min
2.05
643
427
105
69
105
69
59
38
4.40
9
29
74
94
500
Typ
0.1
0.1
0.1
694
462
139
92
139
92
69
46
0.4
2.04
0.408
0.204
4.51
130
-50
4.6
10
30
75
95
45
Max
1
1
Units
μA
μA
1
μA
29.4
kΩ
745
mA
497
173
mA
116
173
116
mA
80
mA
55
0.6
V
V
V
V
4.70
V
°C
1
11.5
31
76
96
mA/ °C
V
mA
%V
VSYS
%V
VSYS
%V
VSYS
%V
VSYS
mV
ns
4