ADP2291_15 Datasheet, PDF (3/20 Pages) Analog Devices – Compact, 1.5 A Linear Charger for Single-Cell Li Battery

ADP2291
SPECIFICATIONS
VIN = 5.5 V, VBAT = 4.2 V, RADJ open, TA = –40°C to +85°C, typical values are at 25°C, unless otherwise noted.¹
Table 1.
Parameter
POWER SUPPLY, IN
Input Voltage
Current Draw
BATTERY VOLTAGE, BAT
Voltage Accuracy, End-of-Charge (VBAT, EOC)
Load Regulation, No Battery
Current Draw
Current Draw
Reverse Leakage Current
FAST CHARGE MODE
Sense Voltage Setpoint (VRS)
Sense Voltage Setpoint (VRS)
Current Regulation Adjustment
PRECHARGE MODE
Sense Voltage Setpoint (VRS)
Sense Voltage Setpoint (VRS)
BAT Precharge Threshold
Hysteresis
SHUTDOWN MODE
ADJ Shutdown Threshold
Hysteresis
Pull-Up Current from ADJ
POWER-DOWN MODE
VIN Power-Down Threshold
Hysteresis
VIN_Good Comparator
Threshold (VIN > VBAT)
Hysteresis
EOC COMPARATOR
Current Threshold
Current Threshold
Hysteresis
RESTART COMPARATOR
BAT Restart Threshold
Conditions
Fast charge/precharge/end-of-charge modes
Timeout/shutdown/battery fault
TA = 0°C to +50°C
VIN = 4.5 V to 12 V
VIN – VCS = VRS/10
VIN – VCS = 0 to VRS
Timeout mode, VIN = 4.5 V to 12 V
Battery fault/shutdown mode, VIN = 4.5 V to 12 V
Power-down mode: VIN = float, VBAT = 4.2 V
VIN – VCS, RADJ = open
VIN = 4.5 V to 12 V
VBAT = 3.6 V
VIN – VCS, RADJ = 100 kΩ
VIN = 4.5 V to 12 V
VBAT = 3.6 V
Per V of (3 V – VADJ)
VIN – VCS, RADJ = open
VIN = 4.5 V to 12 V
VBAT = 2 V
VIN – VCS, RADJ = 100 kΩ
VIN = 4.5 V to 12 V
VBAT = 2 V
VBAT rising
VADJ falling, VIN = 4.5 V
VADJ = 0
VIN rising
VIN rising
VIN – VCS falling, RADJ = open, relative to VRS
VIN – VCS falling, RADJ = 100 kΩ, relative to VRS
VIN > 4.5 V, VBAT falling, relative to VBAT, EOC
Min Typ Max Unit
4.5
12
V
6
9
mA
1.4 1.8
mA
4.158 4.2 4.242 V
−80
mV
45
µA
0.1 1
µA
0.1
µA
140 150 160 mV
40
50 60
mV
67
mV/V
10
15 20
mV
5
10 15
mV
2.65
2.85 V
70
mV
0.30
0.45 V
40
mV
40
µA
3.6
4
V
220
mV
125 170 220 mV
110
mV
7
10 13
%
6
10 16
%
12
mV
−170
mV
Rev. A | Page 3 of 20