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ADP2291ARMZ-R7 数据表(PDF) 3 Page - Analog Devices

部件名 ADP2291ARMZ-R7
功能描述  Compact, 1.5 A Linear Charger for Single-Cell Li Battery
PDF  20 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP2291ARMZ-R7 数据表(HTML) 3 Page - Analog Devices

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ADP2291
Rev. 0 | Page 3 of 20
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. Electrical Characteristics
Parameter
Conditions
Min
Typ
Max
Unit
Power Supply, IN
Input Voltage
4.5
12
V
Current Draw
Fast charge/precharge/end-of-charge modes
Timeout/shutdown/battery fault
6
1.4
9
1.8
mA
mA
Battery Voltage, BAT
Voltage Accuracy, End-of-charge (VBAT, EOC)
TA = 0°C to +50°C
VIN = 4.5 V to 12 V
VIN – VCS = VRS/10
4.158
4.2
4.242
V
Load Regulation, No Battery
VIN – VCS = 0 to VRS
–80
mV
Current Draw
Timeout mode
VIN = 4.5 V to 12 V
45
µA
Current Draw
Battery fault/shutdown mode
VIN = 4.5 V to 12 V
0.1
1
µA
Reverse Leakage Current
Power-down mode
VIN = float, VBAT = 4.2 V
0.1
µA
Fast Charge Mode
Sense Voltage Setpoint (VRS)
VIN – VCS, RADJ = open
VIN = 4.5 V to 12 V
VBAT = 3.6 V
140
150
160
mV
Sense Voltage Setpoint (VRS)
VIN – VCS, RADJ = 100 kΩ
VIN = 4.5 V to 12 V
VBAT = 3.6 V
40
50
60
mV
Current Regulation Adjustment
per V of (3 V – VADJ)
67
mV/V
Precharge Mode
Sense Voltage Setpoint (VRS)
VIN – VCS, RADJ = open
VIN = 4.5 V to 12 V
VBAT = 2 V
10
15
20
mV
Sense Voltage Setpoint (VRS)
VIN – VCS, RADJ = 100 kΩ
VIN = 4.5 V to 12 V
VBAT = 2 V
5
10
15
mV
BAT Precharge Threshold
VBAT rising
2.65
2.85
V
Hysteresis
70
mV
Shutdown Mode
ADJ Shutdown Threshold
VADJ falling, VIN = 4.5 V
0.30
0.45
V
Hysteresis
40
mV
Pullup current from ADJ
VADJ = 0
40
µA
Power-Down Mode
VIN Powerdown Threshold
VIN rising
3.6
4
V
Hysteresis
220
mV
VIN_Good Comparator
Threshold (VIN > VBAT)
VIN rising
125
170
220
mV
Hysteresis
110
mV
EOC Comparator
Current Threshold
VIN – VCS falling, RADJ = open, relative to VRS
7
10
13
%
Current Threshold
VIN – VCS falling, RADJ = 100 kΩ, relative to VRS
6
10
16
%
Hysteresis
12
mV
Restart Comparator
BAT Restart Threshold
VIN > 4.5 V, VBAT falling, relative to VBAT, EOC
–170
mV



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