ADP3408(Rev0) 查看數據表（PDF） - Analog Devices
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ADP3408 Datasheet PDF : 16 Pages
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ADP3408
Parameter
BATTERY CHARGER
Charger Output Voltage
Load Regulation
CHRDET On Threshold
CHRDET Off Threshold
CHRDET Off Delay4
CHRIN Supply Current
BATTERY CHARGER
Current Limit Threshold
High Current Limit
(UVLO Not Active)
Low Current Limit
(UVLO Active)
ISENSE Bias Current
Symbol
Condition
Min Typ Max Unit
BATSNS
∆BATSNS
CHRIN – BATSNS
CHRIN – BATSNS
4.35 V ≤ CHRIN ≤ 10 V3
CHGEN = Low, No Load
CHRIN = 5 V
0 ≤ CHRIN – ISENSE
< Current Limit Threshold
CHGEN = Low
CHRIN < VBAT
CHRIN = 5 V
4.150
30
15
4.200
90
45
6
0.6
4.250 V
15
mV
150
mV
100
mV
ms/nF
mA
CHRIN – ISENSE
CHRIN = 5 V dc
VBAT = 3.6 V
CHGEN = Low
VBAT = 2 V
CHGEN = Low
CHRIN = 5 V
142
160
190
mV
20
35
mV
200
µA
End-of-Charge Signal Threshold
CHRIN – ISENSE
CHRIN = 5 V
VBAT > 4.0 V
CHGEN = Low
14
35
mV
EOC Reset Threshold
VBAT
CHGEN = Low
3.82
3.96
4.10 V
GATEDR Transition Time
tR, tF
CHRIN = 5 V
0.1
VBAT > 3.6 V
CHGEN = High, CL = 2 nF
1
µs
GATEDR High Voltage
GATEDR Low Voltage
Output High Voltage
(EOC, CHRDET)
Output Low Voltage
(EOC, CHRDET)
Battery Overvoltage
Protection Threshold
(GATEDR → High)
Battery Overvoltage
Protection Hysteresis
VOH
VOL
VOH
VOL
BATSNS
BATSNS
CHRIN = 5 V
VBAT = 3.6 V
CHGEN = High,
GATEIN = High
IOH = –1 mA
CHRIN = 5 V
VBAT = 3.6 V
CHGEN = High
GATEIN = Low
IOL = 1 mA
IOH = –250 µA
IOL = +250 µA
CHRIN = 7.5 V
CHGEN = High
GATEIN = Low
CHRIN = 7.5 V
CHGEN = High
GATEIN = Low
4.5
V
0.5
V
2.4
V
0.25 V
5.30
5.50
5.70 V
200
mV
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
2This feature is intended to protect against catastophic failure of the device. Maximum allowed operating junction temperature is 125ºC. Operation beyond
125ºC could cause permanent damage to the device.
3No isolation diode present between charger input and battery.
4Delay set by external capacitor on the RESCAP pin.
Specifications subject to change without notice.
–4–
REV. 0
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