AAT3670(2007) データシートの表示（PDF） - Advanced Analogic Technologies
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AAT3670 Datasheet PDF : 32 Pages
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AAT3670
1.6A Dynamic Battery Charger
and Power Manager
Electrical Characteristics (continued)
VADP = 5V, TA = -25°C to +85°C; unless otherwise noted, typical values are TA = 25°C.
Symbol Description
Conditions
Battery Charge Voltage Regulation
VBAT_EOC
Output Charge Voltage
Regulation1
VMIN
VRCH
Preconditioning Voltage Threshold
Battery Recharge Voltage
Threshold
VCHR_TH
Default ADP Charge Reduction
Threshold
Default USB Charge Reduction
Threshold
VCHR_REG
CHRADP and CHRUSB Pin
Voltage Accuracy
Current Regulation
ILIM_ADP
ILIM_USB
ILIM_BAT
ICH_CC_ADP
Maximum ADP Current Limit
Maximum USB Current Limit
BAT_OUT Current Limit (Fixed)
ADP Charge Constant Current
Charge Range
ICH_CC_USB_H
USB High-Power Charge
Constant Current Charge Range
ICH_CC_USB_L
USB Low-Power Charge
Constant Current Charge Range
ΔICH_CC/ICH_CC
Constant Current Charge
Current Regulation Tolerance
For 4.2V Cells
CHRADP Open;
Reduce Charge
Current When ADP
is Below VCHR_TH
CHRUSB Open;
Reduce Charge
Current When USB
is Below VCHR_TH
USBSEL = 5V
USBSEL = 0V
ICH_CC_ADP = 1A
ICH_CC_USB_H = 0.5A
ICH_CC_USB_L = 0.1A
ICH_TKL_ADP ADP Charge Trickle Charge
ICH_TKL_USB_H
ICH_TKL_USB_L
USB High-Power Charge
Trickle Charge
USB Low-Power Charge
Trickle Charge
USBSEL = 5V
USBSEL = 0V
Min
Typ
Max Units
4.158
4.20
4.242
V
2.8
2.9
3.0
V
VBAT_EOC - VBAT_EOC - VBAT_EOC -
0.17
0.1
0.05
V
4.6
V
4.5
1.9
2.0
2.1
V
1.6
A
0.9
A
2.3
A
100
1600
mA
50
900
mA
10
180
mA
-12
12
%
10
%
ICH_CC_ADP
10
%
ICH_CC_USBH
50
%
ICH_CC_USBL
1. The output charge voltage accuracy is specified over the 0° to 70°C ambient temperature range; operation over the -25°C to +85°C
temperature range is guaranteed by design.
6
3670.2007.02.1.1
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