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| AAT8640 Datasheet, PDF (14/25 Pages) Advanced Analog Technology, Inc. – ONE-CELL LI-ION BATTERY PROTECTION IC | |||
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Advanced Analog Technology, Inc.
AAT8640 Series
AAT8640K DETECTION VOLTAGE AND DELAY TIME (25â)
PARAMETER
SYMBOL TEST CONDITION MIN
Over Charge Threshold Voltage
VC1
Detect rising edge of supply
voltage
4.20
Over Charge Release Voltage
Over Discharge Threshold
Voltage
VC2
Detect falling edge of supply
voltage
VD1
Detect falling edge of supply
voltage
VC1-0.3
2.201
Over Discharge Release Voltage
VD2
Detect rising edge of supply
voltage
VD1+0.5
Over Charge Delay Time
tC1
VDD = 3.6V to 4.5V
0.700
Over Discharge Delay Time
t D1
VDD = 2.8V to 2.2V
87.5
Detect Rising Edge of âVNâ Pin 80
Over Current Level 1 Detection
Voltage
VOC1
Voltage ( D out Response with tOC1
Delay Time)
Over Current Level 2 Detection
Voltage
Short Circuit Detection Voltage
Over Current Level 1 Detection
Delay Time
Over Current Level 2 Detection
Delay Time
Short Circuit Detection Delay
Time
VOC2
Vshort
t OC1
t OC2
t short
Detect Rising Edge of âVNâ
Pin Voltage ( Dout Response
with tOC2 Delay Time)
VDD = 3.0V , Detect Rising Edge
of âVNâ Pin Voltage ( D out
Response with t short Delay
Time)
VDD = 3.0V
400
VDD â1.7
5.6
Room Temp. â
1.4
Low or High Temp. â
1.1
VDD = 3.0V
VDD = 3.0V
Charger Detection Voltage
C out High Level Resistance
C out Low Level Resistance
Dout High Level Resistance
D out Low Level Resistance
Internal Resistance Between VN
and VDD
Internal Resistance Between VN
and GND
VCHR
Detect rising edge of â Dout â pin
voltage(when VD1ï¼VDDï¼VD2)
-2.0
R COH
VDD = 3.5V ;
C out =3.0V;VN=0V
1
R COL
VDD = 4.5V ;
C out =0.5V;VN=0V
150
R DOH
VDD = 3.5V ;
D out =3.0V;VN=0V
2.5
R DOL
VDD = 1.8V ;
D out =0.5V;VN=1.8V
2.5
R VND
VDD = 1.8V ; VN=0V
100
R VNG
VDD = 3.5V ; VN=3.5V
50
TYP
4.25
MAX UNIT
4.30
V
VC1-0.2 VC1-0.1 V
2.281 2.361 V
VD1+0.6 VD1+0.7 V
1.000 1.300 s
125 162.5 ms
100
120 mV
480
600 mV
VDD â1.3 VDD â0.9 V
8.0
10.4 ms
2.0
2.6
ms
2.0
3.4
ms
10
50
μs
-1.3
-0.6
V
2
10
kâ¦
602
2,380 kΩ
5.0
10.0 kΩ
5.0
10.0 kΩ
300
900 kΩ
150
300 kΩ
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â Advanced Analog Technology, Inc. â
Page 14 of 25
V2.0
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