A7B Просмотр технического описания (PDF) - AnaSem Semiconductors
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A7B Datasheet PDF : 23 Pages
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Rev. E09-06
Single-cell Li-ion / Li-polymer Battery Protection IC
A7B Series
ELECTRICAL CHARACTERISTICS
Items
Over-charge detection voltage
Vc = 4.0 to 4.5V
Over-charge hysteresis voltage
VHc = 0.0 to 0.4V
Over-discharge detection voltage
Vc = 2.0 to 3.0V
Charge over-current detection voltage
VIc = –0.25 to –0.05V
Discharge over-current detection voltage
VIdc = 0.05 to 0.40V
Load short-circuiting detection voltage
Symbol Min.
Typ.
Max.
Vc
VHc
Vdc
VIc
VIdc
Vshort
Detection voltage
Vc
–0.025
Vc
–0.030
VHc
–0.025
Vdc
×0.975
VIc
–0.030
VIdc
–0.020
Vc
Vc
VHc
Vdc
VIc
VIdc
Vc
+0.025
Vc
+0.030
VHc
+0.025
Vdc
×1.025
VIc
+0.030
VIdc
+0.020
–1.7
–1.3
–1.0
(Topr=25°C unless otherwise specified)
Conditions
Unit
Test
circuit
R1=330Ω
R1=330Ω
Topr = –5°C to +55°C 1)
R1=330Ω
Based on VDD, VDD=3.5V
V1
V1
V1
V1
V2
V2
V2
Input voltage
Input voltage between VDD and VSS
VDD
1.8
-
8.0 Internal operating voltage
V-
0V battery charge starting charger voltage Vcha
-
0.9
1.4 A7BxxxxA
V3
0V battery charge inhibiting battery voltage Vinh 0.7
1.2
1.7 A7BxxxxB
V3
Current consumption
Current consumption on operation
Iopr
-
3.0
6.0
VDD=3.5V, VM=0V
μA 4
Current consumption on shutdown
Isdn
-
-
0.1
VDD=VM=1.8V
μA 4
Output resistance
CO : Pch ON resistance
Rcop 1.5
3.0
4.5 CO=3.0V, VDD=3.5V, VM=0V
KΩ 5
CO : Nch ON resistance
Rcon 0.5
1.0
1.5 CO=0.5V, VDD=4.6V, VM=0V
KΩ 5
DO : Pch ON resistance
Rdop 1.7
3.5
5.0 DO=3.0V, VDD=3.5V, VM=0V
KΩ 5
DO : Nch ON resistance
Rdon 1.7
3.5
5.0
DO=0.5V, VDD=VM=1.8V
KΩ 5
Discharge over-current release resistance Rdwn 15.0
30.0
60.0 VDD=3.5V, VM=1.0V
KΩ 5
Over-charge detection delay time
tc=0.125s or 1.0s or 3.75s
Over-discharge detection delay time
tdc=31ms or 125ms
Charge over-current detection delay time
tic=8ms or 125ms or 1000ms
Discharge over-current detection delay time
Detection delay time
tc
tc
×0.70
tc
tc
VDD=Vc-0.2V→Vc+0.2V,
×1.30 VM=0V
tdc
tdc
×0.70
tdc
tdc VDD=Vdc+0.2V→Vdc-0.2V,
×1.30 VM=0V
tic
tic
×0.70
tic
tic
×1.30
VDD=3.5V, VM=0V→-1.0V
tidc
5.6
8.0
10.4 VDD=3.5V, VM=0V→1.0V
sec 6
msec 6
msec 6
msec 6
Load short-circuiting detection delay time tshort 190
370
550 VDD=3.5V, VM=0V→3.5V
μsec 6
Release delay time
Release delay time 1
Over-discharge release
Charge over-current release
Discharge over-current release
Load short-circuiting release
Release delay time 2
Over-charge release
trel1
1.0
trel2
8.0
2.0
3.0
16.0
24.0
VDD=Vc+0.2V→Vc-0.2V,
VM=1.0V
Note :
1) The specification for this temperature range is guaranteed by design, not tested in production.
msec 6
msec 6
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