LC05732ARA
Battery Protection IC,
Integrated Power MOSFET,
1-Cell Lithium-Ion Battery
Overview
The LC05732ARA is a protection IC for 1−cell lithium−ion
batteries with integrated power MOS FET. Also it integrates highly
accurate detection circuits and detection delay circuits to prevent
batteries from over−charging, over−discharging, over−current
discharging and over−current charging.
In addition, main system can execute the power−on reset of itself
by turning off the charge FET and discharge FET of LC05732ARA for
a certain time period, with a reset signal.
A battery protection system can be made by only LC05732ARA and
few external parts.
Features
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MARKING
DIAGRAM
XXXXX
AYYWW
ECP30, 1.97x4.01
SUFFIX
CASE 971BC
A
= Assembly Location
YY = Year
WW = Work Week
•
Charge−and−Discharge Power MOSFET are Integrated at T
A
= 25°C,
•
V
CC
= 4.0 V
♦
ON Resistance (Total of Charge and Discharge ) 4.8 mW (typ)
Highly Accurate Detection Voltage/Current at T
A
= 25°C,
V
CC
= 3.7 V
♦
Over−Charge Detection
±25
mV
♦
Over−Discharge Detection
±50
mV
♦
Charge Over−Current Detection
±0.7
A
♦
Discharge Over−Current Detection
±0.7
A
Delay Time for Detection and Release (Fixed Internally)
Discharge/Charge Over−Current Detection is Compensated for
Temperature Dependency of Power FET
0 V Battery Charging: “Inhibit”
Auto Wake−up Function Battery Charging: “Inhibit”
Forcible Charge−FET and Discharge−FET OFF Mode
RSTB>VDD*0.9: Charge−FET and Discharge−FET = ON
RSTB<VDD*0.1: Charge−FET and Discharge−FET = OFF
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
ORDERING INFORMATION
Device
LC05732A02RATBG
LC05732A03RATBG
Package
ECP30
(Pb−Free)
ECP30
(Pb−Free)
Shipping
†
5000 / Tape &
Reel
5000 / Tape &
Reel
•
•
•
•
•
•
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
Typical Applications
•
Smart Phone
•
Tablet
•
Wearable Device
©
Semiconductor Components Industries, LLC, 2017
1
December, 2017 − Rev. 2
Publication Order Number:
LC05732ARA/D
LC05732ARA
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25°C (Notes 1, 2, 3, 5)
Parameter
Supply voltage
S1 − S2 voltage
CS terminal Input voltage
RSTB input voltage
Storage temperature
Operating ambient
temperature
Allowable power dissipation
Junction temperature
Symbol
VCC
VS1−S2
CS
RSTB
Tstg
Topr
Pd
T
J
(Note 4)
Conditions
Between PAC+ and VCC : R1 = 680
W
Ratings
−0.3
to 12.0
20.0
V
CC
−20.0
to V
CC
+0.3
−0.3
to 7
−55
to +125
−40
to +100
800
125
Unit
V
V
V
V
°C
°C
mW
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Absolute maximum ratings represent the values which cannot be exceeded at any given time
2. If you intend to use this IC continuously under high temperature, high current, high voltage, or drastic temperature change, even if it is used
within the range of absolute maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for
confirmation
3. This device is made for power applications.
4. JESD 51−3 (1S)
5. Please execute appropriate test and take safety measures on your board.
PAC+
R1
VCC
Controller IC
VCC
RSTB
R3
RSTB
Battery
C1
S1
S2
CS
R2
PAC-
Figure 1. Example of Application Circuit
Components
R1
R2
R3
C1
Recommended Value
680
1k
1k
1.0m
Max
1k
2k
2k
−
Unit
W
W
W
F
Description
*We don’t guarantee the characteristics of the circuit shown above.
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2
LC05732ARA
ELECTRICAL CHARACTERISTICS
(Notes 6, 7, 8, 9)
Parameter
RESISTANCE
ON resistance 4 of
integrated power
MOSFET
Internal resistance
(VCC−CS)
Internal resistance
(VSS−CS)
Forward Source to
Source Voltage
Ron4
V
CC
= 4.5V
I =
±2.0
A
Rcsu
V
CC
=
Vuv_set
CS = 0 V
V
CC
= 3.7 V
CS = 0.1 V
V
CC
= 2.0 V
Is = 0.25 A
TA = 25°C
300
kW
TA = 25°C
3.8
4.7
5.6
mW
Symbol
Conditions
Min
Typ
Max
Unit
Rcsd
Vf(s−s)
TA = 25°C
TA = 25°C
10
0.67
1.06
kW
V
DETECTION AND RELEASE DELAY TIME
Over−charge
detection delay
time
Over−charge
release delay time
Over−discharge
detection delay
time
Over−discharge
release delay time
Discharge
over−current
detection delay
time 1
Discharge
over−current
release delay time
1
Discharge
over−current
detection delay
time 2 (Short
circuit)
Charge
Over−current
detection delay
time
Charge
Over−current
release delay time
Reset release time
Tov
TA = 25°C
TA =
−30
to 70°C
Tovr
TA = 25°C
TA =
−30
to 70°C
Tuv
TA = 25°C
TA =
−30
to 70°C
Tuvr
TA = 25°C
TA =
−30
to 70°C
Toc1
V
CC
= 3.7 V
TA = 25°C
TA =
−30
to 70°C
Tocr1
V
CC
= 3.7 V
TA = 25°C
TA =
−30
to 70°C
Toc2
V
CC
= 3.7 V
TA = 25°C
TA =
−30
to 70°C
Toch
V
CC
= 3.7 V
TA = 25°C
TA =
−30
to 90°C
Tochr
V
CC
= 3.7 V
TA = 25°C
TA = −30 to 90°C
Tres
V
CC
= 3.7 V
TA = 25°C
TA =
−30
to 70°C
0.8
0.6
12.8
9.6
14
12
0.9
0.6
9.6
7.2
3.2
2.4
230
200
12.8
9.6
3.2
2.4
0.8
0.6
1
1
16
16
20
20
1.1
1.1
12
12
4
4
300
300
16
16
4
4
1
1
1.2
1.5
19.2
24
26
30
1.3
1.5
14.4
18
4.8
6
420
450
19.2
24
4.8
6
1.2
1.5
s
ms
ms
ms
ms
ms
ms
ms
ms
s
6. This device is made for power applications.
7. Please execute appropriate test and take safety measures on your board.
8. Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
9. The specification in this parameter and all specification at high and low temperature are guaranteed by design.
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