AP9101C
SINGLE CHIP SOLUTION FOR 1-CELL Li+ BATTERY PACK
Description
The AP9101C is a protection IC developed for lithium-ion/lithium
polymer rechargeable battery with a high-precision voltage detection
circuit.
The AP9101C provides a function to protect batteries by detecting
overcharge voltage, overdischarge voltage, overcharge current,
overdischarge current and other abnormalities and turning off the
external MOSFET switch.
The AP9101C also has a built-in fixed time circuit (external capacitors
are unnecessary); the protection circuitry can be comprised with fewer
external components.
The AP9101C is available in standard packages of SOT25 and
SOT26.
Features
Low Current Consumption (+25°
C)
Operation Mode: 3.0µA (Typ) V
DD
= 3.5V
Power-Down Mode: 0.01µA (Typ)
High-Accuracy Voltage Detection Circuit (+25°
C)
Overcharge Detection Voltage: 3.5V to 4.5V (5mV Steps)
Accuracy ±25mV
Overcharge Hysteresis Voltage Range: 0.1V to 0.4V (50mV
Steps) Accuracy ±50mV
Overdischarge Detection Voltage: 2.0V to 3.4V (10mV Steps)
Accuracy ±35mV
Overdischarge Hysteresis Voltage Range: 0V to 0.7V (40mV
Steps) Accuracy ±65mV
Discharge Overcurrent Detection Voltage: 0.05V to 0.32V
(10mV Steps) Accuracy ±15mV
Short Current Detection Voltage: 0.45V to 0.7V (50mV Steps)
Accuracy ±100mV
Charge Overcurrent Detection Voltage: -0.2V to -0.05V (10mV
Steps) Accuracy ±15mV
Overcharger Detection Voltage: 8.0V (Fixed) Accuracy ±2V
Overcharger Release Voltage: 7.3V (Fixed) Accuracy ±2V
Built-In Fixed Detection Delay Time (+25° Accuracy ±20%
C):
Power-Down Mode can be Selectable: Available/Unavailable
0V
Battery
Charge
Function
can
be
Selectable:
Available/Unavailable
Overcharge Protection Mode: Release
High-Voltage CMOS Process: Up to 30V between VDD and VM
Pins
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Lithium-Ion Battery Packs
Lithium Polymer Battery Packs
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Pin Assignments
(Top View)
Pin 1 Mark
(Top View)
Pin 1 Mark
VM
1
2
3
5
CO
DO
1
2
3
6
5
4
VSS
VDD
VM
VDD
VSS
4
DO
CO
NC
SOT25
SOT26
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AP9101C
Document number: DS37771 Rev. 7 - 2
AP9101C
Typical Applications Circuit
(Note 4)
P+
R1
330Ω
2(5)
VDD
AP9101C
Battery
3(6)
VM
1(2)
C1
100nF
VSS
DO
4(1)
CO
5(3)
R2
2.7KΩ
Q1
Q2
P-
A(B)
A for SOT25
B for SOT26
Note 4: R1 and C1 are used to stabilize the supply voltage of the AP9101C. The recommended range of R1 value is 330Ω to 470Ω and C1 value is 10nF to 1000nF,
typical value is 100nF. R2 should be connected between P- to V
M
sense terminal to monitor the status of charger and the charge/discharge current. The R2
should be between 300Ω and 4kΩ, typical value is 2.7kΩ. R1 and R2 are also used as current limit resistors if the battery or charger is connected reversely.
Polarity reversing may cause the power consumption of R1 and R2 to go over their power dissipation rating, therefore R1 and R2 values should be selected
appropriately for the actual application. If R2 is more than 4kΩ resistor, CO may not cut off Q2 due to the voltage drop on R2.
For power-down mode, when first connecting AP9101C system board to the battery, it is necessary to use charger or to short P- to the battery negative
polarity. Once the AP9101C is activated, the charger or connection can be removed, otherwise the battery cannot discharge current through the system board.
The values selected should follow the recommended typical range mentioned above.
Pin Descriptions
Pin Number
Pin Name
SOT25
1
2
3
4
5
—
SOT26
2
5
6
1
3
4
VM
VDD
VSS
DO
CO
NC
Charger Negative Input Pin
Positive Power Input Pin
Negative Power Input Pin
FET Gate Control Pin for Discharge
FET Gate Control Pin for Charge
Not Connected
Function
AP9101C
Document number: DS37771 Rev. 7 - 2
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AP9101C
Functional Block Diagram
DO
4(1)
Logic Circuit
Level Shift
OV
Charge
Option
2(5)
VDD
CO
5(3)
Delay Time
Circuit
1(2)
3(6)
VM
R
VMD
R
VMS
VSS
Logic Circuit
A(B)
A for SOT25
B for SOT26
AP9101C
Document number: DS37771 Rev. 7 - 2
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AP9101C
Absolute Maximum Ratings
(Note 5)
Symbol
V
DS
V
DM
V
CO
V
DO
T
OPR
T
J
T
STG
T
LEAD
P
D
—
—
Note:
Parameter
Supply Voltage (Between VDD and VSS)
Charger Input Voltage (Between VDD and VM)
CO Pin Output Voltage
DO Pin Output Voltage
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Power Dissipation (+25°
C)
ESD (Machine Model)
ESD (Human Body Model)
Rating
-0.3 to 12
-0.3 to 30
V
M
-0.3 to V
DD
+0.3
V
SS
-0.3 to V
DD
+0.3
-40 to +85
+150
-65 to +150
+300
250
200
2,000
Unit
V
V
V
V
°
C
°
C
°
C
°
C
mW
V
V
5. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
V
DS
V
DM
T
A
Parameter
Supply Voltage (Between VDD and VSS)
Charger Input Voltage (Between VDD and VM)
Operating Ambient Temperature
Min
1.5
-0.3
-40
Max
5.5
5.5
+85
Unit
V
V
°
C
AP9101C
Document number: DS37771 Rev. 7 - 2
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© Diodes Incorporated
AP9101C
Electrical Characteristics
(T
A
= +25° V
DD
= 3.5V, V
SS
= 0V, R1 = 330Ω, R2 = 2.7kΩ, C1 = 100nF, unless otherwise specified.)
C,
Symbol
V
CU
Parameter
Overcharge Detection Voltage
V
M
= 0
V
CL
≠ V
CU
, V
M
= 0
V
CL
Overcharge Release Voltage
V
CL
= V
CU
V
DL
Overdischarge Detection Voltage
V
M
= 0
V
DU
≠ V
DL
, V
M
= 0
V
DU
Overdischarge Release Voltage
V
DU
= V
DL
V
DOC
V
SHORT
V
COC
I
CC
Discharge Overcurrent Detection Voltage
Load Short-Circuiting Detection Voltage
Charge Overcurrent Detection Voltage
Current Consumption During Operation
—
—
—
V
DD
= 3.5V, V
M
= 0V
V
DD
= 1.8V,
I
STB
Current Consumption at Power-Down
CO Pin Resistance “H”
CO Pin Resistance “L”
DO Pin Resistance “H”
DO Pin Resistance “L”
Resistance Between VM Pin and VDD Pin
Resistance Between VM Pin and VSS Pin
VM Pin
Floating
Power-Down Mode
Without Power-Down
Mode (Auto-Wake-up)
V
DU
-0.035
V
DOC
-0.015
V
SHORT
-0.10
V
COC
-0.015
1.5
—
—
2
2
2
2
150
10
1.2
—
6.0
5.3
—
—
—
—
—
t
CU
×0.8
t
DL
×0.8
t
DOC
×0.8
t
SHORT
×0.8
t
COC
×0.8
V
DU
V
DOC
V
DU
+0.035
V
DOC
+0.015
V
V
V
V
µA
V
CL
-0.025
V
DL
-0.035
V
DU
-0.100
V
CL
V
DL
V
DU
V
CL
+0.025
V
DL
+0.035
V
DU
+0.100
V
V
V
Test Conditions
Min
V
CU
-0.025
V
CL
-0.050
Typ
V
CU
V
CL
Max
V
CU
+0.025
V
CL
+0.050
Unit
V
V
V
SHORT
V
SHORT
+0.10
V
COC
3
—
—
6
4
5
5
300
30
—
—
8.0
7.3
t
CU
t
DL
t
DOC
t
SHORT
t
COC
V
COC
+0.015
4.5
0.1
5.5
10
10
10
10
500
50
—
0.45
10.0
9.3
t
CU
×1.2
t
DL
×1.2
t
DOC
×1.2
t
SHORT
×1.2
t
COC
×1.2
µA
R
COH
R
COL
R
DOH
R
DOL
R
VMD
R
VMS
V
0CHA
V
0INH
V
OVCHG
V
OVCHGR
t
CU
t
DL
t
DOC
t
SHORT
t
COC
V
DD
= 3.5V, V
CO
= 3.0V, V
M
= 0V
V
DD
= 4.5V, V
CO
= 0.5V, V
M
= 0V
V
DD
= 3.5V, V
DO
= 3.0V, V
M
= 0V
V
DD
= 1.8V, V
DO
= 0.5V, V
M
= 0V
V
DD
= 1.8V, V
M
= 0V
V
DD
= 3.5V, V
M
= 1.0V
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
V
V
V
V
ms
ms
ms
µs
ms
0V Battery Charge Starting Charger Voltage 0V Battery Charging “Available”
0V Battery Charge Inhibition Battery Voltage 0V Battery Charging “Unavailable”
Overvoltage Charger Detection Voltage
Overvoltage Charger Release Voltage
Overcharge Detection Delay Time
Overdischarge Detection Delay Time
Discharge Overcurrent Detection Delay
Time
Load Short-Circuiting Detection Delay Time
Charge Overcurrent Detection Delay Time
V
DD
= 3.5V
V
DD
= 3.5V
AP9101C
Document number: DS37771 Rev. 7 - 2
5 of 26
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November 2018
© Diodes Incorporated
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