E-CMOS EC9526L26FSR One-cell li-ion/li-polymer battery protection ic Datasheet

One-cell Li-ion/Li-polymer
battery protection IC
EC9526
General Description
The EC9526 series are protection IC using high voltage CMOS process for overcharge, overdischarge and overcurrent
protection of the rechargeable Lithium-ion or Lithium-polymer battery. The overcharge, overdischarge , discharging
overcurrent , charging overcurrent , and short protection of the rechargeable one-cell Lithium-ion or Lithium-polymer battery
can be detected. Each of these IC composed of four voltage detectors, short detection circuit, reference voltage sources,
oscillator, counter circuit and logical circuits.
Features
(Unless otherwise specified, Topr=+25℃)
1) Range and accuracy of detection/release voltage
・ Overcharge detection voltage
4.0V to 4.5V, 5mV steps
・ Overcharge release voltage
3.9V to 4.5V, 50mV steps
Accuracy±30mV
・ Overdischarge detection voltage
2.0V to 3.0V, 50mV steps
Accuracy±35mV
・ Overdischarge release voltage
2.0V to 3.5V, 50mV steps
Accuracy±100mV
Accuracy±20mV
Accuracy±25mV (Topr=-5 to +60℃)
・ Discharging overcurrent detection voltage +50mV to +300mV, 5mV steps
Accuracy±10mV
・ Charging overcurrent detection voltage
-50mV to -300mV, 5mV steps
Accuracy±20mV
・ Short detection voltage
0.5V fixed
Accuracy±100mV
2) Range of detection delay time
・ Overcharge detection delay time
Selection from 143ms, 573ms, 1.2s
・ Overdischarge detection delay time
Selection from 38ms, 150ms, 300ms
・ Discharging overcurrent detection delay time Selection from 4.5ms, 9ms, 18ms
・ Charging overcurrent detection delay time
Selection from 4.5ms, 9ms, 18ms
・ Short detection delay time
Selection from 300us, 400us
3) 0V battery charge function
Selection from "Prohibition" or "Permission"
4) Low current consumption
・ Normal mode
Typ. 3.0uA, Max. 5.5uA
・ Stand-by mode
Max. 0.1uA
5) Absolute maximum ratings
・ VDD pin
VSS-0.3V to 12V
・ COUT pin and V- pin
VDD-28V to VDD+0.3V
・ DOUT pin
VSS-0.3V to VDD+0.3V
・ Storage temperature
-55 to +125℃
・ Operation temperature
-40 to +85℃
6) Package type
・ SSON-6J
1.40 × 1.40 × 0.55(mm)
・ SON-6C
1.60 × 2.00 × 0.60(mm)
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 7
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
Pin Assignments
( SSON-6J)
( SON-6C )
Figure 1. Pin Assignment Diagram (DFN and SON Package)
Pin No.
Symbol
Function
1
DS
2
COUT
Output of overcharge detection.
3
DOUT
Output of overdischarge detection.
4
VSS
VSS terminal. Connected to ground.
5
VDD
VDD terminal. Connected to IC substrate.
6
V-
Delay shorten terminal.
Input terminal connected to charger negative voltage.
Ordering Information
EC9526VVV XX X
FS:SON-6C
FX:SSON-6J
※ VVV:Please check the following table 1.
E-CMOS Corp. (www.ecmos.com.tw)
Page 2 of 7
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
PRODUCT LINEUP
Detection / Release voltage
Product name
Product name
Package
Package
Detections
Detections
delay time
delay time
combination
combination
※※
0V
0V battery
battery
charge
charge
function
function
EC9526A16FSR
EC9526A26FSR
EC9526A36FSR
Product name
EC9526A46FSR
EC9526A56FSR
EC9526A66FSR
EC9526A76FSR
EC9526A86FSR
EC9526B16FSR
EC9526B26FSR
EC9526B36FSR
EC9526B46FSR
EC9526B56FSR
EC9526C16FSR
EC9526C26FSR
EC9526C36FSR
EC9526C46FSR
EC9526C56FSR
EC9526C66FSR
EC9526C76FSR
EC9526E16FSR
EC9526F16FSR
EC9526G16FSR
EC9526H16FSR
EC9526H26FSR
EC9526H36FSR
EC9526H46FSR
EC9526J16FSR
EC9526K16FSR
EC9526K26FXR
EC9526K26FSR
EC9526K36FXR
EC9526K36FSR
EC9526K46FXR
EC9526K46FSR
EC9526K56FSR
EC9526K66FXR
EC9526K66FSR
EC9526K76FSR
EC9526K86FXR
EC9526K86FSR
EC9526K96FSR
EC9526L16FXR
EC9526L16FSR
EC9526L26FSR
EC9526L36FXR
EC9526L36FSR
EC9526L56FSR
SON6C
SON6C
SON6C
Package
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SON6C
SSON6J
SON6C
SSON6J
SON6C
SSON6J
SON6C
SON6C
SSON6J
SON6C
SON6C
SSON6J
SON6C
SON6C
SSON6J
SON6C
SON6C
SSON6J
SON6C
SON6C
E-CMOS Corp. (www.ecmos.com.tw)
Permission
Permission
0V battery
Permission
Permission
charge
Permission
function
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Prohibition
Prohibition
Prohibition
Prohibition
Prohibition
Prohibition
Prohibition
Permission
Prohibition
Permission
Permission
Permission
Permission
Permission
Prohibition
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
Permission
(Table 2)
Vdet1
4.275
4.280
4.280
4.275
4.280
4.280
4.275
4.300
3.900
3.950
4.000
4.050
4.100
4.280
4.280
4.280
4.280
4.200
4.280
4.280
4.325
4.325
4.350
4.280
4.275
4.275
4.275
4.280
4.275
4.275
4.275
4.275
4.275
4.275
4.275
4.275
4.270
4.270
4.275
4.275
4.275
4.275
4.275
4.275
4.275
4.275
4.275
4.350
Page 3 of 7
Vrel1
4.175
4.080
4.080
4.075
4.280
4.280
4.175
4.100
3.800
3.850
3.900
3.950
4.000
4.080
4.080
4.130
4.130
4.100
4.130
4.130
4.075
4.075
4.150
4.180
4.075
4.175
4.175
4.180
4.275
4.075
4.075
4.075
4.075
4.075
4.075
4.275
4.070
4.270
4.075
4.075
4.075
4.075
4.075
4.075
4.075
4.075
4.075
4.150
Vdet2
2.300
2.300
2.300
2.300
2.800
3.000
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.600
2.800
2.800
2.800
2.800
2.500
2.500
2.300
2.300
2.800
2.300
2.400
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.600
2.600
2.600
2.600
2.600
3.400
2.600
2.600
2.300
Vrel2
2.400
2.300
2.300
2.300
2.800
3.000
2.400
2.300
2.400
2.400
2.400
2.400
2.400
2.300
2.300
3.100
3.100
2.900
3.100
3.100
2.900
2.900
3.000
2.300
3.100
2.300
2.400
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.300
2.600
2.600
2.600
2.600
2.600
3.400
2.600
2.600
2.300
Vdet3
0.100
0.080
0.100
0.150
0.050
0.075
0.050
0.130
0.100
0.100
0.100
0.100
0.100
0.100
0.130
0.150
0.150
0.150
0.100
0.050
0.150
0.150
0.200
0.120
0.100
0.120
0.100
0.120
0.100
0.120
0.120
0.130
0.130
0.150
0.150
0.050
0.100
0.100
0.130
0.110
0.110
0.190
0.100
0.100
0.100
0.180
0.180
0.130
Vdet4
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.100
-0.130
-0.085
-0.085
-0.085
-0.085
-0.085
-0.085
-0.120
-0.120
-0.100
1
1
Detections
1
1
delay time
1
combination
※
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
3
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
Detection / Release voltage
Product name
Product name
Detections
Detections
0V battery
0V
charge
battery
function
charge
Package
Package
delay
delaytime
time
combination
combination
※
※
function
EC9526N16FSR
EC9526P16FSR
EC9526T16FSR
EC9526W16FSR
EC9526W26FSR
SON6C
SON6C
SON6C
SON6C
SON6C
Prohibition
Prohibition
Permission
Permission
Permission
(Table 2)
Vdet1
4.280
4.225
4.225
4.225
4.375
Vrel1
4.080
4.125
4.225
4.025
4.175
Vdet2
2.400
2.000
2.500
2.500
2.400
Vrel2
2.400
2.000
2.900
2.900
2.800
Vdet3
0.050
0.200
0.150
0.150
0.145
Vdet4
-0.100
-0.100
-0.150
-0.150
-0.145
6
7
8
8
8
(Table 1)
※ Detection delay time combination
1
2
3
4
5
6
7
8
Overcharge detection delay time
tVdet1
1.2s
1.2s
143ms
1.2s
1.2s
1.2s
573ms
1.0s
Overdischarge detection delay time
tVdet2
150ms
150ms
38ms
150ms
38ms
150ms
150ms
96ms
Discharging overcurrent detection delay time
tVdet3
9ms
9ms
18ms
18ms
9ms
4.5ms
4.5ms
12ms
Charging overcurrent detection delay time
tVdet4
9ms
9ms
9ms
9ms
9ms
9ms
4.5ms
6ms
Short detection delay time
tshort
300us
400us
300us
300us
300us
300us
300us
400us
(Table 2)
E-CMOS Corp. (www.ecmos.com.tw)
Page 4 of 7
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, Topr=+25℃
Parameter
Operating input voltage
Maximum forbidden voltage for 0V charging※
Minimum operating voltage for 0V charging※
COUT pin Nch ON voltage
COUT pin Pch ON voltage
DOUT pin Nch ON voltage
DOUT pin Pch ON voltage
Current consumption
Current consumption at stand-by
Overcharge detection voltage
Overcharge detection voltage
Overcharge release voltage※2
Overdischarge detection voltage
Overdischarge release voltage※3
Discharging overcurrent detection voltage
Charging overcurrent detection voltage
Short detection voltage
Overcharge detection delay time
Overdischarge detection delay time
Discharging overcurrent detection delay time
Charging overcurrent detection delay time
Short detection delay time
Symbol
Conditions
INPUT/OUTPUT VOLTAGE
VDD1
VDD-VSS
Vst
"Prohibition" function
Vst
"Permission" function
Vol1
Iol=30uA, VDD=4.5V
Voh1
Ioh=-30uA,
Vol2
Iol=30uA, VDD=2.0V
Voh2
Ioh=-30uA,
CURRENT CONSUMPTION
Idd
VDD=3.9V, V-=0V
Is
DETECTION/RELEASE VOLTAGE
Vdet1
Ta=+25℃
Vdet1
Ta=-5~+60℃
Vrel1
Vdet1≠Vrel1
Vdet2
Vrel2
Vdet2≠Vrel2
Vdet3
Vdet4
Vshort
DETECTION DELAY TIME
tVdet1
tVdet2
tVdet3
tVdet4
tshort
Min.
Typ.
Max.
unit
1.5
0.6
3.4
3.4
0.9
0.4
3.7
0.2
3.7
5.5
1.2
1.2
0.5
0.5
-
V
V
V
V
V
V
V
-
3.0
-
5.5
0.1
uA
uA
Typ-0.020
Typ-0.025
Typ-0.030
Typ-0.035
Typ-0.10
Typ-0.010
Typ-0.020
0.4
Vdet1
Vdet1
Vrel1
Vdet2
Vrel2
Vdet3
Vdet4
0.5
Typ+0.020
Typ+0.025
Typ+0.030
Typ+0.035
Typ+0.100
Typ+0.010
Typ+0.020
0.6
V
V
V
V
V
V
V
V
Typ*0.8
Typ*0.8
Typ*0.8
Typ*0.8
Typ*0.8
tVdet1
tVdet2
tVdet3
tVdet4
tshort
Typ*1.2
Typ*1.2
Typ*1.2
Typ*1.2
Typ*1.2
s
ms
ms
ms
us
※1 0V battery charge function is selected from "Prohibition" or "Permission".
※2 There is occasion as follows of two kinds of release condition from the overcharge status.
a) In the case that the V- pin voltage is lower than the discharging overcurrent detection voltage (Vdet4), EC9526 releases the
overcharge status when the battery voltage falls below the overcharge release voltage(Vrel1).
b) In the case that the V- pin voltage is higher than or equal to the discharging overcurrent detection voltage (Vdet4), EC9526
releases the overcharge status when the battery voltage falls below the overcharge detection voltage (Vdet1).This is a hysteresis
cancellation function.
※3 The release condition from the overdischarge status is that the charger is connected and the V- pin voltage is lower than the
discharging overcurrent detection voltage (Vdet3), and the battery voltage rise more then the overdischarge release voltage(Vrel2).
E-CMOS Corp. (www.ecmos.com.tw)
Page 5 of 7
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
BLOCK DIAGRAM / TYPICAL APPLICATION CIRCUIT
R1 and C1 stabilize a supply voltage ripple. However, the detection voltage rises by the current of penetration in IC of the
voltage detection when R1 is enlarged, and the value of R1 is adjusted to 1kohm or less. Moreover, adjust the value of C1
to 0.01uF or more to do the stability operation, please.
R1 and R2 resistors are current limit resistance if a charger is connected reversibly or a high-voltage charger that exceeds
the absolute maximum rating is connected. R1 and R2 may cause a power consumption will be over rating of power
dissipation, therefore the `R1+R2` should be more than 1kohm. Moreover, if R2 is too enlarged, the charger connection
release cannot be occasionally done after the overdischarge is detected, so adjust the value of R2 to 10kohm or less,
please.
C2 and C3 capacitors have effect that the system stability about voltage ripple or extraneous noise. After check
characteristics, decide that these capacitors should be inserted or not, where should be inserted, and capacitance value,
please.
E-CMOS Corp. (www.ecmos.com.tw)
Page 6 of 7
4C12N-Rev.P001
One-cell Li-ion/Li-polymer
battery protection IC
EC9526
Package Information
E-CMOS Corp. (www.ecmos.com.tw)
Page 7 of 7
4C12N-Rev.P001
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