FS325D-N6A [FORTUNE]
One Cell Lithium-ion/Polymer Battery Protection IC;
| 型号： | FS325D-N6A |
| 厂家： | 
Fortune Semiconductor |
| 描述： | One Cell Lithium-ion/Polymer Battery Protection IC 电池 |
| 文件： | 总28页 (文件大小：1536K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
REV. 1.9 FS325-DS-19_EN
JUN 2015
Datasheet
FS325
One Cell Lithium-ion/Polymer Battery Protection IC
Fortune Semiconductor Corporation
富晶電子股份有限公司
23F., No.29-5,Sec. 2, Zhongzheng E. Rd.,
Danshui Dist, New Taipei City 251, Taiwan
Tel.：886-2-28094742
Fax：886-2-28094874
www.ic-fortune.com
This manual contins new ct information. Fortune Semiconductor Corporation reserves the rights to
modify the prouct specification without further notice. No liability is assumed by Fortune Semiconductor
Corporation as a rsult of the use of this product. No rights under any patent accompany the sale of the
product.
1. General Description
3. Ordering Information
FS325 is
a
series of lithium-ion and
lithium-polymer rechargeable battery protection
ICs with high accurate voltage detection and
delay circuits.
FS325 x - x
N6A、N6C Package code
Serial code from A to D *
(N6A：1.8*2.0mm SSON-6 Green-Package)
(N6C：1.6*1.6mm SSON-6 Green-Package)
These ICs are suitable for protection of single
cell lithium-ion or lithium polymer battery packs
from over charge, over discharge and over
current.
*: Refer to the product name list on next page.
2. Features
4. Applications
Low supply current
Protection IC for One-Cell Lithium-Ion /
Lithium-olymer Battery Pack
Normal Operation : 2.5μA typ. @VDD3.9V
Power-down mode : 0.05μA typ. @VDD=2.0V
Auto recovery function
@VDD=2.0V
: 1.8 μ A typ
Overcharge detection volage﹝VOCU﹞
4.25V~4.31V, Accuracy of 25mV
Overcharge release voltage﹝VOCR﹞
4.05V~4.11V, Accof 50mV
Overdischarge on voltage﹝VODL﹞
2.30V~2.40V, Accacy of 100mV
Overdislease voltage﹝VODR
2.30V~racy of 100mV
Over curction voltage﹝VOI1﹞
.10V~0.13V, Accuracy of 10m
Sot circuit detection voltae﹝﹞
0.7V0.9V, Accuracy of 10mV
Charger over currction voltage
﹝VCH﹞-0.09V~0.ccuracy of 20mV
Delay times are generated by an internal
circuit. (External capacitors are
unnecessary.)
Reset resistance for Over curreection
>150k
Wide supply voltage range 1.5 ~ 5V
Small package SOT-23-5、SSON-6
0V-Battery charging functon
.
5. Product Name List
Charger over
current
Overcharge Overcharge Overdischarge Overdischarge Overcurrent
Standby
function
release
detection
voltage
release
voltage
detection
voltage
release
voltage
detection
voltage
0V change
function
Model
Package
detection
voltage
[VOCU] (V) [VOCR] (V)
[VODL] (V)
[VODR] (V)
[VOI1] (V)
[VCH] (V)
Connection
of chargr
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
FS325A
FS325B
4.310±25mV 4.110±50mV
2.300±77mV
.300±77mV
0.130±10mV -0.090±20mV
YES
AUTO
4.250±25mV 4.050±50mV 2.400±100mV
2.00±100mV
2.300±100mV
2.300±100mV
2.300±100mV
2.300±100mV
0.100±10mV
-
YES
YES
ecovery
Connction
ocharger
FS325C
FS325D
4.275±25mV
Note: 1
2.300±100mV
0.100±10mV -0.100±20mV
0.30±1mV -0.100±20mV
130±10mV -0.100±20m
0.130±10mV -0.100±20mV
Connection
of charger
4.280±25mV 4.080±50mV 2300±10mV
4.280±25mV 4.080±50mV 2.300±10mV
4.280±25mV 4.80±50mV 2.300±100mV
V
0.65V
SSON-6
(1.8×2.0)
Connection
of charger
FS325D-N6A
FS325D-N6C
SSON-6
(1.6×1.6)
Connection
of charger
Note: 1. FS325C VOCR release conditions : VDDVOCU ＆ VCSI>VOI1 (1V)
2. FS325D 0V charging prohibit range: 0.4V～1.1V (typ=0.65V)
3. FS325DSSON-6 similar to SeNT-6A Package
6. Pin Configuration and Package Marking Information
Pin No. Symbol
Description
1
2
3
4
5
CSI
Input pin for current sense, charger detect
VDD Positive power input pin
VSS Negative power input pin
OD
OC
FET gate connection pin for discharge control
FET gate connection pin for charge control
Top Point：Lot No.
Bottom Point：Year
w week, A~Z & A ~ Z
Pin No.
scription
1
2
3
4
5
6
NC
OC
OD
NC
FET gatconnection pin for charge control
ate connection pin for darge control
VSS Ngative power input pin
VDD Positive power input p
CSI
Input pin for current snse, charger detect
Top View
SSON6
(N6A)
3 5 D(1)
(2)(3)(4)(5)
Bottom View
(1)：Year Code, 0~9
4
3
5
5
2
6
1
(2)(3)：Week Code, 01~54
(4)(5)：Serial Code, 01~99
Pin No. Symbol
Description
1
2
3
4
5
6
NC
OC
OD
NC
FET gate connection pin for charge control
FET gate connection pin for discharge control
VSS Negative power input pin
VDD Positive power input pin
CSI
Input pin for current sene, charger detect
Top View
6
5
4
SSON-6
(N6C)
3 5 D(
(2)(3)(4)(5
1
2
3
om View
(1)：Year Code, 0~9
(2(3)：Week Code, 0~54
(4)(5)：Serial Code, 01~99
__：Pin1 mark
7. Functional Block Diagram
VDD
Short circuit
Detector
VSS
VSS
VSS
scillator
Control
Circit
Overcharge
Detector
Over current
Detector
Dide
Conol
Logic
CSI
Overdischarg
e Detector
Charger
etector
VSS
VSS
Control
Logic
8. Typical Appn Circuit
9. Absolute Maximum Ratings
(VSS=0V, Ta=25°C unless otherwise specified)
Item
Symbol
Rating
Unit
Input voltage between VDD and VSS *
VDD
VSS-0.3 to VSS+12
V
OC output pin voltage
OD output pin voltage
CSI input pin voltage
VOC
VOD
VCSI
TOP
VDD-26 to VDD+0.3
VSS-0.3 to VDD+0.3
VDD-26 to VDD+0.3
-40 to +85
V
V
V
Operating Temperature Range
°C
Storage Temperature Range
TST
-40 to +125
°C
Note: FS325 contains a circuit that will protect it from static discharge; but please take special care
that no excessive static electricitor voltagwhich exceeds the limit of the protection cicuit
will be applied to it.
* Pulse (μsec) noise exceeding the above input voltage (VSS+12V) may cauto
the IC.
10. Electrical Characteristics
FS325A(VSS=0V, Ta=25°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.2
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
Vdet
4.285
4.060
2.223
2.223
0120
0.80
0.11
7
4.310
4.110
2.300
2.300
0.130
0.90
-0.09
150
4.335
4.160
2.377
2.377
30
V
V
V
V
V
V
V
kohm
kohm
V
VDD=3.6V
VDD=3.6V
VDD=20V,CS=VDD-1.0V
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery ge
15
5.5
5.3
30
8.
7
150
10.5
9.3
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V
VDD=3.0V
VDD=3V
Overcharge deay time
Overdischarge ay time
Over current deteelay time
Short cicuit detection delay time
Charger ver current delay time
Overcharge mer reset delay time
Charge release delay time
Charge connection detectlay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
65
365
0.4
16.25
5.0
6.25
100
11.0
0.750
32.5
16
8.5
135
14.25
1.4
48.75
50.0
50.0
3.0
s
ms
ms
ms
ms
ms
ms
ms
VD
VDD
2
Tdr1
5.0
0.3
16
1
VDD=3.6V, Ioh=A
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDDIoh=+20μA
, CC,OD
0.5
FS325A(VSS=0V, Ta=-5 to +55°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.5
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
det
4.280
4.060
2.223
2.223
0.120
0.80
0.11
7
4.310
4.110
2.300
2.300
0.130
0.90
-0.09
150
4.340
4.160
2.377
2.377
0.
V
V
V
V
V
V
V
kohm
kohm
V
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
VDD=3.6VCS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
15
6.0
5.8
30
8.0
7
150
10.0
8.8
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current delay time
Short circuit detection delay time
Chargeover current delay time
Overchargtimer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
3.125
5
5.5
0.3
13
5.0
6.25
100
11.0
0.75
32.5
16
9.375
150
s
ms
ms
ms
ms
ms
ms
ms
16.85
1.48
76.5
50.0
50.0
3.0
VDD
VD
2
dr1
5.0
0.3
16
1
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=3.6V, Ioh20μA
, CSC,OD
0.5
FS325A(VSS=0V, Ta=-30 to +70°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
6
μA
μA
Power-Down Current
0.05
1.0
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.7
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
det
4.245
4.025
2.223
2.223
0.115
0.80
.115
7
4.310
4.110
2.300
2.300
0.130
0.90
-0.09
150
4.345
4.165
2.377
2.377
0.
V
V
V
V
V
V
V
kohm
kohm
V
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
VDD=3.6VCS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
15
5.5
5.3
30
8.0
7
150
10.5
9.3
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current delay time
Short circuit detection delay time
Chargeover current delay time
Overchargtimer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
2.50
4
5.0
.225
13.0
5.0
6.25
100
11.0
0.75
32.5
16
10.60
170
s
ms
ms
ms
ms
ms
ms
ms
20.0
2.000
76.5
50.0
50.0
3.0
VDD
VD
2
dr1
5.0
0.3
16
1
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=3.6V, Ioh20μA
, CSC,OD
0.5
FS325B(VSS=0V, Ta=25°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IOD
2.5
1.8
5.5
4.5
μA
μA
Overdischarge Current
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
det
4.225
4.000
2.300
2.800
0.090
0.80
4.250
4.050
2.400
2.900
0.100
0.90
NO
150
30
8.0
4.275
4.100
2.500
3.000
0.
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
7
15
6.0
5.8
0
150
10.0
10.0
0
VDD=3.6VCS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
Vrec
7
0
NO
V
V
V
0V charging prohibit
VST
Vstd
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current delay time
Short circuit detection delay time
Chargeover current delay time
Overchargtimer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.6
6
8.37
.275
1.00
100
12.5
0.50
NO
6
1.35
140
17.13
1.30
s
ms
ms
ms
ms
ms
ms
ms
VDD
VD
1
1
--
20
20
--
2
dr1
6
--
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=3.6V, Ioh20μA
, CSC,OD
0.5
FS325B(VSS=0V, Ta=-5 to +55°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IOD
2.5
1.8
5.5
4.5
μA
μA
Overdischarge Current
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
det
4.220
4.000
2.300
2.800
0.090
0.80
4.250
4.050
2.400
2.900
0.100
0.90
NO
150
30
8.0
4.280
4.100
2.500
3.000
0.
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
7
15
6.0
5.8
0
150
10.0
10.0
0
VDD=3.6VCS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
Vrec
7
0
NO
V
V
V
0V charging prohibit
VST
Vstd
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current delay time
Short circuit detection delay time
Chargeover current delay time
Overchargtimer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.5
5
6.25
0.2
1.00
100
12.5
0.50
NO
6
1.5
150
19.1
1.50
s
ms
ms
ms
ms
ms
ms
ms
VDD
VD
1
1
--
20
20
--
2
dr1
6
--
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=3.6V, Ioh20μA
, CSC,OD
0.5
FS325B(VSS=0V, Ta=-30 to +70°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IOD
2.5
1.8
6
5
μA
μA
Overdischarge Current
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
det
4.185
3.965
2.300
2.800
0.085
0.80
4.250
4.050
2.400
2.900
0.100
0.90
NO
150
30
8.0
4.285
4.105
2.500
3.000
0.
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
7
15
5.5
5.3
0
150
10.5
9.3
0
VDD=3.6VCS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
Vrec
7
0
NO
V
V
V
0V charging prohibit
VST
Vstd
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge lay time
Over current delay time
Short circuit detection delay time
Chargeover current delay time
Overchargtimer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.4
4
5.00
0.2
1.00
100
12.5
0.50
NO
6
1.7
170
21.6
1.80
s
ms
ms
ms
ms
ms
ms
ms
VDD
VD
1
1
--
20
20
--
2
dr1
6
--
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=3.6V, Ioh20μA
, CSC,OD
0.5
FS325C(VSS=0V, Ta=25°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.5
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
Vdet
4.250
4.275
4.300
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD<VOCU ＆ VCSI>VOI1
2.200
2.200
0090
0.80
0.12
7
15
6.0
5.8
2.300
2.300
0.100
0.90
-0.10
150
30
2.400
2.400
0
150
10.0
8.8
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
8.0
7
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current detlay time
Short circuit detection delay time
Charger over current delay time
Overcharge timer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.6
65
0.8
0.3
12.5
5.0
5.0
1
1.35
140
21.6
1.3
37.5
50.0
50.0
16.0
s
100
16.5
0.50
25.0
16.0
16.0
8.0
ms
ms
ms
ms
ms
ms
ms
VD
VD
2
dr1
3.0
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=V, Ioh20μA
, CSC,OD
0.5
FS325C(VSS=0V, Ta=-5 to +55°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.5
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
Vdet
4.245
4.275
4.305
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD<VOCU ＆ VCSI>VOI1
2.200
2.200
0090
0.80
0.12
7
15
6.0
5.8
2.300
2.300
0.100
0.90
-0.10
150
30
2.400
2.400
0
150
10.0
8.8
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
8.0
7
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current detlay time
Short circuit detection delay time
Charger over current delay time
Overcharge timer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.5
50
1
1.5
150
25.0
1.5
37.5
50.0
50.0
16.0
s
100
16.5
0.50
25.0
16.0
16.0
8.0
ms
ms
ms
ms
ms
ms
ms
.0
0.2
5.0
5.0
5.0
3.0
VD
VD
2
dr1
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=V, Ioh20μA
, CSC,OD
0.5
FS325C(VSS=0V, Ta=-30 to 70°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
6
μA
μA
Power-Down Current
0.05
1.0
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
Release pull up resistor
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rshort
Vdet
4.240
4.275
4.320
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD<VOCU ＆ VCSI>VOI1
2.200
2.200
0085
0.80
.125
7
15
5.5
5.3
2.300
2.300
0.100
0.90
-0.10
150
30
2.400
2.400
0
150
10.5
9.3
VDD=3.6V
VDD=3.6V
VDD2.0V,CS=DD-1.0V
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery voltage
8.0
7
Vrec
V
0
0
0
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V to V
VDD=3.0V
VDD=3.6V
Overcharge detlay time
Overdischarge ay time
Over current detlay time
Short circuit detection delay time
Charger over current delay time
Overcharge timer reset delay time
Charge release delay time
Charge connection detecay
OTHER
TOC
TOD
TOI1
TOI2
Tde
Td1
0.4
40
1
1.7
170
s
100
14.5
0.50
25.0
16.0
16.0
8.0
ms
ms
ms
ms
ms
ms
ms
.5
0.2
5.5
5.0
5.0
3.0
28.9
1.75
69.0
50.0
50.0
16.0
VD
VD
2
dr1
VDD=3.6V, Ioh=-20μA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDD=V, Ioh20μA
, CSC,OD
0.5
FS325D、FS325D-N6A、FS325D-N6C
(VSS=0V, Ta=25°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.5
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rhort
Vdet
4.255
4.030
2.200
2200
0.120
.60
-0.120
75
4.280
4.080
2.300
2.300
0.130
0.70
-0.100
150
4.305
4.130
2.400
2
-0
300
150
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD=2.0V,CS=VDD-1.0V
Release pull up resistor
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery e
15
6.0
5.8
30
8
7.3
10.0
8.8
Vrec
V
0.40
0.65
1.10
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V
VDD=3.0V to
VD
Overcharge dey time
Overdischarge delay time
Over curent detection delay time
Short cicuit detection delay time
Charger ovr current delay time
Overcharge timer reset dele
Charge release delay tim
Charge connection detectioelay
OTHER
TOC
TOD
TOI1
TOI
Tdet
1
0.6
65
13.
0.60
-
5.0
5.0
0.5
1
1.35
140
26.5
1.80
-
50.0
50.0
2.0
s
100
20.0
1.0
-
16.0
16.0
1.0
ms
ms
ms
ms
ms
ms
ms
VD
VDD=3.6V
d2
Tdr1
VDD=3.6V, IohμA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDIoh=+20μA
, C,O
0.5
FS325D、FS325D-N6A、FS325D-N6C
(VSS=0V, Ta=-5 to +55°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
5.5
1.0
μA
μA
Power-Down Current
0.05
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rhort
Vdet
4.250
4.030
2.200
2200
0.120
.60
-0.120
75
4.280
4.080
2.300
2.300
0.130
0.70
-0.100
150
4.310
4.130
2.400
2
-0
300
150
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD=2.0V,CS=VDD-1.0V
Release pull up resistor
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery e
15
6.0
5.8
30
8
7.3
10.0
8.8
Vrec
V
0.40
0.65
1.10
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V
VDD=3.0V to
VD
Overcharge dey time
Overdischarge delay time
Over curent detection delay time
Short cicuit detection delay time
Charger ovr current delay time
Overcharge timer reset dele
Charge release delay tim
Charge connection detectioelay
OTHER
TOC
TOD
TOI1
TOI
Tdet
1
0.5
50
10.
0.55
-
5.0
5.0
0.5
1
1.5
150
30.0
1.85
-
50.0
50.0
2.0
s
100
20.0
1.0
-
16.0
16.0
1.0
ms
ms
ms
ms
ms
ms
ms
VD
VDD=3.6V
d2
Tdr1
VDD=3.6V, IohμA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDIoh=+20μA
, C,O
0.5
FS325D、FS325D-N6A、FS325D-N6C
(VSS=0V, Ta=-30 to +70°C unless otherwise specified)
PARAMETER
CURRENT CONSUMPTION
Supply Current
CONDITIONS
SYMBOL
Min
Typ
Max
UNIT
VDD=3.9V
VDD=2.0V
IDD
IPD
2.5
6
μA
μA
Power-Down Current
0.05
1.0
OPERATING VOLTAGE
Operating input voltage1
Operating input voltage2
VDD-VSS
VDD-CSI
VDS1
VDS2
1.5
1.5
5.5
V
V
DETECTION VOLTAGE
Overcharge detection voltage
Overcharge release voltage
Overdischarge detection voltage
Overdischarge release voltage
Over current detection voltage
Short circuit detection voltage
Charger over current detection voltage
VOCU
VOCR
VODL
VODR
VOI1
VOI2
VCH
Rdown
Rhort
Vdet
4.215
3.995
2.200
2200
0.115
.60
-0.125
75
4.280
4.080
2.300
2.300
0.130
0.70
-0.100
150
4.315
4.135
2.400
2
-0
300
150
V
V
V
V
V
V
V
Kohm
Kohm
V
VDD=3.6V
VDD=3.6V
VDD=2.0V,CS=VDD-1.0V
Release pull up resistor
VDD=3.6V,CS=VDD
Release pull down resistor
Faulty charger detect voltage
Faulty charger recovery e
15
5.5
5.3
30
8
7.3
10.5
9.3
Vrec
V
0.40
0.65
1.10
V
V
0V charging prohibit
VST
Vstd
0.3VCC 0.5VCC 0.7VCC
Power-Down detect voltage
DELAY TIME
VDD=4.0V
VDD=3.0V to
VD
Overcharge dey time
Overdischarge delay time
Over curent detection delay time
Short cicuit detection delay time
Charger ovr current delay time
Overcharge timer reset dele
Charge release delay tim
Charge connection detectioelay
OTHER
TOC
TOD
TOI1
TOI
Tdet
1
0.4
40
8.0
0.40
-
5.0
5.0
0.5
1
1.7
170
34.4
2.50
-
50.0
50.0
2.0
s
100
20.0
1.0
-
16.0
16.0
1.0
ms
ms
ms
ms
ms
ms
ms
VD
VDD=3.6V
d2
Tdr1
VDD=3.6V, IohμA
, CSI=0V OC,O
Output high level voltage
Output low level voltage
VOH
VOL
3.1
V
V
VDIoh=+20μA
, C,O
0.5
11. Description of Operation
0.9V) with two overcurrent delay time (TOI1 and
TOI2) corresponding to each overcurrent detection
level.
Normal Condition
If VODP<VCC<VOCP and VST<VCS<VOI1, M1 and
M2 are both turned on. The charging and
discharging processes can be operated normally.
Charge Detection after Overdischarge
When overdischarge occurs, the discharge control
MOSFET turns off and discharging is inhibited.
However, charging is still permitted through the
parasitic diode of MOSFET. Once the charger is
conected to the battery pack, the FS325
mmediately turns on all the timing generation and
detecion circuitry. Charging progress is sensed if
the voltage between CS and GND is below charge
detection threshold voltage (VST).
Overcharge Protection
When the voltage of the battery cell exceeds the
overcharge protection voltage (VOCP) beyond the
overcharge delay time (TOC) period, charging is
inhibited by turning off of the charge control
MOSFET. The overcharge condition is released in
two cases:
The voltage of the battery cell becomes lowethan
the overcharge release voltage (VOCR) throuh
self-discharge.
Power Down after Overdisch
When ovschrge occurs, the FS3enter
into power-down mode, turning off all the timing
geratioand detection circuitry to reduce the
quiescent current to 0.05μ CC=2.0V). At the
The voltage of the battery ell falls below the
overcharge protection voltage (VOCP) and a load is
connected.
When the battery vois above VOCP, the
overcharge condition release even a load is
connected to the pac
ame time, the CS pin is pullto VCC through an
internal resistor.
Auto Power Down recovery
Overdiotection
The IC continues to operate even after the
overdischatate has been entered. The battery
voltage g o the overdischarge release
voltag(VODR) or higher is the only required
condition for the IC to return to the normal state.
When the voe battery cell goes belo
overdscharge protection voltage (Vbeyond
the overischarge delay time (eriod,
discharng is inhibited by turning off the ischarge
control MOSFET.
Supervising charger voltage
The default of overdiscdelay time is 100ms.
Inhibition of discharging is immediately released
when the voltage of the battery cell becomes hig
than overdischarge release voltage (VODR) thr
charging.
By supervising the charge voltage, charging can be
prohibited instantly when a charger with overvoltage
is connevted. The charger voltage detection circuit
supervises the voltage between the VDD and CSI
pins. When this voltage exceeds Vdet(Vdet <
(VDD – VCSI)),regardless of the battery voltage,the
charge FET control pin output alow level(CSI
level)signal and the charge FET is turned off. When
the charger voltage drops to Vrec or lower, the
charger FET control output level is dependent on
battery voltage.
Overcurrent Protection
In normal mode, the FS325 continuously monitors
the discharge current by sensinthe voltage of CS
pin. If the voltage of CS pin exceeds the overcurrent
protection voltage (VOIPd the overcurrent
delay time (TOI1) eriod, current protection
circuit operates and discharging is inhibited by
turning off the discharge control MOSFET. The
overcurrent conditioreturns to the normal mode
when the load is released or the impedance between
BATT+ and BATT- is larger than 150kΩ. The FS325
provides two overcurrent detection levels (0.13V and
Note: When a battery is connected to FS325
for the first time, it may not enter the normal
condition (dischargeable may not be
enabled). In this case, short the CS and VSS
pins or connect to a charger to restore to
the normal condition.
As the turn-on resistance of the external MOSFET
changes, the design of the overcurrent threshold
current changes accordingly.
12. Design Guide
Selection of External Control MOSFET
Because the overcurrent protection voltage is preset,
the threshold current for overcurrent detection is
determined by the turn-on resistance of the charge
and discharge control MOSFETs. The turn-on
resistance of the external control MOSFETs can be
determined by the equation: RON=VOIP/ (2 x IT) (IT
is the overcurrent threshold current). For example, if
the overcurrent threshold current IT is designed to
be 3A, the turn-on resistance of the external control
MOSFET must be 25mΩ. Be aware that turn-on
resistance of the MOSFET changes with
temperature variation due to heat dissipaton. It
changes with the voltage between gate and souce
as well. (Turn-on resistance of MOSFET inceases
as the voltage between gate and sorce decreaes).
Suppressing the Ripple and Disturbance
from Charger
To suppress the ripple and disturbance from charger,
connecting R1 and C1 to VCC is recommended.
Protection the CS pin
2 iused for latch-up protection when charger is
connected under overdischarge condition and
overstress protection at reverse connecting f a
charger.
13. Timing Diagram
Overcharge Condition Load Discharging Normal Condition
Charger
Load
VOCP
VOCR
VODR
VODP
VCC
CS
VCC
GND
VC
VOI1
GND
VCH
TOC
TOC
Overdischarge Condition Charging by a Charger Normal Condition
Charger
Load
VOCP
VOCR
VODR
VODP
VCC
CS
VCC
GND
VC
VI2
GND
VCH
TOD
TOD
Over Current Condition Normal Condition
Charger
Load
VOCP
VOCR
VODR
VODP
VCC
CS
VCC
GND
VC
VI2
VOI1
GND
TOI1
TOI2
14. Package Outline
Dimension (SOT-23-5)
Dimension (SSON-6_N6A)
Dimension (SSON-6_N6C)
15. Revision History
Version Date
Page
Diption
1.0
1.1
1.2
1.3
1.4
2010/06/02
ALL
4
24
Nrelese
Revse Product name list package SOT-23-5
Revise Package Outline
FS325C(VOCR)、FS325D(0V charging prohibit) function explain
Revise FS325D VCH、Tdet Specified
Add SSON-6 Package Information
Add SSON-6 Package Information
Add FS325D-N6C SSON-6 Package Information
2011/07/08
2011/09/08
2012/04/17
2012/10/08
4,13,1
16,17,18
3,4,5,17,18,19
26
3,4,618,19,20
1.5
2012/10/16
1.6
2013/11/26
28
Add FS325D-N6C SSON-6 Package Information
5,27
4
Revise FS325D-N6A SSON-6 Package Information
Revise VOI1 Specified Unit
1.7
201/12/25
28
2
Revise SSON-6_N6C Package Outline
Revised company address
Add Charger Over Current Detection Voltage Specified
1.8
1.9
2014//22
2015/06/8
3,4,18,19,20
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