FS3332_技术文档

REV. 1.3 FS3332-DS-13_EN

May 2014

Datasheet

FS3332

Two 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 Town, Taipei County 251, Taiwan

Tel.：886-2-28094742

Fax：886-2-28094874

www.ic-fortune.com

This manual contains new product information. Fortune Semiconductor Corporation reserves the rights to

modify the product specification without further notice. No liability is assumed by Fortune Semiconductor

Corporation as a result of the use of this product. No rights under any patent accompany the sale of the

product.

1. General Description

3. Ordering Information

The FS3332 Series are protection ICs for

2-serial-cell lithium-ion/lithium-polymer rechargeable

batteries and include high-accuracy voltage

detectors and delay circuits.

FS3332 x-P (P stands for Pb free)

Serial code *

*: Refer to the product name list on next page.

These ICs are suitable for protecting 2-cell

rechargeable lithium-ion/lithium-polymer battery

packs from overcharge, overdischarge, and

over-current

4. Applications

 Protection IC for 2-Cell Lithium-Ion /

Lithium-Polymer Battery Pack

 Portable DVD, DSC, PDA, etc.

2. Features

 Low supply current

 Normal Operation : 7.5μ A typ. 14.2μ A max.

Power-down mode : 0.3μ A typ.

 Overcharge detection voltage

﹝VOCU﹞

﹝VOCR﹞

﹝VODL﹞

﹝VODR﹞

﹝VOI1﹞

﹝VOI2﹞

3.90V~4.60V, Accuracy of 25mV

 Overcharge release voltage

3.60V~4.60V, Accuracy of 50mV

 Over-discharge detection voltage

1.70V~2.60V, Accuracy of 80mV

 Over-discharge release voltage

1.70V~3.80V, Accuracy of 100mV

 Over current detection voltage

0.07V~0.30V, Accuracy of 20mV

 Short circuit detection voltage

Fixed at 1.0V

 Delay times are set by an external capacitor. Each

delay time for Overcharge detection,

Over-discharge detection, Over-current detection

are “Proportion of hundred of ten to one”

 Two over-current detection levels (protection for

short-circuit)

 Internal auxiliary over voltage detection circuit

(Fail safe for over voltage)

 High-withstanding-voltage devices Absolute

maximum rating: 18 V

 Wide operating temperature range -40 to +85°C

 Wide supply voltage range

2.0 ~ 16V

 8-pin TSSOP Pb-free package

5. Product Name List

0 V Battery

Charging

Function

Overcharge

detection

voltage

Overcharge

release

voltage

Over-discharge Over-discharge Over-current

detection

release

detection

Model

voltage

[VOCU] (V)

[VOCR] (V)

[VODL] (V)

[VODR] (V)

[VOI1] (mV)

4.350±0.025

4.150±0.050

2.30±0.080

3.00±0.100

300±20

FS3332C

No

6. Pin Configuration

Pin No. Symbol

Description

1

SENS Detection pin for voltage between SENS and VC (Detection

for overcharge and over-discharge)

2

3

4

5

DO

CO

FET gate connection pin for discharge control

FET gate connection pin for charge control

VM

Input pin for current sense (Over-current detection pin)

VSS

Negative power input pin

6

7

ICT

VC

Capacitor connection pin for detection delay

Connection for negative voltage of battery 1 and

positive voltage of battery 2

8

VDD

Positive power input pin

7. Functional Block Diagram

8. Typical Application Circuit

Figure 2

9. Absolute Maximum Ratings

(VSS=0V, Ta=25°C unless otherwise specified)

Item

Symbol

Rating

VSS-0.3 to VSS +18

Unit

Input voltage between VDD and VSS *

VDD

V

SENS input pin voltage

ICT input pin voltage

VSENS VSS -0.3 to VDD +0.3

VICT

VSS -0.3 to VDD +0.3

CO output pin voltage

DO output pin voltage

VM input pin voltage

VC input pin voltage

Power dissipation

VCO

VDO

VVM

VVC

PD

VVM -0.3 to VDD +0.3

VSS -0.3 to VDD +0.3

VDD -18 to VDD +0.3

VSS -0.3 to VDD +0.3

300

V

mW

°C

Operating Temperature Range

TOP

-40 to +85

Storage Temperature Range

TST

-40 to +125

°C

Note: FS3332 contains a circuit that will protect it from static discharge; but please take special care

that no excessive static electricity or voltage which exceeds the limit of the protection circuit

will be applied to it.

* Pulse (μsec) noise exceeding the above input voltage (VSS +12V) may cause damage to

the IC.

10. Electrical Characteristics

(Vss=0V, Ta=25°C unless otherwise specified)

PARAMETER

CURRENT CONSUMPTION

Supply Current

Power-Down Current

OPERATING VOLTAGE

Operating input voltage

DETECTION VOLTAGE

CONDITIONS

SYMBOL

Min

Typ

Max

UNIT

VDD=7V(2*3.5V)

VDD=4.0V(2*2V)

IDD

IPD

7.5

0.3

12.7

0.6

μA

VDD-VSS

VDS1

2.0

16

V

VOCU

-0.025

VOCU*

1.21

VOCR

-0.050

VODL

-0.080

VODR

-0.100

VOI1

VOCU

+0.025

VOCU*

1.29

VOCR

+0.050

VODL

+0.080

VODR

+0.100

VOI1

Overcharge detection voltage

VOCU

VCUAUX1,2

VOCR

VOCU

Auxiliary overcharge detection

Voltage 1,2

VOCU*

1.25

Overcharge release voltage

VOCR

VODL

VODR

V

Over-discharge detection voltage

Over-discharge release voltage

Over current detection voltage 1

VODL

VODR

VOI1

VOI2

VOI1

1.0

V

-0.020

0.5

+0.020

1.5

Over current detection voltage 2

DELAY TIME(C3=0.22μF)

Overcharge detection delay time

Over-discharge detection delay time

Over current detection delay time

OTHER

VSS reference

TOC

TOD

TOI1

1.00

100

10

s

ms

138

13.9

CO pin output “H” voltage

DO pin output “H” voltage

Voh1

Voh2

VDD-0.15 VDD-0.019

VDD-0.05 VDD-0.003

VDD

V

DO pin output “L” voltage

Vol2

VSS

0.29

105

511

VSS+0.003 VSS+0.05

V

Resistance between VSS and CO

Resistance between VDD and VM

Resistance between VSS and VM

0 V battery charge starting voltage

RCOL

RVMD

RVSM

V0CHA

0.6

240

597

No

1.44

575

977

MΩ

kΩ

V

(Vss=0V, Ta=-40°C ~ +85°C unless otherwise specified)

PARAMETER

CURRENT CONSUMPTION

Supply Current

Power-Down Current

OPERATING VOLTAGE

Operating input voltage

DETECTION VOLTAGE

CONDITIONS

SYMBOL

Min

Typ

Max

UNIT

VDD=7V(2*3.5V)

VDD=4.0V(2*2V)

IDD

IPD

7.5

0.3

14.2

1.0

μA

VDD-VSS

VDS1

2.0

16

V

VOCU

-0.055

VOCU*

1.19

VOCR

-0.080

VODL

-0.110

VODR

-0.130

VOI1

VOCU

+0.045

VOCU*

1.31

VOCR

+0.070

VODL

+0.100

VODR

+0.120

VOI1

Overcharge detection voltage

VOCU

VCUAUX1,2

VOCR

VOCU

Auxiliary overcharge detection

Voltage 1,2

VOCU*

1.25

Overcharge release voltage

VOCR

VODL

VODR

V

Over-discharge detection voltage

Over-discharge release voltage

Over current detection voltage 1

VODL

VODR

VOI1

VOI2

VOI1

1.0

V

-0.033

0.4

+0.033

1.6

Over current detection voltage 2

DELAY TIME(C3=0.22μF)

Overcharge detection delay time

Over-discharge detection delay time

Over current detection delay time

OTHER

VSS reference

TOC

TOD

TOI1

1.00

100

10

s

ms

67

6.3

141

14.7

CO pin output “H” voltage

DO pin output “H” voltage

Voh1

Voh2

VDD-0.27 VDD-0.019

VDD-0.17 VDD-0.003

VDD

V

DO pin output “L” voltage

Vol2

VSS

0.22

79

VSS+0.003 VSS+0.17

V

Resistance between VSS and CO

Resistance between VDD and VM

Resistance between VSS and VM

0 V battery charge starting voltage

RCOL

RVMD

RVSM

V0CHA

0.6

240

597

No

2.20

878

1491

MΩ

kΩ

V

387

11. Measurement Circuits

Measurement 1 Measurement Circuit 1

Set S1=OFF, V1=V2=3.6V, and V3=0V under normal condition. Increase V1 from 3.6V gradually. The V1

voltage when CO = 'L' is overcharge detection voltage 1 (VCU1). Decrease V1 gradually. The V1 voltage

when CO = 'H' is overcharge release voltage 1 (VCR1). Further decrease V1. The V1 voltage when DO =

'L' is overdischarge detection voltage 1 (VDL1). Increase V1 gradually. The V1 voltage when DO = 'H' is

overdischarge release voltage 1 (VDR1). Set S1=ON, and V1=V2=3.6V and V3=0V under normal

condition. Increase V1 from 3.6V gradually. The V1 voltage when CO = 'L' is auxiliary overcharge

detection voltage 1 (VCUaux1).

Measurement 2 Measurement Circuit 1

Set S1=OFF, V1=V2=3.6V, and V3=0V under normal condition. Increase V2 from 3.6V gradually. The V2

voltage when CO = 'L' is overcharge detection voltage 2 (VCU2). Decrease V2 gradually. The V2 voltage

when CO = 'H' is overcharge release voltage 2 (VCR2). Further decrease V2. The V2 voltage when DO =

'L' is overdischarge voltage 2 (VDL2). Increase V2 gradually. The V2 voltage when DO = 'H' is

overdischarge release voltage 2 (VDR2). Set S1=ON, and V1=V2=3.6V and V3=0V under normal

condition. Increase V2 from 3.6V gradually. The V2 voltage when CO = 'L' is auxiliary overcharge

detection voltage 2 (VCUaux2).

Measurement 3 Measurement Circuit 1

Set S1=OFF, V1=V2=3.6V, and V3=0V under normal condition. Increase V3 from 0V gradually. The V3

voltage when DO = 'L' is overcurrent detection voltage 1 (VIOV1). Set S1=ON, V1=V2=3.6V, V3=0 under

normal condition. Increase V3 from 0 V gradually. (The voltage change rate < 1.0V/ms) (V1+V2-V3)

voltage when DO = 'L' is overcurrent detection voltage 2 (VIOV2).

Measurement 4 Measurement Circuit 2

Set S1=ON, V1=V2=3.6V, and V3=0V under normal condition and measure current consumption. Current

consumption I1 is the normal condition current consumption (IDD). Set S1=OFF, V1=V2=1.5V under

overdischarge condition and measure current consumption. Current consumption I1 is the power-down

current consumption (IPD).

Measurement 5 Measurement Circuit 2

Set S1=ON, V1=V2=V3=1.5V, and V3=2.5V under overdischarge condition. (V1+V2-V3)/I2 is the internal

resistance between VCC and VM (RVMD). Set S1=ON, V1=V2=3.5V, and V3=1.1V under overcurrent

condition. V3/I2 is the internal resistance between VSS and VM (RVSM).

Measurement 6 Measurement Circuit 3

Set S1=ON, S2=OFF, V1=V2=3.6V, and V3=0V under normal condition. Increase V4 from 0V gradually.

The V4 voltage when I1 = 10µA is DO 'H' voltage (Voh2). Set S1=OFF, S2=ON, V1=V2=3.6V, and

V3=0.5V under overcurrent condition. Increase V5 from 0V gradually. The V5 voltage when I2 = 10 µA is

the DO 'L' voltage (Vol2).

Measurement 7 Measurement Circuit 4

Set S1=ON, S2=OFF, V1=V2=3.6V and V3=0V under normal condition. Increase V4 from 0V gradually.

The V4 voltage when I1 = 10µA is the CO 'H' voltage (Voh1). Set S1=OFF S2=ON, V1=V2=4.7V, V3=0V,

and V4=9.4V under over voltage condition. (V5)/I2 is the CO pin internal resistance (RCOL).

Measurement 8 Measurement Circuit 5

Set V1=V2=3.6V, and V3=0V under normal condition. Increase V1 from (VCU1-0.2V) to (VCU1+0.2V)

immediately (within 10µs). The time after V1 becomes (VCU1+0.2V) until CO goes 'L' is the overcharge

detection delay time 1 (tCU1). Set V1=V2=3.5V, and V3=0V under normal condition. Decrease V1 from

(VDL1+0.2V) to (VDL1-0.2V) immediately (within 10µs). The time after V1 becomes (VDL1-0.2V) until DO

goes 'L' is the overdischarge detection delay time 1 (tDL1).

Measurement 9 Measurement Circuit 5

Set V1=V2=3.6V, and V3=0V under normal condition. Increase V2 from (VCU2-0.2V) to (VCU2+0.2V)

immediately (within 10µs). The time after V2 becomes (VCU2+0.2V) until CO goes 'L' is the overcharge

detection delay time 2 (tCU2). Set V1=V2=3.6V, and V3=0V under normal condition. Decrease V2 from

(VDL2+0.2V) to (VDL2-0.2V) immediately (within 10µs). The time after V2 becomes (VDL2-0.2V) until DO

goes 'L' is the overdischarge detection delay time 2 (tDL2).

Measurement 10 Measurement Circuit 5

Set V1=V2=3.6V, and V3=0V under normal condition. Increase V3 from 0V to 0.5V immediately (within

10µs). The time after V3 becomes 0.5V until DO goes 'L' is the overcurrent detection delay time 1 (tIOV1).

Measurement 11 Measurement Circuit 6

Set V1=V2=0V, and V3=2V, and decrease V3 gradually. The V3 voltage when CO = 'L' (VDD-0.3V or

lower) is the 0V charge starting voltage (V0CHA).

12. Description of Operation

discharging current flows through the parasitic

diode in the charging control FET. At this

moment the VM pin potential becomes Vf, the

voltage for the parasitic diode, higher than the

VSS level. When the battery voltage goes

under overcharge detection voltage (VCU1,2)

and provided that the VM pin voltage is higher

than over-current detection voltage 1, the IC

releases the overcharge status and returns to

the normal status.

Normal Condition

This IC monitors the voltage of the battery connected

between the VDD and VSS pins and the voltage

difference between the VM and VSS pins to control

charging and discharging. When the voltages of two

batteries are in the range from over-discharge

detection voltage (VDL1,2) to overcharge detection

voltage (VCU1,2), and the VM pin voltage is in the

range from the charger detection voltage (VCHA) to

over-current detection voltage 1 (VIOV1), the IC

turns both the charging and discharging control FETs

on. This condition is called the normal status, and in

this condition charging and discharging can be

carried out freely. The VM and VSS pins are shorted

by the RVSM resistor in this condition.

Over-discharge Condition

When one of the battery voltages falls below

over-discharge detection voltage (VDL1,2) during

discharging in the normal status and detection

continues for the over-discharge detection delay

time (tDL1,2) or longer, the discharging control FET

turns off to stop discharging. This condition is called

the over-discharge status. When the discharging

control FET is turned off, the VM pin voltage is pulled

up by the resistor between the VM and VDD pins in

the IC (RVMD). When the voltage difference

between the VM and VDD pins then is over-current

Caution: When the battery is connected for the first

time, discharging may not be enabled. In this case,

short the VM and VSS pins or connect the charger to

restore the normal status.

Overcharge Condition

When one of the battery voltages becomes higher

than overcharge detection voltage (VCU1,2) during

charging in the normal status and detection

continues for the overcharge detection delay time

(tCU1,2) or longer, the charging control FET turns off

to stop charging. When one of the battery voltages

becomes higher than auxiliary overcharge detection

voltage (VCUAUX1,2), the charging control FET

turns off to stop charging, too. Both conditions are

called the overcharge status. The VM and VSS pins

are shorted by the RVSM resistor in this condition.

detection voltage

2

or lower, the current

consumption is reduced to the power-down current

consumption (IPDN). This condition is called the

power-down status. The power-down status is

released when a charger is connected and the

voltage difference between the VM and VDD pins is

over-current detection voltage 2 or higher. Moreover,

when all the battery voltages become over-discharge

detection voltage (VDL1,2) or higher, the discharging

FET turns on and returns to the normal status.

The overcharge status is released in the

following two cases (a and b).

a) The battery voltage which exceeded

overcharge detection voltage (VCU1,2) falls

below the overcharge release voltage

(VCR1,2), the charging control FET turns on

and returns to the normal status.

b) The battery voltage which exceeded

overcharge detection voltage (VCU1,2) is

equal to or higher than the overcharge release

voltage (VCR1,2), the charger is removed, a

load is connected and discharging starts, the

charging control FET turns on and returns to

the normal status. Just after the load is

connected and discharging starts, the

Over Current Condition

Delay Circuits

When a battery in the normal status is in the status

where the voltage of the VM pin is equal to or higher

than the over-current detection voltage because the

discharge current is higher than the specified value

and the status lasts for the over-current detection

delay time, the discharge control FET is turned off

and discharging is stopped. This status is called the

over-current status. In the over-current status, the

VM and VSS pins are shorted by the resistor

between VM and VSS (RVSM) in the IC. The

charging FET is also turned off. The voltage of the

VM pin is at the VDD potential as long as the load is

connected. When the load is disconnected, the VM

pin returns to the VSS potential. This IC detects the

status when the impedance between the EB

The overcharge detection delay time (tCU1,2), the

over-discharge detection delay time (tDL1,2), and

the over-current detection delay time 1 (tOI1) are set

via an external capacitor (C3). One capacitor

determines each delay time, and the delay times are

correlated by following ratio:

Overcharge delay time : Over-discharge

delay time : Over-current delay time = 100 :

10 : 1

The delay times are calculated as follows:

Overcharge detection delay time

tCU [s] = delay factor 1 x C3 [μF]

and EB-

(see typical application circuit)

Delay factor 1 = (2.500 min, 4.545 typ, 9.364

max)

increases and is equal to the impedance that

enables automatic restoration and the voltage at the

VM pin returns to over-current detection voltage 1

(VIOV1) or lower and the over-current status is

restored to the normal status.

Over-discharge detection delay time

tDL [s] = delay factor 2 x C3 [μF]

Delay factor 2 = (0.3045 min, 0.4545 typ,

0.6409 max)

Caution: The impedance that enables

automatic restoration varies

depending on the battery

voltage and the set value of

over-current detection voltage

1.

Over-current detection delay time 1

tIOV1 [s] = delay factor 3 x C3 [μF]

Delay factor 3 = (0.02864 min, 0.04545 typ,

0.06682 max)

Note: The over-current detection delay

time 2 is fixed by internal circuit

13. Timing Diagram

Overcharge detection

Over-discharge detection

Over-current detection

14. Typical Characteristics

Detection Voltage Temperature Characteristics

Over Charge Detection Voltage

OVERCHARGE VOLTAGE

SENS V

VC V

4.3

4.29

4.28

4.27

4.26

4.25

4.24

4.23

4.22

4.21

4.2

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Over Charge Release Voltage

OVERCHARGE RELEASE

VOLTAGE

VOCR1 V

VOCR2 V

4.1

4.09

4.08

4.07

4.06

4.05

4.04

4.03

4.02

4.01

4

-40 -30 -20 -10

0

10

20

30

40

50

60

70

80

Temperature(℃)

Auxiliary Over Charge Detection Voltage

Auxiliary overcharge detection Voltage

Vcuaux1 V

Vcuaux2 V

5.34

5.32

5.3

5.28

5.26

5.24

5.22

5.2

5.18

5.16

5.14

5.12

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Over Dis-Charge Detection Voltage

OVERDISCHARGE VOLTAGE

VODL1 V

VODL2 V

2.45

2.44

2.43

2.42

2.41

2.4

2.39

2.38

2.37

2.36

2.35

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Over Dis-Charge Release Voltage

OVERDISCHARGE RELEASE VOLTAGE

VODR1 V

VODR2 V

3.15

3.1

3.05

3

2.95

2.9

2.85

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Delay Time Temperature Characteristics

Over Charge Detection Delay Time

OVERCHARGE DELAY TIME

TOC mS

1500

1400

1300

1200

1100

1000

900

800

700

600

500

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Over Dis-Charge Detection Delay Time

OVERDISCHARGE DELAY TIME

TOD mS

150

140

130

120

110

100

90

80

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

Overcurrent1 Detection Delay Time

OVERCURRENT1 DELAY TIME

TOI1 mS

8

7.5

7

6.5

6

-40 -30 -20 -10

0

10 20 30 40 50 60 70 80

Temperature(℃)

15. Package Outline

8-Pin TSSOP

16. Revision History

Version

1.0

Date

Page

Description

2007/01/08

2009/06/03

2009/06/17

2014/05/22

-

New Release

1.1

8

4

2

Delete 0V Charge

1.2

Delete FS3332A、FS3332B、FS3332L

1.3

Revise company address


型号：	FS3332
厂家：	Fortune Semiconductor
描述：	Two Cell Lithium-ion/Polymer Battery Protection 电池
文件：	总23页 (文件大小：997K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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