S-8232NCFT datasheet, PDF - EEWORLD Datasheet

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S-8232NCFT: DescriptionPower Supply Support Circuit, Fixed, 2 Channel, PDSO8, TSSOP-8; CategoryPower/power management The power supply circuit; File Size375KB，24 Pages; ManufacturerABLIC

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S-8232NCFT Overview

Power Supply Support Circuit, Fixed, 2 Channel, PDSO8, TSSOP-8

S-8232NCFT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	ABLIC
Parts packaging code	SOIC
package instruction	TSSOP,
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G8
length	4.4 mm
Number of channels	2
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum supply voltage (Vsup)	16 V
Minimum supply voltage (Vsup)	2 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3 mm

S-8232NCFT Preview

Rev.4.1

_00

BATTERY PROTECTION IC (FOR A 2-SERIAL-CELL PACK)

S-8232 Series

The 8232 is a series of lithium-ion rechargeable battery protection

ICs incorporating high-accuracy voltage detection circuits and

delay circuits.

The S-8232 is suitable for a 2-serial-cell lithium-ion battery pack.

Features

(1)

Internal high-accuracy voltage detection circuit

Overcharge detection voltage

Overcharge release voltage

3.90 V

25 mV to 4.60 V

25 mV

5 mV- step

3.60 V

50 mV to 4.60 V

50 mV

5 mV- step

(The Overcharge release voltage can be selected within the range where a difference from

Overcharge detection voltage is 0 to 0.3 V)

Overdischarge detection voltage

Overdischarge release voltage

1.70 V

80 mV to 2.60 V

80 mV

50 mV- step

1.70 V

100 mV to 3.80 V

100 mV

50 mV - step

(The Overdischarge release voltage can be selected within the range where a difference from

Overdischarge detection voltage is 0 to 1.2 V)

Overcurrent detection voltage 1

0.07 V

20 mV to 0.30 V

20 mV

5 mV-step

(2)

(3)

(4)

High input-voltage device (absolute maximum rating: 18 V)

Wide operating voltage range:

2.0 V to 16 V

The delay time for every detection can be set via an external capacitor.

Each delay time for Overcharge detection, Overdischarge detection, Overcurrent detection are

“Proportion of hundred to ten to one.”

(5)

(6)

(7)

(8)

Two overcurrent detection levels (protection for short-circuiting)

Internal auxiliary over voltage detection circuit (Fail safe for over voltage)

Internal charge circuit for 0 V battery (Unavailable is option)

Low current consumption

Operation

Power-down mode

(9)

7.5

µA

typ. 14.2

µA

max (−40 to

+85 °C)

0.2 nA typ. 0.1

µA

max (−40 to

+85 °C)

TSSOP package (8-pin) 6.4 mm×3.1 mm

Applications

Lithium-ion rechargeable battery packs

Package

8-PinTSSOP (PKG code:FT008-A)

Seiko Instruments Inc.

Battery Protection IC (for a 2-serial-cell pack)

S-8232 Series

Rev. 4.1

_00

Selection Guide (01 .Nov ,2001)

Table1

Model/Item

Overcharge

detection

voltage1,2

CU1,2

)

4.25V±25mV

4.35V±25mV

4.25V±25mV

4.325V±25mV

4.25V±25mV

4.20V±25mV

4.30V±25mV

4.19V±25mV

4.325V±25mV

4.30V±25mV

4.28V±25mV

4.325V±25mV

4.295V±25mV

4.125V±25mV

4.30V±25mV

4.35V±25mV

4.325V±25mV

4.30V±25mV

4.325V±25mV

4.275 V±25 mV

4.35 V±25 mV

Overdischarge

Overcharge

detection

release voltage1,2

voltage1,2

CD1,2

)

DD1,2

)

4.05±50mV

4.15±50mV

4.28±50mV

4.05±50mV

4.325V±25mV

1),2)

4.05±50mV

4.00±50mV

4.05±50mV

4.19 V±25mV

Overdischarge

release

voltage1,2

DU1,2

)

3.00V±100mV

2.80V±100mV

2.70V±100mV

2.40V±100mV

3.00V±100mV

2.90V±100mV

3.00V±100mV

2.90V±100mV

2.50V±100mV

3.00V±100mV

2.00V±80mV

2.30V±80mV

3.00V±100mV

Overcurrent

detection

voltage1

IOV1

)

0.150V±20mV

0.300V±20mV

0.100V±20mV

0.300V±20mV

0.200V±20mV

0.300V±20mV

0.150V±20mV

0.200V±20mV

0.190V±20mV

0.300V±20mV

0.230V±20mV

0.100V±20mV

0.300V±20mV

0.190V±20mV

0.200V±20mV

0.300V±20mV

0.150V±20mV

0.20V±20mV

0.15V±20mV

Overcharge

0 V battery

detection delay charging

time (t

)

function

C3=0.22

1.0 s

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

Unavailable

Available

S-8232AAFT

S-8232ABFT

S-8232ACFT

S-8232AEFT

S-8232AFFT

S-8232AGFT

S-8232AHFT

S-8232AIFT

S-8232AJFT

S-8232AKFT

S-8232ALFT

S-8232AMFT

S-8232ANFT

S-8232AOFT

S-8232APFT

S-8232ARFT

S-8232ASFT

S-8232ATFT

S-8232AUFT

S-8232AVFT

S-8232AWFT

S-8232AXFT

S-8232AYFT

S-8232AZFT

S-8232NAFT

S-8232NCFT

S-8232NDFT

1):

2):

3):

4):

2.40V±80mV

2.30V±80mV

2.15V±80mV

2.30V±80mV

2.20V±80mV

2.40V±80mV

2.30V±80mV

2.00V±80mV

2.40V±80mV

2.00V±80mV

2.30V±80mV

2.00V±80mV

2.30V±80mV

2.00V±80mV

2.40V±80mV

2.00V±80mV

2.30V±80mV

2.00V±80mV

2.30V±80mV

2.40V±80mV

4.325V±25mV

1),3)

4.05±50mV

4.325V±25mV

1),3)

4.20±50mV

4.125±25mV

4.10±50mV

4.05V±50mV

4.15V±50mV

4.200V±50mV

4.05V±50mV

4.325V±25mV

1), 3)

4.05 V±50 mV

4.15 V±50 mV

2.20 V±80 mV 3.00 V±100 mV 0.20 V±20 mV

2.30 V±80 mV

0.15 V±20 mV

No overcharge detection/release hysteresis

The magnification of final overcharge is 1.11; other is 1.25.

No final overcharging function

Refer to the Description of Operation (*3).

Change in the detection voltage is available. Please contact SII sales office.

The overdischarge detection voltage can be selected within the range from 1.7 to 3.0 V.

When the overdischarge detection voltage is higher than 2.6 V, the overcharge detection voltage and the

overcharge release voltage are limited as table 2.

Overdischarge detection

voltage1,2 (V

DD1,2

)

1.70 to 2.60 V

1.70 to 2.80 V

1.70 to 3.00 V

Table 2

Overcharge detection

Voltage difference between overcharge detection voltage

voltage1,2 (V

CU1,2

)

and overcharge release voltage (V

CU1,2

- V

CD1,2

)

3.90 to 4.60 V

3.90 to 4.50 V

0 to 0.30 V

0 to 0.20 V

0 to 0.10 V

Seiko Instruments Inc.

Rev. 4.1

_00

Block Diagram

Battery Protection IC (for a 2-serial-cell pack)

S-8232 Series

VCC

Reference

voltage 1

SENS

Auxiliary

Over

charge

detector 1

Over charge

detector 1

Control

Logic

Delay circuit

control signal

Over discharge

detector 1

Over discharge

detector 2

COL

Over charge

detector 2

Over current

detection

circuit

Delay circuit

control signal

Delay circuit

control signal

Delay circuit

control signal

Delay circuit

DO,CO control signal

VSS

Auxiliary

Over charge

Reference detector 2

voltage 2

ICT

Figure 1

Output impedance when CO terminal output ‘L’ is higher than DO terminal. R

COL

resistor is connected with CO

terminal. Please refer ‘Electric Characteristics’.

Seiko Instruments Inc.

Battery Protection IC (for a 2-serial-cell pack)

S-8232 Series

Rev. 4.1

_00

Pin Assignment

Top View

TSSOP-8

Figure 2

Pin Description

Table 3

No.

Name

SENS

Description

Detection pin for voltage between SENS and VC (Detection for

overcharge and overdischarge)

FET gate connection pin for discharge control (CMOS output)

FET gate connection pin for charge control (CMOS output)

Detection pin for voltage between VM and VSS (Overcurrent detection

pin)

VSS

ICT

VCC

Negative power input pin

Capacitor connection pin for detection delay

Middle voltage input pin

Positive power input pin

Absolute Maximum Ratings

Table 4

Item

Input voltage between VCC and VSS

SENS Input terminal voltage

ICT Input terminal voltage

VM Input terminal voltage

DO output terminal voltage

CO output terminal voltage

Power dissipation

Operating temperature range

Storage temperature range

Symbol

SENS

ICT

opr

stg

Applied Pins

VCC

SENS

ICT

Rating

−0.3

to V

+18

−0.3

to V

+0.3

−0.3

to V

+0.3

−18

to V

+0.3

−0.3

to V

+0.3

−0.3

to V

+0.3

300

−40

+85

−40

+125

25°C

Unit

°C

Seiko Instruments Inc.

Rev. 4.1

_00

Battery Protection IC (for a 2-serial-cell pack)

S-8232 Series

Electrical Characteristics

Table 5

Item

Detection voltage

Overcharge detection voltage 1,2

Symbol

Condition Circuit

Unless otherwise noted, Ta

25°C

Notice

Min.

CU1,2

−0.025

CU1,2

×1.21

Typ.

CU1,2

×1.25

CU1,2

×1.11

CD1,2

DD1,2

DU1,2

IOV1

−1.20

−0.05

Max.

CU1,2

+0.025

CU1,2

×1.29

CU1,2

×1.15

CD1,2

+0.050

DD1,2

+0.080

DU1,2

+0.100

IOV1

+0.020

−0.83

0.6

Unit

CU1,2

1,2

Auxiliary

overcharge

detection V

CUaux1,2

voltage 1,2

(4)

CUaux

1,2

CU1,2

×1.25

CUaux1,2

CUaux

1,2

CU1,2

×1.11

Overcharge release voltage 1,2

CD1,2

Overdischarge detection voltage

1,2

Overdischarge release voltage 1,2

Overcurrent detection voltage 1

Overcurrent detection voltage 2

Temperature coefficient 1 for

detection voltage

(1)

Temperature coefficient 2 for

detection voltage

(2)

Delay time (C3=0.22

Overcharge detection

delay time1,2

Overdischarge detection

delay time 1,2

Overcurrent detection delay time1

Input voltage

Input voltage between

VCC and VSS

Operating voltage

Operating voltage between VCC

and VSS

(3)

Current consumption

during normal operation

Current consumption

at power down

Output voltage

DO”H”voltage

DO”L”voltage

CO”H”voltage

CO pin internal resistance

Resistance between VSS and CO

Internal resistance

Resistance between VCC and VM

Resistance between VSS and VM

0 V battery charging function

0 V charge starting voltage

0 V charge inhibiting voltage 1,2

(1)

(2)

(3)

(4)

DD1,2

DU1,2

IOV1

IOV2

COE1

COE2

Between 3.90 and

4.60

CU1,2

×1.25

1,2

CU1,2

×1.07

Between 3.60 and

CD1,2

4.60

−0.050

Between 1.70 and

DD1,2

2.60

−0.080

Between 1.70 and

DU1,2

3.80

−0.100

Between 0.07 to 0.30 V

IOV1

−0.020

Reference

−1.57

Ta=−40 to 85°C

−0.6

Ta=−40 to 85°C

−0.24

CU1,2

×1.11

mV/°C

CU1,2

DD1,2

IOV1

8,9

1.0 s

0.1 s

0.01 s

Absolute maximum

rating

0.73

6.7

−0.3

2.0

1.00

100

−

1.35

138

13.9

DSOP

OPE

PDN

V1=V2=3.6 V

V1=V2=1.5 V

2.1

7.5

0.0002

12.7

0.04

µA

DO(H)

DO(L)

CO(H)

COL

vcm

vsm

0CHA

0INH1,2

12,13

Iout=10

µA

Iout=10

µA

Iout=10

µA

−V

=9.4

Vcc−V

=0.5

−V

=1.1

0 V battery charging

Available

0 V battery charging

Unavailable

−0.05

−0.15

0.29

105

511

0.38

0.32

−0.003

+0.003

−0.019

0.6

240

597

0.75

0.88

+0.05

1.44

575

977

1.12

1.44

MΩ

kΩ

Temperature coefficient 1 for detection voltage should be applied to overcharge detection voltage, overcharge release

voltage, overdischarge detection voltage, and overdischarge release voltage.

Temperature coefficient 2 for detection voltage should be applied to overcurrent detection voltage.

The DO and CO pin logic are established at the operating voltage.

Auxiliary overcharge detection voltage is equal to the overcharge detection voltage times 1.11 for the products without

overcharge hysteresis, and times 1.25 for other products.

Seiko Instruments Inc.

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