SI9730DBY-T1 datasheet(3/14 Pages) VISHAY

Part #	SI9730DBY-T1

Description	Dual-Cell Lithium Ion Battery Control IC

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Manufacturer	VISHAY [Vishay Siliconix]

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Si9730

Vishay Siliconix

Document Number: 70658

S-40135—Rev. F, 16-Feb-04

www.vishay.com

3

SPECIFICATIONS

Test Condition

Limits

TA = −25 to 85_C

Parameter

Symbol

Test Condition

Unless Otherwise Specified

Mina

Typb

Maxa

Unit

Analog Section (cont’d)

V

4 05 V

TA = 25_C

4.15

4.20

4.25

VOC1

Cell 1

VC2 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.1

4.27

A

Cell 1

VDD − VM = 8.6 V

TA = 85_C

4.1

4.27

A

Suffix

V

4 05 V

TA = 25_C

4.15

4.20

4.25

VOC2

Cell 2

VC1 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.1

4.27

Cell 2

VDD − VM = 8.6 V

TA = 85_C

4.1

4.27

V

4 05 V

TA = 25_C

4.2

4.25

4.30

VOC1

Cell 1

VC2 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.15

4.32

B

Cell 1

VDD − VM = 8.6 V

TA = 85_C

4.15

4.32

B

Suffix

V

4 05 V

TA = 25_C

4.2

4.25

4.30

VOC2

Cell 2

VC1 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.15

4.32

Over-Charge

Cell 2

VDD − VM = 8.6 V

TA = 85_C

4.15

4.32

V

Over-Charge

Detect Threshold (Rising)

V

4 05 V

TA = 25_C

4.18

4.22

4.25

V

VOC1

Cell 1

VC2 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.12

4.30

C

Cell 1

VDD − VM = 8.6 V

TA = 85_C

4.12

4.25

C

Suffix

V

4 05 V

TA = 25_C

4.18

4.22

4.25

VOC2

Cell 2

VC1 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.12

4.30

Cell 2

VDD − VM = 8.6 V

TA = 85_C

4.12

4.25

V

4 05 V

TA = 25_C

4.28

4.32

4.35

VOC1

Cell 1

VC2 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.22

4.40

D

Cell 1

VDD − VM = 8.6 V

TA = 85_C

4.22

4.35

D

Suffix

V

4 05 V

TA = 25_C

4.28

4.32

4.35

VOC2

Cell 2

VC1 = 4.05 V

VDD − VM = 8.6 V

TA = −25_C

4.22

4.40

Cell 2

VDD − VM = 8.6 V

TA = 85_C

4.22

4.35

Over-Charge Threshold Difference

VOC1 − VOC2

20

Over-Charge Detect Threshold

Cell 1

VOC_H1

VDD VM = 8 6 V

VC2 = 4.05 V

10

mV

Over-Charge Detect Threshold

Hysteresisc

Cell 2

VOC_H2

VDD − VM = 8.6 V

VC1 = 4.05 V

10

Over-Discharge

Cell 1

VODC1

VC2 = 2.6 V

2.1

2.2

2.3

V

Over-Discharge

Detect Threshold (Falling)

Cell 2

VODC2

VM = VSS

VC1= 2.6 V

2.1

2.2

2.3

V

Cell Balancing Current

Cell 1

IBAL1

VM = VSS

VC1= 4.4 V, VC2= 4.05 V

9

15

30

Cell Balancing Current

Cell 2

IBAL2

VC2= 4.4 V, VC1= 4.05 V

9

15

30

mA

Timer Charge Current

ITIMER(C)

VC2 = 3.3 V, VM = VSS

VC = VSS, TA = 25_C

−0.5

mA

Timer Discharge Current

ITIMER(D)

VC1 = VC2 = 3.3 V, VDD = VM

VDD − VC = 6.1 V, TA = 25_C

1.0

mA

DL2 Time (Over-Charge)

tDL2OC

VC1 = 4.05 V, VDD − VM = 10 V

CD = 500 pF, TA = 25_C, See Figure 4

27

40

60

ms

DL2 Time (Over-Discharge)

tDL2ODC

VC1 = 2.6 V, VM = VSS, CD = 500 pF

TA = 25_C, See Figure 5

27

40

60

ms

External Short Circuit Sense Current

IVMSHORT

VC1 = VC2 = 4.4 V, VM = VDD

30

300

mA

Reset Threshold

VRTH

VC1 = VC2 = 4.05 V, See Figure 3

42

60

100

mV

Center Tap, Average Bias Current

IVC

VC1 = VC2 = 4.05 V, VM = VDD

−2

2

mA

Overcharge Load Detect

tOCC

VC1 = VC2 = 4.4 V, CD = 500 pF

CL = 500 pF, DCO to VSS, See Figure 1

40

ms

Power-Down Charger Detect Threshold

VCHPD

VC1 = 2 V, VC2 = 2.4 V, See Figure 6

1.1

V

DCO Pulse Width

tPW

CL = 500 pF, DCO to VSS, See Figure 7

520

ms

Notes

a.

The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.

b.

Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.

c.

Guaranteed by design, not subject to production test.

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