 English |
|
|
|
|
|
|
|
| SI9730 Datasheet, PDF (6/14 Pages) Vishay Siliconix – Dual-Cell Lithium Ion Battery Control IC | |||
| |||
| ◁ |
Si9730
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
DCO Rise and Fall Times vs. Capacitance
1000.00
100.00
10.00
Rise
1.00
Fall
0.10
TA = 85_C
TA = â25_C
0.01
100
1000
DCO Capacitance (pF))
10000
PIN CONFIGURATION
VM 1
NC 2
VDD 3
CD 4
SO-8
Top View
8 DCO
7 VSS
6 IS
5 VC
ORDERING INFORMATION
Part Number
Si9730ABY-T1
Si9730ABY-T1âE3 (Lead Free)
Si9730BBY-T1
Si9730BBY-T1âE3 (Lead Free)
Si9730CBY-T1
Si9730CBY-T1âE3 (Lead Free)
Si9730DBY-T1
Si9730DBY-T1âE3 (Lead Free)
VOC1/2 Typ. Temp Range
4.20 V
4.25 V
4.22 V
â25_ to 85_C
4.32 V
PIN DESCRIPTION
Pin
Number
Symbol
Description
1
VM
Negative Battery Pack Terminal - connection for external negative terminal of the battery pack.
2
NC
No Connection, do not connect this pin.
3
VDD
Dual Cell Positive Terminal - connection for positive terminal of dual series connected LiI+ cells.
Delay Capacitor Connection - an external capactior connected across CD and Vss allows additional charge time (DL2, see
4
CD
Detailed Description ) after a charge error has occured. Suggested capacitor values are shown in DL2 Period vs. Capacitance
Curves.
5
VC
Dual Cell Center Tap Connection - monitors individual battery voltages for overcharge and overdischarge errors.
6
Is
Current Sense Comparator Input - monitors load current for short circuit conditions . If VILIMIT is exceeded, then DCO opens the
low-side switch, disconnecting the cells.
7
VSS
Dual Cell Negative Terminal - connection for negative terminal of dual series connected LiI+ cells.
8
DCO
Low-side Switch Gate Driver Output - drives the gate of two external source connected n-channel MOSFETs. DCO swings
from VOL to VDD.
www.vishay.com
6
Document Number: 70658
S-40135âRev. F, 16-Feb-04
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese