MAX1665S Datasheet, PDF (5/12 Pages) Maxim Integrated Products – Lithium-Ion Battery Pack Protector

Lithium-Ion Battery Pack Protector
MAX1665S
1, 8
PIN
MAX1665V
1
MAX1665X
—
—
—
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
—
8
8
NAME
I.C.
B4P
DSG
CHG
PKN
BN
B1P
B2P
B3P
Pin Description
FUNCTION
Internally Connected. Make no connection to this pin.
Cell 4 Positive Input. Connect to the positive terminal of the fourth
series Li+ cell.
Discharge Control Output. Drives the gate of an external N-channel
MOSFET to control the discharge path.
Charge Control Output. Drives the gate of an external N-channel
MOSFET to control the charge path.
Pack Negative Input
Connect to the negative terminal of the first series Li+ cell.
Cell 1 Positive Input. Connect to the positive terminal of the first
series Li+ cell.
Cell 2 Positive Input. Connect to the positive terminal of the second
series Li+ cell.
Cell 3 Positive Input. Connect to the positive terminal of the third
series Li+ cell.
Table 1. Functionality Truth Table for V_BN < V_PKN + 0.018V (Discharge Mode)
CHARGE
DISCHARGE
OVERCURRENT OVERCURRENT
OVERVOLTAGE
UNDERVOLTAGE
CHG
DSG
GATE
CLOCKED
MAX
SUPPLY
CURRENT*
(µA)
0
0
0
0
High
High
No
25
0
0
0
1
Low
Low
No
1
0
0
1
0
Low
High
No
25
0
0
1
1
Low
Low
No
1
0
1
0
0
Gated Gated
Yes
25
0
1
0
1
Low
Low
No
1
0
1
1
0
1
1
0
Low
Gated
Yes
25
1
Low
Low
No
1
*Assuming no load on CHG or DSG.
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