X3101V28 Intersil, X3101V28 Datasheet - Page 28

• Manufacturer Part Number: X3101V28
• Description: IC PROTECT/MONITOR 3CELL 28TSSOP
• Manufacturer: Intersil

Specifications of X3101V28

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 6 V ~ 24 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Write Configuration Register (WCFIG)
The Write Configuration Register (WCFIG) instruc-
tion updates the static part of the Configuration Reg-
ister. These new values take effect immediately, for
example writing a new Over-discharge voltage limit.
However, to make these changes permanent, so they
remain if the cell voltages are removed, an EEWRITE
operation to the EEPROM array is required following
the WCFIG command. This command is shown in
Figure 14.
Figure 14. Write Configuration Register (WCFIG) Operation Sequence
Figure 15. Write Control Register (WCNTR) Operation Sequence
SCK
CS
SO
Control
SI
SCK
Bits
CS
SO
SI
High Impedance
High Impedance
28
0
0
1
WCFIG Instruction
1
2
WCNTR Instruction
(1 BYTE)
Old Control Bits
2
3
(1 Byte)
3
4
4
5
5
6
X3100, X3101
6
7
15 14
7
8
15 14
8
9
Register Data
Configuration
Write Control Register (WCNTRL)
The Write Control Register (WCNTRL) instruction
updates the contents of the volatile Control Register.
This command sets the status of the FET control
pins, the cell balancing outputs, the current sense
gain and external entry to the sleep mode. Since this
instruction controls a volatile register, no other
commands are required and there is no delay time
needed after the instruction, before subsequent
commands. The operation of the WCNTRL command
is shown in Figure 15.
(2 BYTE)
9
Register Data
Control
(2 Byte)
20 21 22 23
3
18 19 20 21
5
2
4
New Control Bits
1
3
0
2
22 23
1
0
January 3, 2008
FN8110.1