ISL9208IRZ-T Intersil, ISL9208IRZ-T Datasheet - Page 16

• Manufacturer Part Number: ISL9208IRZ-T
• Description: IC MULTI-CELL LI-ION PROT 32-QFN
• Manufacturer: Intersil

Specifications of ISL9208IRZ-T

• Function: Battery Monitor
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 5 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SETTING
BIT
OCCV1
OCCT1
7
6
5
4
3
2
1
0
BIT 6
BIT 1
Bit 7
Bit 4
Bit 3
Bit 2
0
1
1
0
0
1
1
0
ATMPOFF
Turn off automatic external temp scan
DIS3
Disable 3.3V reg
TMP3ON
Turn on Temp 3.3V
DISXTSD
Disable external thermal shutdown
DISITSD
Disable internal thermal shutdown
POR
Force POR
DISWKUP
Disable WKUP pin
WKPOL
Wake Up Polarity
Turn off automatic OC charge
Divide discharge time by 64
Divide charge time by 32
Short circuit long delay
FUNCTION
DENOCC
SCLONG
16
OCCV0
OCCT0
control
CTDIV
DTDIV
BIT 5
BIT 0
0
1
0
1
0
1
0
1
TABLE 9. FEATURE SET CONFIGURATION REGISTER (ADDR: 07H)
TABLE 8. CHARGE/TIME SCALE CONFIG REGISTER (ADDR: 06H)
When set to ‘1’ this bit disables the automatic temperature scan. When set to ‘0’, the temperature
is turned on for 5ms in every 640ms.
Setting this bit to “1” disables the internal 3.3V regulator. Setting this bit to “1” requires that there
be an external 3.3V regulator connected to the RGO pin.
Setting this bit to “1” turns ON the TEMP3V output to the external temperature sensor. The
output will remain on as long as this bit remains “1”.
Setting this bit to “1” disables the automatic shutdown of the cell balance and power FETs in
response to an external over-temperature condition. While the automatic response is disabled,
the XOT flag is set so the microcontroller can initiate a shutdown based on the XOT flag.
Setting this bit to “1” disables the automatic shutdown of the cell balance and power FETs in
response to an internal over-temperature condition. While the automatic response is disabled,
the IOT flag is set so the microcontroller can initiate a shutdown based on the IOT flag.
Setting this bit to “1” forces a POR condition. This resets all internal registers to zero.
Setting this bit to “1” disables the WKUP pin function.
CAUTION: Setting this pin to ‘1’ prevents a wake up condition. If the device then goes to sleep,
it cannot be waken without a communication link that resets this bit, or by power cycling the
device.
Setting this bit to “1” sets the device to wake up on a rising edge at the WKUP pin.
Setting this bit to “0” sets the device to wake up on a falling edge at the WKUP pin.
When set to ‘0’, a charge overcurrent condition automatically turns off the FETs.
When set to ‘1’, a charge overcurrent condition will not automatically turn off the FETs.
In either case, this condition sets the COC bit, which also turns on the TEMP3V output.
V
V
V
V
When this bit is set to ‘0’, a short circuit needs to be in effect for 190us before a shutdown
begins. When this bit is set to ‘1’, a short circuit needs to be in effect for 10ms before a
shutdown begins.
When set to “1”, the charge overcurrent delay time is divided by 32.
When set to “0”, the charge overcurrent delay time is divided by 1.
When set to “1”, the discharge overcurrent delay time is divided by 64.
When set to “0”, the discharge overcurrent delay time is divided by 1.
t
t
t
t
OCC
OCC
OCC
OCC
OCD
OCD
OCD
OCD
= 80ms (2.5ms if CTDIV=1)
= 160ms (5ms if CTDIV=1)
= 320ms (10ms if CTDIV=1)
= 640ms (20ms if CTDIV=1)
= 0.10V
= 0.12V
= 0.14V
= 0.16V
ISL9208
OVERCURRENT CHARGE VOLTAGE THRESHOLD
OVERCURRENT CHARGE TIME-OUT
DESCRIPTION
FUNCTION
November 2, 2007
FN6446.1