ISL6295CVZ Intersil, ISL6295CVZ Datasheet - Page 23

• Manufacturer Part Number: ISL6295CVZ
• Description: IC FUEL GAUGE LOW VOLTAGE8-TSSOP
• Manufacturer: Intersil

Specifications of ISL6295CVZ

• Function: Fuel, Gas Gauge/Monitor
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 2.8 V ~ 7 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Battery Management Function: Fuel Gauge
• Supply Voltage Range: 2.8V To 7V
• Interface Type: 2-Wire, Serial, I2C
• Battery Ic Case Style: TSSOP
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Cal/Setup Mode AND Registers
Cal/Setup mode allows the pack designer to re-program the
default SMBus address and/or change the calibration
parameters programmed at the factory for bandgap, voltage
reference, and oscillators trim values.
Entering Cal/Setup requires the host to request three
consecutive and specific incorrect SMBus addresses with no
interruptions between requests. These addresses are:
Addr1
Addr2
Addr3
After each address is sent, the ISL6295 will NACK the
address. Once the sequence is complete, the ISL6295 will
enter Cal/Setup mode and allow access to the test mode
registers located in memory bank 2.
To exit Cal/Setup mode, re-enter the same address
sequence or power down the device. The ISL6295 will
always power up with test mode disabled.
The following registers are only available in test mode.
SMBUS ADDRESS REGISTERS - SMBaddr
(Address 80 Hex/128 Decimal)
SMBAdd
Reserved Reserved bit
BAND-GAP TRIM REGISTER - VBGT
(Address 81 Hex/129 Decimal)
Reserved Reserved bits
Vbgt
VOLTAGE REFERENCE TRIM REGISTER - VREFT
(Address 82Hex/130 Decimal)
GPIOen1
GPIOen1
7
7
7
6
‘ IO1 pin GPIO enable: Setting this bit to ‘1’ configures
6
Reserved
SMBus Address: Defines the SMBus address
for this device.
Band-gap Voltage trim setting:
the GPAD/IO1 pin to be used as a GPIO. When
enabled as GPIO, the GPAD accumulation function in
the ACCctrl register and the trip function in the TRIPctrl
register must be disabled.
hex 50
hex 52
hex 74
GPIOen0
Nominal setting = 0111
LSB voltage step = 4mV
5
SMBadd
6
5
4
4
5
3
23
4
2
3
3
1
Vreft
2
Vbgt
2
Reserved
1
1
0
0
0
ISL6295
GPIOen0
Vreft
MAIN OSCILLATOR TRIM REGISTER - MOSCT
(Address 83 Hex/131 Decimal)
Reserved Reserved bit. Must be set to ‘0’.
MOsct
CLOCK TEST MODE REGISTER - clkTM
(Address 84 Hex/132 Decimal)
Revision
ExtClk
clkTM
7
Reserved
7
6
Revision
IO0 pin GPIO enable: Setting this bit to ‘1’ configures
the NTC pin to be used as a GPIO. When enabled as
GPIO, the external temperature accumulation function
in the ACCctrl register must be disabled.
Voltage Reference trim setting:
Main Oscillator trim setting:
This is a read-only register identifying the silicon
revision number of the device.
External Clock enable: When set, the clock input
to the accumulators and digital control logic within
the ISL6295 is taken from the NTC pin.
For production test only. Must be set to ‘0’ during
normal operation.
Clock Test Mode control: These bits can be
used to speed up testing of the clock divider
chain used to generate the internal 2Hz
accumulator clock (Tacc). This test mode can
also be used to speed up the accumulator clock
for faster accumulator test time. During normal
operation, the 2Hz clock is derived by dividing
the main 131kHz reference clock through a
16-bit divider chain. The divider chain can be
bypassed as follows:
clkTM = 00: Normal operation (Tacc = 2Hz)
clkTM = 01: Use only divider bits 0-5
clkTM = 10: Use only divider bits 6-11
clkTM = 11: Use only divider bits 12-15
For production test only. Must be set to ‘00’
during normal operation.
Nominal setting = 011111
LSB voltage step = 0.2%
Nominal setting = 0111111
LSB frequency step = 0.25%
5
6
4
5
(Tacc = 2kHz)
(Tacc = 2kHz)
(Tacc = 8.2kHz)
3
4
MOsct
ExtClk
3
2
2
1
February 8, 2011
1
clkTM
FN9074.2
0
0