DS2756 Maxim Integrated Products, DS2756 Datasheet - Page 5

• Manufacturer Part Number: DS2756
• Description: High-Accuracy Battery Fuel Gauge
• Manufacturer: Maxim Integrated Products

Figure 2. Functional Diagram
DETAILED PIN DESCRIPTION
SNS
Pin
VIN
DQ
IS2
1
2
3
4
5
6
7
8
THERMAL
SENSE
Name
SNS
PIO
V
V
DQ
IS1
IS2
V
DD
SS
IN
Description
Battery Voltage-Sense Input. Voltage measurement performed on V
in Voltage Register.
Device Ground and Current-Sense Resistor Connection. V
sense resistor.
General-Purpose Programmable I/O Pin or Optional Interrupt Output
Input Supply: +3.0V to +5.5V Input Range. Bypass V
Current-Sense Filter Input 1
Current-Sense Filter Input 2
Sense Resistor Connection. SNS attaches to pack end of current sense resistor.
Serial Interface Data I/O Pin. Bidirection data transmit and receive at 16kbps or 143kbps.
Optional interrupt output.
INTERFACE
ROM ID
1-WIRE
M
U
X
AND
10KW
REFERENCE
VOLTAGE
ADC
-
S
5 of 26
+
LOCKABLE EEPROM
STATUS / CONTROL
ACCUM. CURRENT
COMPARATORS
TEMPERATURE
CURRENT
VOLTAGE
BLOCKS
SRAM
10KW
DD
to V
SS
SS
chip ground
attaches to battery end of
with 0.1mF.
IN
PRECISION
TIMEBASE
Low Power
input and displayed
Oscillator
BIAS
VDD
PIO
IS1
VSS