ds2761 Maxim Integrated Products, Inc., ds2761 Datasheet - Page 3

• Manufacturer Part Number: ds2761
• Description: Ds2761 High-precision Li+ Battery Monitor
• Manufacturer: Maxim Integrated Products, Inc.

Three types of memory are provided on the DS2761 for battery information storage: EEPROM, lockable
EEPROM, and SRAM. EEPROM memory saves important battery data in true NV memory that is
unaffected by severe battery depletion, accidental shorts, or ESD events. Lockable EEPROM becomes
ROM when locked to provide additional security for unchanging battery data. SRAM provides
inexpensive storage for temporary data.
Figure 1. BLOCK DIAGRAM
SNS
PLS
DQ
IS1
IS2
V
PS
IN
THERMAL
SENSE
+
-
INTERFACE
ADDRESS
IS2
1-WIRE
MUX
AND
INTERNAL SENSE RESISTOR CONFIGURATION ONLY
25mW
TEST CURRENT AND RECOVERY CHARGE DETAIL
REFERENCE
VOLTAGE
ADC
PLS
IS1
3 of 24
V
SS
LOCKABLE EEPROM
LI-ION PROTECTION
STATUS / CONTROL
ACCUM. CURRENT
REGISTERS AND
USER MEMORY
TEMPERATURE
I
TST
CURRENT
VOLTAGE
SRAM
I
I
RC
TST
CHIP GROUND
TIMEBASE
V
DD
PIO
CC
DC
V
SS