DS2762 Datasheet, PDF (1/25 Pages) Maxim Integrated Products – High-Precision Li+ Battery Monitor With Alerts

DS2762
High-Precision Li+ Battery Monitor With Alerts
www.maxim-ic.com
GENERAL DESCRIPTION
The DS2762 high-precision Li+ battery monitor is a
data-acquisition, information-storage, and safety-
protection device tailored for cost-sensitive battery
pack applications. This low-power device integrates
precise temperature, voltage, and current
measurement, nonvolatile (NV) data storage, and Li+
protection into the small footprint of either a TSSOP
package or flip-chip package. The DS2762 is a key
component in applications including remaining
capacity estimation, safety monitoring, and battery-
specific data storage.
PIN CONFIGURATIONS
TOP VIEW
CC 1
PLS 2
DC 23
SNS 4
SNS 5
SNS 6
DQ 7
IS2 8
16 VIN
15 VDD
14 PIO
13 VSS
12 VSS
11 VSS
10 PS
9 IS1
TSSOP
12 3 4
PLS DC
A
SNS
B
DQ
CC ^SNS
PROBE
VIN ^VSS
PROBE
VDD PIO
VSS
C
IS2
D
IS1
E
PS
F
FLIP CHIP
(top view – bumps on bottom)
FEATURES
§ Li+ Safety Circuit
Overvoltage Protection
Overcurrent/Short-Circuit Protection
Undervoltage Protection
§ Host Alerted When Accumulated Current or
Temperature Exceeds User-Selectable Limits
§ 0V Battery Recovery Charge
§ Available in Two Configurations:
Internal 25mW Sense Resistor
External User-Selectable Sense Resistor
§ Current Measurement
12-Bit Bidirectional Measurement
Internal Sense Resistor Configuration:
0.625mA LSB and ±1.9A Dynamic Range
External Sense Resistor Configuration:
15.625mV LSB and ±64mV Dynamic Range
§ Current Accumulation:
Internal Sense Resistor: 0.25mAhr LSB
External Sense Resistor: 6.25mVhr LSB
§ Voltage Measurement with 4.88mV Resolution
§ Temperature Measurement Using Integrated
Sensor with 0.125°C Resolution
§ System Power Management and Control
Feature Support
§ 32 Bytes of Lockable EEPROM
§ 16 Bytes of General-Purpose SRAM
§ Dallas 1-Wire^® Interface with Unique 64-Bit
Device Address
§ Low-Power Consumption:
Active Current: 60mA typ, 90mA max
Sleep Current: 1mA typ, 2mA max
APPLICATIONS
PDAs
Cell Phones/Smartphones
Digital Cameras
ORDERING INFORMATION
PART
TEMP RANGE PIN-PACKAGE
DS2762BE
-20°C to +70°C 16 TSSOP
1-Wire is registered trademark of Dallas Semiconductor.
Selector Guide appears at end of data sheet, for additional
options.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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REV: 111703