DS2761
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ORDERING INFORMATION
PART MARKING DESCRIPTION
DS2761AE+ D2761EA TSSOP, External Sense Resistor, 4.275V V
OV
, Lead-Free
DS2761BE+ D2761EB TSSOP, External Sense Resistor, 4.35V V
OV
, Lead-Free
DS2761AE+T&R D2761EA DS2761AE+ on Tape-and-Reel, Lead-Free
DS2761BE+T&R D2761EB DS2761BE+ on Tape-and-Reel, Lead-Free
DS2761AE+025 2761A25
TSSOP, 25mW Sense Resistor, 4.275V V
OV
, Lead-Free
DS2761BE+025 2761B25
TSSOP, 25mW Sense Resistor, 4.35V V
OV
, Lead-Free
DS2761AE+025/T&R 2761A25 DS2761AE+025 in Tape-and-Reel, Lead-Free
DS2761BE+025/T&R 2761B25 DS2761BE+025 in Tape-and-Reel, Lead-Free
DS2761AX-025/T&R DS2761AR
Flip-Chip, 25mW Sense Resistor, Tape-and-Reel, 4.275V V
OV
DS2761BX-025/T&R DS2761BR
Flip-Chip, 25mW Sense Resistor, Tape-and-Reel, 4.35V V
OV
DS2761AX/T&R DS2761A Flip-Chip, External Sense Resistor, Tape-and-Reel, 4.275V V
OV
DS2761BX/T&R DS2761B Flip-Chip, External Sense Resistor, Tape-and-Reel, 4.35V V
OV
DS2761AE D2761EA TSSOP, External Sense Resistor, 4.275V V
OV
DS2761BE D2761EB TSSOP, External Sense Resistor, 4.35V V
OV
DS2761AE/T&R D2761EA DS2761AE on Tape-and-Reel
DS2761BE/T&R D2761EB DS2761BE on Tape-and-Reel
DS2761AE-025 2761A25
TSSOP, 25mW Sense Resistor, 4.275V V
OV
DS2761BE-025 2761B25
TSSOP, 25mW Sense Resistor, 4.35V V
OV
DS2761AE-025/T&R 2761A25 DS2761AE-025 in Tape-and-Reel
DS2761BE-025/T&R 2761B25 DS2761BE-025 in Tape-and-Reel
Note: Additional V
OV
options are available, contact Maxim/Dallas Semiconductor sales.
DESCRIPTION
The DS2761 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 DS2761 is a key component
in applications including remaining capacity estimation, safety monitoring, and battery-specific data
storage.
Through its 1-Wire interface, the DS2761 gives the host system read/write access to status and control
registers, instrumentation registers, and general-purpose data storage. Each device has a unique factory-
programmed 64-bit net address that allows it to be individually addressed by the host system, supporting
multibattery operation.
The DS2761 is capable of performing temperature, voltage, and current measurement to a resolution
sufficient to support process monitoring applications such as battery charge control, remaining capacity
estimation, and safety monitoring. Temperature is measured using an on-chip sensor, eliminating the need
for a separate thermistor. Bidirectional current measurement and accumulation are accomplished using
either an internal 25mW sense resistor or an external device. The DS2761 also features a programmable
I/O pin that allows the host system to sense and control other electronics in the pack, including switches,
vibration motors, speakers, and LEDs.
