DS2760AE Datasheet, PDF (1/25 Pages) Maxim Integrated Products – High-Precision Li+ Battery Monitor

DS2760
High-Precision Li+ Battery Monitor
www.maxim-ic.com
FEATURES
§ Li+ safety circuit
- Overvoltage protection
- Overcurrent/short circuit protection
- Undervoltage protection
§ Zero Volt 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: 90mA max
- Sleep current: 2mA max
PIN ASSIGNMENT
CC 1
16 VIN
PLS 2
15 VDD
DC 23
14 PIO
SNS 4
13 VSS
SNS 5
12 VSS
SNS ₆
11 VSS
DQ 7
10 PS
IS2 8
9 IS1
DS2760
16-Pin TSSOP Package
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
DS2760
Flip-Chip Packaging
Top View
PIN DESCRIPTION
CC - Charge control output
DC - Discharge control output
DQ - Data input/output
PIO - Programmable I/O pin
PLS - Battery pack positive terminal input
PS - Power switch sense input
VIN - Voltage sense input
V_DD - Power supply input (2.5V to 5.5V)
VSS - Device ground
SNS - Sense resistor connection
IS1 - Current sense input
IS2 - Current sense input
SNS Probe - Do not connect
VSS Probe - Do not connect
1-Wire is a registered trademark of Dallas Semiconductor.
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