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DS2751 Datasheet

  • DS2751

  • 1-Cell Li-Ion or 3-Cell NiMH Fuel Gauge

  • Maxim   Maxim

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DS2751
Multichemistry Battery
Fuel Gauge
www.maxim-ic.com
FEATURES
摟
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 鹵1.9A Dynamic Range
- External Sense Resistor Configuration:
15.625mV LSB and 鹵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擄C Resolution
32 Bytes of Lockable EEPROM
16 Bytes of General-Purpose SRAM
Dallas 1-Wire
廬
Interface with Unique 64-Bit
Device Address
Supports 1-Cell Li+/Polymer or 3-Cell Ni
Battery Packs
3mm Dimension of 8-Pin TSSOP Package
Allows Mounting on Side of Thin Li+ and
Li+/Polymer Cells (Lead Free available)
Low Power Consumption:
- Active Current: 60mA (typ), 90mA (max)
- Sleep Current:
1mA (typ), 2mA (max)
PIN CONFIGURATION
V
IN
V
SS
PIO
V
DD
1
2
2
3
2
4
8
7
6
5
DQ
SNS
IS2
IS1
摟
DS2751E
8-Pin TSSOP Package
(Lead Free Available)
PIN DESCRIPTION
V
IN
V
SS
PIO
V
DD
IS1
IS2
SNS
DQ
Voltage-Sense Input
Device Ground
Programmable I/O Pin
Power-Supply Input (2.5V to 5.5V)
Current-Sense Input
Current-Sense Input
Sense Resistor Connection
Data Input/Output
摟
摟
摟
摟
摟
摟
摟
摟
摟
1-Wire is a registered trademark of Dallas Semiconductor.
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