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DS2760EA-025 Datasheet

  • DS2760EA-025

  • High Precision Li-Ion Battery Monitor

  • 25頁

  • DALLAS   DALLAS

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PRELIMINARY
DS2760
High Precision Li-Ion Battery Monitor
www.dalsemi.com
FEATURES
Li-Ion safety circuit
- Overvoltage protection
- Overcurrent/short circuit protection
- Undervoltage protection
Available in two configurations:
- Internal 25 m鈩?sense resistor
- External user-selectable sense resistor
Current measurement
- 12-bit bi-directional measurement
- Internal sense resistor configuration:
0.625 mA LSB and 鹵1.8A dynamic range
- External sense resistor configuration:
15.625
碌V
LSB and 鹵64 mV dynamic range
Current accumulation
- Internal sense resistor: 0.25 mAhr LSB
- External sense resistor: 6.25
碌Vhr
LSB
Voltage measurement with 4.88 mV resolution
Temperature measurement using integrated
sensor with 0.125擄C resolution
System power management and control feature
support
32 bytes of lockable EEPROM
16 bytes of general purpose SRAM
Dallas 1-Wire
廬
interface with unique 64-bit
device address
Low power consumption:
- Active current: 80
碌A
max
- Sleep current:
2
碌A
max
PIN ASSIGNMENT
CC
PLS
DC
SNS
SNS
SNS
DQ
IS2
1
2
3
2
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN
VDD
PIO
VSS
VSS
VSS
PS
IS1
DS2760
Flip-Chip Packaging
SNS
DQ
IS2
IS1
VSS
PS
PLS
DC
CC
VIN VDD
NC
NC
NC
NC
PIO
NC
SNS
Probe
VSS
Probe
DS2760
16-Pin TSSOP Package
PIN DESCRIPTION
- Charge control output
- 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
VDD- Power supply input (2.5V-5.5V)
VSS - Device ground
SNS - Sense resistor connection
IS1 - Current sense input
IS2 - Current sense input
NC - Not connected
SNS Probe 鈥?Do not connect
VSS Probe 鈥?Do not connect
CC
DC
1 of 25
092000

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