The DS2745 provides current-flow, voltage, and temperature measurement data to support batterycapacity monitoring in cost-sensitive applications. The DS2745 can be mounted on either the host side or pack side of the application. Current measurement and coulomb counting is accomplished by monitoring the voltage drop across an external sense resistor, voltage .
16-Bit Bidirectional Current Measurement 1.56V LSB, ±51.2mV Dynamic Range 104A LSB, ±3.4A Dynamic Range (RSNS = 15m) Current Accumulation Register Resolution 6.25Vhr LSB, ±204.8mVh Range 0.417mAhr LSB, ±13.65Ah Range (RSNS = 15m) 11-Bit Voltage Measurement 4.88mV LSB, 0V to 4.5V Input Range 11-Bit Temperature Measurement 0.125ºC Resolution, -20ºC to +70ºC Industry Standard I2C
* Interface Low Power Consumption: Active Current: 70A typical, 100A max Sleep Current: 1A typical, 3A max
PIN CONFIGURATION
SCL SDA PIO SNS
1 2 3 4 8 7 6 5
VDD VIN CTG VSS
MAX See Table 1 for Ordering Inform.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | DS2740 |
Maxim Integrated |
High-Precision Coulomb Counter | |
2 | DS2741 |
Maxim Integrated Products |
Current Monitor and Accumulator | |
3 | DS2746 |
Manix |
Low-Cost 2-Wire Battery Monitor | |
4 | DS2703 |
Dallas Semiconductor |
SHA-1 Battery Pack Authentication IC | |
5 | DS2704 |
Maxim Integrated Products |
1280-Bit EEPROM | |
6 | DS2705 |
Maxim Integrated Products |
SHA-1 Authentication Master | |
7 | DS2710 |
Maxim |
Single-Cell NiMH Charger | |
8 | DS2711 |
Maxim Integrated Products |
(DS2711 / DS2712) Loose Cell NiMH Chargers | |
9 | DS2712 |
Maxim Integrated Products |
(DS2711 / DS2712) Loose Cell NiMH Chargers | |
10 | DS2714 |
Maxim Integrated Products |
Quad Loose Cell NiMH Charger | |
11 | DS2715 |
Dallas Semiconducotr |
NiMH Battery Pack Charge Controller | |
12 | DS2720 |
Dallas Semiconducotr |
Efficient/ Addressable Single-Cell Rechargeable Lithium Protection IC |