- RS Stock No.:
- 190-7858
- Mfr. Part No.:
- DS2740U+
- Brand:
- Maxim Integrated
- RS Stock No.:
- 190-7858
- Mfr. Part No.:
- DS2740U+
- Brand:
- Maxim Integrated
Technical Reference
Legislation and Compliance
Product Details
15-Bit Bidirectional Current Measurement (DS2740U)
1.56μV LSB and ±51.2mV Dynamic Range
78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
13-Bit Bidirectional Current Measurement (DS2740BU)
6.25μV LSB and ±51.2mV Dynamic Range
312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
625μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
Analog Input Filter (IS1, IS2) Extends Dynamic Range for Pulse-Load Applications
Current Accumulation Register Resolution
6.25μVhr (Both DS2740U and DS2740BU)
0.3125mAhr with External 20mΩ RSNS
0.6250mAhr with External 10mΩ RSNS
Dallas 1-Wire Interface
Unique 64-Bit Device Address
Standard and Overdrive Timings (OVD)
Low Power Consumption:
Active Current: 65μA max
Sleep Current: 1μA max
Applications
Cell Phones
Digital Still Cameras
Portable Entertainment Devices
Smart Battery Packs/Chargers
1.56μV LSB and ±51.2mV Dynamic Range
78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
13-Bit Bidirectional Current Measurement (DS2740BU)
6.25μV LSB and ±51.2mV Dynamic Range
312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
625μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
Analog Input Filter (IS1, IS2) Extends Dynamic Range for Pulse-Load Applications
Current Accumulation Register Resolution
6.25μVhr (Both DS2740U and DS2740BU)
0.3125mAhr with External 20mΩ RSNS
0.6250mAhr with External 10mΩ RSNS
Dallas 1-Wire Interface
Unique 64-Bit Device Address
Standard and Overdrive Timings (OVD)
Low Power Consumption:
Active Current: 65μA max
Sleep Current: 1μA max
Applications
Cell Phones
Digital Still Cameras
Portable Entertainment Devices
Smart Battery Packs/Chargers
Specifications
Attribute | Value |
---|---|
Mounting Type | Surface Mount |
Package Type | μMax |
IC Type | Battery Fuel Gauge IC |
Pin Count | 8 |
Typical Operating Supply Voltage | 2.7 to 5.5 V |
Dimensions | 3.1 x 3.1 x 0.95mm |
Length | 3.1mm |
Width | 3.1mm |
Height | 0.95mm |
Maximum Operating Temperature | +85 °C |
Minimum Operating Temperature | -40 °C |