DS2780E+T&R Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The DS2780E+T&R is a stand-alone fuel gauge IC from Analog Devices designed for single-cell Li-Ion or Li-Polymer battery management. It measures voltage, temperature, and current to compute accurate state-of-charge via a 1-Wire interface, housed in a compact 8-pin TSSOP package. Available in tape-and-reel for high-volume production with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- DS2780E+T&R Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -20.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of DS2780E+T&R?
- Accurate state-of-charge estimation using voltage, temperature, and current measurements
- Integrated 1-Wire interface simplifies host microcontroller connectivity with a single pin
- On-chip 32-byte EEPROM stores battery characteristics and capacity parameters
- Supports single-cell Li-Ion/Li-Polymer batteries with cell voltage measurement accuracy of ±7 mV
- Integrated current accumulation register for coulomb counting over time
- Temperature measurement range: -40°C to +85°C for wide operating environments
- Compact 8-pin TSSOP package for space-constrained portable designs
What is DS2780E+T&R used for?
The DS2780E+T&R is ideal for portable consumer electronics such as laptops, tablets, and power banks that require accurate battery state-of-charge reporting to the host processor. Its 1-Wire interface minimises pin count on the battery pack connector while still delivering voltage, current, and temperature data critical for user-facing charge indicators. It is also widely used in medical instruments and industrial handheld devices where reliable remaining capacity estimation is essential for safe operation.
What are the specifications of DS2780E+T&R?
| Manufacturer Package Code | 8-TSSOP_4.4-4.4_MM |
| Reach Compliance Code | Compliant |
| Date Of Intro | 2004-12-10 |
| YTEOL | 10 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | BATTERY GAUGE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.105mA |
| Supply Voltage-Max (Vsup) | 4.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 3.8V |
| Surface Mount | YES |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the DS2780E+T&R datasheet?
DS2780E+T&R Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for DS2780E+T&R?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How accurately does the DS2780E+T&R measure battery cell voltage for state-of-charge estimation?
The DS2780E+T&R measures single-cell Li-Ion battery voltage with an accuracy of ±7 mV across its full operating range. This precision, combined with integrated current accumulation via coulomb counting and a temperature sensor with ±1°C accuracy, allows the fuel gauge algorithm to maintain state-of-charge estimation error below 5% under typical discharge profiles, which is sufficient for consumer battery indicator applications.
What communication interface does the DS2780E+T&R use and how does it connect to a host MCU?
The DS2780E+T&R uses a 1-Wire interface, requiring only a single data line plus ground to communicate with the host microcontroller. The 1-Wire protocol operates at standard speed (16.3 kbit/s) or overdrive speed (142 kbit/s), making it straightforward to implement on any GPIO pin of a PIC, ARM, or AVR microcontroller using Analog Devices-provided firmware libraries.
For a compact wearable design, how small is the DS2780E+T&R footprint and what battery chemistry does it support?
The DS2780E+T&R comes in an 8-pin TSSOP package measuring approximately 4.4 mm × 4.4 mm, making it suitable for space-constrained wearable PCBs. It supports single-cell Li-Ion and Li-Polymer chemistries with cell voltage operating range from 2.5V to 4.3V, covering the full charge-discharge window of standard 3.7V nominal lithium cells used in smartwatches, fitness trackers, and wireless earbuds.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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