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AD7280AWBSTZ - ADI
Manufacturer:
ADI
ManyChip's Part#:
MC510661
Category:
Battery Management IC
Package:
LQFP-48
Datasheet:
Datasheet 3D Model
Description:
ANALOG DEVICES AD7280AWBSTZ Battery Li-Ion Monitor IC, Serial Interface, 6 Auxiliary ADC Inputs, 8V to 30V supply, LQFP-48
Stock Locations:
Availability:
245 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 13.98

Updated at 17/06/2025 10:30:15(UTC+8)

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Description

Product Details
The AD7280A contains all the functions required for general-purpose monitoring of stacked lithium ion batteries as used in hybrid electric vehicles, battery backup applications, and power tools. The part has multiplexed cell voltage and auxiliary ADC measurement channels for up to six cells of battery management. An internal ±3 ppm reference is provided that allows a cell voltage accuracy of ±1.6 mV. The ADC resolution is 12 bits and allows conversion of up to 48 cells within 7 μs.
The AD7280A operates from just one VDD supply that has a range of 8 V to 30 V (with an absolute maximum rating of 33 V). The part provides six differential analog input channels to accommodate large common-mode signals across the full VDD range. Each channel allows an input signal range, VIN(+) − VIN(−), of 1 V to 5 V. The input pins assume a series stack of six cells. In addition, the part includes six auxiliary ADC input channels that can be used for temperature measurement or system diagnostics.
The AD7280A includes on-chip registers that allow a sequence of channel measurements to be programmed to suit the applications requirements.
The AD7280A also includes a dynamic alert function that can detect if the cell voltages or auxiliary ADC inputs exceed an upper or lower limit defined by the user. The AD7280A has cell balancing interface outputs designed to control external FET transistors to allow discharging of individual cells.
The AD7280A includes a built in self-test feature that internally applies a known voltage to the ADC inputs.
There is a daisy-chain interface that allows up to eight parts to be stacked without the need for individual device isolation.
The AD7280A requires only one supply pin that takes 6.5 mA under normal operation, while converting at 1 MSPS.
All this functionality is provided in a 48-lead LQFP package operating over a temperature range of −40°C to +105°C.
**Applications**
Lithium ion battery monitoring
Electric and hybrid electric vehicles
Power supply back up
Power tools
### Features and Benefits
12-bit ADC, 1 μs per channel conversion time
6 analog input channels,
CM range 0.5 V to 27.5 V
6 auxiliary ADC Inputs
±1.6 mV cell voltage accuracy
On-chip voltage regulator
Cell balancing interface
Daisy-chain interface
Internal reference: ±3 ppm/°C
1.8 μA power-down current
High input impedance
Serial interface with alert function
See data sheet for additional features

Show

AD7280AWBSTZ Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Surface Mount
Number of Pins	48 Pin
Case/Package	LQFP-48
Supply Voltage (DC)	8.00V (min)
Output Voltage	5.2 V
Output Current	5 mA
Number of Positions	48 Position
Power Dissipation	220 mW
Output Voltage (Max)	30 V
Output Voltage (Min)	8 V
Output Current (Max)	5 mA
Operating Temperature (Max)	105 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	220 mW
Supply Voltage	8V ~ 30V
Supply Voltage (Max)	30 V
Supply Voltage (Min)	8 V
	Show
Size-Length	7.2 mm
Size-Width	7 mm
Size-Height	1.4 mm
Operating Temperature	-40℃ ~ 105℃
Product Lifecycle Status	Active
Packaging	Tray
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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