Data Sheet
ADBT1000
4-Channel AFE, Digital Controller, and PWM for Battery Formation and Testing
FEATURES
APPLICATIONS
► Precise measurement of the voltage and current
► 4 PWM control channels up to 18 bits (effective) resolution
► Selectable synchronous and asynchronous rectifier operation
► Programmable dead time compensation
► Programmable switching frequency from 62.5 kHz to 500 kHz
in powers of 2 steps
► Battery formation and testing
► High efficiency battery test systems with recycle capability
► Battery conditioning (charging and discharging) systems
GENERAL DESCRIPTION
The ADBT1000 is a flexible, feature rich digital controller that tar-
gets high volume battery testing and formation manufacturing and
precision battery test instrumentation applications. The ADBT1001
is optimized for minimal component count, maximum flexibility, and
minimum design time. Features include differential remote voltage
sense, current sense, pulse-width modulation (PWM) generation,
frequency synchronization, overvoltage protection (OVP), and cur-
rent sharing. Programmable protection features include overcurrent
protection (OCP), OVP limiting, and external overtemperature pro-
tection (OTP).
► Multiphase operation
► Interchip digital current sharing
► Interchip frequency synchronization
► Digital control loop
► Programmable PID loop filters
► Fast DC bus voltage feedforward
► Integrated spectrum analysis per channel
► Measure load impedance
► SPI port control and status interface
► Host interrupt on programmable status changes
► CC, CV, CP, and CR operating modes
► 15-bit setpoint resolution
► Input and output inrush current protection
► External NTC thermistor temperature sensing
► Internal die temperature measurement
► User calibration of input voltages and currents
► 0°C to 85°C operation
Parameters can be programmed over the serial peripheral interface
(SPI), providing extensive programming of the integrated loop filter,
PWM signal timing, and soft start timing. The SPI provides access
to the many monitoring and system test functions. Reliability is
improved through a built-in checksum and programmable protection
circuits.
A comprehensive graphical user interface (GUI) is provided for
simple system and channel configuration and programming of
the safety features. The ADBT1000 is available in a 100-lead
LQFP_EP.
TYPICAL APPLICATION DIAGRAM
Figure 1.
For more information about the ADBT1000, contact ADBT1000@analog.com
Analog Devices is in the process of updating documentation to provide terminology and language that is culturally appropriate. This is a process
with a wide scope and will be phased in as quickly as possible. Thank you for your patience.
Rev. Sp0
Information furnished by Analog Devices is believed to be accurate and reliable "as is". However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to
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change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and
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