ADBT1002

RECOMMENDED FOR NEW DESIGNS

ADBT1002

4-Channel AFE, Digital Controller, and PWM for Battery Formation and Testing

RECOMMENDED FOR NEW DESIGNS

ADBT1002 Typical Application Diagram slide

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Part Models 2

1ku List Price Starting From $22.31

Features

Precise measurement of the voltage and current
4 PWM control channels up to 14 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

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
SPI port control and status interface

Host interrupt on programmable status changes

Constant current and constant voltage 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

Additional Details

The ADBT1002 is a flexible, feature rich digital controller that targets high volume battery testing and formation manufacturing and precision battery test instrumentation applications. The ADBT1002 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 current sharing. Programmable protection features include overcurrent protection (OCP), OVP limiting, and external overtemperature protection (OTP).

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 ADBT1002 is available in a 100-lead LQFP_EP.

APPLICATIONS

Battery formation and testing
High efficiency battery test systems with recycle capability
Battery conditioning (charging and discharging) systems