Overview
The ADBT1002BSWZ, produced by Analog Devices Inc., is a highly versatile and feature-rich digital controller designed specifically for high-volume battery testing and formation manufacturing. This integrated circuit combines a precision analog front end (AFE), digital control, and pulse-width modulation (PWM) capabilities, making it an ideal solution for precision battery test instrumentation applications. The ADBT1002BSWZ is optimized for minimal component count, maximum flexibility, and reduced design time, making it a valuable asset in battery testing and conditioning systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Switching Frequency (fSW) | 62.5 kHz | - | 500 kHz | - |
| PWM Resolution | - | - | 14 bits (effective) | - |
| Dead Time | 0 ns | - | 992.2 ns | - |
| Dead Time Resolution | - | - | 7.8125 ns | - |
| Loop Bandwidth (Cross over Frequency) | 10 kHz | - | 50 kHz | - |
| Current and Voltage Readout Rate | 31,250 Samples/sec | - | 15.26 Samples/sec | - |
| Output Data Resolution | - | - | 16 Bits | - |
| Operating Temperature | 0°C | - | 85°C | - |
| VDDDRV Current (Active) | 4.6 mA | - | 4.8 mA | - |
| VDDDRV Current (Standby) | 26 μA | - | 30 μA | - |
Key Features
- Precise measurement of voltage and current using high accuracy ADCs.
- 4 PWM control channels with up to 14 bits (effective) resolution.
- Selectable synchronous and asynchronous rectifier operation.
- Programmable dead time compensation and switching frequency from 62.5 kHz to 500 kHz.
- Multiphase operation and interchip digital current sharing.
- Interchip frequency synchronization and digital control loop with programmable PID loop filters.
- Fast dc bus voltage feedforward and integrated spectrum analysis per channel.
- SPI port control and status interface with host interrupt on programmable status changes.
- Constant current and constant voltage operating modes with 15-bit setpoint resolution.
- Input and output inrush current protection and external NTC thermistor temperature sensing.
- Internal die temperature measurement and user calibration of input voltages and currents.
Applications
- Battery formation and testing.
- High efficiency battery test systems with recycle capability.
- Battery conditioning (charging and discharging) systems.
Q & A
- What is the primary function of the ADBT1002BSWZ? The ADBT1002BSWZ is a digital controller designed for high-volume battery testing and formation manufacturing, combining precision analog front end, digital control, and PWM capabilities.
- How many PWM control channels does the ADBT1002BSWZ have? The ADBT1002BSWZ has 4 PWM control channels.
- What is the range of the switching frequency for the ADBT1002BSWZ? The switching frequency ranges from 62.5 kHz to 500 kHz in powers of 2 steps.
- Does the ADBT1002BSWZ support multiphase operation? Yes, the ADBT1002BSWZ supports multiphase operation and interchip digital current sharing.
- What is the resolution of the output data? The output data resolution is 16 bits.
- What are the operating temperature ranges for the ADBT1002BSWZ? The operating temperature ranges from 0°C to 85°C.
- Does the ADBT1002BSWZ have built-in temperature sensing? Yes, it has internal die temperature measurement and supports external NTC thermistor temperature sensing.
- What communication interface does the ADBT1002BSWZ use? The ADBT1002BSWZ uses an SPI port for control and status interface.
- Can the ADBT1002BSWZ operate in constant current and constant voltage modes? Yes, it supports both constant current and constant voltage operating modes with 15-bit setpoint resolution.
- What kind of protection features does the ADBT1002BSWZ have? The ADBT1002BSWZ includes input and output inrush current protection, overcurrent protection (OCP), and overvoltage protection (OVP).
