Overview
The AD8452ASTZ-RL, produced by Analog Devices Inc., is a highly integrated IC that combines a precision analog front-end controller, a switch mode power supply (SMPS), and a pulse-width modulator (PWM) driver into a single silicon platform. This device is specifically designed for high-volume battery testing and formation manufacturing, offering precise measurement and control capabilities for battery charge and discharge cycles.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range (AVCC) | 10 | 36 | V | |
| PWM Supply Voltage (VIN – DGND) | 6 | 60 | V | |
| Switching Frequency | 50 kHz | 300 kHz | ||
| Current Sense CMRR | 120 dB | |||
| Gain Drift | 3 ppm/°C | |||
| Offset Voltage Drift | 0.6 µV/°C | |||
| Temperature Range for Specified Performance | -40 °C | 85 °C |
Key Features
- Precision instrumentation amplifier (in-amp) for measuring battery charge/discharge current with a fixed gain of 66.
- Difference amplifier for measuring battery voltage with a fixed gain of 0.4.
- High PWM linearity with internal ramp voltage and user-controlled switching frequency from 50 kHz to 300 kHz.
- Synchronization output or input with adjustable phase shift.
- Programmable soft start and fault detection capabilities.
- Energy recycling from discharging battery into a DC bus.
- Full-featured system evaluation board compatible with the System Demonstration Platform (SDP-S).
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 AD8452ASTZ-RL?
The AD8452ASTZ-RL is designed for high-volume battery testing and formation manufacturing, combining a precision analog front-end controller, SMPS, and PWM driver.
- What is the operating voltage range of the AD8452ASTZ-RL?
The operating voltage range is from 10 V to 36 V.
- What are the key amplifiers in the AD8452ASTZ-RL?
The device includes a precision instrumentation amplifier (in-amp) and a difference amplifier.
- What is the switching frequency range of the AD8452ASTZ-RL?
The switching frequency can be controlled from 50 kHz to 300 kHz.
- Does the AD8452ASTZ-RL support synchronization?
Yes, it supports synchronization output or input with adjustable phase shift.
- What are the main applications of the AD8452ASTZ-RL?
The main applications include battery formation and testing, high efficiency battery test systems, and battery conditioning systems.
- How does the AD8452ASTZ-RL handle energy recycling?
The device supports energy recycling from discharging battery into a DC bus.
- What is the temperature range for specified performance of the AD8452ASTZ-RL?
The temperature range is from -40 °C to 85 °C.
- Does the AD8452ASTZ-RL have fault detection capabilities?
Yes, it includes fault detection and active low input fault pin.
- Is the AD8452ASTZ-RL compatible with any evaluation platforms?
Yes, it is compatible with the System Demonstration Platform (SDP-S).
