Overview
The ISO8200BQTR, produced by STMicroelectronics, is a galvanic isolated octal high-side smart power solid-state relay. This device features eight independent channels, each capable of driving various types of loads, including resistive, capacitive, and inductive loads. It is designed with two independent galvanic isolated voltage domains: VCC for the power stage and VDD for the digital stage. This isolation ensures high reliability and safety in industrial applications. The IC is notable for its very low supply current and comprehensive protection features, including active channel current limitation, thermal shutdown, and automatic restart for each channel.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| VCC (Process Stage supply voltage) | -0.3 | - | 45 | V |
| VDD (Control Logic Stage supply voltage) | -0.3 | - | 6 | V |
| RDS(on) per channel | - | 0.12 | - | Ω |
| IOUT (Channel output current, continuous) | - | - | Internally limited | A |
| TJ (Junction operating temperature) | -40 | - | 125 | °C |
| TSTG (Storage temperature) | -55 | - | 150 | °C |
| Rthj-case (Thermal resistance, junction-case) | - | - | 2 | °C/W |
| Rthj-amb (Thermal resistance, junction-ambient) | - | - | 15 | °C/W |
Key Features
- Galvanic isolation between the logic and process stages, ensuring high safety and reliability.
- Eight independent channels, each capable of driving resistive, capacitive, and inductive loads.
- Low RDS(on) of 0.12 Ω per channel, minimizing power losses.
- Comprehensive protection features including active channel current limitation, thermal shutdown, and automatic restart for each channel.
- Loss of ground protection, VCC and VDD under-voltage lockout (UVLO) with hysteresis, and reset function for immediate power output shutdown.
- Watchdog function to ensure safe operation of the process stage when the VDD supply voltage is missing.
- Synchronous Control Mode (SCM) to reduce output jitter and synchronize outputs across multiple devices.
- Internal refresh signal to update the configuration of the channel outputs.
- FAULT pin for common fault indication, active low.
Applications
- Programmable logic control (PLC) systems.
- Industrial PC peripheral input/output.
- Numerical control machines.
- Drivers for all types of loads (resistive, capacitive, inductive).
- Industrial automation and control systems.
- Power management in industrial and commercial environments.
Q & A
- What is the ISO8200BQTR?
The ISO8200BQTR is a galvanic isolated octal high-side smart power solid-state relay produced by STMicroelectronics.
- What are the key supply voltage ranges for the ISO8200BQTR?
The device operates with a process stage supply voltage (VCC) range of 10.5 to 36 V and a control logic stage supply voltage (VDD) range of 3.3 to 6 V.
- What types of loads can the ISO8200BQTR drive?
The ISO8200BQTR can drive resistive, capacitive, and inductive loads.
- What protection features does the ISO8200BQTR have?
The device includes active channel current limitation, thermal shutdown, automatic restart for each channel, loss of ground protection, VCC and VDD under-voltage lockout (UVLO) with hysteresis, and a watchdog function.
- How does the synchronous control mode (SCM) work?
The SCM allows the device to reduce output jitter and synchronize outputs across multiple devices by independently driving the SYNC and LOAD inputs.
- What is the purpose of the FAULT pin?
The FAULT pin is an open-drain, active low, fault indication pin that signals any fault conditions such as thermal shutdown or current limitation.
- What are the thermal resistance values for the ISO8200BQTR?
The thermal resistance from junction to case (Rthj-case) is 2 °C/W, and from junction to ambient (Rthj-amb) is 15 °C/W.
- What is the storage temperature range for the ISO8200BQTR?
The storage temperature range is -55 to 150 °C.
- What package type is the ISO8200BQTR available in?
The device is available in a TFQFPN32 package.
- What are some common applications of the ISO8200BQTR?
Common applications include programmable logic control (PLC) systems, industrial PC peripheral input/output, numerical control machines, and drivers for various types of loads.
