Overview
The ISO8200B is a galvanic isolated 8-channel driver produced by STMicroelectronics, designed to operate with a very low supply current. It features two independent galvanic isolated voltage domains, one for the power stage (Vcc) and one for the digital stage (Vdd). This device is intended to drive various types of loads with one side connected to ground, offering robust protection mechanisms such as active channel current limitation, thermal shutdown, and automatic restart. It also includes additional embedded functions like loss of GND protection, undervoltage shutdown with hysteresis, and a reset function for immediate power output shutdown.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Input Voltage (Vcc) | 10.5 | - | 36 | V |
| Output Current per Channel (IOUT) | - | - | 0.7 | A |
| On-State Resistance (RDS(on)) | - | - | 0.12 | Ω |
| Digital Supply Voltage (Vdd) | 2.8 | 3.0 | 5.5 | V |
| Digital Supply Current (Idd) at Vdd = 5 V | 4.5 | 6 | - | mA |
| Junction Shutdown Temperature (TJSD) | 150 | - | 170 | °C |
| Case Shutdown Temperature (TCSD) | 115 | - | 145 | °C |
Key Features
- Parallel input interface
- Direct and synchronous control mode
- High common mode transient immunity
- Output current: 0.7 A per channel
- Short-circuit protection
- Channel overtemperature protection
- Thermal independence of separate channels
- Common output disable pin
- Case overtemperature protection
- Loss of GNDcc and Vcc protection
- Undervoltage shutdown with auto-restart and hysteresis
- Overvoltage protection (Vcc clamping)
- Very low supply current
- Common fault open-drain output
- 5 V and 3.3 V TTL/CMOS compatible I/Os
- Fast demagnetization of inductive loads
- Reset function for IC output disable
- ESD protection
- IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, and IEC 61000-4-8 compliant
- UL1577 certification
Applications
- Programmable logic control
- Industrial PC peripheral input/output
- Numerical control machines
- Drivers for all types of loads (resistive, capacitive, inductive)
Q & A
- What is the ISO8200B? The ISO8200B is a galvanic isolated 8-channel driver featuring a very low supply current, designed by STMicroelectronics.
- What are the key voltage domains of the ISO8200B? The ISO8200B has two independent galvanic isolated voltage domains: Vcc for the power stage and Vdd for the digital stage.
- What is the maximum output current per channel? The maximum output current per channel is 0.7 A.
- What protection mechanisms does the ISO8200B offer? The ISO8200B offers short-circuit protection, channel overtemperature protection, case overtemperature protection, undervoltage shutdown with auto-restart and hysteresis, and overvoltage protection.
- Is the ISO8200B compatible with TTL/CMOS logic? Yes, the ISO8200B is compatible with 5 V and 3.3 V TTL/CMOS I/Os.
- What are the operating temperature ranges for the ISO8200B? The operating temperature range is from -40°C to 125°C.
- Does the ISO8200B have ESD protection? Yes, the ISO8200B includes ESD protection.
- What certifications does the ISO8200B hold? The ISO8200B is compliant with IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5, and IEC 61000-4-8, and it also holds UL1577 certification.
- What types of loads can the ISO8200B drive? The ISO8200B can drive resistive, capacitive, and inductive loads.
- How does the ISO8200B handle thermal issues? The ISO8200B has thermal independence of separate channels, junction temperature detection, and case temperature detection, ensuring automatic shutdown and restart when temperature thresholds are exceeded.
