Overview
The ADuM4121ARIZ-RL is a high-voltage, isolated gate driver IC produced by Analog Devices Inc. This device employs Analog Devices' iCoupler® technology to provide precision isolation, making it suitable for applications requiring reliable control over switching characteristics in insulated gate bipolar transistor (IGBT) and MOSFET configurations.
The ADuM4121ARIZ-RL features a peak output current of 2 A and includes an internal Miller clamp to reduce the chance of Miller capacitance-induced turn-on. It also has under-voltage lockout (UVLO) protections for both the primary and secondary sides, ensuring stable operation under various voltage conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | - |
| Peak Output Current | 2 | A |
| Maximum Output Voltage | 35 | V |
| Primary Side Voltage Range | 2.5 to 6.5 | V |
| Propagation Delay (tDLH, tDHL) | Typically 100 ns | ns |
| Under-Voltage Lockout (UVLO) Thresholds | Varying thresholds for primary and secondary sides | V |
| Package Type | 8-SOIC (0.295", 7.50mm Width) | - |
Key Features
- Internal Miller Clamp: Reduces the chance of Miller capacitance-induced turn-on.
- Under-Voltage Lockout (UVLO): Protects both the primary and secondary sides with hysteresis to account for small voltage source ripple.
- Precision Isolation: Employing iCoupler® technology for reliable isolation.
- Thermal Shutdown Option: Can be enabled or disabled based on application requirements.
- High Peak Output Current: Up to 2 A for driving high-power MOSFETs and IGBTs.
Applications
The ADuM4121ARIZ-RL is typically used in high-voltage applications such as power supplies, motor control systems, and renewable energy systems. It is particularly suitable for driving insulated gate bipolar transistors (IGBTs) and MOSFETs in configurations that require precise isolation and reliable switching characteristics.
Example applications include:
- Power supplies with high isolation requirements.
- Motor control and drive systems.
- Renameable energy systems, such as solar and wind power inverters.
Q & A
- What is the peak output current of the ADuM4121ARIZ-RL?
The peak output current is 2 A.
- What type of isolation technology does the ADuM4121ARIZ-RL use?
The ADuM4121ARIZ-RL employs Analog Devices' iCoupler® technology for precision isolation.
- What is the purpose of the internal Miller clamp in the ADuM4121ARIZ-RL?
The internal Miller clamp reduces the chance of Miller capacitance-induced turn-on.
- Does the ADuM4121ARIZ-RL have under-voltage lockout (UVLO) protection?
Yes, it has UVLO protections for both the primary and secondary sides.
- What is the typical propagation delay of the ADuM4121ARIZ-RL?
The typical propagation delay (tDLH, tDHL) is around 100 ns.
- What package type is the ADuM4121ARIZ-RL available in?
The ADuM4121ARIZ-RL is available in an 8-SOIC package.
- Can the thermal shutdown feature be enabled or disabled on the ADuM4121ARIZ-RL?
Yes, the thermal shutdown feature can be enabled or disabled based on application requirements.
- What are some typical applications of the ADuM4121ARIZ-RL?
Typical applications include power supplies, motor control systems, and renewable energy systems.
- How does the ADuM4121ARIZ-RL ensure reliable switching characteristics?
The ADuM4121ARIZ-RL ensures reliable switching characteristics through its precision isolation and internal Miller clamp, along with UVLO protections.
- What is the maximum output voltage of the ADuM4121ARIZ-RL?
The maximum output voltage is 35 V.
