Overview
The ADUM4121-1CRIZ-RL, produced by Analog Devices Inc., is a 2 A isolated, single-channel gate driver that utilizes Analog Devices' iCoupler® technology to provide precision isolation. This device is designed to control the switching characteristics of insulated gate bipolar transistors (IGBTs) and MOSFETs over a wide range of switching voltages. It features an internal Miller clamp to reduce the chance of Miller capacitance-induced turn-on and includes under-voltage lockout (UVLO) protections for both the primary and secondary sides of the device.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Current Rating | 2 A | Maximum current the driver can handle |
| Isolation Voltage | 5 kV | Maximum voltage the isolation barrier can withstand |
| Package Type | 8-SOIC (0.295, 7.50mm Width) | Physical package of the component |
| Pin Count | 8 | Number of pins on the component |
| Height Seated (Max) | 2.65 mm | Maximum allowable height when seated on a circuit board |
| RoHS Status | ROHS3 Compliant | Compliance with Restriction of Certain Hazardous Substances directive |
| UVLO Thresholds | Varying thresholds (see Table 12 in datasheet) | Under-voltage lockout thresholds for primary and secondary sides |
| Propagation Delay | tDLH and tDHL (see datasheet for specific values) | Time between input and output transitions |
Key Features
- Precision Isolation: Utilizes iCoupler technology for high isolation voltage up to 5 kV.
- Internal Miller Clamp: Reduces the chance of Miller capacitance-induced turn-on.
- Under-Voltage Lockout (UVLO): Protects both primary and secondary sides with hysteresis to account for voltage ripple.
- Thermal Shutdown Option: Can be enabled or disabled based on application needs.
- High Current Capability: Supports up to 2 A of gate drive current.
- Compact Package: 8-SOIC package for space-efficient designs.
Applications
The ADUM4121-1CRIZ-RL is typically used in applications requiring isolated gate drivers, such as:
- Power supplies and DC-DC converters.
- Motor control systems.
- Industrial automation and control systems.
- Medical devices requiring high isolation.
- Automotive and aerospace systems where high reliability and isolation are critical.
Q & A
- What is the maximum current rating of the ADUM4121-1CRIZ-RL?
The maximum current rating is 2 A.
- What is the isolation voltage of the ADUM4121-1CRIZ-RL?
The isolation voltage is up to 5 kV.
- What package type does the ADUM4121-1CRIZ-RL come in?
The component comes in an 8-SOIC package.
- Does the ADUM4121-1CRIZ-RL have under-voltage lockout protection?
Yes, it has UVLO protection for both primary and secondary sides.
- Can the thermal shutdown be enabled or disabled on the ADUM4121-1CRIZ-RL?
Yes, the thermal shutdown can be enabled or disabled based on application needs.
- What is the purpose of the internal Miller clamp in the ADUM4121-1CRIZ-RL?
The internal Miller clamp reduces the chance of Miller capacitance-induced turn-on.
- Is the ADUM4121-1CRIZ-RL RoHS compliant?
Yes, it is ROHS3 compliant.
- What are some typical applications of the ADUM4121-1CRIZ-RL?
Typical applications include power supplies, motor control systems, industrial automation, medical devices, and automotive/aerospace systems.
- How does the ADUM4121-1CRIZ-RL handle propagation delay?
The propagation delay is defined as tDLH and tDHL, and it depends on the loading conditions.
- What is the maximum allowable height of the ADUM4121-1CRIZ-RL when seated on a circuit board?
The maximum allowable height is 2.65 mm.
